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Sea surface temperature proxies (alkenones, foraminiferal Mg/Ca, and planktonic foraminiferal assemblage) and their implications in the Okinawa Trough ArchiMer
Kim, Ryoung Ah; Lee, Kyung Eun; Bae, Si Woong.
We reviewed three sea surface temperature (SST) proxies in the Okinawa Trough (OT): alkenones, planktonic foraminiferal Mg/Ca, and planktonic foraminiferal assemblages. The seasonal and vertical distribution patterns of each proxy-related organism in the water column were reviewed to confirm the applicability of each proxy. In addition, current SSTs (Japan Oceanographic Data Center dataset from 1906 to 2003) were compared with core-top sediment temperatures reconstructed using the proxies. Temperatures calculated using the alkenone unsaturation index represent annual mean SSTs, and temperatures calculated using Mg/Ca of Globigerinoides ruber capture summer to autumn (June-November) SSTs. Core-top August SSTs calculated from planktonic foraminiferal...
Tipo: Text Palavras-chave: Sea surface temperature; Okinawa Trough; Alkenone; Planktonic foraminiferal Mg/Ca ratio; Planktonic foraminiferal assemblages.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00353/46417/46156.pdf
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