کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10501251 | 944834 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Marine radiocarbon reservoir corrections (âR) for Chesapeake Bay and the Middle Atlantic Coast of North America
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
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چکیده انگلیسی
Radiocarbon dates from known age, pre-bomb eastern oyster (Crassostrea virginica) shells provide local marine reservoir corrections (âR) for Chesapeake Bay and the Middle Atlantic coastal area of eastern North America. These data suggest subregional variability in âR, ranging from 148 ± 46 14C yr on the Potomac River to â 109 ± 38 14C yr at Swan Point, Maryland. The âR weighted mean for the Chesapeake's Western Shore (129 ± 22 14C yr) is substantially higher than the Eastern Shore (â 88 ± 23 14C yr), with outer Atlantic Coast samples falling between these values (106 ± 46 and 2 ± 46 14C yr). These differences may result from a combination of factors, including 14C-depleted freshwater that enters the bay from some if its drainages, 14C-depleted seawater that enters the bay at its mouth, and/or biological carbon recycling. We advocate using different subregional âR corrections when calibrating 14C dates on aquatic specimens from the Chesapeake Bay and coastal Middle Atlantic region of North America.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary Research - Volume 77, Issue 1, January 2012, Pages 205-210
Journal: Quaternary Research - Volume 77, Issue 1, January 2012, Pages 205-210
نویسندگان
Torben C. Rick, Gregory A. Henkes, Darrin L. Lowery, Steven M. Colman, Brendan J. Culleton,