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陨硫钙石(CaS)通常被认为是由太阳星云气凝结而成。顽火辉石陨石是陨硫钙石最重要的储存库之一,也是最还原的一类陨石,其是形成早期地球的代表性物质。因此,陨硫钙石对深入了解太阳星云、陨石、地球起源和地球的C-O-S-Ca循环具有重要意义。
在海洋同位素均衡中,地下水输入的溶质通量长久以来被认为是不变的,且经常被忽视,即使不能完全忽视,也将这一部分归于河流输入的通量。由于缺乏对地下水排泄溶质通量的约束,海洋同位素δ7Li、δ26Mg、δ44/42Ca、87Sr/86Sr、δ88/86Sr和δ138Ba的均衡和依赖它们的准确性建立的地球系统模型存在巨大不确定性。
Migration history of an ariid Indian catfish reconstructed by otolith Sr/Ca and d18O micro-analysis
otolith oxygen isotope carbon isotope Sr/Ca Ba/Ca
2017/4/10
Understanding catfish ecology is important because catfish constitute one of the largest fish stocks in the coastal IndoPacific
regions. Recent technological advances have enabled the use of biologic...
Factors controlling the geochemical composition of Limnopolar Lake sediments (Byers Peninsula, Livingston Island, South Shetland Island, Antarctica) during the last ca. 1600 years
Lake sediments Limnopolar high resolution element analysis mineral composition energy dispersive x ray spectrometer glass mineral particles
2015/1/6
We sampled a short (57 cm) sediment core in Limnopolar Lake (Byers Peninsula, Livingston Island, South Shetland Islands), which spans the last ca. 1600 years. The core was sectioned at high resolution...