Reconstructing the paleohydrology of a cretaceous Alaskan paleopolar coastal plain from stable isotopes of bivalves
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- 作者：Celina A. Suareza ; casuarez@uark.edu" class="auth_mail" title="E-mail the corresponding author ; Peter P. Flaigb ; Gregory A. Ludvigsonc ; Luis A. Gonzá ; lezd ; Ryan Tiane ; Huajun Zhoue ; Paul J. McCarthyf ; Dolores A. Van der Kolkb ; Anthony R. Fiorillog
- 关键词：Paleontology ; Geochemistry ; X-ray diffraction ; Terrestrial ecosystem ; High-latitude
- 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
- 出版年：2016
- 出版时间：1 January 2016
- 年：2016
- 卷：441
- 期：part_P2
- 页码：339-351
- 全文大小：2896 K
文摘
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Nucula percrassa from the Cretaceous Prince Creek Fm. was analyzed for C, O-isotopes.
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Data from the Alaskan bivalve suggests salinity of water was between 8 and 17.7 ppt.
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Isotopic composition of water ranged between − 14.41 and − 16.23‰ V-SMOW.
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Based on new and published data, fresh:marine water ranged from ~ 50:50 to 72:28%.
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High latitude ancient Arctic greenhouse climate was highly variable.