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Volumn 308, Issue 5722, 2005, Pages 678-681

Climate change: Early local last glacial maximum in the tropical Andes

Author keywords

[No Author keywords available]

Indexed keywords

ARID REGIONS; ATMOSPHERIC TEMPERATURE; CLIMATE CHANGE; ICE; MARINE ENGINEERING; TROPICAL ENGINEERING;

EID: 17844367578     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1107075     Document Type: Article
Times cited : (150)

References (33)
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    • note
    • 10Be data, and calculations are available as supporting material on Science Online.
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    • note
    • On the lowest lateral moraine (∼3400 masl), the exposure ages of boulders of the same lithology as the adjacent bedrock (granite) are young (∼3 to 12 ky B.P.), whereas those of erratic lithologies (schist/ quartzite) are late glacial (∼15 to 17 kj B.P.). suggesting a localized rockfall component of the boulder population. This was not noted at other sampling locations.
  • 20
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    • note
    • The presence of boulders with a span of exposure ages (∼34 to 22 ky B.P.) on the LLCM moraines may mean that glacier termini remained close to their maxima for up to ∼12,000 years or fluctuated, building composite moraines. It is also possible that younger ages represent the effects of boulder exhumation, movement, or differential boulder erosion.
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    • note
    • We acknowledge financial and/or material support from the National Geographic Society (grant 7188-02), Lawrence Livermore National Laboratory, the Geological Society of America, Union College, Syracuse University, and NSF (grant ATM-0081517). We are grateful to two anonymous reviewers whose comments and suggestions substantially improved the manuscript. We dedicate this report to the memory of our coauthor, colleague, and friend, Geoff Seltzer, who was an integral part of the project from beginning to end.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.