کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6445819 | 1640808 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Late Quaternary relative sea level in Southern California and Monterey Bay
ترجمه فارسی عنوان
سطح دریا در اواخر کواترنری در جنوب کالیفرنیا و خلیج مونتری
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کلمات کلیدی
هولوسن، تنظیم انعطاف پذیری یخبندان، افزایش تکتونیکی، اقیانوس آرام شمال امریکا،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Few records of late Quaternary relative sea level (RSL) are available for the Pacific coast of North America south of San Francisco Bay, a region where RSL data would be particularly useful for constraining vertical rates of tectonic motion. This paper provides the first regional, uplift-corrected late Quaternary RSL history for southern California derived from a compilation of 132 previously published and unpublished radiocarbon ages from nearshore, estuarine, and freshwater deposits in sediment cores from coastal southern California. We also provide a local, uplift-corrected RSL history for Monterey Bay, central California, generated from 48 radiocarbon ages from Elkhorn Slough and surrounding environments. Our resulting compilations show rapid sea-level rise from 15 ka which begins to decelerate to present mean sea level (PMSL) between 6 and 8 ka. Late Holocene (<4 ka) sea-level rise averaged 0.8 ± 0.3 mm aâ1 in southern California and 1.3 ± 0.19 mm aâ1 along Monterey Bay in central California. Both rates of late Holocene RSL rise calculated are lower than recent RSL rates from southern California (â¼1.61 ± 0.34 to 2.4 ± 1.04 mm aâ1) and Monterey Bay (1.49 ± 0.95 mm aâ1), derived from uplift-corrected, 20th century tide gauge data. This new RSL data fills geographical gaps in relative sea-level histories, as well as provides important datums for local tectonic processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary Science Reviews - Volume 126, 15 October 2015, Pages 57-66
Journal: Quaternary Science Reviews - Volume 126, 15 October 2015, Pages 57-66
نویسندگان
Laura C. Reynolds, Alexander R. Simms,