Citation:

epic.45942.d002

Name: Annotated record of the detailed examination of Mn deposits from the HMS Challenger stations
Published: 1891
License: https://creativecommons.org/licenses/by/3.0/

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Project(s):

NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)

Coverage:

Median Latitude: 2.281636 * Median Longitude: -123.228351 * South-bound Latitude: -47.416667 * West-bound Longitude: 8.200000 * North-bound Latitude: 40.283333 * East-bound Longitude: -13.083333

Date/Time Start: 1873-02-02T00:00:00 * Date/Time End: 1876-05-06T00:00:00

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 80 m

Event(s):

CHA-3 * Latitude: 25.750000 * Longitude: -20.233333 * Date/Time: 1873-02-18T00:00:00 * Elevation: -2504.0 m * Campaign: * Basis: H.M.S. Challenger (1872) * Method/Device: Grab (GRAB)

CHA-7 * Latitude: 23.383333 * Longitude: -31.516667 * Date/Time: 1873-02-24T00:00:00 * Elevation: -4516.0 m * Campaign: * Basis: H.M.S. Challenger (1872) * Method/Device: Grab (GRAB)

CHA-8 * Latitude: 23.200000 * Longitude: -32.933333 * Date/Time: 1873-02-25T00:00:00 * Elevation: -4433.0 m * Campaign: * Basis: H.M.S. Challenger (1872) * Method/Device: Grab (GRAB)

Comment:

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Murray, John
2	Identification	ID		Murray, John
3	DEPTH, sediment/rock	Depth sed	m	Murray, John		Geocode
4	Position	Position		Murray, John	Visual description
5	Deposit type	Deposit type		Murray, John
6	Quantity of deposit	Quantity		Murray, John
7	Size	Size		Murray, John
8	Substrate type	Substrate		Murray, John
9	Sediment type	Sediment		Murray, John
10	Color description	Color desc		Murray, John	Visual description
11	Description	Description		Murray, John
12	Page(s)	Page(s)		Murray, John

