Skornyakova, Nadezhda S; Andrushchenko, Polina F; Fomina, Lidiya S (1964): Description and composition iron-manganese concretions from the Pacific [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.858773, Supplement to: Skornyakova, NS et al. (1964): Chemical composition of the Pacific ocean's iron-manganese concretions. Deep Sea Research and Oceanographic Abstracts, 11(1), 93-104, https://doi.org/10.1016/0011-7471(64)91086-1
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
One the most interesting features of ocean sedimentation is the manganese formations on the surface of the ocean floor in some areas. These are especially widespread in the Pacific Ocean as concretions, grains, and crusts on rock fragments and bedrock outcrops. Iron-manganese concretions are the most abundant as they completely cover about 10% of the bottom of the Pacific Ocean where there are ore concentrations. The concretions occupy from 20-50% of the bottom and up to 80-90% on separate submarine rises. Such concretions are found in different types of bottom deposits, from abyssal red clays to terrigenous muds, but they occur most widely in red clays and quite often in carbonate muds. Their shape and their dimensions are very diverse and change from place to place, from station to station, varying from 0.5-20 cm. They may be oval, globular, reniform, or slaggy and often they are fiat or isometric concretions of an indefinite shape. The concretions generally have nuclei of pumice, basalt fragments, clayey and tuffaceous material, sharks' teeth, whale ossicles, and fossil sponges. Most concretions have concentric layers, combined with dendritic ramifications of iron and manganese oxides.
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: 12.035210 * Median Longitude: -162.775875 * South-bound Latitude: -41.983000 * West-bound Longitude: 134.498300 * North-bound Latitude: 44.466700 * East-bound Longitude: -85.233000
Date/Time Start: 1954-09-24T00:00:00 * Date/Time End: 1959-03-01T00:00:00
Event(s):
DWBD4 * Latitude: -17.333330 * Longitude: -146.500000 * Date/Time: 1957-11-12T00:00:00 * Elevation: -2823.0 m * Location: Pacific Ocean * Campaign: DOWNWIND-B1 (DNWB0ABD) * Basis: Spencer F. Baird * Method/Device: Dredge (DRG)
DWBD15 * Latitude: -15.383000 * Longitude: -136.300000 * Elevation: -4480.0 m * Campaign: DOWNWIND-B1 (DNWB0ABD) * Basis: Spencer F. Baird * Method/Device: Dredge (DRG)
DWHD47 * Latitude: -41.983000 * Longitude: -102.017000 * Date/Time: 1957-12-13T00:00:00 * Elevation: -4200.0 m * Location: Pacific Ocean * Campaign: DOWNWIND-H * Basis: Horizon * 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.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
Download Data
Datasets listed in this publication series
- Skornyakova, NS; Andrushchenko, PF; Fomina, LS (1964): Annotated record of the detailed examination of ferromanganese concretions recovered by the R/V Vityaz in the Pacific Ocean. https://doi.org/10.1594/PANGAEA.858770
- Skornyakova, NS; Andrushchenko, PF; Fomina, LS (1964): (Table 3, Page 98) Chemical composition of iron-manganese concretions from the Pacific Ocean recovered by the R/V Vityaz (Analyses carried out in the Marine Geology Section of the Institute of Oceanology, Academy of Sciences, U.S.S.R.). https://doi.org/10.1594/PANGAEA.858771
- Skornyakova, NS; Andrushchenko, PF; Fomina, LS (1964): (Table 4, Page 98) Chemical composition of iron-manganese concretions from the Pacific Ocean recovered by the R/V Vityaz (Analyses carried out in the Exogene Section of the I. G. Ye. M., Academy of Sciences, U.S.S.R.). https://doi.org/10.1594/PANGAEA.858772