气候变化领域集成服务门户(CCPortal): Late Holocene Glacial Fluctuations of Schiaparelli Glacier at Monte Sarmiento Massif, Tierra del Fuego (54 degrees 24 ' S)

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DOI	10.3390/geosciences9080340
	Late Holocene Glacial Fluctuations of Schiaparelli Glacier at Monte Sarmiento Massif, Tierra del Fuego (54 degrees 24 ' S)
	Meier, Wolfgang Jens-Henrik; Aravena, Juan-Carlos; Griessinger, Jussi; Hochreuther, Philipp; Soto-Rogel, Pamela; Zhu, Haifeng; De Pol-Holz, Ricardo; Schneider, Christoph; Braun, Matthias Holger
通讯作者	Meier, WJH (通讯作者)
发表日期	2019
EISSN	2076-3263
卷号	9 期号:8
英文摘要	The Magallanes-Tierra del Fuego region, Southern Patagonia (53-56 degrees S) features a plethora of fjords and remote and isolated islands, and hosts several thousand glaciers. The number of investigated glaciers with respect to the multiple Neoglacial advances is based on a few individual studies and is still fragmentary, which complicates the interpretation of the glacial dynamics in the southernmost part of America. Schiaparelli Glacier (54 degrees 24 ' S, 70 degrees 50 ' W), located at the western side of the Cordillera Darwin, was selected for tree-ring-based and radiocarbon dating of the glacial deposits. One focus of the study was to address to the potential dating uncertainties that arise by the use of Nothofagus spp. as a pioneer species. A robust analysis of the age-height relationship, missing the pith of the tree (pith offset), and site-specific ecesis time revealed a total uncertainty value of +/- 5-9 years. Three adjacent terminal moraines were identified, which increasingly tapered towards the glacier, with oldest deposition dates of 1749 +/- 5 CE, 1789 +/- 5 CE, and 1867 +/- 5 CE. Radiocarbon dates of trunks incorporated within the terminal moraine system indicate at least three phases of cumulative glacial activity within the last 2300 years that coincide with the Neoglacial phases of the Southern Patagonian Icefield and adjacent mountain glaciers. The sub-recent trunks revealed the first evidence of a Neoglacial advance between similar to 600 BCE and 100 CE, which so far has not been substantiated in the Magallanes-Tierra del Fuego region.
关键词	SOUTHERN ANNULAR MODE NORTH PATAGONIAN ICEFIELD GRAN CAMPO NEVADO TREE-RING ICE-AGE TEMPERATURE VARIABILITY CORDILLERA DARWIN PALEOENVIRONMENTAL CHANGE ANTARCTIC OSCILLATION NOTHOFAGUS-BETULOIDES
英文关键词	Southern Patagonia; Moraine Dating; Little Ice Age; Dendrochronology; Glacier Fluctuations; Ecesis Time; Pith Offset; Neoglacial; Late Holocene
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000482981000036
来源期刊	GEOSCIENCES
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/259513
推荐引用方式 GB/T 7714	Meier, Wolfgang Jens-Henrik,Aravena, Juan-Carlos,Griessinger, Jussi,et al. Late Holocene Glacial Fluctuations of Schiaparelli Glacier at Monte Sarmiento Massif, Tierra del Fuego (54 degrees 24 ' S)[J]. 中国科学院青藏高原研究所,2019,9(8).
APA	Meier, Wolfgang Jens-Henrik.,Aravena, Juan-Carlos.,Griessinger, Jussi.,Hochreuther, Philipp.,Soto-Rogel, Pamela.,...&Braun, Matthias Holger.(2019).Late Holocene Glacial Fluctuations of Schiaparelli Glacier at Monte Sarmiento Massif, Tierra del Fuego (54 degrees 24 ' S).GEOSCIENCES,9(8).
MLA	Meier, Wolfgang Jens-Henrik,et al."Late Holocene Glacial Fluctuations of Schiaparelli Glacier at Monte Sarmiento Massif, Tierra del Fuego (54 degrees 24 ' S)".GEOSCIENCES 9.8(2019).