全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:ShuGuang Li , YongSheng He , ShuiJiong Wang
来源:[J].Chinese Science Bulletin(IF 1.319), 2013, Vol.58 (35), pp.4411-4417Springer
摘要:Abstract(#br)Systematical studies of post-collisional igneous rocks in the Dabie orogen suggest that the thickened mafic lower crust of the orogen was partially melted to form low-Mg # adakitic rocks at 143-131 Ma. Delamination and foundering of the thickened mafic lower crust o...
作者:Sampa Hazra , Jyotisankar Ray , C Manikyamba ...
来源:[J].Journal of Earth System Science(IF 0.695), 2015, Vol.124 (2), pp.459-475Springer
摘要:Abstract(#br)The mafic rocks of east Khasi Hills of the Meghalaya Plateau, northeastern India, occur as an intrusive body which cut across the weakly metamorphosed Shillong Group of rocks. Other than Shillong Group of rocks, high grade Archaean gneissic rocks and younger porphyr...
作者:Taiping Zhao , Mingguo Zhai , Bin Xia ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2004, Vol.49 (23), pp.2495-2502Springer
摘要:Abstract(#br)The volcanic rocks of the Xiong’er Group occur widely in the southern part of the North China Craton, which mark the beginning of the cover in the southern part of the North China Craton. The age of the volcanic rocks is thus crucial to understand the tectonic r...
作者:Jun Yan , HaiQuan Liu , ChuanZhong Song ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2009, Vol.54 (16), pp.2895-2904Springer
摘要:Abstract(#br)The latest eruptions in two important Mesozoic volcanic basins of Fanchang and Ningwu located in the middle-lower reaches of the Yangtze River formed the bimodal volcanic rocks of the Kedoushan Formation and ultrapotassic volcanic rocks of the Niangniangshan Formati...
作者:Shixin Zhou , Xianren Ye
来源:[J].Chinese Science Bulletin(IF 1.319), 2002, Vol.47 (9), pp.774-778Springer
摘要:Abstract(#br)Abundances and isotopic compositions of noble gases (He, Ne, Ar, Kr) with various existence states in carbonate rocks from the Tacan1 Well have been investigated by means of the stepwise heating technique. The elemental abundance patterns of noble gases in the s...
作者:Jiansheng Qiu , Xisheng Xu , Ching-Hua Lo
来源:[J].Chinese Science Bulletin(IF 1.319), 2002, Vol.47 (2), pp.91-99Springer
摘要:Abstract(#br)Highly precise 40 Ar- 39 Ar dating results demonstrate that the ages of potash-rich volcanic rocks in western Shandong Province are 114.7–124.3 Ma, and that of the lamprophyres is 119.6 Ma. The potash-rich volcanic rocks have relatively high ( 87 Sr÷ 86 Sr) i ...
作者:Caifu Xie , Jinchu Zhu , Shijiang Ding ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2006, Vol.51 (20), pp.2507-2519Springer
摘要:Abstract(#br)An identification has been made of some shoshonitic intrusive rocks in central Hainan Island recently. These rocks are K-rich (K 2 O=2.9%–5.1%, K 2 O/Na 2 O=0.95–2.12), distinctly enriched in LILE and LREE, strongly depleted in Nb, Ta, and moderately depleted...
作者:Bin Zhang , Zhe Zhao , ShuiChang Zhang ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2007, Vol.52 (1), pp.141-149Springer
摘要:Abstract(#br)Taking marine source rocks of lower Paleozoic in the Tarim Basin and Paleozoic ones in the Sichuan Basin as examples, their sedimentation process could be classified into four styles: continuous subsidence with deep sedimentation in early stage, continuous subsidence...
作者:Xianhua Li , Hanwen Zhou , Shijiang Ding ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2000, Vol.45 (10), pp.956-960Springer
摘要:Abstract(#br)A number of metamorphosed mafic rocks occurred within the Paleozoic strata in the Chenxing and Bangxi regions at the northern side of the Changjiang-Qionghai Fault in Central Hainan Island. These metamorphosed mafic rocks are tholeiites in chemistry. They are charact...
作者:Shuguang Li , Wei Yang
来源:[J].Chinese Science Bulletin(IF 1.319), 2003, Vol.48 (8), pp.831-838Springer
摘要:Abstract(#br)There are significant differences of Nd and Pb isotopic compositions between Mesozoic mafic igneous rocks from the North China Block (NCB) and the South China Block (SCB). Mesozoic mantle-derived igneous rocks from the North China Block have very low ɛ Nd values (...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×