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
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作者:DunYi Liu , XiaoYan Yin ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2012, Vol.57 (36), pp.4735-4745Springer
摘要:Abstract(#br)The Gantaohe Group is an important early Precambrian unit in the Trans-North China Orogen, North China Craton, and is mainly composed of greenschist-facies metabasalt, meta-sandstone and dolomitic marble. We report whole-rock geochemical compositions and SHRIMP ...
作者:Dunyi Liu , Ping Jian ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2004, Vol.49 (2), pp.201-209Springer
摘要:Abstract(#br)Located in the eastern portion of the Xing’an-Mongolian Orogenic Belt (XMOB), the Xinkailing-Kele complex has previously been considered to be Precambrian metamorphic rocks, mainly according to its relatively high metamorphic grade. Our filed observation, howeve...
作者:Yusheng Wan , Dunyi Liu , Ping Jian
来源:[J].Chinese Science Bulletin(IF 1.319), 2004, Vol.49 (14), pp.1501-1506Springer
摘要:Abstract(#br)Monazite dating is an important technique in geochronological studies. However, monazite U-Pb dating by SHRIMP is much less popular than zircon in geochronological applications. This paper compares the results of SHRIMP U-Pb dating of monazites and zircons separated ...
作者:Shuwen Liu , Qiugen Li ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2005, Vol.50 (3), pp.256-264Springer
摘要:Abstract(#br)SHRIMP U-Pb zircon analyses for a gabbro sample from the Garzê ophiolite block yielded a mean 206 Pb/ 238 U age of 292 ±4 Ma, which indicated that the spreading time of the Garzê-Litang Tethys was most likely at the earliest Permian. Combined with previous studi...
作者:Dunyi Liu , Linzhi Gao ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2003, Vol.48 (16), pp.1657-1662Springer
摘要:Abstract(#br)In the newly revised Regional Chronostratigraphic ( Geochronologic ) Scale of China , the original bipartite division of the Neoproterozoic is changed to tripartite division. The three “system”-rank chronostratigraphic units are in ascending order of the Qingbai...
作者:Dunyi Liu , Mingguo Zhai
来源:[J].Chinese Science Bulletin(IF 1.319), 2004, Vol.49 (15), pp.1629-1636Springer
摘要:Abstract(#br)Zircons from the auriferous quartz vein in the Rushan gold deposit, Jiaodong Peninsula, have high common Pb contents ( 206 Pb 6 = 2.00%–15.88%) and Th/U ratios (0.31–1.35), and trap primary CO 2 -H 2 O fluid inclusion similar to ore-forming fluids, indicating th...
作者:DunYi Liu , JunJian Li ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2007, Vol.52 (21), pp.2984-2994Springer
摘要:Abstract(#br)Zircom U-Pb age and Hf isotope analyses were made on gneissic granite and garnet-mica two-feldspar gneiss from the Helanshan Group in the Bayan Ul-Helan Mountains area, the western block of the North China Craton (NCC). Zircons from the gneissic granite commonly...
作者:... Hangqiang Xie , Qingren Meng , Dunyi Liu
来源:[J].Chinese Science Bulletin(IF 1.319), 2006, Vol.51 (15), pp.1877-1883Springer
摘要:Abstract(#br)The basement of the Songliao Basin mainly contains low-grade metamorphic rocks and granites. It has been long disputed whether the basin has Precambrian metamorphic basement. This is a report of zircon SHRIMP U-Pb dating results of a meta-diorite sample, which w...
作者:Dunyi Liu , Weiran Yang
来源:[J].Chinese Science Bulletin(IF 1.319), 2001, Vol.46 (1), pp.77-79Springer
摘要:Abstract(#br)This note reports the SHRIMP U-Pb data of zircons from the Caledonian Xiongdian eclogite, western Dabie Mountains. Zircons from the rock occur mainly in garnet and other metamorphic minerals with sharp boundaries and exhibit textures growing under metamorphic co...

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