干旱区生态环境知识资源中心(Arid): The sedimentary evolution of Da Qaidam Salt Lake in Qaidam Basin, northern Tibetan Plateau: implications for hydro-climate change and the formation of pinnoite deposit

Arid

DOI	10.1007/s12665-019-8480-0
	The sedimentary evolution of Da Qaidam Salt Lake in Qaidam Basin, northern Tibetan Plateau: implications for hydro-climate change and the formation of pinnoite deposit
	Gao, Chunliang 1,2; Yu, Junqing 1,2; Min, Xiuyun 1,3; Cheng, Aiying 1,2; Hong, Rongchang 1,3; Zhang, Lisha 1,2; Li, Tingwei 1,2
通讯作者	Gao, Chunliang
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:15
英文摘要	Da Qaidam Salt Lake, northern Qaidam Basin, is known for its liquid and solid boron resource. More than that, pinnoite-bearing sediments, occurring in this lake, are rare in the world. However, little attention has been paid to the hydro-climate change and brine evolution correlation with the formation of pinnoite deposit. According to the multi-proxy records, as well as AMS C-14 dating, the sediment profiles DCD02 and DCD03 from Da Qaidam Salt Lake were studied. The results revealed that the ore-forming age of three pinnoite deposits are 7.83-8.62calka BP, 6.74-7.07calka BP and 4.66-5.41calka BP. The sedimentary evolution of Da Qaidam Salt Lake along with the pinnoite formation during the past 13,000years can be divided into four stages, i.e., (1) relatively fresh and deep paleo-lake with low salinity during 12.98-9.00calka BP; (2) seasonal variations between fresh and brackish paleo-lake during 9.00-8.62calka BP; (3) salt lake stage with relatively high salinity and alkalinity during 8.62-4.66calka BP, and (4) relatively shallow lake with high salinity since 4.66calka BP. Under favorable sedimentologic and hydrogeochemical conditions, a series of boron deposits including pinnoite ore formed in different zones of Da Qaidam Salt Lake due to the different ore-forming mechanisms. Finally, under the differential effect of climate warming condition between the high mountain catchments and arid basin, the boron ore-forming model was established as a higher mountain-lower basin-shallower water model.
英文关键词	Pinnoite deposit Hydro-climate change Mineralogical records Sedimentary evolution Da Qaidam Salt Lake Qaidam Basin Tibetan Plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000477034900004
WOS关键词	BORATE DEPOSITS ; CARBONATE ; MIOCENE ; CHINA ; BRINE ; GEOCHEMISTRY ; IGNITION ; QINGHAI ; AREA
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215427
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China; 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Qinghai Prov Key Lab Geol & Environm Salt Lakes, Xining 810008, Qinghai, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gao, Chunliang,Yu, Junqing,Min, Xiuyun,et al. The sedimentary evolution of Da Qaidam Salt Lake in Qaidam Basin, northern Tibetan Plateau: implications for hydro-climate change and the formation of pinnoite deposit[J],2019,78(15).
APA	Gao, Chunliang.,Yu, Junqing.,Min, Xiuyun.,Cheng, Aiying.,Hong, Rongchang.,...&Li, Tingwei.(2019).The sedimentary evolution of Da Qaidam Salt Lake in Qaidam Basin, northern Tibetan Plateau: implications for hydro-climate change and the formation of pinnoite deposit.ENVIRONMENTAL EARTH SCIENCES,78(15).
MLA	Gao, Chunliang,et al."The sedimentary evolution of Da Qaidam Salt Lake in Qaidam Basin, northern Tibetan Plateau: implications for hydro-climate change and the formation of pinnoite deposit".ENVIRONMENTAL EARTH SCIENCES 78.15(2019).