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1501 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 ID	3 Depth sed [m]	4 Position	5 Deposit type	6 Quantity	7 Size	8 Substrate	9 Sediment	10 Color desc	11 Description	12 Page(s)
CHA-VIIB	CHA-VIIB-1	0	In sediment	Mn grain	Several			Globigerina ooze	Yellowish; granular; slightly coherent; breaking up readily in water. residue red-brown.	Manganese grains.	36-37
CHA-3	CHA-3-1	0	In sediment	Mn grain	Several			Pteropod ooze	Light brown with pink tinge; very slightly coherent; granular. residue red.	Manganese grains.	40-41
CHA-3	CHA-3-2	0	Surface	Mn nodule	Several			Pteropod ooze	Light brown with pink tinge; very slightly coherent; granular. residue red.	In the dredge there were manganese nodules.	40-41
CHA-3	CHA-3-3	0	Surface	Mn coating	1		Coral	Pteropod ooze	Light brown with pink tinge; very slightly coherent; granular. residue red.	In the dredge there were fragments of a dead coral covered with a thin coating of black shining manganese.	40-41
CHA-7	CHA-7-1	0	In sediment	Mn grain	Several			Red clay	Plastic, homogeneous, unctuous, drying into coherent red coloured lumps which break up readily in water, lustrous streak. residue brick-red.	Manganese grains.	40-41
CHA-8	CHA-8-1	0	In sediment	Mn grain	Several			Red clay	Plastic; unctuous, homogeneous, drying into coherent red coloured lumps which breakup readily in water; lustrous streak. residue brick-red.	Manganese grains.	42-43
CHA-9	CHA-9-1	0	In sediment	Mn grain	Several			Red clay	Plastic; unctuous, homogeneous, drying into coherent red coloured lumps which breakup readily in water; lustrous streak. residue dark red-brown.	Manganese grains.	42-43
CHA-12	CHA-12-1	0	In sediment	Mn grain	Several			Globigerina ooze	Granular; many black particles. residue red.	Manganese grains; pumice. the large quantity of manganese and palagonite is remarkable and accounts for the large percentage and size of the minerals.	42-43
CHA-13	CHA-13-1	0	In sediment	Mn grain	Few			Globigerina ooze	Light reddish yellow; slightly coherent; gritty; drying into friable lumps. residue red.	Palagonite, glassy vocanic particles with a few manganese grains.	42-43
CHA-15	CHA-15-1	0	In sediment	Mn grain	Several			Globigerina ooze	Pale yellow-brown; granular; slightly coherent. residue red.	Manganese grains.	42-43
CHA-16	CHA-16-1	0	In sediment	Mn grain	Several	0.0-0.01 cm		Globigerina ooze	Light yellow-brown; granular; slightly coherent. residue brown.	Manganese grains; pumice. The manganese grains found among the residue left on treating the deposit with acid were round and had a diameter of about 0-1 mm.	42-43
CHA-16	CHA-16-2	0	Surface	Mn nodule	Few		Core; concretion	Globigerina ooze	Light yellow-brown; granular; slightly coherent. residue brown.	The dredge brought up some concretions covered with two or three sharks' teeth and valves of scalpellum also covered with a thin coating of manganese.	42-43
CHA-16	CHA-16-3	0	Surface	Mn coating	3		Shark's tooth, valve of scalpellum	Globigerina ooze	Light yellow-brown; granular; slightly coherent. residue brown.	The dredge brought up some concretions covered with two or three sharks' teeth and valves of scalpellum also covered with a thin coating of manganese.	42-43
CHA-18	CHA-18-1	0	In sediment	Mn grain	Few			Red clay	Light red-brown; plastic; coherent when dry; breaking up readily in water; lustrous streak. residue dark brown.	Pumice with a few manganese grains.	44-45
CHA-19	CHA-19-1	0	In sediment	Mn grain	Few			Red clay	Light red-brown; coherent; breaking up in water; lustrous streak; plastic and unctuous when wet. residue red-brown.	Glassy volcanic particles with a few manganese grains.	44-45
CHA-26	CHA-26-1	0	In sediment	Mn grain	Several			Red clay	Red-brown when dry; very coherent; dried portions breaking up quickly in water; lustrous streak; plastic and unctuous when wet. residue dark brown.	Glassy volcanic fragments with some altered to palagonite and manganese grains.	46-47
CHA-28	CHA-28-1	0	In sediment	Mn grain	01. Feb			Red clay	Red-grey when dry, unctuous, homogeneous, plastic, lustrous streak. residue dark red.	Minute pieces of pumice and one or two manganese grains.	46-47
CHA-29	CHA-29-1	0	In sediment	Mn grain	Several	0.1 cm		Red clay	Red-grey when dry, unctuous, plastic, homogeneous, lustrous streak. residue dark red.	Palagonite with volcanic glass and manganese grains. Through fine sieves a few pellets of manganese one millimetre in diameter were obtained.	46-47
CHA-38	CHA-38-1	0	In sediment	Mn grain	01. Feb			Globigerina ooze	Brown when wet; dirty white when dry; granular; slightly coherent. residue red.	Manganese grains. one or two grains of manganese were observed.	50-51
CHA-39	CHA-39-1	0	In sediment	Mn grain	Several			Red clay	Grey when dry, coherent earthy sublustrous streak. residue red.	Manganese grains.	50-51
CHA-40	CHA-40-1	0	In sediment	Mn grain	Several			Globigerina ooze	Grey when dry; with a pink tinge; slightly coherent; gritty. residue dark brown.	Glassy volcanic particles; coloured altered particles with a few manganese grains.	50-51
CHA-46	CHA-46-1	0	Surface	Mn coating	Several		Pebble	Blue mud	Blue-grey when dry; coherent earthy with gritty particles. residue drak grey.	With no manganese grains. traces of manganese are found on some of the pebbles.	52-53
CHA-61	CHA-61-1	0	Surface	Mn crust			Concretion	Red clay	Coherent earthy containing gritty particles. residue red.	With no manganese grains. trawl brought up no deposit but some concretions covered with manganese.	54-55
CHA-63	CHA-63-1	0	Surface	Mn coating			Globigerina	Globigerina ooze	Light brown; slightly coherent; residue brown.	Some of the globigerinidae have grains of manganese adhering to their surfaces.	56-57
CHA-64	CHA-64-1	0	Surface	Mn pellet	Several			Globigerina ooze	Light brown; slightly coherent, homogenuoous. residue brown.	With fragments of pumice but no manganese grains. dredge contained 50 kilogrammes of deposit, in which were some pellets of manganese.	56-57
CHA-65	CHA-65-1	0	In sediment	Mn grain	Several			Red clay	Light brown; slightly coherent homogenonus; sublustrous streak. residue brown.	Manganese grains.	56-57
CHA-70	CHA-70-1	0	In sediment	Mn grain	Several			Globigerina ooze	Dirty white; pulverulent granular; chalky. residue brown.	Manganese grains. in the washing of the trawl there were concretions of the ooze with black spots.	56-57
CHA-71	CHA-71-1	0	Surface	Mn coating	Several	3.0-4.0 cm	Ooze agregate	Globigerina ooze	Dirty white; pulverulent granular; chalky. residue brown.	Presence of manganese. In the trawl there were several aggregations of the ooze from 3 to 4 cm in diameter perforated by worms and coated with a deposit of manganese	56-57
