搜索结果: 1-4 共查到“地球科学总论 isotopic compositions”相关记录4条 . 查询时间(0.058 秒)
Unusually negative nitrogen isotopic compositions (δ15N) of mangroves and lichens in an oligotrophic,microbially-influenced ecosystem
negative nitrogen isotopic compositions mangroves lichens microbially-influenced ecosystem
2010/1/18
Extremes in δ15N values in mangrove tissues and lichens (range =+4 to −22‰) were measured from a mangrove forest ecosystem located on Twin Cays, offshore islands in Belize, Central America. The ...
U-Pb zircon SHRIMP ages,geochemical and Sr-Nd isotopic compositions of the Early Cretaceous I-type Sarıosman pluton,Eastern Pontides,NE Turkey
SHRIMP dating Sarı osman pluton mineral chemistry I-type Sr-Nd isotope geochemistry eastern Pontides
2010/1/11
The petrogenesis and U-Pb SHRIMP zircon ages of the Late Cretaceous Sarıosman pluton in the Eastern Pontides is investigated by means of whole-rock Sr-Nd isotope data with field, petrographic and...
Reconstruction of the biogeochemistry and ecology of photoautotrophs based on the nitrogen and carbon isotopic compositions of vanadyl porphyrins from Miocene siliceous sediments
Reconstruction biogeochemistry ecology photoautotrophs isotopic compositions
2010/1/15
We determined both the nitrogen and carbon isotopic compositions of various vanadyl alkylporphyrins isolated from siliceous marine sediments of the Onnagawa Formation (middle Miocene, northeastern Jap...
期刊信息
篇名
U-Pb isotopic compositions of the ultrahighn pressure metamorphic (UHPM) rocks from Shuanghe and gneisses from Northern Dabie zone in the Dabie Mountains, central China: Constraint on the exhu...