Trace elemental behavior during chemical weathering: A case study of biotite-granitic weathering pro

来源 :Chinese Science Bulletin | 被引量 : 0次 | 上传用户:longyilang
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
THE study of chemical weathering processes can provide significant insight into not only the behavior ofmigration, deposition and accumulation of REEs and other elements (e.g. Au, Fe, Al ), but also themechanism of material cycle on the surface of the earth, especially the relationship between detrital sediments and provenance. Lateritic profiles are widespread in southern China, where two kinds of valuable supergene deposit occur. One is “ion-adsorbed” REE ore deposit; the other is lateritic gold ore deposit. This study is to investigate the mobility and fractionation of major and trace elements and mineralogical variations during chemical weathering of biotite granite in Longnan, Jiangxi Province, China, andto provide significant data for a better understanding of the relationships between weathering of resource THE study of chemical weathering processes can provide significant insight into not only the behavior of migration, deposition and accumulation of REEs and other elements (eg Au, Fe, Al) but also themechanism of material cycle on the surface of the earth, especially the relationship Between istrings and provenance. Lateritic profiles are widespread in southern China, where two kinds of valuable supergene deposit occur. One is “ion-adsorbed” REE ore deposit; the other is lateriticitic gold ore deposit. This study is to investigate the mobility and fractionation of major and trace elements and mineralogical variations during chemical weathering of biotite granite in Longnan, Jiangxi Province, China, andto provide significant data for a better understanding of the relationships between weathering of resource
其他文献
第五届全国地震工程会议于1998年10月20~22日在北京召开。出席会议的有来自全国有关科研、设计、高等院校和管理部门的代表120多人;建设部勘察设计司林选才司长、中国地震局预测预报司卢寿德
TIANSHAN in southern Xinjiang belongs to the Paleozoic island arc system in which volcanic rocks are extensively distributed. A series of epithermal gold depos
1997年 8月至 1999年 1月 143例既往未治的局限性前列腺癌行耻骨后根治性前列腺切除术 ,其中 6 2例为低危险性前列腺癌 :PSA≤ 10ng/ml,活检Glea son计分≤ 7,临床分期T1c~T2b。患者均行六区法前
采用模糊数学方法建立的动态从属函数,将地震前兆异常信息化作(0~1)之间的无量纲值,从综合的角度对常熟51级地震震前前兆异常进行时、空动态演化的追踪分析研究,对进入中短期孕震阶段
目的 研究非小细胞肺癌 (NSCLC)的CT征象与 p5 3、p16基因蛋白异常表达之间的相关性。 方法 应用免疫组化SABC法检测 5 2例经手术病理证实的周围型非小细胞肺癌 (NSCLC)石
乳腺癌 (以下简称乳癌 )的历史演变简言之就是从肿块切除———全乳切除———乳癌根治术———扩大根治术———改良根治术———全乳切除———肿块切除的兜圈子过程。当然
消费电子领先厂商魔声获得授权,在CSR无线音频平台基础上将aptX音频编解码技术广泛应用于其无线扬声器和耳机当中CSR,Plc(伦敦证券交易所代码:CSR;纳斯达克代码:CSRE)日前宣
1 引 言含有石英+硫化物±碳酸盐矿物组合的矿脉在Ishpeming太古宙绿岩带中普遍存在(见图1).Ropes金矿的这种矿脉是美国已知的产于太古宙岩石中的唯一有意义的脉状金矿床.Ropes金矿矿脉及伴生的蚀变岩
农田防护林建设,首先必须坚持为农、牧业生产服务的方向,按照社会主义大农业的要求,以建设高产稳产田为中心,正确处理好农、林、牧三者关系。其次,必须贯彻“因地制宜,因害设