Sediment and physical record of ODP Site 178-1095
| Cobertura |
MEDIAN LATITUDE: -66.767671 * MEDIAN LONGITUDE: -77.802036 * SOUTH-BOUND LATITUDE: -66.985450 * WEST-BOUND LONGITUDE: -78.487867 * NORTH-BOUND LATITUDE: -64.372200 * EAST-BOUND LONGITUDE: -70.261180 * DATE/TIME START: 1998-02-13T00:00:00 * DATE/TIME END: 1998-03-18T10:30:00 |
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| Data(s) |
14/02/2009
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| Resumo |
Sediments recovered from a drift deposit lying along the Pacific margin of the Antarctic Peninsula, (ODP Leg 178, Site 1095) provide a physical record of the Antarctic Circumpolar Current since late Miocene time. Determination of the strength of the magnetic fabric, anisotropy of magnetic susceptibility, provides a proxy for current strength. Fabric strength declines throughout the record from high values in the late Miocene; a pronounced step occurs between 5.0 and 5.5 Ma, and values decrease more gradually since about 3.0 Ma. The mass accumulation rate of terrigenous sediment derived from the Antarctic Peninsula indicates stabilization of the Antarctic Peninsula Ice Cap prior to about 8.5 Ma. |
| Formato |
application/zip, 6 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.775979 doi:10.1594/PANGAEA.775979 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Hassold, Noralynn JC; Rea, David K; van der Pluijm, Ben A; Parés, Josep M (2009): A physical record of the Antarctic Circumpolar Current: Late Miocene to recent slowing of abyssal circulation. Palaeogeography, Palaeoclimatology, Palaeoecology, 275(1-4), 28-39, doi:10.1016/j.palaeo.2009.01.011 |
| Palavras-Chave | #143Nd/144Nd; 143Nd/144Nd e; 178-1095; 178-1095A; 178-1095B; 178-1101A; 87Sr/86Sr; 87Sr/86Sr e; Acc rate >63 µm; Acc rate SiO2; Acc rate terr; Accumulation rate, sand > 63 µm; Accumulation rate, silica; Accumulation rate, terrigeneous; Age; AGE; Age model; at 298 K; at 77 K; bSiO2; Calculated; COMPCORE; Composite Core; corrected; D50; Depth; DEPTH, sediment/rock; DRILL; Drilling/drill rig; e-Nd; epsilon-Neodymium; Event; f50; inclusive graphic standard deviation (IGSD); Joides Resolution; Label; Leg178; Magnetic susceptibility; Magnitude of anisotropy; MAGS; mbsf; Median, grain size; Neodymium 143/Neodymium 144; Neodymium 143/Neodymium 144, error; Ocean Drilling Program; ODP; ODP sample designation; Opal, biogenic silica; P`; Sample code/label; Sedimentation rate; Sed rate; Shape of susceptibility; South Pacific Ocean; Standard deviation; Std dev; Strontium 87/Strontium 86, error; Strontium 87/Strontium 86 ratio; Susceptibility unit Kappabridge KLY-2; T; Terr; Terrigeneous; Thermal Ionization Mass Spectrometry (TIMS) |
| Tipo |
Dataset |
