(Table 1) Mineral composition of sand- and silt-sized fractions of bottom sediments from the Romanche Trench
| Cobertura |
MEDIAN LATITUDE: -0.183340 * MEDIAN LONGITUDE: -18.456660 * SOUTH-BOUND LATITUDE: -0.267000 * WEST-BOUND LONGITUDE: -18.717000 * NORTH-BOUND LATITUDE: 0.067000 * EAST-BOUND LONGITUDE: -18.333000 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 1.650 m |
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| Data(s) |
16/11/1970
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| Resumo |
A study was made of mineral composition of sand- and silt-sized fractions of recent clastic (riftogenic) sediments and solidified deposits collected from the bottom of the Romanche Trench during the first voyage of R/V Akademik Kurchatov. Similarity between mineral compositions of sediments and bedrocks (ultrabasites, gabbroids, diabases) was established. This similarity is a basis for considering the mineral complex of the deposits that have been derived from the bedrocks of the trench slopes, and have formed due to their submarine denudation accompanied by tectonic crushing. The same mineral composition was found in pieces of older consolidated deposits; this suggests that conditions of sedimentation similar to those at recent times have existed for a long time in the Romanche Trench. |
| Formato |
text/tab-separated-values, 440 data points |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.753707 doi:10.1594/PANGAEA.753707 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Soldatov, AV; Murdmaa, Ivar O (1970): The mineral composition of the deposits in the Romanche gap. Oceanology, 10, 375-381 |
| Palavras-Chave | #AK1-08; AK1-10GC; AK1-5GR; AK1-7DRG; AK1-7GC; Akademik Kurchatov; AKU1; Anthophyllite; Apatite; Archive of Ocean Data; ARCOD; Augite-diopside; Black ore; Carbonate, authigenic; Carbonate, biogenic; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dredge; DRG; Elevation of event; Enstatite-bronzite; Epidote-zoisite; Event label; Feldspar; Fish teeh and bones; Garnet; GC; Grab; GRAB; Gravity corer; Heavy minerals; Heavy minerals, sum; Hornblende; Hornblende, basaltic; Hypersthene; Latitude of event; Leucoxene; Light minerals; Light minerals, sum; Longitude of event; Mica; Nonidentified, altered, heavy; Nonidentified, altered, light; Olivine; Opal, biogenic silica; Quartz; Red ore; Romanche Trench; Serpentine-chlorite; Size fraction; Spinel; Tremolite/Actinolite; Volcanic glass, heavy; Volcanic glass, light; Zircon |
| Tipo |
Dataset |
