气候变化领域集成服务门户(CCPortal): C-14 DATING OF HOLOCENE SOILS FROM AN ISLAND IN LAKE PUMOYUM CO (SOUTHEASTERN TIBETAN PLATEAU)

CCPortal

DOI	10.1017/S003382220004652X
	C-14 DATING OF HOLOCENE SOILS FROM AN ISLAND IN LAKE PUMOYUM CO (SOUTHEASTERN TIBETAN PLATEAU)
	Watanabe, Takahiro; Matsunaka, Tetsuya; Nakamura, Toshio; Nishimura, Mitsugu; Sakai, Takahiro; Lin, Xiao; Horiuchi, Kazuho; Nara, Fumiko Watanabe; Kakegawa, Takeshi; Zhu, Liping
通讯作者	Watanabe, T (通讯作者)
发表日期	2010
ISSN	0033-8222
起始页码	1443
结束页码	1448
卷号	52 期号:3
英文摘要	Soil samples from an 85-cm-long continuous section (PY608ES) were collected from an island in Lake Pumoyum Co (southeastern Tibetan Plateau, 5020 in as!) in August 2006. To estimate past environmental conditions of Lake Pumoyum Co during the Holocene, we analyzed radiocarbon ages, stable carbon isotope compositions, and total organic carbon/total nitrogen (TOC/TN) atomic ratios of the soil samples. The C-14 measurements were performed with the Tandetron accelerator mass spectrometry system at the Center for Chronological Research, Nagoya University. The C-14 concentration in the surface layer (101 pMC; 5-10 cm soil depth) was nearly modern. A C-14 chronology of the sequence indicated that continuous soil development began on the island in Lake Pumoyum Co at similar to 5800 cal BP (at 63 cm soil depth, the top of a gravel layer). These results may reflect a decrease in the lake level in the middle Holocene. The age of the obvious lithologic boundary (similar to 5800 cal BP) corresponds to the end of Holocene climate optimum.
关键词	ASIAN MONSOON EAST-ASIA CHINA GLACIATION SEDIMENTS ISOTOPES CARBON
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000285437900060
来源期刊	RADIOCARBON
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257833
推荐引用方式 GB/T 7714	Watanabe, Takahiro,Matsunaka, Tetsuya,Nakamura, Toshio,et al. C-14 DATING OF HOLOCENE SOILS FROM AN ISLAND IN LAKE PUMOYUM CO (SOUTHEASTERN TIBETAN PLATEAU)[J]. 中国科学院青藏高原研究所,2010,52(3).
APA	Watanabe, Takahiro.,Matsunaka, Tetsuya.,Nakamura, Toshio.,Nishimura, Mitsugu.,Sakai, Takahiro.,...&Zhu, Liping.(2010).C-14 DATING OF HOLOCENE SOILS FROM AN ISLAND IN LAKE PUMOYUM CO (SOUTHEASTERN TIBETAN PLATEAU).RADIOCARBON,52(3).
MLA	Watanabe, Takahiro,et al."C-14 DATING OF HOLOCENE SOILS FROM AN ISLAND IN LAKE PUMOYUM CO (SOUTHEASTERN TIBETAN PLATEAU)".RADIOCARBON 52.3(2010).