CHA-71	CHA-71-2	0	Surface	Mn coating	Several	7.0 cm	Rock; volcanic	Globigerina ooze	Dirty white; pulverulent granular; chalky. residue brown.	In the trawl there was a fragment of compact volcanic rock more or less rounded and about 7 cm. in longest diameter; this fragment has a slight deposit of manganese over the whole surface.	56-57
CHA-85	CHA-85-1	0	Surface	Mn coating	Several		Coral	Volcanic mud	With white spots; slightly coherent; earthy. residue brown-black.	Pumice; fragments of volcanic rock; palagonite; manganese grains. There were several large fragments of a gorgonoid coral coated with manganese.	60-61
CHA-85	CHA-85-2	0	Surface	Mn coating	Several	1.0 cm	Fragment; rock; volcanic	Volcanic mud	With white spots; slightly coherent; earthy. residue brown-black.	There were in addition some fragments of volcanic rocks about 1 cm. in diameter also coated with manganese.	60-61
CHA-86	CHA-86-1	0	In sediment	Mn grain	Several			Globigerina ooze	With yellow tinge; slightly coherent; chalky. residue red.	Volcanic glass and manganese grains.	60-61
CHA-87	CHA-87-1	0	In sediment	Mn grain	Several			Pteropod ooze	Light brown with pink tinge; very slightly coherent; granular. residue red.	Manganese grains.	60-61
CHA-87	CHA-87-2	0	Surface	Mn coating	1		Coral	Pteropod ooze	Light brown with pink tinge; very slightly coherent; granular. residue red.	A piece of a gorgonoid coral covered with manganese came up in the sounding tube.	60-61
CHA-88	CHA-88-1	0	In sediment	Mn grain	Several			Globigerina ooze	White with a rose or yellow tinge; slightly coherent; chalky. residue red.	A few manganese grains. the manganese in the last three sounding shows that it must be abundant over a large area.	60-61
CHA-95	CHA-95-1	0	In sediment	Mn grain	Several			Globigerina ooze	With rose tint; slightly coherent; chalky. residue brown.	With manganese grains.	64-65
CHA-101	CHA-101-1	0	In sediment	Mn grain	Many			Blue mud	Blue-grey; coherent unctuous; lustrous streak. residue blue-black.	With a good many small manganese grains.	64-65
CHA-104	CHA-104-1	0	In sediment	Mn grain	Few			Globigerina ooze	Grey; finely granular; slightly coherent. residue brown-black.	A few manganese grains.	64-65
CHA-105	CHA-105-1	0	In sediment	Mn grain	Few			Globigerina ooze	Grey; finely granular; slightly coherent. residue brown-black.	A few manganese grains.	64-65
CHA-106	CHA-106-1	0	In sediment	Mn grain	Several			Globigerina ooze	Grey; finely granular; pulverulent. residue brown-black.	Fragments of pumice and manganese grains.	64-65
CHA-130	CHA-130-1	0	In sediment	Mn grain	Few			Globigerina ooze	Greyish red when dry; finely granular; coherent. residue reddish.	A few manganese grains.	70-71
CHA-131	CHA-131-1	0	Surface	Mn coating			Earbone	Globigerina ooze	Yellow-brown, drying into coherent masses. residue reddish.	No manganese grains. the trawl brought up the earbone of a ziphius, having a few a very slight coating of manganese.	70-71
CHA-138	CHA-138-1	0	In sediment	Mn grain	Several			Red clay	Red-grey, drying into marly masses; finely granular; slightly coherent and earthy; sublustrous streak. residue red-brown.	Manganese grains.	74-75
CHA-143	CHA-143-1	0	In sediment	Mn grain	Several			Globigerina ooze	Dirty-white; slightly coherent and granular. residue yellow-green.	Manganese grains.	76-77
CHA-143	CHA-143-2	0	Surface	Mn coating	Several	1.0-4.0 cm	Concretion; phosphatic	Globigerina ooze	Dirty-white; slightly coherent and granular. residue yellow-green.	Manganese grains. there were in the dredge many small and irregular, phosphate concretions 1 to 4 centimetres in diameter coated with manganese and containing glauconite and foraminifera.	76-77
CHA-144	CHA-144-1	0	In sediment	Mn grain	Several			Globigerina ooze	White; granular, slightly coherent when dry. residue yellow-grey.	Fragments of volcanic glass and manganese grains.	76-77
CHA-147	CHA-147-1	0	Surface	Mn coating			Cemented lapilli	Diatom ooze	Grey; very fine and very slightly coherent; small grains recognisable to the touch. residue brown-black with lighter portions white.	No manganese grains. there were fragments covered with and cemented by manganese; these consist of lapilli brown in colour and much decomposed.	78-79
CHA-159	CHA-159-1	0	In sediment	Mn grain	Several			Globigerina ooze	Grey with red tinge; granular and slightly coherent. residue brown.	Pumice; red glassy volcanic fragments and manganese grains.	80-81
CHA-160	CHA-160-1	0	In sediment	Mn grain	Several			Red clay	When wet chocolate coloured and reddish when dry; coherent and breaking up with difficulty in water. residue reddish.	Pumice with fragments of volcanic glass; magnetic spherules; manganese grains.	82-83
CHA-160	CHA-160-2	0	Surface	Mn nodule	Many		Core; basalt black	Red clay	When wet chocolate coloured and reddish when dry; coherent and breaking up with difficulty in water. residue reddish.	Large quantity of red or chocolate clay with many manganese nodules. Their cores are either fragments of feldspathic basalt black and opaque or basalt-glass coated with a reddish or yellowish zone of decomposition.	82-83
CHA-160	CHA-160-3	0	Surface	Mn nodule	Many		Core; palagonite reddish or yellow	Red clay	When wet chocolate coloured and reddish when dry; coherent and breaking up with difficulty in water. residue reddish.	Large quantity of red or chocolate clay with many manganese nodules. Their cores are either fragments of feldspathic basalt black and opaque or basalt-glass coated with a reddish or yellowish zone of decomposition.	82-83
CHA-165	CHA-165-1	0	In sediment	Mn grain	Several			Red clay	Plastic and homogeneous; drying into hard lumps; lustrous streak; breaking up with difficulty in water. residue red-brown.	Volcanic fragments; pumice and manganese grains.	84-85
CHA-166C	CHA-166C-1	0	In sediment	Mn grain	Several			Globigerina ooze	Dirty white; granular; very slightly coherent and soiling the fingers. residue dirty white.	Manganese grains.	84-85
CHA-171A	CHA-171A-1	0	In sediment	Mn grain	Several			Red clay	Plastic when wet; light brown when dry; earthy fracture, breaking up with difficulty in water, sublustrous streak.	Fragments of basaltic rocks and manganese grains.	86-87
CHA-175	CHA-175-1	0	In sediment	Mn grain	Several			Globigerina ooze	With much clayey matter; red when wet and red-brown when dry; coherent and earthy. residue chocolate coloured.	Volcanic particles with lapilli of basaltic rocks; manganese grains	88-89
CHA-175	CHA-175-2	0	Surface	Fe-Mn crust	Several	6.0-8.0 cm	Rock; pumice	Globigerina ooze	With much clayey matter; red when wet and red-brown when dry; coherent and earthy. residue chocolate coloured.	The pumice stones recovered by the trawl are all more or less rounded and vary much in size the largest being 6 to 8 cm. in diameter. they are all covered with a layer of hydroxides of iron and manganese which penetrates them more or less deeply.	88-89
