Patagonian and southern South Atlantic view of Holocene climate

Kaplan, M.R.; Schaefer, J.M.; Strelin, J.A.; Denton, G.H.; Anderson, R.F.; Vandergoes, M.J.; Finkel, R.C.; Schwartz, R.; Travis, S.G.; Garcia, J.L.; Martini, M.A.; Nielsen, S.H.H.

doi:10.1016/j.quascirev.2016.03.014

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Patagonian and southern South Atlantic view of Holocene climate

2016
By Kaplan, M.R. ; Schaefer, J.M. ; Strelin, J.A. ; ...
Source: Quaternary Science Reviews, 141, 112-125

[PDF-4.65 MB]

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Journal Title:

Quaternary Science Reviews
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Kaplan, M.R. ; Schaefer, J.M. ; Strelin, J.A. ; Denton, G.H. ; Anderson, R.F. ; ... More +

Kaplan, M.R. ; Schaefer, J.M. ; Strelin, J.A. ; Denton, G.H. ; Anderson, R.F. ; Vandergoes, M.J. ; Finkel, R.C. ; Schwartz, R. ; Travis, S.G. ; Garcia, J.L. ; Martini, M.A. ; Nielsen, S.H.H. Less -
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We present a comprehensive 10Be chronology for Holocene moraines in the Lago Argentino basin, on the east side of the South Patagonian Icefield. We focus on three different areas, where prior studies show ample glacier moraine records exist because they were formed by outlet glaciers sensitive to climate change. The 10Be dated records are from the Lago Pearson, Herminita Península-Brazo Upsala, and Lago Frías areas, which span a distance of almost 100 km adjacent to the modern Icefield. New 10Be ages show that expanded glaciers and moraine building events occurred at least at 6120 ± 390 (n = 13), 4450 ± 220 (n = 7), 1450 or 1410 ± 110 (n = 18), 360 ± 30 (n = 5), and 240 ± 20 (n = 8) years ago. Furthermore, other less well-dated glacier expansions of the Upsala Glacier occurred between ~1400 and ∼1000 and ∼2300 and ∼2000 years ago. The most extensive glaciers occurred over the interval from ∼6100 to ∼4500 years ago, and their margins over the last ∼600 years were well within and lower than those in the middle Holocene. The 10Be ages agree with 14C-limiting data for the glacier histories in this area.
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Archeology Ecology, Evolution, Behavior And Systematics Geology Global And Planetary Change
Source:

Quaternary Science Reviews, 141, 112-125
DOI:

https://doi.org/10.1016/j.quascirev.2016.03.014
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0277-3791
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PDF
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Elsevier BV
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Journal Article
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Accepted Manuscript
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urn:sha256:553f70b85a072378906b85b868c308bc1edd0a4260ab22ffa2ed000ed48f0190
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Patagonian and southern South Atlantic view of Holocene climate

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