Citation:

0025-3227(77)90062-7

Name: (Table 1, page 345) Organism borrowing into manganese nodules from the Blake Plateau area
Published: 1977
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Eighty-seven manganese nodules, representing 6 different locations at depths ranging from 2400 to 7400 m, from the eastern edge of the Blake Plateau were studied. Most of the nodules contained secondary structural textures resulting from the apparent burrowing of marine microfauna. This biogenic activity produced modification of the original growth patterns. In many cases the burrowed zones served as favored sites for redeposition of iron-manganese material. Transmitted light and scanning electron microscope analysis revealed the presence of 3 types of organic activity: (1) agglutinated foraminiferal tests; (2) pre-bored clay particles acting as nuclei or later included during nodule growth; and (3) younger burrows that cross-cut all older structures. In many instances this cross-cutting action resulted in almost total eradication of areas of the original growth patterns. The final texture may be mistaken for a similar growth texture previously classified as mottled, but a more specific genetic term might be 'disrupted'.

Source:

Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT

Further details:

Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN

Project(s):

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

Coverage:

Median Latitude: 28.195000 * Median Longitude: -76.456389 * South-bound Latitude: 27.183333 * West-bound Longitude: -76.666667 * North-bound Latitude: 30.250000 * East-bound Longitude: -76.366667

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

Event(s):

EASTW-11066 * Latitude: 27.215000 * Longitude: -76.433333 * Elevation: -4520.0 m * Location: Atlantic Ocean * Campaign: * Basis: Eastward * Comment: Institute: Duke University

EASTW-11067 * Latitude: 27.183333 * Longitude: -76.450000 * Elevation: -4600.0 m * Location: Atlantic Ocean * Campaign: * Basis: Eastward * Comment: Institute: Duke University

EASTW-11068 * Latitude: 27.233333 * Longitude: -76.438333 * Elevation: -4710.0 m * Location: Atlantic Ocean * Campaign: * Basis: Eastward * Comment: Institute: Duke University

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	Comment
1	Event label	Event		Furbish, William J
2	Latitude of event	Latitude		Furbish, William J
3	Longitude of event	Longitude		Furbish, William J
4	Elevation of event	Elevation	m	Furbish, William J
5	DEPTH, sediment/rock	Depth sed	m	Furbish, William J	Geocode
6	Nodules	Nodules	#	Furbish, William J	total examined by station (NoduleNbr)
7	Nodules	Nodules	#	Furbish, William J	with pre-existing foreign inclusions (PreBorrowNbr)
8	Nodules	Nodules	#	Furbish, William J	with fresh burrows (YngBorrowNbr)

License:

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

Size:

18 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	6 Nodules [#] (total examined by station (No...)	7 Nodules [#] (with pre-existing foreign inc...)	8 Nodules [#] (with fresh burrows (YngBorrow...)
EASTW-11066	27.2150	-76.4333	-4520	21	18	20
EASTW-11067	27.1833	-76.4500	-4600	15	0	15
EASTW-11068	27.2333	-76.4383	-4710	9	0	9
EASTW-11069	27.1917	-76.3833	-4700	18	0	12
EASTW-15798	30.0967	-76.6667	-2440	9	9	4
EASTW-15802	30.2500	-76.3667	-4550	15	7	12