CHA-176	CHA-176-1	0	In sediment	Mn grain	Several			Globigerina ooze	Reddish when wet and red-brown when dry; slightly coherent; breaking up in water. residue chocolate coloured.	Volcanic glass transformed into palagonite and manganese grains.	90-91
CHA-176	CHA-176-2	0	In sediment	Mn coating	Several		Foraminifera	Globigerina ooze	Reddish when wet and red-brown when dry; slightly coherent; breaking up in water. residue chocolate coloured.	Some foraminifera have a deposit of manganese on their surfaces.	90-91
CHA-178	CHA-178-1	0	In sediment	Mn grain	Several			Red clay	Chocolate coloured when wet and yellow-brown when dry; coherent; breaking up in water; fusing easily before the blowpipe; sublustrous streak.	Pumice and small particles of manganese.	90-91
CHA-181	CHA-181-1	0	In sediment	Mn grain	Several			Red clay	Light red and grey when dry; coherent; fine grained; lustrous streak; plastic; unctuous and brown when wet. residue brown.	Glassy volcanic particles and manganese grains.	90-91
CHA-184	CHA-184-1	0	Surface	Mn coating	Several		Stone; pumice	Globigerina ooze	Yellowish when dry; coherent; breaking up readily in water. residue reddish.	Fragments of pumice without manganese grains. in the trawl some pumice stones have with a thin coating of manganese.	92-93
CHA-189	CHA-189-1	0	Surface	Mn coating			Concretion; calcareous	Green mud	Pale green-grey; gritty; coherent when dry; containing shell fragments and calcareous concretions. residue green-grey.	No manganese grains. in this deposit there were calcareous nodules in a few cases dark in colour, due to the impregnation with black oxide of manganese.	94-95
CHA-195	CHA-195-1	0	Surface	Mn nodule	Several	1.2-10.0 cm	Core; pumice	Blue mud	Blue-grey: coherent, homogeneous and fine grained; plastic when wet. residue blue-grey.	No manganese grains. in the dredge there were a number of pumice nodules varying from 1/2 to 4 inches (12 mm. to 10 cm.) in diameter and slightly impregnated with manganese.	96-97
CHA-196	CHA-196-1	0	Surface	Mn coating	Several		Conglomerate	Hard ground	Hard conglomerate; yellow-white. residue yellow- white.	Pumice but no manganese grains. in the trawl there were fragments of a hard irregular, honeycombed conglomerate of a yellow-white colour; coated in parts with manganese and overgrown with serpula polyzoa, and sponges.	98-99
CHA-196	CHA-196-2	0	Surface	Mn coating	1		Pebble; decomposed volcanic	Hard ground	Hard conglomerate; yellow-white. residue yellow- white.	There was also an angular pebble of augite-andesite, much decomposed and coated with manganese.	98-99
CHA-215	CHA-215-1	0	Surface	Mn coating	Several		Fragment; pumice	Red clay	Red-yellow when dry and dark-brown when wet; coherent; lustrous streak; homogeneous and plastic.	Pumice but no manganese grains. in the trawl the pumice fragments are slightly impregnated in some cases with manganese.	104-105
CHA-216A	CHA-216A-1	0	Surface	Mn coating	Several		Stone; pumice, altered volcanic glass	Globigerina ooze	Light red-grey; slightly coherent and fine grained; plastic and red coloured when wet. residue dark red-brown.	Pumice and altered volcanic glass but no manganese grains. a considerable number of pumice stones came up in the trawl varying from the size of a marble to that of a good-sized egg. the surface of most of these was impregnated with manganese.	104-105
CHA-218	CHA-218-1	0	In sediment	Mn grain	Few			Globigerina ooze	Pale blue-grey with reddish tinge; homogeneous and coherent, somewhat plastic when wet. residue dark blue-grey.	Manganese grains in some instances.	106-107
CHA-218	CHA-218-2	0	Surface	Mn coating	Several		Rock; pumice	Globigerina ooze	Pale blue-grey with reddish tinge; homogeneous and coherent, somewhat plastic when wet. residue dark blue-grey.	Manganese grains in some instances. in the bag of the trawl there are large pieces of pumice and other stones slightly impregnated in some cases with manganese.	106-107
CHA-220	CHA-220-1	0	Surface	Mn coating	Several	1.2-2.5 cm	Stone; pumice	Globigerina ooze	Pale yellow-white; granular; sightly coherent. residue red-brown.	Very small lapilli od andesitic rock but no manganese grains. in the trawl were several rounded pieces of pumice, about 1/2 to 1 inch 12 to 25 mm.) in diameter which were slightly impregnated with manganese in some cases.	106-107
CHA-222	CHA-222-1	0	In sediment	Mn grain	Several			Red clay	Light brown with red tinge; coherent; fine grained presenting no macroscopic elements. residue chocolate coloured.	Glassy volcanic fragments and manganese grains.	106-107
CHA-226	CHA-226-1	0	Surface	Fe-Mn coating	Several		Stone; pumice	Red clay	Deep chocolate coloured when wet; greasy to the touch; yellowish when dry, pulverulent and breaking up with difficulty in water; lustrous streak. residue chocolate coloured.	No manganese grains. the trawl brought up a quantity of pumice. the pumice stones are all more or less decomposed and coloured by the hydroxides vitreous of iron and manganese.	108-109
CHA-227	CHA-227-1	0	Surface	Mn layer				Red clay	Chocolate coloured when wet; plastic and fine grained; no macroscopic elements.	No manganese grains. the deposit contains much manganese. two or three pieces of pumice about 0.5 cm. in diameter were obtained. the minerals are crystals or fragments covered with a coating of scoriaceous glass.	108-109
CHA-228	CHA-228-1	0	In sediment	Mn grain	Many			Red clay	Red an chocolate coloured when wet; coherent; fine grained; presenting no macroscopic elements.	Palagonite and a lot of manganese grains. there is a considerable quantity of manganese in the form of little black grains. there are also many pellets of pumice from 1 to 5 mm. in diameter.	108-109
CHA-229	CHA-229-1	0	In sediment	Mn grain	Many			Red clay	Red and chocolate coloured and plastic when wet; coherent but somewhat friable; fine grained; presenting no macroscopic elements.	Abundant manganese grains. the microscope reveals that particles of pumice and grains of manganese are abundant.	108-109
CHA-230	CHA-230-1	0	Surface	Mn coating	Several	2.5 cm	Stone; pumice	Red clay	Chocolate colored and plastic when wet; coherent but somewhat friable; fine grained; presenting no macroscopic elements.	No manganese grains. in the trawl were about a dozen pieces of pumice stone averaging an inch (25 mm.) in diameter and impregnated with manganese	110-111
CHA-232	CHA-232-1	0	Surface	Mn coating	Several		Particle; volcanic glass and pumice	Green mud	Green-grey; earthy and slightly coherent; breaking up readily in water; containing shells. residue dark green with brown tinge.	Fragments of volcanic glass and pumice but no manganese grains. some of the mineral particles are coated with manganese.	110-111
CHA-236A	CHA-236A-1	0	Surface	Mn coating		Large	Piece; hardened sediment	Green mud	Slightly coherent; breaking up in water. residue dark green.	No manganese grains. in the trawl there were some very large hardened pieces of the bottom. these were perforated by worms and in some cases slightly coated with manganese.	112-113
