(Table 2) Age model of ODP Site 184-1146 ...

Orbital tuning of benthic d18O is a common approach for assigning ages to ocean sediment records. Similar environmental forcing of the northern South China Sea and the southeast Asian cave regions allows for transfer of the speleothem d18O radiometric chronology to the planktonic and benthic d18O re...

Full description

Bibliographic Details
Main Authors: Caballero-Gill, Rocio P, Clemens, Steven C, Prell, Warren L
Format: Dataset
Language:English
Published: PANGAEA 2012
Subjects:
Number
DEPTH, sediment/rock
Age model
Age, error
Sample code/label
Age, minimum/young
Sample code/label 2
Age, maximum/old
Comment
Reference/source
Composite Core
Leg184
Joides Resolution
Ocean Drilling Program ODP
Ice Sheet
Online Access:https://dx.doi.org/10.1594/pangaea.825967
https://doi.pangaea.de/10.1594/PANGAEA.825967
Description
Summary:Orbital tuning of benthic d18O is a common approach for assigning ages to ocean sediment records. Similar environmental forcing of the northern South China Sea and the southeast Asian cave regions allows for transfer of the speleothem d18O radiometric chronology to the planktonic and benthic d18O records from Ocean Drilling Program Site 1146, yielding a new chronology with 41 radiometrically calibrated datums, spanning the past 350 kyr. This approach also provides for an independent assessment of the accuracy of the orbitally tuned benthic d18O chronology for the last 350 kyr. The largest differences relative to the latest chronology occur in marine isotope stages (MIS) 5.4, 5.5, 6, 7, and 9.3. Prominent suborbital-scale structure believed to be global in nature is identified within MIS 5.4 and MIS 7.2. On the basis of the radiometrically calibrated chronology, the time constant of the ice sheet is found to be 5.4 kyr at the precession band (light d18O lags precession minima by -55.4°) and 10.4 kyr at the ... : Sediment depth is given in Rmcd09. ...

Similar Items