Provenance studies of Moldanubian paragneisses based on geochemical data (Bohemian Massif, Czech Republic)
Provenance studies of Moldanubian paragneisses based on geochemical data (Bohemian Massif, Czech Republic)
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基于地球化学数据的摩尔达努比亚副片麻岩的起源研究（捷克共和国波希米亚地块）
DOI：
10.1127/njgpa/242/2006/83
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发表时间：
2006
影响因子：
0.8
通讯作者：
M. René
中科院分区：
文献类型：
--
作者：
M. René
摘要：对波希米亚地块Moldanubian带的35个副片麻岩样品进行了全岩主量元素和微量元素分析。并与Erbendorf-Vohenstrauss（ZEV）带、Teplá-Barrandian带和Saxothuringian带的晚前寒武纪碎屑变质沉积物地球化学资料进行了比较。Moldanubian带的副片麻岩通常代表粘土岩成分（除了杂砂岩和泥岩成分），而ZEV、Teplá-Barrandian带和Saxothuringian带中的粘土岩成分似乎更罕见。在这些单元中，晚前寒武纪碎屑沉积物中以杂砂岩和泥岩成分为主。摩尔多瓦副片麻岩的沉积原岩可能是在大陆岛弧（单调组）和活动大陆边缘（多变组）之间的环境中沉积的。
Abstract: Major and trace element whole-rock analyses have been carried out for 35 samples of paragneisses from the Moldanubian zone of the Bohemian Massif. The results are compared with geochemical data of Late Precambrian clastic metasediments from the zone of Erbendorf-Vohenstrauss (ZEV), the Teplá-Barrandian zone and the Saxothuringian zone. Paragneisses from the Moldanubian zone often represent claystone compositions (apart from greywacke and mudstone compositions), while such claystone compositions appear to be much rarer in the ZEV, the Teplá-Barrandian zone and the Saxothuringian zone. In these units, greywacke and mudstone compositions are prevailing among the Late Precambrian clastic sediments. The sedimentary protoliths of the Moldanubian paragneisses were probably deposited in an environment between continental island arc (Monotonous group) and active continental margin (Varied group).