CHA-239	CHA-239-1	0	In sediment	Mn grain	Many			Red clay	Light red-grey when dry and somewhat plastic and red coloured when wet; coherent and line grained; breaking up in water; presenting no macroscopic elements.	With manganese grains. a considerable quantity of pumice is present and among the washings were numerous black particles of manganese.	112-113
CHA-240	CHA-240-1	0	Surface	Mn coating	Several	0.5 cm	Fragment; pumice	Red clay	Light red-grey when dry and dark red when wet; coherent; fine grained; breaking up in water.	Pumice scoriae and palagonite but no manganese grains. In the clay were worm-tubes much impregnated with manganese, also several blackened pieces of pumice about the size of a pea.	112-113
CHA-241	CHA-241-1	0	In sediment	Mn grain	Many			Red clay	The upper layers is red dish and the deeper layers greyish and more compact; when dry yellowish grey and slightly coherent. residue chocolate coloured.	Numerous fragments of pumice and manganese grains. the trawl brought up many hundreds of pumice stones and many animals.	112-113
CHA-242	CHA-242-1	0	Surface	Mn nodule	2	Small	Core; altered pumice	Red clay	Red-brown; unctuous to the touch; slightly coherent and fine grained; lustrous streak.	No manganese grains. Two small manganese nodules in the water-bottle. The nodules had a nucleus of altered pumice and a coating of manganese an eighth of an inch (3 mm.) in thickness.	112-113
CHA-244	CHA-244-1	0	In sediment	Mn grain	Several			Red clay	Reddish or light brown when dry; coherent; fine grained; soft to the touch.	Cosmic spherules and manganese grains.	114-115
CHA-244	CHA-244-2	0	Surface	Mn crust	Several		Stone; pumice	Red clay	Reddish or light brown when dry; coherent; fine grained; soft to the touch.	The trawl brought up a large quantity of the clay and a number or animals and also many pumice stones mostly surrounded with concentric deposits of manganese.	114-115
CHA-245	CHA-245-1	0	In sediment	Mn grain	Several			Red clay	Light red-grey when dry; coherent and very fine grained; breaking up readily in water; presenting no macroscopic elements; chocolate coloured and plastic when wet.	Pumice and manganese grains.	114-115
CHA-245	CHA-245-2	0	Surface	Mn nodule	1	0.5 cm		Red clay	Light red-grey when dry; coherent and very fine grained; breaking up readily in water; presenting no macroscopic elements; chocolate coloured and plastic when wet.	A piece of black manganese about the size of a bean and many smaller pieces, were observed.	114-115
CHA-246	CHA-246-1	0	In sediment	Mn grain	Several			Globigerina ooze	Brownish when wet and grey when wet; plastic and slightly coherent. residue brownish.	Volcanic glass with black and reddish grains of manganese. the trawl brought up much ooze, many pumice stones and a large number of animals.	114-115
CHA-247	CHA-247-1	0	In sediment	Mn grain	Several			Red clay	Upper layer dark red with lower layer much lighter; fine grained; presenting no macroscopic elements; coherent; breaking up in water. residue red-brown.	Manganese grains with glassy volcanic fragments and palagonite.	114-115
CHA-248	CHA-248-1	0	In sediment	Mn grain	Several			Red clay	Brown-red and yellowish brown when dry, unctuous when wet; coherent; sublustrous streak.	Fragments of pumice and manganese grains.	114-115
CHA-248	CHA-248-2	0	Surface	Mn nodule	Many			Red clay	Brown-red and yellowish brown when dry, unctuous when wet; coherent; sublustrous streak.	The trawl came up torn but contained much clay and many manganese nodules with pumice stones and several animals.	114-115
CHA-249	CHA-249-1	0	In sediment	Mn grain	Several			Red clay	Light red-grey and dark red when wet; coherent; fine grained.	With manganese grains.	114-115
CHA-251	CHA-251-1	0	In sediment	Mn grain	Several			Red clay	Light red-grey and light red-brown unctuous and plastic when wt; coherent; fine grained.	Volcanic glass with palagonite and manganese grains.	114-115
CHA-252	CHA-252-1	0	Surface	Mn nodule	Many		Core; pumice	Red clay	Reddish or light brown and grey-brown when dry; plastic and fine grained; breaking up with difficulty in water.	The trawl was much torn when it came up but contained a quantity of manganese nodules. The nuclei of the nodules consist of pumice or volcanic glass and carcharedon teeth.	116-117
CHA-252	CHA-252-2	0	Surface	Mn nodule	Several		Core; shark's tooth	Red clay	Reddish or light brown and grey-brown when dry; plastic and fine grained; breaking up with difficulty in water.	The trawl was much torn when it came up but contained a quantity of manganese nodules. The nuclei of the nodules consist of pumice or volcanic glass and carcharedon teeth.	116-117
CHA-253	CHA-253-1	0	In sediment	Mn grain	Several			Red clay	Red-brown when wet and yellowish brown when dry; unctuous and coherent; breaking up with difficulty in water; lustrous streak.	Pumice and manganese grains	116-117
CHA-253	CHA-253-2	0	Surface	Mn nodule	Several			Red clay	Red-brown when wet and yellowish brown when dry; unctuous and coherent; breaking up with difficulty in water; lustrous streak.	There were some clay and manganese nodules in both the dredge and tow-nets.	116-117
CHA-254	CHA-254-1	0	Surface	Mn nodule	1	3.8 cm		Red clay	Light red-grey when dry and light red-brown when wet fine grained and coherent; plastic and unctuous; lustrous streak; breaking up with great difficulty in water.	Broken down pumice and palagonite but no manganese grains. A twin nodule of manganese about 1 inches (38 mm.) in largest diameter. An upper and lower side was covered with a reticulated rhizopod.	116-117
CHA-255	CHA-255-1	0	In sediment	Mn grain	Many			Red clay	Light red-grey when dry and light red coloured when wet coherent and fine grained; unctuous and plastic.	Volcanic glass with pumice and manganese grains. the washings of the trawl consists largely of broken down pumice among which are many manganese grains.	116-117
CHA-256	CHA-256-1	0	In sediment	Mn grain	Several			Red clay	Light red-grey and dark red-brown when wet; coherent and fine grained; lustrous streak; breaking up readily in water.	Volcanic glass with palagonite and manganese grains.	116-117
CHA-256	CHA-256-2	0	Surface	Mn nodule	Several			Red clay	Light red-grey and dark red-brown when wet; coherent and fine grained; lustrous streak; breaking up readily in water.	The greater part of the dredge was sifted and all passed through the finest sieves with the exception of some manganese nodules and sharks' teeth as well as one piece of pumice about the size of a pigeon's egg.	116-117
CHA-257	CHA-257-1	0	In sediment	Mn grain + Mn fragments	Several			Red clay	Light red colour.	Volcanic glass with palagonite and manganese grains. a great proportion of the bottom was pumice in a very fine state of division and there were pieces of black manganese and radiolarian remains.	116-117
