搜索结果: 1-9 共查到“理学 Early Cretaceous”相关记录9条 . 查询时间(0.125 秒)
New plants of Gnetales from Early Cretaceous of China, and its bearing on the early evolution of Ephedraceae and Welwitschiaceae in Gnetales
Early Cretaceous north China Spinobractea Latibractea Constrobilus
2014/1/16
The Gnetales are a higher group of Gymnosperms, but our current knowledge of the morphology of the early Gnetales is lacking. Most known specimens are fragmentary, which makes it difficult to elucidat...
Petrological vestiges of the Late Jurassic–Early Cretaceous transition from rift to back-arc basin in southernmost Chile: New age and geochemical data from the Capitán Aracena, Carlos III, and Tortuga ophiolitic complexes
Rocas Verdes ophiolites rift to back-arc basin transition U–Pb dating geochemistry mineral chemistry microbes
2017/4/11
The ophiolitic remnants of the Upper Mesozoic Rocas Verdes basin in southernmost South America were studied from
the perspectives of petrography, chemistry of minerals, bulk-rock geochemistry, and U–...
Petrogenesis of Early Cretaceous silicic volcanism in SE Uruguay: The role of mantle and crustal sources
Uruguay Paraná-Etendeka rhyolite lower crust crustal contamination
2017/8/9
Early Cretaceous (~129 Ma) silicic rocks crop out in SE Uruguay between the Laguna Merín and Santa Lucía basins in the Lascano, Sierra São Miguel, Salamanca and Minas areas. They are mostly rhyol...
New basal eutherian mammal from the Early Cretaceous Jeholbiota, Liaoning, China
Early Cretaceous mammal eutherian Jehol biota septomaxilla therian dentition
2014/3/26
A new genus and species of eutherian mammal, Acristatherium yanensis gen. et sp. nov., is described from
the Early Cretaceous Jehol biota, China. The new taxon is based on a partial skull that is pre...
Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning, Northeast China
Early Cretaceous Gnetum affinity male spike strobiles Northeast China Yixian Formation
2009/8/4
A fossil with Gnetum affinity was found in the Jianshangou Member (Barremian Age) of the Yixian Formation (Lower Cretaceous Epoch) of the Jehol Group in western Liaoning, northeastern China. The singl...
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...
期刊信息
篇名
Description of a new fossil genus and species Huaxiasciophilites jingxiensis from Early Cretaceous Jingxi basin of Beijing, China (Diptera: Mesosciophilidae)
语种
英文
撰写或编译
作者
Zhang Zhijun, Hong ...
期刊信息
篇名
New Early Cretaceous paleomagnetic data from volcanic and red beds of the eastern Qaidam Block and its implications for tectonics of Central Asia.
语种
英文
撰写或编译
撰写
作者
2.Sun,Z.,Yang,Z.,Pei,J.,Yan...
期刊信息
篇名
New Early Cretaceous paleomagnetic results from the Qilian orogenic belt and its tectonic implications
语种
英文
撰写或编译
撰写
作者
Yang,T.,Yang,Z.,Sun,Z.,Lin,A
第一作者单位
刊物名称
Science in China, 中国科学,
页面
45(...