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| 1 | Geochemical Characteristics of Eolian Deposits in the Chengdu Plain of Sichuan Province and the Implications for Provenance显示文摘In this study Chengdu Red Earth(CRE)from the Chengdu Plain(CP),Sichuan province,was analyzed for its elemental(major and trace elements)and isotopic(Sm-Nd)geochemistry and compared with Pleistocene loess and paleosol samples from the Chinese Loess Plateau(CLP)in Northern China.The geochemical composition of CRE is similar to north China loess,and also resembles the average UCC.This indicates that CRE,as loess deposits in Northern China,was derived from well-mixed sedimentary protoliths that have undergone numerous upper crustal recycling processes.However,obvious differences in the geochemical characteristics of CRE and the north China loess are also revealed in our results.For chemically stable elements,CRE has higher Ti,Zr,Hf and lowerΣREE,Ba contents in comparison with loess samples from the CLP.Further analysis shows that CRE has higher TiO2/Al2O3,SiO2/Al2O3,Ba/Rb and lower Ce/Yb,Eu/Yb,LaN/YbN andΣLREE/ΣHREE ratios.In Sm-Nd isotopic geochemistry,Sm and Nd content and theεNd(0)value in CRE are significantly higher than those in north China loess.The higher TiO2content in CRE coincided with a high background concentration of Ti in the Sichuan Basin and the surrounding regions.The lowerΣREE and higher Sm,Nd,εNd(0)values are related to the wide distribution of basalt in the southwest Sichuan Basin.The elemental and isotopic geochemistry of CRE indicates that eolian materials in the CP predominantly come from the Sichuan Basin and the surrounding regions,which differs from loess deposits in the CLP. | TAN Yuanlong QIAO Yansong ZHAO Zhizhong WANG Yan QI Lin FU Jianli LIU Zongxiu YAO Haitao WANG Shubing JIANG Fuchu | 2013 | Acta Geologica Sinica(English Edition)2013，87，6： | 3 |
| 2 | 地质学报,2012年,第86卷,总目次显示文摘 | | 2012 | 地质学报2012，86，12： | 0 |
| 3 | Petrogenesis of Cenozoic Basaltic Rocks from Jiangsu Province,China:Evidence from Geochemical Constraints显示文摘新生代(对更新世中新世) 在东方中国的江苏省的玄武岩的岩石包括橄榄石 tholeiite 和碱暗岩。我们现在的专业,踪迹元素和 Sr-Nd 象这些暗岩标明日期讨论暗岩的 petrogenesis 并且在学习区域下面识别地质的过程的 Ar-Ar 一样的同位素的数据。根据从江苏省 Cenonoic 玄武岩的岩石标明日期的化学 compisitions 和 Ar-Ar,我们建议这些暗岩可以属于一样的 magmatic 系统。在江苏省发现的碱暗岩有更高的 FeO, MgO, CaO, Na2O, TiO2 和 P2O5 和不兼容的元素,但是比可以被橄榄石,辉石和次要的斜长石的部分结晶化引起的橄榄石 tholeiite 降低 Al2O3 和兼容元素内容。在江苏玄武岩的岩石中,不兼容的元素与减少的 MgO/FeO 比率增加。原始使披风正常化的不兼容的元素和在江苏省发现的玄武岩的岩石的使球粒状陨石正常化的 REE 模式类似于 OIB 的那些。asthenospheric 披风升起伴随的披风 Uthosphere 的部分损失可以加速玄武岩的岩浆的产生。143Nd/144Nd 对 87Sr/86Sr 阴谋显示一在学习区域混合弄空的 asthenospheric 披风来源和一个 EM1 部件。根据杂木林的方程,从江苏省的暗岩可以被 1%5% 形成弄空的 asthenospheric 披风来源的部分融化。根据这研究和部分结晶化模型的年龄由布鲁克斯和尼尔森( 1982 )建议了的 Ar-Ar ,我们建议从江苏省的暗岩可以作为经历了部分结晶化并且日益增多地演变生产暗岩的另外的类型的原始岩浆与 JF-2 属于一个 magmatic 系统。 | Yung-Tan LEE Ju-Chin CHEN Jyh-Yi SHIH Kung-Suan HO Huai-Jen YANG Meng-Lung LIN Yen-Tsui HU Ching-Hsing CHIU | 2013 | Acta Geologica Sinica(English Edition)2013，87，1： | 0 |
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