A broad deglacial delta C-13 minimum event in planktonic foraminiferal records in the Okinawa Trough

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	A broad deglacial delta C-13 minimum event in planktonic foraminiferal records in the Okinawa Trough
	Li, TG; Liu, ZX ; Hall, MA ; Saito, Y ; Berne, S ; Cang, SX ; Cheng, ZB
刊名	CHINESE SCIENCE BULLETIN
	2002-04-01
卷号	47 期号:7 页码:599-603
关键词	Planktonic Foraminiferal Delta C-13 Minimum Event Okinawa Trough Last Deglaciation
ISSN号	1001-6538
文献子类	Article
英文摘要	The equatorial Pacific upwelling zone has been suspected of playing an important role in the global atmospheric CO2 changes associated with glacial-interglacial cycles. In order to assess the influencing scope of the surface water deglacial delta(13)C minimum in the tropical low-latitude Pacific, the core DGKS9603, collected from the middle Okinawa Trough, was examined for 4513 C records of planktonic foraminifera N. dutertrei and G. ruber. The planktonic foraminiferal delta(13)C records show a clear decreasing event from 20 to 6 cal. kaBP., which is characterized by long duration of about 14 ka and amplitude shift of 0.4 x 10(-3). Its minimum value occurred at 15.7 cal kaBP. The event shows fairly synchrony with the surface water deglacial delta(13)C minimum identified in the tropical Pacific and its marginal seas. Because there is no evidence in planktonic foraminiferal fauna and 45180 records for upwelling and river runoff enhancement, the broad deglacial delta(13)C minimum event in planktonic foraminiferal records revealed in core DGKS9603 might have been the direct influencing result of the deglacial surface water of the tropical Pacific. The identification for the event in the Okinawa Trough provides new evidence that the water evolution in the tropical low-latitude Pacific plays a key role in large regional, even global carbon cycle.; The equatorial Pacific upwelling zone has been suspected of playing an important role in the global atmospheric CO2 changes associated with glacial-interglacial cycles. In order to assess the influencing scope of the surface water deglacial delta(13)C minimum in the tropical low-latitude Pacific, the core DGKS9603, collected from the middle Okinawa Trough, was examined for 4513 C records of planktonic foraminifera N. dutertrei and G. ruber. The planktonic foraminiferal delta(13)C records show a clear decreasing event from 20 to 6 cal. kaBP., which is characterized by long duration of about 14 ka and amplitude shift of 0.4 x 10(-3). Its minimum value occurred at 15.7 cal kaBP. The event shows fairly synchrony with the surface water deglacial delta(13)C minimum identified in the tropical Pacific and its marginal seas. Because there is no evidence in planktonic foraminiferal fauna and 45180 records for upwelling and river runoff enhancement, the broad deglacial delta(13)C minimum event in planktonic foraminiferal records revealed in core DGKS9603 might have been the direct influencing result of the deglacial surface water of the tropical Pacific. The identification for the event in the Okinawa Trough provides new evidence that the water evolution in the tropical low-latitude Pacific plays a key role in large regional, even global carbon cycle.
学科主题	Multidisciplinary Sciences
语种	英语
WOS记录号	WOS:000175219200018
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/3803]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266003, Peoples R China 3.Univ Cambridge, Godwin Inst Quaternary Res, Cambridge CB2 3RS, England 4.IFREMER, French Oceanog Inst, F-29280 Plouzane, France
推荐引用方式 GB/T 7714	Li, TG,Liu, ZX,Hall, MA,et al. A broad deglacial delta C-13 minimum event in planktonic foraminiferal records in the Okinawa Trough[J]. CHINESE SCIENCE BULLETIN,2002,47(7):599-603.
APA	Li, TG.,Liu, ZX.,Hall, MA.,Saito, Y.,Berne, S.,...&Cheng, ZB.(2002).A broad deglacial delta C-13 minimum event in planktonic foraminiferal records in the Okinawa Trough.CHINESE SCIENCE BULLETIN,47(7),599-603.
MLA	Li, TG,et al."A broad deglacial delta C-13 minimum event in planktonic foraminiferal records in the Okinawa Trough".CHINESE SCIENCE BULLETIN 47.7(2002):599-603.