| 鲁西寒武系第三统张夏组凝块石特征及其形成环境研究 |
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| 引用本文： | 陈金勇,韩作振,范洪海,迟乃杰.鲁西寒武系第三统张夏组凝块石特征及其形成环境研究[J].沉积学报,2014,32(3):494-502. |
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| 作者姓名： | 陈金勇 韩作振 范洪海 迟乃杰 |
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| 作者单位： | 核工业北京地质研究院;山东科技大学地质科学与工程学院;山东省地质科学实验研究院; |
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| 摘 要： | 通过野外观察及显微镜下分析，对鲁西寒武系第三统张夏组的凝块石特征进行了详细研究。凝块石呈米级的生物丘和生物层状，其凝块大多为斑块状、树枝状和网状。形成凝块石的微生物主要是附枝菌，其次是葛万菌和放射状菌。通过沉积相分析及与之共生的岩相，初步确定了凝块石的形成环境--潮下低能带。
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| 关 键 词： | 凝块石 附枝菌 形成环境 张夏组 寒武系第三统 鲁西地区 |
| 收稿时间： | 2013-06-19 |
Characteristics and Sedimentary Environment of Thrombolite in the Zhangxia Formation (Third Series of Cambrian), Shandong Province |
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| Abstract: | This paper has studied in detail the characteristics of thrombolite in the Zhangxia Formation (Third Series of Cambrian), Shandong Province. Thrombolite is bioherm and biostrome. And the clot of thrombolite is clotted dendritic and meshed. The microbes formed thrombolite are Epiphyton, Girvanella and Actinophycus. Based on the analysis of sedimentary facies and paragenesis lithofacies, the author initially determines sedimentary environment of Cambrian thrombolite in the west of Shandong Province is the low-energy subtidal zone. |
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