Cooling of the South China Sea by the Toba eruption and correlation with other climate proxies ∼71,000 years ago

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doi: 10.1029/2000GL006113
Author(s): Huang, Chi-Yue; Zhao, Meixun; Wang, Chia-Chun; Wei Ganjian
Author Affiliation(s): Primary:
National Chengkung University, Department of Earth Sciences, Tainan, Taiwan
Other:
Dartmouth College, United States
National Taiwan University, Taiwan
Academia Sinica, China
Volume Title: Geophysical Research Letters
Source: Geophysical Research Letters, 28(20), p.3915-3918. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 CODEN: GPRLAJ
Note: In English. 21 refs.; illus., incl. geol. sketch map
Summary: The Toba tephra layer has been identified in core MD972151 in the southern South China Sea (SCS), northeast of the Indonesia Toba caldera. This affords us an opportunity to directly determine a 1°C cooling for ca.l kyr on the SCS following the Toba eruption (71 Ka) during the marine isotope stage 5a-4 transition, using century-scale sea surface temperature records. This cooling event in the SCS is well correlated with several coeval proxies such as increased East Asia winter monsoon intensity, increased ice-rafted detritus in the North Pacific Ocean sediments, and decreased δ18O in Greenland ice core. Such correlation suggests a climate change where cold climate signals originated in the Northern Hemisphere ice sheets, transferred southward by the winter monsoon, and cooled the SCS. Copyright 2001 by the American Geophysical Union.
Year of Publication: 2001
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Asia; Cenozoic; Climate change; Cooling; Cores; Correlation; Eruptions; Far East; Global; Indonesia; Isotope ratios; Isotopes; Leg 145; Monsoons; North Pacific; Northwest Pacific; O-18/O-16; ODP Site 882; Ocean Drilling Program; Oxygen; Pacific Ocean; Paleotemperature; Pleistocene; Quaternary; Sea-surface temperature; South China Sea; Stable isotopes; Sumatra; Toba Lake; Volcanoes; West Pacific
Coordinates: N502148 N502148 E1673600 E1673600
Record ID: 2002045464
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