Bramlette, M; Faughn, James L; Hurley, RJ (1959): Annotated record of the detailed examination of Mn deposits of the Eniwetok Atoll [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.857399, Supplement to: Bramlette, M et al. (1959): Anomalous sediment deposition on the flank of Eniwetok Atoll. Geological Society of America Bulletin, 70(12), 1549-1552, https://doi.org/10.1130/0016-7606(1959)70%5B1549:ASDOTF%5D2.0.CO;2
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Abstract:
Some short cores from the shelf at about 800-1000 fathoms on the southwest flank of Eniwetok Atoll penetrated Pliocene deposits with little to no later sediment cover. The Quaternary deposits include much coarse reef debris, particularly the fragments of algae such as Halimeda and other shallow-water material up to several millimeters in grain size, mixed with varying amounts of pelagic Foraminifera. The Pliocene sediments (one may be upper Miocene) are pure pelagic deposits of much finer grain size, consisting of coccoliths and pelagic Foraminifera with no admixture of reef material. Bottom photographs show areas of well-developed ripple marks in coarse sediment (C. J. Shipek, manuscript) apparently formed only in the areas with the veneer of post-Tertiary coarse sediments. A brown impregnation at the top and extending down as mottling for a few centimeters is also usual in the Tertiary sediment of the cores. This seems to consist of iron and manganese oxides and adds somewhat to the induration.
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):
Coverage:
Median Latitude: 11.293689 * Median Longitude: 162.107905 * South-bound Latitude: 11.233330 * West-bound Longitude: 162.048330 * North-bound Latitude: 11.340000 * East-bound Longitude: 162.151670
Date/Time Start: 1956-12-01T00:00:00 * Date/Time End: 1956-12-04T00:00:00
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 0.2 m
Event(s):
ENIW3PH-1225 (3-J1225) * Latitude: 11.310000 * Longitude: 162.078300 * Date/Time: 1956-12-01T00:00:00 * Elevation: -1850.0 m * Location: Eniwetok Atoll, Central Pacific * Campaign: ENIWETOK_Operation * Basis: H.M. Smith * Method/Device: Photo/Video (PV)
ENIW3PH-1226 (3-J1226) * Latitude: 11.311110 * Longitude: 162.071100 * Date/Time: 1956-12-01T00:00:00 * Elevation: -1850.0 m * Location: Eniwetok Atoll, Central Pacific * Campaign: ENIWETOK_Operation * Basis: H.M. Smith * Method/Device: Photo/Video (PV)
ENIW3PH-1227 (3-J1227) * Latitude: 11.312220 * Longitude: 162.063900 * Date/Time: 1956-12-01T00:00:00 * Elevation: -1850.0 m * Location: Eniwetok Atoll, Central Pacific * Campaign: ENIWETOK_Operation * Basis: H.M. Smith * Method/Device: Photo/Video (PV)
Comment:
Bottom photographs are part of a collection made available by the U.S. Navy Electronics, San Diego and can be downloaded from NOAA-NCEI: http://www.ngdc.noaa.gov/idb/struts/results?op_28=eq&v_28=09995025&t=101477&s=1&d=2. The NAGA images data card can be accessed here: hdl:10013/epic.46678.d001.
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 | Bramlette, M | |||
| 2 | Latitude of event | Latitude | Bramlette, M | |||
| 3 | Longitude of event | Longitude | Bramlette, M | |||
| 4 | Elevation of event | Elevation | m | Bramlette, M | ||
| 5 | Sample ID | Sample ID | Bramlette, M | |||
| 6 | DEPTH, sediment/rock | Depth sed | m | Bramlette, M | Geocode | |
| 7 | Position | Position | Bramlette, M | |||
| 8 | Deposit type | Deposit type | Bramlette, M | |||
| 9 | Quantity of deposit | Quantity | Bramlette, M | |||
| 10 | Size | Size | Bramlette, M | |||
| 11 | Substrate type | Substrate | Bramlette, M | |||
| 12 | Sediment type | Sediment | Bramlette, M | |||
| 13 | Comment | Comment | Bramlette, M | |||
| 14 | Description | Description | Bramlette, M | |||
| 15 | Uniform resource locator/link to image | URL image | Bramlette, M |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
341 data points