Underwood, Michael B (1986): (Table 2) Composition of Aleutian Trench sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.763453, In supplement to: Underwood, MB (1986): Sediment provenance within subduction complexes - an example from the Aleutian forearc. Sedimentary Geology, 51(1-2), 57-73, https://doi.org/10.1016/0037-0738(86)90024-2
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Coverage:
Median Latitude: 52.035857 * Median Longitude: -166.785714 * South-bound Latitude: 50.800000 * West-bound Longitude: -172.600000 * North-bound Latitude: 53.900000 * East-bound Longitude: -158.400000
Date/Time Start: 1965-09-12T00:00:00 * Date/Time End: 1968-09-02T00:00:00
Minimum DEPTH, sediment/rock: 0.21 m * Maximum DEPTH, sediment/rock: 5.30 m
Event(s):
RC10-210 * Latitude: 50.800000 * Longitude: -172.600000 * Date/Time: 1966-07-27T00:00:00 * Elevation: -7284.0 m * Recovery: 5.07 m * Campaign: RC10 * Basis: Robert Conrad * Method/Device: Piston corer (PC)
RC10-212 * Latitude: 51.100000 * Longitude: -170.100000 * Date/Time: 1966-07-28T00:00:00 * Elevation: -7231.0 m * Recovery: 5.83 m * Campaign: RC10 * Basis: Robert Conrad * Method/Device: Piston corer (PC)
RC10-213 * Latitude: 51.817000 * Longitude: -167.800000 * Date/Time: 1966-07-28T00:00:00 * Elevation: -7196.0 m * Recovery: 3.95 m * Campaign: RC10 * Basis: Robert Conrad * Method/Device: Piston corer (PC)
Comment:
Point counting analysis
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Quartz, monocrystalline | MonoQz | % | Underwood, Michael B | Counting 63-500 µm fraction | |
| 4 | Quartz, polycrystalline | PolyQz | % | Underwood, Michael B | Counting 63-500 µm fraction | |
| 5 | Chert | Chert | % | Underwood, Michael B | Counting 63-500 µm fraction | cryptocrystalline quartz |
| 6 | Plagioclase | Pl | % | Underwood, Michael B | Counting 63-500 µm fraction | |
| 7 | Kalifeldspar | Kfs | % | Underwood, Michael B | Counting 63-500 µm fraction | |
| 8 | Volcanic glass | Volc glass | % | Underwood, Michael B | Counting 63-500 µm fraction | |
| 9 | Rock fragments | Rock fragm | % | Underwood, Michael B | Counting 63-500 µm fraction | volcanic |
| 10 | Rock fragments | Rock fragm | % | Underwood, Michael B | Counting 63-500 µm fraction | sedimentary |
| 11 | Rock fragments | Rock fragm | % | Underwood, Michael B | Counting 63-500 µm fraction | metamorphic |
| 12 | Heavy minerals | HM | % | Underwood, Michael B | Counting 63-500 µm fraction | |
| 13 | Fragments | Fragm | % | Underwood, Michael B | Counting 63-500 µm fraction | biogenic fragments + carbonate grains + mica + opaque grains + oxidized + unknown |
