Citation:

16, 66 pp, Rec1988_016.pdf

Name: Annotated record of the detailed examination of Mn deposits from the R/V Rig Seismic Cruise 11 (BMR 66) in 1986 over the Great Australian Bight Basin area
Published: 1988
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

Late Cretaceous and younger sediments dredged from the upper continental slope and canyon walls in the Great Australian Bight Basin between 126° and 136°E broadly confirm the stratigraphy which had been established previously from scattered exploration wells. Late Cretaceous to Early Eocene marine and marginal marine terrigenous sediments are overlain by Middle Eocene and younger pelagic carbonate (fine limestone and calcareous ooze). The samples provide the first evidence of truly marine Maastrichtian sedimentation, with abundant calcareous nannoplankton, on the southern margin of the continent. Other samples of interest include Precambrian sheared granodiorite on the upper slope south of Eyre Terrace, Paleocene phosphatic sediment in 'Eucla' Canyon at 128° 30'E, and terrigenous Early Miocene mudstone at 133° 20' and 134° 50'E. The mudstone is of note as an exception to the uniform pelagic carbonate wackestone and ooze which characterise Middle Eocene and younger sedimentation at all other sites. Fragments of alkali basalt lava of unknown age were recovered in 'Eucla' Canyon. Cores are mostly pelagic calcareous ooze, but those from submarine canyons include terrigenous turbidites.

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: -35.206748 * Median Longitude: 134.714174 * South-bound Latitude: -35.730870 * West-bound Longitude: 132.857742 * North-bound Latitude: -34.703776 * East-bound Longitude: 135.589614

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

Event(s):

BMR66-6D (66DR06) * Latitude: -34.703776 * Longitude: 132.857742 * Elevation: -2015.0 m * Recovery: 50 [kg] * Location: Great Autralian Bight * Campaign: * Basis: Rig Seismic * Method/Device: Dredge (DRG)

BMR66-11D (66DR11) * Latitude: -34.754703 * Longitude: 135.219973 * Elevation: -2141.0 m * Recovery: 40 [kg] * Location: Great Autralian Bight * Campaign: * Basis: Rig Seismic * Method/Device: Dredge (DRG)

BMR66-14D (66DR14) * Latitude: -35.637645 * Longitude: 135.189365 * Elevation: -2627.0 m * Recovery: 35 [kg] * Location: Great Autralian Bight * Campaign: * Basis: Rig Seismic * Method/Device: Dredge (DRG)

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		Davies, Hugh L
2	Latitude of event	Latitude		Davies, Hugh L
3	Longitude of event	Longitude		Davies, Hugh L
4	Elevation of event	Elevation	m	Davies, Hugh L
5	Identification	ID		Davies, Hugh L
6	DEPTH, sediment/rock	Depth sed	m	Davies, Hugh L		Geocode
7	Position	Position		Davies, Hugh L	Visual description
8	Deposit type	Deposit type		Davies, Hugh L
9	Quantity of deposit	Quantity		Davies, Hugh L
10	Size	Size		Davies, Hugh L
11	Substrate type	Substrate		Davies, Hugh L
12	Sediment type	Sediment		Davies, Hugh L
13	Comment	Comment		Davies, Hugh L
14	Description	Description		Davies, Hugh L

License:

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

Size:

33 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 ID	7 Position	8 Deposit type	9 Quantity	10 Size	11 Substrate	12 Sediment	13 Comment	14 Description
BMR66-6D	-34.70378	132.85774	-2015	BMR66-6D-1	Surface	Mn crust	Several	Small	Rock; limestone fragment	Calcareous ooze	Oligocene fine pelagic wackestone	Several small fragments of white limestone (foraminiferal spicular wackestone partly replaced by Mn oxides) with a distintive ferruginous and manganiferous weathering crust.
BMR66-11D	-34.75470	135.21997	-2141	BMR66-11D-1	Surface	Mn coating	Several		Consolidated sediment	Calcareous ooze	White chalky ooze (spicular wackestone)	Borings/burrows still open and some lined by brown material (iron or manganese oxide) which also coats some other surfaces.
BMR66-14D	-35.63764	135.18936	-2627	BMR66-14D-1	Surface	Mn staining	Several		Rock; limestone	Calcareous ooze		Hard white limestone (foraminiferal lime mudstone); well bored; probably represents a hardground surface; iron and manganese staining on surface; stylolites and weak planar layering.
BMR66-15D	-35.73087	135.58961	-2494	BMR66-15D-1	Surface	Mn crust	Several	Large	Rock; mudstone	Lime mudstone	85 percent is white (5Y8/l) with greenish tinge, soft friable foraminiferal lime mudstone; forms rounded blocks	Small filled and unfilled burrows; exposed surfaces encrusted with manganese oxide and bored.