维普中文期刊产品整合服务
14篇 您的检索式:作者名="S.R.Hart"
    题名 作者 年代 出处 被引量
1俯冲陆壳与上地幔的相互作用——Ⅱ.大别山同碰撞镁铁-超镁铁岩的Sr,Nd同位素地球化学显示文摘北大别具有Nb ,Zr,Ti负异常的同碰撞镁铁 超镁铁侵入岩的Sr ,Nd同位素组成具有EMI特征 ,其初始εNd值为 - 2 .4~ - 1 8.6 .与其片麻岩围岩和南大别含柯石英榴辉岩类似 .用与俯冲洋壳有关的地幔交代作用及陆壳混染均不能解释这一特征 .李曙光 聂永红 S.R.Hart 张宗清 1998中国科学(D辑)1998,28,1:46
2TIMING OF COLLISION BETWEEN THE NORTH AND SOUTH CHINA BLOCKS——THE Sm-Nd ISOTOPIC AGE EVIDENCE显示文摘Sm-Nd isotopic ages for C-type eclogite (243.9±5.6 Ma) and mafic and ultramafic rocks(230.6±30.7 Ma and 402.6±17.4 Ma) from the Qinling-Dabieshan orogenic belt are reported.These ages suggest that at the early Triassic, the North and South China Blocks have beenunited along the Qinling-Dabieshan collision zone, and before the final collision, a se-ries of ophiolite obductions took place successively away from the continental marginduring the Paleozoic.李曙光 S.R.HART 郑双根 刘德良 张国伟 郭安林 1989Science China Chemistry1989,32,11:33
3Interaction between subducted continental crust and the mantle --Ⅱ. Sr and Nd isotopic geochemistry of the syncollisional mafic-ultramafic intrusions in Dabie Mountains显示文摘The syncollisional mafic\|ultramafic rocks with Nb, Zr, Ti negative anomalies in the North Dabie terrane have Sr and Nd isotopic compositions with EMI features. Their low and variable initial ε Nd values ranging from -2 to -18 are similar to those of their gneissic country rocks and the ultrahigh\|pressure metamorphic rocks in the South Dabie terrane. These Sr and Nd isotopic features are difficult to be interpreted by mantle metasomatism related to oceanic subduction or crust assimilation, but is best explained by the mantle metasomatism related to continental subduction.李曙光 聂永红 S.R.Hart 张宗清 1998Science China Earth Sciences1998,41,6:19
4Sm-Nd WHOLE-ROCK ISOCHRON AGE OF THE DENGFENG GROUP IN CENTRAL HENAN AND ITS TECTONIC IMPLICATION显示文摘Ⅰ. INTRODUCTION Volcano-sedimentary system of the Dengfeng Group metamorphosed to the amphibolite facies, central Henan, is considered as an E-W extending greenstone belt on the southern margin of the North China Craton (Sino-Korean Craton).李曙光 S.R.HART 郭安林 张国伟 1988Chinese Science Bulletin1988,33,20:2
5河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
6河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
7河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
8河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
9河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
10河南中部登封岩群全岩 Sm Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,32,22:1
11河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
12河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
13河南中部登封群全岩Sm-Nd同位素年龄及其构造意义显示文摘李曙光 S.R.Hart 郭安林 张国伟 1987科学通报1987,,22:1
14Trace Elements and Sr, Nd Isotope Geochemistry of the Lajimiao Norite-Gabbro from the North Qinling Belt显示文摘The Lajimiao norite-gabbro complex, as a part of the ophiolites on the southern side of the North Qinling belt, consists of gabbro and norite-gabbro. They were derived from different magma series: the gabbro was derived from tholeiitic magma series with higher TiO2, REE abundance and Fe3+/Fe2+ ratio ; norite-gabbro was derived from calc-alkali magma series with lower TiO2, Fe3+/Fe2+ ratio and REE abundance and much lower HREE abundance, which suggests that the source of the norite-gabbro magma was deeper and controlled by eclogite facies. Geochemical characteristics of both plutonic rocks are similar to those of island-arc basalts, such as relatively high contents of Ba, Pb and Sr and relatively low contents of Nb, Zr and N j.The Sr, Nd isotopic characteristics of the Lajimiao norite-gabbro complex are similar to those of ophiolites. Its εNd values are constant, about+2; whereas εst values have wide variation from - 6.4 to +31.2 and positively correlate with Na2O, H2O+ and CO2 contents and theS.R.Hart 1994Acta Geologica Sinica(English Edition)1994,68,2:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费