Khusid, Tatyana A (1984): Number of living and dead foraminifers in the upprmost layer of bottom sediments from the Pacific shelf of South America and environmental characteristics [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.755927, Supplement to: Khusid, TA (1984): On dissolution of carbonate tests of benthic foraminifera on the Pacific shelf of the South America. Oceanology, 24(1), 85-91
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Abstract:
After death of benthic and planktic foraminifera their tests intensive dissolve in sediments of the upper sublittoral zone (depth 30-60 m) in the highest productivity area of surface water in the northern Peruvian region. Dissolution of fine pelitic ooze is more intensive than of sandy sediments. Rate of dissolution is lower in the lower sublittoral zone (60-200 m) than in the upper part of the zone. Within the upper bathyal zone (300-500 m) dissolution decreases and results to accumulation of carbonate test in this zone. Benthic tests are more abundant than planktic ones. Very poor species composition and a peculiar set of species are characteristic of foraminiferal assemblages found in the sublittoral and upper bathyal zones along the Peruvian coast.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -10.991320 * Median Longitude: -77.795000 * South-bound Latitude: -21.133300 * West-bound Longitude: -80.150000 * North-bound Latitude: -8.400000 * East-bound Longitude: -70.366700
Minimum Elevation: -590.0 m * Maximum Elevation: -50.0 m
Event(s):
AK4-250 * Latitude: -21.133300 * Longitude: -70.366700 * Elevation: -150.0 m * Location: Chile shelf * Campaign: AKU4 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
AK4-285-GR * Latitude: -8.500000 * Longitude: -79.000000 * Elevation: -50.0 m * Campaign: AKU4 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
AK4-286-GR * Latitude: -8.485000 * Longitude: -79.613300 * Elevation: -100.0 m * Campaign: AKU4 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
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 | Oxygen | O2 | µmol/l | Khusid, Tatyana A | in bottom water | |
| 6 | pH | pH | Khusid, Tatyana A | of bottom water | ||
| 7 | Temperature, water | Temp | °C | Khusid, Tatyana A | of bottom water | |
| 8 | Sediment type | Sediment | Khusid, Tatyana A | |||
| 9 | Carbon, organic, total | TOC | % | Khusid, Tatyana A | Wet combustion | |
| 10 | Calcium carbonate | CaCO3 | % | Khusid, Tatyana A | Volumetric with HCl | |
| 11 | Opal, biogenic silica | bSiO2 | % | Khusid, Tatyana A | Double leaching by 5% Na2CO3 | |
| 12 | Foraminifera, benthic living | Foram benth l | #/10 cm2 | Khusid, Tatyana A | Calculated | |
| 13 | Foraminifera, benthic dead | Foram benth d | #/10 cm2 | Khusid, Tatyana A | Calculated | |
| 14 | Foraminifera, benthic living | Foram benth l | % | Khusid, Tatyana A | Calculated | |
| 15 | Foraminifera, planktic | Foram plankt | % | Khusid, Tatyana A | Calculated | of total |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
53 data points