CHA-258	CHA-258-1	0	In sediment	Mn grain	Several			Red clay	Brown-grey; coherent and fine grained; breaking up with difficulty in water; red-brown and plastic when wet.	Volcanic glass particles and manganese grains. about a pint (over half a litre) of the clay of a uniform character.	116-117
CHA-264	CHA-264-1	0	Surface	Mn nodule	8			Red clay	Light red-grey; coherent and fine grained; breaking up with difficulty in water; red-brown when wet.	Palagonite was abundant. In the bag of the trawl were seven or eight small manganese nodules. The manganese nodules were not of the usual rounded character but were very irregular.	118-119
CHA-264	CHA-264-2	0	Surface	Mn coating	Several		Hard material	Red clay	Light red-grey; coherent and fine grained; breaking up with difficulty in water; red-brown when wet.	In the bag of the trawl some pieces of the hardened bottom had a slight coating of manganese. In addition were small shark's teeth and cephalopod beaks.	118-119
CHA-265	CHA-265-1	0	Surface	Mn nodule	1			Radiolarian ooze	Red-brown or chocolate coloured; homogeneous and soft to the touch; reddish when dry.	The dredge came up filled with dark coloured ooze with a few small pieces of pumice and one manganese nodule.	120-121
CHA-267	CHA-267-1	0	In sediment	Mn grain	Many			Radiolarian ooze	Light yellow-grey; fine and coherent with no macroscopic element.	Manganese grains with magnetite and volcanic particles. Many manganese grains were observed.	120-121
CHA-267	CHA-267-2	0	Surface	Mn nodule	Fragments	1.0 cm		Radiolarian ooze	Light yellow-grey; fine and coherent with no macroscopic element.	Manganese grains with magnetite and volcanic particles. Many manganese grains were observed with a broken manganese nodule larger than a good sized marble.	120-121
CHA-268	CHA-268-1	0	Surface	Mn nodule	Several	0.25 cm		Radiolarian ooze	Red-brown when wet; fine grained and red-grey when dry.	One spherical granulated manganese grain (nodule?), about the size of a pea was noticed.	120-121
CHA-269	CHA-269-1	0	In sediment	Mn grain	Several			Radiolarian ooze	Brown when wet; coherent and light yellow-grey when dry.	Manganese grains with glassy particles and palagonite. The upper part of the tube were some yellow coloured patches indicating a surface layer about an inch of thickness. The colour appears to be due to the smaller number of manganese grains.	120-121
CHA-270	CHA-270-1	0	In sediment	Mn grain	Few			Globigerina ooze	White with light yellow tinge; chalky and slightly coherent.	Few volcanic particles and one or two manganese grains. the white lower layer is a nearly pure globigerina ooze, while the upper brown layer seems to be composed of equal parts of siliceous and calcareous organisms.	120-121
CHA-272	CHA-272-1	0	Surface	Mn coating			Rock; palagonite	Radiolarian ooze	Brown-grey; slightly coherent when dry; dark-brown when wet.	In the trawl there were a rounded piece of pumice slightly impregnated with manganese	120-121
CHA-272	CHA-272-2	0	Surface	Mn nodule	3		Core; pumice	Radiolarian ooze	Brown-grey; slightly coherent when dry; dark-brown when wet.	In the trawl there were two or three irregular manganese nodules with pumice nuclei.	120-121
CHA-273	CHA-273-1	0	In sediment	Mn grain	Several	Large		Radiolarian ooze	Dark-brown when wet; slightly coherent and fine grained; brown-grey when dry.	Rounded manganese grains and volcanic particles. There are present a great number of manganese grains some of them of considerable size (manganese nodules?).	120-121
CHA-274	CHA-274-1	0	In sediment	Mn grain	Several			Radiolarian ooze	Red-brown or chocolate coloured; fine grained and onctuous; yellow-red when dry.	Manganese grains with magnetic spherules and pumice.	122-123
CHA-274	CHA-274-2	0	Surface	Mn nodule	Many		Core; volcanic glass and palagonite	Radiolarian ooze	Red-brown or chocolate coloured; fine grained and onctuous; yellow-red when dry.	The trawl and attached nets contained a quantity of manganese nodules; some earbones of cetaceans; shark's teeth and pumice fragments. the nucleus of one nodule is composed of amorphous clayey matter bordered with zeolitic crystals.	122-123
CHA-276	CHA-276-1	0	In sediment	Mn grain	Several			Red clay	Brown when dry; slightly coherent and pulverising easily into a granular powder; earthy; sublustrous streak; residue dark brown or chocolate coloured.	Philippsite spherules with volcanic glass fragments with manganese grains and magnetic spherules.	122-123
CHA-276	CHA-276-2	0	Surface	Mn nodule	Many	1.0-2.0 cm	Core; volcanic	Red clay	Brown when dry; slightly coherent and pulverising easily into a granular powder; earthy; sublustrous streak; residue dark brown or chocolate coloured.	The trawl brought up about half a ton of manganese nodules. The nuclei of the nodules consist of fragments or basaltic rocks or lapilli. in all cases these nuclei are very much altered. the nodules were mostly from 1 to 2 cm. in diameter.	122-123
CHA-276	CHA-276-3	0	Surface	Mn coating	Several		Shark's tooth	Red clay	Brown when dry; slightly coherent and pulverising easily into a granular powder; earthy; sublustrous streak; residue dark brown or chocolate coloured.	The trawl brought up some small pieces of pumice along with some angular basaltic pebbles and many sharks' teeth (one very large); some of those are thickly and others slightly coated with manganese.	122-123
CHA-278B	CHA-278B-1	0	In sediment	Mn grain	Several			Coral sand	Grey; made up of white and black (volcanic) particles.	Manganese grains and volcanic fragments. the bulk of the deposit is made up of fragments of coral.	122-123
CHA-280	CHA-280-1	0	In sediment	Mn grain	Several			Globigerina ooze	Yellow-brown when wet; slightly coherent; grey with red tinge when dry.	Fragments of volcanic rocks with manganese grains.	124-125
CHA-280	CHA-280-2	0	In sediment	Mn coating	Several		Particle; volcanic	Globigerina ooze	Yellow-brown when wet; slightly coherent; grey with red tinge when dry.	Fragments of volcanic rocks with manganese grains and all the mineral particles are covered with a thin coat of manganese and iron.	124-125
CHA-280	CHA-280-3	0	Surface	Mn nodule	3		Core; volcanic ash and clay	Globigerina ooze	Yellow-brown when wet; slightly coherent; grey with red tinge when dry.	There were also 2 or 3 manganese nodules. These nodules seem to be formed of portions of the bottom and are perforated in all directions by worm tubes. one of the nodules had a nucleus composed of clay and of volcanic ashes.	124-125
CHA-281	CHA-281-1	0	Surface	Mn nodule	Many		Core; volcanic tufa	Red clay	Red-brown when wet; gritty and slightly coherent; breaking up in water to fine powder; red when dry.	Palagonite without manganese grains. Immense number of manganese nodules and sharks' teeth. Some measure 18x12x8 inches. All nodules have a slight coating of manganese covering a core of volcanic tufa. They were overgrown by rhizopods.	124-125
