کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5755936 1622121 2017 41 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Paleosol-based paleoclimate reconstruction of the Paleocene-Eocene Thermal Maximum, northern Argentina
ترجمه فارسی عنوان
بازسازی پائول کلمتر پالئوسول بر اساس حداکثر حرارتی پالئوسن-ائوسن، شمال آرژانتین
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
In this study, paleosols in the Salta Basin, northern Argentina, are used to reconstruct paleoprecipitation rates and mean annual paleotemperatures of the Southern Hemisphere from before, during and after the PETM. Carbon isotope data are used to: 1) identify the horizon in which the PETM and other Eocene hyperthermals are recorded; and, 2) to interpret perturbations of the global carbon cycle during the PETM. At the height of the PETM, paleoprecipitation proxies indicate ~ 1500 mm of annual rainfall and a temperature increase of ~ 5 °C from pre-PETM values. Carbon isotope data records three negative carbon isotope excursions during the PETM in this region, suggesting the possibility of three distinct, rapid releases of isotopically depleted carbon into the ocean-atmosphere system. The results presented here are one of only a few paleoclimate reconstructions from continental sediments spanning the PETM in the Southern Hemisphere.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeogeography, Palaeoclimatology, Palaeoecology - Volume 471, 1 April 2017, Pages 181-195
نویسندگان
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