FN Archimer Export Format
PT J
TI A late Quaternary planktonic foraminiferal oxygen isotope record of the Banda Sea: Chronostratigraphy, orbital forcing, and paleoceanographic implications
BT 
AF CHEN, Chih-Wei
   WEI, Kuo-Yen
   MII, Horng-Sheng
   YANG, Tien-Nan
AS 1:1;2:1;3:2;4:3;
FF 1:;2:;3:;4:;
C1 Natl Taiwan Univ, Dept Geosci, Taipei 10764, Taiwan.
   Natl Taiwan Normal Univ, Dept Earth Sci, Taipei, Taiwan.
   Acad Sinica, Inst Earth Sci, Taipei 115, Taiwan.
C2 UNIV NATL TAIWAN, TAIWAN
   NATL TAIWAN NORMAL UNIV, TAIWAN
   ACAD SINICA, TAIWAN
IF 0.594
TC 3
UR https://archimer.ifremer.fr/doc/00237/34814/33678.pdf
LA English
DT Article
CR IMAGES 3-IPHIS-MD106
   MD 122 / WEPAMA
BO Marion Dufresne
DE ;age model;oxygen isotope stratigraphy;Quaternary;Banda Sea
AB A detailed oxygen isotope time-scale based on planktonic foraminifera Globigerinoides sacculifer at site MD012380 in the Banda Sea was established for the past 820 kyrs by correlating the record to the astronomically tuned benthic oxygen isotope chronology of MD972143. Ages for marine isotope stratigraphic (MIS) events from 2.0 back to 21.1 were designated for this western tropical Pacific record. Spectral analysis of the 6180 time-series reveals distinct periodicities of 100, 41, and 23 kyrs, indicating strong orbital forcing, yet the power of each band varies through time. The time-series of three other paleo-proxies, namely, coarse fraction (CF), lightness of sediments and delta C-13 of Globigerinoides saccidifer, were subjected to cross-spectral analyses against the oxygen isotope record. The Mid-Brunhes (MIS 13 - 10, 535 - 333 ka) divides the record into two time domains characterized by different spectral behaviors. Before the Mid-Brunhes, the analyzed proxies show relatively stronger powers at the 41-kyr band, and the coherence among various proxies is relatively high. After the Mid-Brunhes, 100-kyr periodicity becomes to dominate the delta O-18 and coarse fraction records while coherence among the various proxies becomes weaker. The spectral behaviors of the various paleo-proxies appear to vary through the late Quaternary and are fundamentally changed by the Mid-Brunhes event, suggesting the existence of an ever changing, internally complicated system of the Banda Sea under the influence of orbital forcing during the last 820 kyrs.
PY 2008
PD AUG
SO Terrestrial Atmospheric And Oceanic Sciences
SN 1017-0839
PU Chinese Geoscience Union
VL 19
IS 4
UT 000259547000002
BP 331
EP 339
DI 10.3319/TAO.2008.19.4.331(IMAGES)
ID 34814
ER

EF