| 14 | Total counts | Total counts | # | Underwood, Michael B | Counting 63-500 µm fraction |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
252 data points
Data
| 1 Event | 2 Depth sed [m] | 3 MonoQz [%] | 4 PolyQz [%] | 5 Chert [%] (cryptocrystalline quartz) | 6 Pl [%] | 7 Kfs [%] | 8 Volc glass [%] | 9 Rock fragm [%] (volcanic) | 10 Rock fragm [%] (sedimentary) | 11 Rock fragm [%] (metamorphic) | 12 HM [%] | 13 Fragm [%] (biogenic fragments + carbonat...) | 14 Total counts [#] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| V21-166 | 0.95 | 18.3 | 2.4 | 0.9 | 32.2 | 3.0 | 4.8 | 19.2 | 4.1 | 1.3 | 9.6 | 4.1 | 459 |
| V21-166 | 3.27 | 1.0 | 0.0 | 0.2 | 11.8 | 0.0 | 28.2 | 51.6 | 1.9 | 0.2 | 3.1 | 1.9 | 479 |
| V21-166 | 3.75 | 1.8 | 1.0 | 0.0 | 12.0 | 0.4 | 12.2 | 62.5 | 3.7 | 0.0 | 3.3 | 3.0 | 491 |
| V21-166 | 4.39 | 3.8 | 0.6 | 11.2 | 20.8 | 0.0 | 10.0 | 49.9 | 7.0 | 0.6 | 4.7 | 2.3 | 471 |
| V21-167 | 0.80 | 17.8 | 1.9 | 0.4 | 37.1 | 3.7 | 2.2 | 10.2 | 13.7 | 2.6 | 5.6 | 4.8 | 461 |
| V21-170 | 0.25 | 8.5 | 1.0 | 1.0 | 28.0 | 2.9 | 11.1 | 27.8 | 10.3 | 0.8 | 2.3 | 6.1 | 485 |
| V21-170 | 1.15 | 3.2 | 0.4 | 0.2 | 27.4 | 3.2 | 7.5 | 41.5 | 8.3 | 0.8 | 3.8 | 3.7 | 468 |
| V21-170 | 2.18 | 5.6 | 1.8 | 0.3 | 33.3 | 2.8 | 12.9 | 24.4 | 3.1 | 2.1 | 5.4 | 8.2 | 426 |
| V21-170 | 2.50 | 7.9 | 0.8 | 0.4 | 38.6 | 1.1 | 7.0 | 28.3 | 7.0 | 0.2 | 3.4 | 5.1 | 469 |
| RC10-210 | 0.21 | 8.1 | 1.3 | 0.7 | 27.1 | 1.1 | 16.2 | 33.3 | 5.0 | 0.4 | 3.1 | 3.2 | 457 |
| RC10-212 | 1.48 | 2.4 | 0.6 | 0.0 | 16.4 | 0.0 | 29.7 | 40.1 | 3.4 | 0.0 | 1.5 | 5.7 | 464 |
| RC10-212 | 1.96 | 17.0 | 1.4 | 0.0 | 23.1 | 4.5 | 5.7 | 13.4 | 16.8 | 0.7 | 3.2 | 14.2 | 441 |
| RC10-212 | 2.07 | 0.0 | 0.0 | 0.0 | 16.5 | 0.2 | 8.8 | 62.6 | 1.0 | 0.0 | 7.0 | 3.9 | 486 |
| RC10-212 | 2.70 | 11.2 | 3.0 | 1.2 | 31.6 | 0.0 | 5.1 | 27.8 | 9.7 | 1.8 | 5.5 | 3.0 | 493 |
| RC10-212 | 5.30 | 1.8 | 0.4 | 0.0 | 11.0 | 0.2 | 24.6 | 36.5 | 18.8 | 1.1 | 1.6 | 3.9 | 447 |
| RC10-213 | 0.32 | 5.8 | 0.5 | 0.9 | 26.8 | 1.8 | 8.3 | 36.7 | 12.0 | 0.0 | 3.5 | 3.6 | 433 |
| RC10-213 | 1.30 | 7.1 | 1.0 | 0.3 | 26.4 | 2.4 | 4.9 | 27.0 | 15.9 | 2.6 | 6.3 | 5.4 | 492 |
| RC10-213 | 3.16 | 9.7 | 1.8 | 0.2 | 28.8 | 3.6 | 14.2 | 24.0 | 9.9 | 1.3 | 2.9 | 3.5 | 445 |
| RC10-213 | 3.68 | 7.2 | 11.2 | 0.2 | 30.2 | 3.0 | 21.7 | 19.0 | 8.0 | 0.2 | 2.1 | 8.2 | 474 |
| RC12-178 | 0.36 | 14.1 | 1.8 | 2.0 | 33.1 | 5.2 | 0.4 | 18.8 | 14.1 | 3.2 | 5.7 | 1.6 | 504 |
| RC12-178 | 1.28 | 10.2 | 2.2 | 0.4 | 44.7 | 4.1 | 2.2 | 14.2 | 12.9 | 2.4 | 4.3 | 2.2 | 459 |