| 人工重矿物组份的研究法在岩相古地理研究中的应用——以厂坝王家山组浅变质岩系为例 |
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| 引用本文： | 蔡雄飞,黄思骥,肖劲东,秦晓玲.人工重矿物组份的研究法在岩相古地理研究中的应用——以厂坝王家山组浅变质岩系为例[J].沉积与特提斯地质,1990,10(1):12-18. |
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| 作者姓名： | 蔡雄飞 黄思骥 肖劲东 秦晓玲 |
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| 作者单位： | 中国地质大学 武汉 |
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| 摘 要： | 人工重矿物组份的研究,在变质岩地区是一种经常使用的工作方法。因为它对变质岩地区的地层划分与对比、确定母岩区等是十分有效的。此外,在变质岩地区进行沉积相和再造古地理的研究中,它也有不可忽视的作用。这是由于变质岩区的许多原始沉积构造标志大多遭受改造和破坏。有些标志虽尚能辩认,但毕竟有其一定的局限性。而人工重矿物的研究,可以对沉积相观察和分析的结果进行检验和补充。西秦岭大陆边缘沉积学专题组,在对厂坝矿区王家山组的一套浅变质岩系沉积相观察中,利用了人工重砂组份的研究,三年来已取得了不少的成果。一、王家山组沉积和区域古地理的变化特征厂坝矿区,系由一套浅变质岩系组成的含矿地层。根据浅变质岩系的岩性、沉积学及地球化学组合特征,自下而上可划分为三个组。下部为王家山组陆源碎屑岩,中、上部为结晶灰
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ARTIFICIAL HEAVY MINERAL ANALYSIS: APPLICATIONS TO THE STUDY OF SEDIMENTARY FACIES AND PALAEOGEOGRAPHY,WITH AN EXAMPLE FROM LOW-GRADE METAMORPHIC SUCCESSIONS OF THE WANGJIASHAN FORMATION IN THE CHANGBA DISTRICT,CHENGXIAN,GANSU |
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| Cai Xiongfei,Huang Siji,Xiao Jindong,Qin Xiaoling.ARTIFICIAL HEAVY MINERAL ANALYSIS: APPLICATIONS TO THE STUDY OF SEDIMENTARY FACIES AND PALAEOGEOGRAPHY,WITH AN EXAMPLE FROM LOW-GRADE METAMORPHIC SUCCESSIONS OF THE WANGJIASHAN FORMATION IN THE CHANGBA DISTRICT,CHENGXIAN,GANSU[J].Sedimentary Geology and Tethyan Geology,1990,10(1):12-18. |
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| Authors: | Cai Xiongfei Huang Siji Xiao Jindong Qin Xiaoling |
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| Institution: | China University of Geosciences, Wuhan |
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| Abstract: | This paper deals with the theory and method of artificial heavy mineral analysis in the lowgrade metamorphic successions. The study of the terrigenous clastic rocks in the low-grade metamorphic successions of the Wangjiashan Formation in the Changba district, Chengxian County, Gansu Province shows that artificial heavy mineral analysis will be of great significance in palaeogeographic reconstruction. |
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