干旱区生态环境知识资源中心(Arid): Prospecting Glacial Ages and Paleoclimatic Reconstructions Northeastward of Nevado Coropuna (16 degrees S, 73 degrees W, 6377 m), Arid Tropical Andes

Arid

DOI	10.3390/geosciences8080307
	Prospecting Glacial Ages and Paleoclimatic Reconstructions Northeastward of Nevado Coropuna (16 degrees S, 73 degrees W, 6377 m), Arid Tropical Andes
	Ubeda, Jose; Bonshoms, Marti; Iparraguirre, Joshua; Saez, Lucia; de la Fuente, Ramon; Janssen, Lila; Concha, Ronald; Vasquez, Pool; Masias, Pablo
通讯作者	Ubeda, J
来源期刊	GEOSCIENCES
EISSN	2076-3263
出版年	2018
卷号	8 期号:8
英文摘要	This work investigates the timing, paleoclimatic framework and inter-hemispheric teleconnections inferred from the glaciers last maximum extension and the deglaciation onset in the Arid Tropical Andes. A study area was selected to the northeastward of the Nevado Coropuna, the volcano currently covered by the largest tropical glacier on Earth. The current glacier extent, the moraines deposited in the past and paleoglaciers at their maximum extension have been mapped. The present and past Equilibrium Line Altitudes (ELA and paleoELA) have been reconstructed and the chlorine-36 ages have been calculated, for preliminary absolute dating of glacial and volcanic processes. The paleoELA depression, the thermometers installed in the study area and the accumulation data previously published allowed development of paleotemperature and paleoprecipitation models. The Coropuna glaciers were in maximum extension (or glacial standstill) similar to 20-12 ka ago (and maybe earlier). This last maximum extension was contemporary to the Heinrich 2-1 and Younger Dryas events and the Tauca and Coipasa paleolake transgressions on Bolivian Altiplano. The maximum paleoELA depression (991 m) shows a colder (-6.4 degrees C) and moister climate with precipitation x1.2-x2.8 higher than the present. The deglaciation onset in the Arid Tropical Andes was 15-11 ka ago, earlier in the most southern, arid, and low mountains and later in the northernmost, less arid, and higher mountains.
英文关键词	Coropuna Arid Tropical Andes cosmogenic dating ELA paleoclimatic reconstructions ITCZ
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000443254500037
WOS关键词	EQUILIBRIUM-LINE ALTITUDES ; QUELCCAYA ICE CAP ; INTERTROPICAL CONVERGENCE ZONE ; SOUTHERN PERUVIAN ANDES ; EXPOSURE AGES ; PLEISTOCENE GLACIATION ; PRECIPITATION CHANGES ; COSMOGENIC CL-36 ; PRODUCTION-RATES ; ATLANTIC-OCEAN
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
Scopus学科分类	Univ Complutense Madrid, Dept Geog, Grp Invest Geog Fis Alta Montana, E-28040 Madrid, Spain. ; Ubeda, J
CSCD记录号	CSCD:Guias Espeleol & Montana Speleol & Mt Guides, Madrid 28189, Spain.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332975
作者单位	[Ubeda, Jose; Iparraguirre, Joshua; Concha, Ronald; Vasquez, Pool; Masias, Pablo] Inst Geol Minero & Met, Av Canada 1470, San Borja 15034, Peru; [Ubeda, Jose; Bonshoms, Marti] Univ Complutense Madrid, Dept Geog, Grp Invest Geog Fis Alta Montana, E-28040 Madrid, Spain; [Ubeda, Jose; Saez, Lucia; de la Fuente, Ramon; Janssen, Lila] Guias Espeleol & Montana Speleol & Mt Guides, Madrid 28189, Spain
推荐引用方式 GB/T 7714	Ubeda, Jose,Bonshoms, Marti,Iparraguirre, Joshua,et al. Prospecting Glacial Ages and Paleoclimatic Reconstructions Northeastward of Nevado Coropuna (16 degrees S, 73 degrees W, 6377 m), Arid Tropical Andes[J],2018,8(8).
APA	Ubeda, Jose.,Bonshoms, Marti.,Iparraguirre, Joshua.,Saez, Lucia.,de la Fuente, Ramon.,...&Masias, Pablo.(2018).Prospecting Glacial Ages and Paleoclimatic Reconstructions Northeastward of Nevado Coropuna (16 degrees S, 73 degrees W, 6377 m), Arid Tropical Andes.GEOSCIENCES,8(8).
MLA	Ubeda, Jose,et al."Prospecting Glacial Ages and Paleoclimatic Reconstructions Northeastward of Nevado Coropuna (16 degrees S, 73 degrees W, 6377 m), Arid Tropical Andes".GEOSCIENCES 8.8(2018).