Soldatov, A V; Murdmaa, Ivar O (1970): (Table 1) Mineral composition of sand- and silt-sized fractions of bottom sediments from the Romanche Trench [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.753707, Supplement to: Soldatov, AV; Murdmaa, IO (1970): The mineral composition of the deposits in the Romanche gap. Oceanology, 10, 375-381
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Abstract:
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.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
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
Event(s):
AK1-5GR * Latitude: 0.067000 * Longitude: -18.717000 * Elevation: -4070.0 m * Location: Romanche Trench * Campaign: AKU1 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
AK1-7DRG * Latitude: -0.267000 * Longitude: -18.333000 * Elevation: -7200.0 m * Location: Romanche Trench * Campaign: AKU1 * Basis: Akademik Kurchatov * Method/Device: Dredge (DRG)
AK1-7GC * Latitude: -0.267000 * Longitude: -18.333000 * Elevation: -7200.0 m * Location: Romanche Trench * Campaign: AKU1 * Basis: Akademik Kurchatov * Method/Device: Gravity corer (GC)
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | ||||
2 | Latitude of event | Latitude | ||||
3 | Longitude of event | Longitude | ||||
4 | Elevation of event | Elevation | m | |||
5 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
6 | Depth, top/min | Depth top | m | Soldatov, A V | ||
7 | Depth, bottom/max | Depth bot | m | Soldatov, A V | ||
8 | Size fraction | Size fraction | Soldatov, A V | |||
9 | Heavy minerals | HM | % | Soldatov, A V | ||
10 | Augite-diopside | Aug-Di | % | Soldatov, A V | ||
11 | Enstatite-bronzite | En-bro | % | Soldatov, A V | ||
12 | Hypersthene | Hyp | % | Soldatov, A V | ||
13 | Olivine | Ol | % | Soldatov, A V | ||
14 | Epidote-zoisite | Ep-Zo | % | Soldatov, A V | ||
15 | Hornblende | Hbl | % | Soldatov, A V | ||
16 | Hornblende, basaltic | Hbl bas | % | Soldatov, A V | ||
17 | Tremolite/Actinolite | Tr/Act | % | Soldatov, A V | ||
18 | Anthophyllite | Ath | % | Soldatov, A V | ||
19 | Zircon | Zrn | % | Soldatov, A V | ||
20 | Spinel | Spl | % | Soldatov, A V | ||
21 | Apatite | Ap | % | Soldatov, A V | ||
22 | Garnet | Grt | % | Soldatov, A V | ||
23 | Mica | Mica | % | Soldatov, A V | ||
24 | Volcanic glass, heavy | Volc glass h | % | Soldatov, A V | ||
25 | Black ore | Black ore | % | Soldatov, A V | magnetic | |
26 | Black ore | Black ore | % | Soldatov, A V | non-magnetic | |
27 | Red ore | Red ore | % | Soldatov, A V | ||
28 | Leucoxene | Leucox | % | Soldatov, A V | ||
29 | Fish teeh and bones | Ftb | % | Soldatov, A V | ||
30 | Nonidentified, altered, heavy | Nonident alt heavy | % | Soldatov, A V | ||
31 | Heavy minerals, sum | HM sum | % | Soldatov, A V | ||
32 | Light minerals | LM | % | Soldatov, A V | ||
33 | Quartz | Qz | % | Soldatov, A V | ||
34 | Feldspar | Fsp | % | Soldatov, A V | <1.543 | |
35 | Feldspar | Fsp | % | Soldatov, A V | >1.543 | |
36 | Serpentine-chlorite | Srp-chl | % | Soldatov, A V | ||
37 | Nonidentified, altered, light | Nonident alt light | % | Soldatov, A V | ||
38 | Volcanic glass, light | Volc glass l | % | Soldatov, A V | ||
39 | Carbonate, authigenic | Carb auth | % | Soldatov, A V | ||
40 | Carbonate, biogenic | Carb biog | % | Soldatov, A V | ||
41 | Opal, biogenic silica | bSiO2 | % | Soldatov, A V | ||
42 | Light minerals | LM | % | Soldatov, A V | other | |
43 | Light minerals, sum | LM sum | % | Soldatov, A V |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
440 data points