Thorn, Vanessa C (2004): (Table T1) Stratigraphic distribution of phytoliths at ODP Site 188-1165 and 188-1166 sediments (continental slope) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.780319, Supplement to: Thorn, VC (2004): Data report: Phytoliths in drill core sediments from Sites 1165 and 1166, Leg 188, Prydz Bay, East Antarctica. In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-12, https://doi.org/10.2973/odp.proc.sr.188.002.2004
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Abstract:
Rare phytoliths are described from Late Cretaceous to Quaternary deep-sea sediments from Sites 1165 and 1166, Prydz Bay, East Antarctica. The phytoliths are comparable to modern tree/shrub, grass, and fern forms, although some may be modern contaminants. Spherical tree/shrub phytoliths are the most common, occurring particularly in the lower middle to middle Miocene core sections at Site 1165. All phytolith forms observed (except irregular and folded sphericals) have been previously described in other Antarctic sediments. The low phytolith abundances in the cores probably result from a combination of factors including the substantial distance offshore of the drill sites, taphonomic influences (low source production, soil dissolution, and dilution of terrigenous material during transport and deposition), and silica diagenesis downhole.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -65.485087 * Median Longitude: 69.741347 * South-bound Latitude: -67.696160 * West-bound Longitude: 67.218060 * North-bound Latitude: -64.379450 * East-bound Longitude: 74.786930
Date/Time Start: 2000-01-29T05:15:00 * Date/Time End: 2000-02-21T16:00:00
Minimum DEPTH, sediment/rock: 1.29 m * Maximum DEPTH, sediment/rock: 996.28 m
Event(s):
188-1165B * Latitude: -64.379650 * Longitude: 67.219050 * Date/Time Start: 2000-01-29T05:15:00 * Date/Time End: 2000-02-04T05:30:00 * Elevation: -3537.6 m * Penetration: 682.2 m * Recovery: 434.04 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 76 cores; 682.2 m cored; 0 m drilled; 63.6 % recovery
188-1165C * Latitude: -64.379450 * Longitude: 67.218060 * Date/Time Start: 2000-02-04T05:30:00 * Date/Time End: 2000-02-14T20:30:00 * Elevation: -3537.5 m * Penetration: 999.1 m * Recovery: 269.27 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 335.7 m cored; 663.4 m drilled; 80.2 % recovery
188-1166A * Latitude: -67.696160 * Longitude: 74.786930 * Date/Time Start: 2000-02-16T01:30:00 * Date/Time End: 2000-02-21T16:00:00 * Elevation: -475.4 m * Penetration: 381.3 m * Recovery: 71.31 m * Location: Prydz Bay * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 381.3 m cored; 0 m drilled; 18.7 % recovery
Comment:
Sediment depth is given in mbsf. X = present, R = rare and poorly preserved fragments, - = not found. # = possible contaminant. Numbers represent counts of distinctive phytoliths.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Bulliform (grass) | |
| 4 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Festucoid (grass) | |
| 5 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Panicoid-opaque (grass) | |
| 6 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Striated plate (fern) | |
| 7 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Anticlinal epidermal (tree/shrub) | |
| 8 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Spherical irregular (tree/shrub) | |
| 9 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Spherical folded (tree/shrub) | |
| 10 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Spherical verrucose (tree/shrub) | |
| 11 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Spherical pellet (tree/shrub) | |
| 12 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Spherical smooth-opaque (tree/shrub) | |
| 13 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Spherical spinulose (tree/shrub) | |
| 14 | Phytoliths | Phytoliths | # | Thorn, Vanessa C | Cubic (unknown) | |
| 15 | Phytoliths | Phytoliths | Thorn, Vanessa C | Plates and blocks (unknown) | ||
| 16 | Sum | Sum | # | Thorn, Vanessa C | total phytoliths; does not include plate/block phytolith morphologies | |
| 17 | Chaetoceros spores | Chaet spores | Thorn, Vanessa C | genus questionable | ||
| 18 | Diatom frustules | Diatom frust | Thorn, Vanessa C | frustules-whole/fragments | ||
| 19 | Chrysophyceae cysts | Chrysophyceae cysts | Thorn, Vanessa C | |||
| 20 | Chrysophyceae | Chrysophyceae | Thorn, Vanessa C | Parmales | ||
| 21 | Radiolarians abundance | Rad abund | Thorn, Vanessa C | |||
| 22 | Palynomorpha, terrestrial | Palyn ter | Thorn, Vanessa C | silicified | ||
| 23 | Silicoflagellate abundance | Silicoflag abund | Thorn, Vanessa C | |||
| 24 | Sponge spiculae | Sponge spic | Thorn, Vanessa C | |||
| 25 | Siliceous microfossils | Silic foss | Thorn, Vanessa C | testate amoeba plates? | ||
| 26 | Epoch | Epoch | Thorn, Vanessa C |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
936 data points