CHA-281	CHA-281-2	0	Surface	Mn crust	Several	4.6x3.0x7.5 cm	Rock; pumice	Red clay	Red-brown when wet; gritty and slightly coherent; breaking up in water to fine powder; red when dry.	Some of the manganese nodules measure 18 x 12x 8 inches (4.6 x 3.0 x 7.5 cm.)	124-125
CHA-282	CHA-282-1	0	In sediment	Mn coating	Several		Grains; palagonite	Red clay	Red-brown when wet; gritty and slightly coherent; breaking up in water to fine powder; red when dry.	Grains of palagonite and other minerals coated with iron and manganese.	124-125
CHA-282	CHA-282-2	0	In sediment	Mn fragment	Many			Red clay	Red-brown when wet; gritty and slightly coherent; breaking up in water to fine powder; red when dry.	There are many fragments of manganese and several small pieces of pumice in the tube with small penetration.	124-125
CHA-283	CHA-283-1	0	In sediment	Mn grain	Many			Globigerina ooze	Brown when wet; slightly coherent and chalky; grey when dry.	Manganese grains and glassy volcanic particles. there were a good many manganese grains and yellow and red crystals.	126-127
CHA-283	CHA-283-2	80	Buried	Mn pellet	Several			Globigerina ooze	Brown when wet; slightly coherent and chalky; grey when dry.	At the bottom of the tube (80 cm) there was a dark chocolate coloured clay containing manganese in rounded pellets.	126-127
CHA-285	CHA-285-1	0	Surface	Mn coating	Many			Red clay	Dark brown when wet; plastic and coherent; dark red-brown when dry.	The trawl brought numerous shark's teeth from which the bony material has been completely removed.	126-127
CHA-285	CHA-285-2	0	Surface	Mn nodule	Many		Core; volcanic	Red clay	Dark brown when wet; plastic and coherent; dark red-brown when dry.	Barrel full of manganese nodules. Some of their cores are altered basaltic fragments and others are volcanic glass or augite-andesite or hornblende-andesite. All the glassy fragments are cemented to the manganese coating by zeolites crystallised in situ	126-127
CHA-286	CHA-286-1	0	In sediment	Mn grain	Several			Red clay	Red-brown when wet; plastic and slightly coherent; reddish yellow when dry.	Manganese grains with a few volcanic particles and magnetic spherules. Two layers of sediment in the tube with much less manganese in the lower layer.	126-127
CHA-286	CHA-286-2	0	Surface	Mn nodule	Many			Red clay	Red-brown when wet; plastic and slightly coherent; reddish yellow when dry.	The trawl brought up large numbers of manganese nodules and shark's teeth.	126-127
CHA-286	CHA-286-3	0	In sediment	Mn staining	Few		Concretion; clay with worm tubes	Red clay	Red-brown when wet; plastic and slightly coherent; reddish yellow when dry.	There were also some clayey concretions of the bottom, perforated by worm tubes, lined with manganese.	126-127
CHA-287	CHA-287-1	0	Surface	Mn nodule	Many	0.5-1.0 cm	Core; palagonite	Red clay	Chocolate brown; plastic and coherent; lustrous streak.	Small concretions of manganese with volcanic glass and magnetic spherules. An immense quantity of manganese nodules some of them measuring from 0.5 to 1.0 cm in diameter; in one or two instances these nodules are joined together.	126-127
CHA-288	CHA-288-1	0	In sediment	Mn grain	Several			Red clay	Dark red-brown when wet; plastic and very coherent; brown-grey when dry.	Manganese grains and glassy volcanic particles.	128-129
CHA-288	CHA-288-2	0	Surface	Mn nodule	Few	Small		Red clay	Dark red-brown when wet; plastic and very coherent; brown-grey when dry.	A few small manganese nodules overgrown with hyperammina vagans were observed.	128-129
CHA-289	CHA-289-1	0	Surface	Mn nodule	Many			Red clay	Red-brown when wet; plastic and coherent; fine grained; pale brown-grey when dry.	No manganese grains. the trawl brought up a great quantity of manganese nodules but no deposit. a great many manganese grains were noticed.	128-129
CHA-290	CHA-290-1	0	In sediment	Mn grain	Few			Red clay	Red-brown when wet; plastic and coherent; fine grained; pale brown-grey when dry.	Some manganese grains.	128-129
CHA-291	CHA-291-1	0	In sediment	Mn grain	Many			Red clay	Red-brown when wet; plastic and coherent; fine grained; pale brown-grey when dry.	A good many manganese grains.	128-129
CHA-291	CHA-291-2	0	Surface	Mn nodule	1	1.0 cm		Red clay	Red-brown when wet; plastic and coherent; fine grained; pale brown-grey when dry.	In the bag of the trawl there was only one manganese nodule the size of a marble to which was attached an egg capsule.	128-129
CHA-292	CHA-292-1	0	In sediment	Mn grain	Several			Globigerina ooze	Light-brown grey; slightly coherent;	Manganese grains with altered volcanic particles. coccoliths are comparatively abundant. the volcanic character is dominant for the hard particles.	128-129
CHA-293	CHA-293-1	0	In sediment	Mn grain	Several			Globigerina ooze	Chocolate coloured when wet; plastic and coherent; brown when dry.	Manganese grains with splinters of volcanic glass.	128-129
CHA-293	CHA-293-2	0	Surface	Mn nodule	6	2.0 cm	No core	Globigerina ooze	Chocolate coloured when wet; plastic and coherent; brown when dry.	The trawl brought up a dozen manganese nodules and two shark's teeth. The largest of the nodules is about the size of a pigeon's egg. Several nodules have nuclei of palagonite and others appear to be made entirely of manganese.	128-129
CHA-293	CHA-293-3	0	Surface	Mn nodule	6		Core; palagonite	Globigerina ooze	Chocolate coloured when wet; plastic and coherent; brown when dry.	Several nodules have nuclei of palagonite and others appear to be made entirely of manganese.	128-129
CHA-293	CHA-293-4	0	Surface	Mn coating	2		Shark's tooth	Globigerina ooze	Chocolate coloured when wet; plastic and coherent; brown when dry.	The trawl brought up a dozen manganese nodules and two shark's teeth. The teeth and pebble are slightly coated with manganese.	128-129
CHA-294	CHA-294-1	0	In sediment	Mn pellet and particle	Several			Red clay	Rich chocolate colour when wet; plastic and coherent; homogeneous; chocolate coloured when dry.	Manganese grains with glassy volcanic particles. the great mass of the washings was composed of small pellets or particles of manganese along with crystals of phillipsite and fragments of palagonite.	128-129
CHA-294	CHA-294-2	0	Surface	Mn nodule	1	0.25 cm		Red clay	Rich chocolate colour when wet; plastic and coherent; homogeneous; chocolate coloured when dry.	One small nodule the size of a pea was noticed.	128-129
CHA-295	CHA-295-1	0	Surface	Mn fragment	Several			Globigerina ooze		Particles of volcanic glass but no manganese grains. The dredge ooze contained a good many small manganese particles.	130-131
