(Table 1) Diatom events for AND1-1B, CIROS-2, DVDP-10, and DVDP-11 cores including observed and placed depths


Autoria(s): Levy, Richard; Cody, Rosemary; Crampton, James; Fielding, Christopher R; Golledge, Nick; Harwood, David M; Henrys, Stuart; McKay, Robert M; Naish, Timothy; Ohneiser, Christian; Wilson, Gary S; Wilson, Terry; Winter, Diane M
Cobertura

MEDIAN LATITUDE: -77.685367 * MEDIAN LONGITUDE: 164.386379 * SOUTH-BOUND LATITUDE: -77.889440 * WEST-BOUND LONGITUDE: 163.411195 * NORTH-BOUND LATITUDE: -77.578612 * EAST-BOUND LONGITUDE: 167.089320 * DATE/TIME START: 1974-10-29T00:00:00 * DATE/TIME END: 2006-12-26T00:00:00 * MINIMUM DEPTH, sediment/rock: -0.55 m * MAXIMUM DEPTH, sediment/rock: 840.64 m

Data(s)

19/06/2012

Resumo

Late Neogene stratigraphy of southern Victoria Land Basin is revealed in coastal and offshore drill cores and a network of seismic data in McMurdo Sound, Antarctica. These data preserve a record of ice sheet response to global climate variability and progressive cooling through the past 5 million years. Application of a composite standard age model for diatom event stratigraphy to the McMurdo Sound drill cores provides an internally precise mechanism to correlate stratigraphic data and derive an event history for the basin. These marine records are indirectly compared to data obtained from geological outcrop in the Transantarctic Mountains to produce an integrated history of Antarctic Ice Sheet response to climate variability from the early Pliocene to Recent. Four distinct chronostratigraphic intervals reflect stages and steps in a transition from a relatively warm early Pliocene Antarctic coastal climate to modern cold polar conditions. Several of these stages and steps correlate with global events identified via geochemical proxy data recovered from deep ocean cores in mid to low latitudes. These correlations allow us to consider linkages between the high southern latitudes and tropical regions and establish a temporal framework to examine leads and lags in the climate system through the late Neogene and Quaternary. The relative influence of climate-tectonic feedbacks is discussed in light of glacial erosion and isostatic rebound that also influence the history along the Southern Victoria Land coastal margin.

Formato

text/tab-separated-values, 936 data points

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.815841

doi:10.1594/PANGAEA.815841

Idioma(s)

en

Publicador

PANGAEA

Relação

Cody, Rosemary; Levy, Richard; Crampton, James; Naish, Timothy; Wilson, Gary S; Harwood, David M (2012): Selection and stability of quantitative stratigraphic age models: Plio-Pleistocene glaciomarine sediments in the ANDRILL 1B drillcore, McMurdo Ice Shelf. Global and Planetary Change, 96-97, 143-156, doi:10.1016/j.gloplacha.2012.05.017

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Levy, Richard; Cody, Rosemary; Crampton, James; Fielding, Christopher R; Golledge, Nick; Harwood, David M; Henrys, Stuart; McKay, Robert M; Naish, Timothy; Ohneiser, Christian; Wilson, Gary S; Wilson, Terry; Winter, Diane M (2012): Late Neogene climate and glacial history of the Southern Victoria Land coast from integrated drill core, seismic and outcrop data. Global and Planetary Change, 80-81, 61-84, doi:10.1016/j.gloplacha.2011.10.002

Palavras-Chave #AGE; Age, maximum/old; Age, minimum/young; Ageprofile Datum Description; Ageprofile Datum Type; AND1-1B; AND-1B; CIROS; CIROS-2; Commonwealth Glacier; Depth, reference; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DVDP; DVDP-10; DVDP-11; Event label; International Polar Year (2007-2008); IPY; Latitude of event; Longitude of event; McMurdo Ice Shelf; McMurdo Sound; McMurdo Station; MIS; New Harbor; Sampling/drilling ice; Sampling on land
Tipo

Dataset