FN Archimer Export Format
PT J
TI Intensified organic carbon burial on the Australian shelf after the Middle Pleistocene transition
BT 
AF Auer, Gerald
   Petrick, Benjamin
   Yoshimura, Toshihiro
   Mamo, Briony L.
   Reuning, Lars
   Takayanagi, Hideko
   De Vleeschouwer, David
   Martinez-Garcia, Alfredo
AS 1:1,2;2:3,4;3:2;4:5;5:4;6:6;7:7;8:3;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 University of Graz, Institute of Earth Sciences (Geology and Paleontology), NAWI Graz Geocenter, Heinrichstraße 26, 8010, Graz, Austria
   Research Institute for Marine Resources Utilization (Biogeochemistry Research Center), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima- cho, Yokosuka, Kanagawa, 237-0061, Japan
   Max Planck Institute for Chemistry, Climate Geochemistry Department, Hahn-Meitner-Weg 1, 55128, Mainz, Germany
   Kiel University, Institute for Geosciences, Ludewig-Meyn-Str. 10, 24118, Kiel, Germany
   Macquarie University, Department of Biological Sciences, North Ryde, 2109, NSW, Australia
   Institute of Geology and Paleontology, Tohoku University, Aobayama, Sendai, 980-8578, Japan
   MARUM-Center for Marine and Environmental Sciences, Klagenfurterstraße 2-4, Bremen, 28359, Germany
C2 UNIV GRAZ, AUSTRIA
   JAMSTEC, JAPAN
   MAX PLANCK INST CHEM, GERMANY
   UNIV KIEL, GERMANY
   MACQUARIE UNIVERSITY, AUSTRALIA
   UNIV TOHOKU, JAPAN
   UNIV BREMEN MARUM, GERMANY
IF 4.456
TC 14
UR https://archimer.ifremer.fr/doc/00696/80773/84095.pdf
   https://archimer.ifremer.fr/doc/00696/80773/84096.docx
   https://archimer.ifremer.fr/doc/00696/80773/84097.xlsx
LA English
DT Article
CR MD 119 / TIP 2000
BO Marion Dufresne
DE ;Middle pleistocene transition;Calcareous nannoplankton;Primary productivity;Organic carbon burial;Leeuwin current
AB The Middle Pleistocene Transition (MPT) represents a major change in Earth's climate state, exemplified by the switch from obliquity-dominated to ∼100-kyr glacial/interglacial cycles. To date, the causes of this significant change in Earth's climatic response to orbital forcing are not fully understood. Nonetheless, this transition represents an intrinsic shift in Earth's response to orbital forcing, without fundamental changes in the astronomical rhythms. This study presents new high-resolution records of International Ocean Discovery Program (IODP) Site U1460 (eastern Indian Ocean, 27°S), including shallow marine productivity and organic matter flux reconstructions. The proxy series covers the interval between 1.1 and 0.6 Ma and provides insights into Pleistocene Leeuwin Current dynamics along the West Australian shelf. The large >45 m global sea level drop during the marine isotope stage (MIS) 22–24 is marked in our data, suggesting that the MPT led to large-scale changes in Indian Ocean circulation patterns and surface water conditions. We consider shelf exposure (and thus the “Sahul-Indian Ocean Bjerknes mechanism”) as a possible key process to increase the upwelling of nutrient-rich sub-Antarctic Mode waters through the Leeuwin Undercurrent along the Australian shelf. We conclude that the shoaling of nutrient-rich lower-thermocline waters enhanced mid-latitude productivity patterns in the eastern Indian Ocean across the 900-ka event. 
PY 2021
PD JUL
SO Quaternary Science Reviews
SN 0277-3791
PU Elsevier BV
VL 262
UT 000663678900002
DI 10.1016/j.quascirev.2021.106965
ID 80773
ER

EF