CHA-296	CHA-296-1	40	In sediment	Mn layer				Globigerina ooze	Somewhat coherent; light brown-grey when dry.	Some manganese grains with many white glassy splinters and palagonite. Two layers in the tube. The lower layer has few organisms with abundant manganese.	130-131
CHA-296	CHA-296-2	40	Buried	Mn nodule	1			Globigerina ooze	Somewhat coherent; light brown-grey when dry.	A small nodule the size of a pea was observed.	130-131
CHA-297	CHA-297-1	0	In sediment	Mn grain				Globigerina ooze	Yellow-grey; slightly coherent.	Manganese grains with plagioclase and glassy volcanic particles.	130-131
CHA-297	CHA-297-2	0	Surface	Mn nodule	Many	0.25-7.0 cm	Core; palagonite decomposed	Globigerina ooze	Yellow-grey; slightly coherent.	Large quantity of rounded manganese nodules pea sized to an hen's egg. The nuclei of some of the larger nodules are yellow or dark green material (last stage of decomposition of palagonite). Lumps of the ooze show the beginning of the nodule formation.	130-131
CHA-298	CHA-298-1	0	Surface	Mn nodule	1	2.5 cm		Blue mud	Coherent with macroscopic elements; plastic when wet; light blue-grey when dry.	No manganese grains. In the tow-net there was a flat and round manganese nodule about one inch (25 mm) across.	130-131
CHA-298	CHA-298-2	0	Surface	Mn slab	1	3.0 cm	Core; pumice	Blue mud	Coherent with macroscopic elements; plastic when wet; light blue-grey when dry.	A second manganese nodule was a quarter inches thick (31 mm) with a nucleus of pumice.	130-131
CHA-299	CHA-299-1	0	Surface	Mn nodule	Several		Core; pumice or altered basalt	Blue mud	Red-brown and compact when wet; coherent and fine grained; plastic when wet; pale blue-grey when dry.	In the tube, the lower layer (1 inch-4 inches) is a blue-grey compact mud with pieces of pumice and several manganese grains. In the trawl over a quart of nodules. Some of the nodules are manganese throughout and others are have a pumice core.	132-133
CHA-299	CHA-299-2	0	Surface	Mn nodule	Several		No core	Blue mud	Red-brown and compact when wet; coherent and fine grained; plastic when wet; pale blue-grey when dry.	Some of these nodules are manganese throughout.	132-133
CHA-300	CHA-300-1	0	In sediment	Mn grain	Several			Globigerina ooze	Yellow-brown; slightly coherent and plastic; yellow-white when dry.	Manganese grains with small volcanic lapilli and palagonite.	132-133
CHA-300	CHA-300-2	0	Surface	Mn coating	Several		Pebble; basalt	Globigerina ooze	Yellow-brown; slightly coherent and plastic; yellow-white when dry.	A considerable quantity came up in the trawl amongst which several small basaltic pebbles having a slight coating of manganese.	132-133
CHA-302	CHA-302-1	0	Surface	Mn nodule	Several		Core; basalt or palagonite	Globigerina ooze	Yellow-red; slightly coherent and gritty; pale yellow-brown when dry.	Ooze with small pieces of manganese and pumice. In the trawl were a number of manganese nodules with cores of fragments of basalt with a vitreous base passing into palagonite. Nodules were overgrown with worm tubes and hyperammina vagans.	132-133
CHA-302	CHA-302-2	0	Surface	Mn coating	1		Rock; granite	Globigerina ooze	Yellow-red; slightly coherent and gritty; pale yellow-brown when dry.	A piece of granite was recovered with a slight coating of manganese.	132-133
CHA-330	CHA-330-1	0	In sediment	Mn grain	Several			Red clay	Grey-brown; coherent and homogeneous; lustrous streak.	Manganese with volcanic particles	140-141
CHA-330	CHA-330-2	0	Surface	Mn staining	1		Worm tube inside	Red clay	Grey-brown; coherent and homogeneous; lustrous streak.	One worm tube had a deposit of manganese in the inside.	140-141
CHA-335	CHA-335-1	0	In sediment	Mn grain	Several			Pteropod ooze	White with rose tinge; granular and pulverulent.	Manganese grains with pumice and glassy volcanic fragments.	142-143
CHA-335	CHA-335-2	0	Surface	Mn coating	Many		Mollusc's shell	Pteropod ooze	White with rose tinge; granular and pulverulent.	Many of the shells of the recovered pelagic molluscs are black and brown from a coating of manganese.	142-143
CHA-337	CHA-337-1	0	Surface	Mn coating	Several		Mollusc's shell	Pteropod ooze	White; black spots and shiny scales; granular.	No manganese grains. the tow-net brought pelagic molluscs some of them black or brown with a thin coating of manganese.	142-143
CHA-339	CHA-339-1	0	In sediment	Mn grain	Several			Pteropod ooze	White with a faint red tinge; granular and pulverulent.	Manganese grains.	144-145
CHA-339	CHA-339-2	0	Buried	Mn coating	Several		Pteropod's or heteropod's shell	Pteropod ooze	White with a faint red tinge; granular and pulverulent.	The tube brought pteropod and heteropod shells which were quite black or with a brown colour from a coating of manganese.	144-145
CHA-340	CHA-340-1	0	In sediment	Mn grain	Several			Pteropod ooze	White; granular and pulverulent.	Manganese grains.	144-145
CHA-341	CHA-341-1	0	In sediment	Mn grain	Several			Pteropod ooze	White; granular and pulverulent.	Manganese grains. small particles of manganese were found in the sounding tube. on the outside of the tube were found some black streaks which on examination were found to be due to peroxide of manganese (MnO2)	144-145
CHA-342	CHA-342-1	0	Surface	Mn grain	Several			Pteropod ooze	White; granular and pulverulent.	Manganese grains. the tube brought pteropods covered with a thin coating of peroxide of manganese (MnO2)	144-145
CHA-343	CHA-343-1	0	Surface	Mn coating	2		Fragment; coral	Globigerina ooze	White.	No manganese grains. the sounding tube brought up two pieces of coral coated with manganese.	144-145
CHA-344	CHA-344-1	0	Surface	Mn coating	Several		Fragment; rock, shell	Calcareous volcanic sand	Mottled brown black and white.	Palagonite with many glassy volcanic fragments but no manganese grains. Many of the fragments of rocks or shells or corals brought by the tow-net are quite black from a coating of manganese.	146-147
CHA-347	CHA-347-1	0	In sediment	Mn grain	Several			Globigerina ooze	Grey; granular and slightly coherent.	Manganese grains with spherules and hornblende.	146-147
CHA-347	CHA-347-2	0	In sediment	Mn coating	Several		Foraminifera	Globigerina ooze	Grey; granular and slightly coherent.	In the sounding tube some of the foraminifera in the deposit have their surfaces dotted with grains of manganese.	146-147
CHA-347	CHA-347-3	0	Surface	Mn coating	Few		Shell	Globigerina ooze	Grey; granular and slightly coherent.	A few shells are also coated with manganese.	146-147
CHA-353	CHA-353-1	0	In sediment	Mn grain	Many			Red clay	Plastic when wet; unctuous and homogeneous.	Manganese grains with volcanic glass. the colour of the deposit is due to the hydrate of iron. the bottom of the tube sounding (35 cm) is darker coloured with abundance of manganese grains and fishes' teeth.	146-147
CHA-354	CHA-354-1	0	In sediment	Mn grain	Several			Globigerina ooze	Light grey with rose tinge; granular and pulverulent.	Manganese grains with rounded fragments of quartz.	146-147