Evidence for the 8,200 a BP cooling event in the middle Okinawa Trough
|Author(s)||Yu H1, Xiong Y2, Liu Z3, Berne Serge4, Huang C5, Jia G6|
|Affiliation(s)||1 : Rice Univ, Dept Earth Sci, Houston, TX 77005 USA.
2 : Univ Houston, Dept Geosci, Houston, TX 77204 USA.
3 : SOA, Inst Oceanog 1, Marine Geol Div, Qingdao, Peoples R China.
4 : IFREMER, F-29280 Plouzane, France.
5 : Natl Cheng Kung Univ, Dept Earth Sci, Tainan 701, Taiwan.
6 : Chinese Acad Sci, Guangzhou Inst Geochem, Ghangzhou 510640, Peoples R China.
|Source||Geo-Marine Letters (0276-0460) (Springer), 2008-06 , Vol. 28 , N. 3 , P. 131-136|
|WOS© Times Cited||19|
|Abstract||Based on new and existing data on oxygen isotopes, alkenone-surface seawater temperature trends, planktonic foraminifers, lithology, and clay mineral composition of piston cores, a distinct cooling event has been identified around 8,200 cal a B.P. in the middle Okinawa Trough, northwest Pacific. This corresponds to the 8,200 a B.P. cooling event recorded in many places of the Northern Hemisphere. During this event, the local temperature decreased by 1 degrees C, and the delta O-18 value increased by 0.6%omicron. A strengthened Asian winter monsoon is the most probable cause for this event, which thus adds further credibility to the contention that we are dealing here with a global phenomenon.|