Geochemically Genetic Criteria of Silicolites in Yaluzangbu Suture Belt and Their Geological Significance
-
摘要: 通过西藏雅鲁藏布缝合带所产硅岩的化学组分中具有成因标志的不同元素组合比值（ＭｎＯ/ＴｉＯ２、Ａｌ/（Ａｌ＋Ｆｅ＋Ｍｎ）及Ｆｅ/Ｔｉ—Ａｌ/（Ａｌ＋Ｆｅ＋Ｍｎ）的相关图解、Ａｌ—Ｆｅ—Ｍｎ的三角图和硅岩原子量进行对比研究，从一个侧面反映硅岩的成因及其雅鲁藏布缝合带形成和演化关系。Abstract: Based on the study on element ratios of Mn0/TiO2, Al/(Al十Fe-Mn) and corrlation Chart of Fe/Ti一Al/ (Al十Fe-+Mn)，Triangle Diagram of Al一Fe一Mn as well as atomic weight of silicolites in Yaluzangbu suture belt, Tibet，this paper discusses the genesis of the silicolites and the formation as well as evolutionary history of the suture belt.
-
Key words:
- Yaluzangbu Suture Belt /
- Silicolites /
- Genetic criteria /
- Hydrothermal water process
-
[1] 1.王东安，1981，西藏南部沉积岩，北京:科学出版社，52-71,
2.王东安，陈端君,1993，生物成矿作用研究，北京:海洋出版社，52-64,
3.王东安，1999，扬子地台晚元古代以来硅岩地球化学特征及其成因，地质科学，29(1);91-54.
4.J.F.Ikwey , R.M.Shackleton，常承法，孙亦因，1990,育藏高原地质演化，科学出版社，384---908,
5.邓万明，1982,青截高原地质论文专辑，北京:地质出版社.36---52,
6.Adachi M., Yamamoto K., Sugisaki F.，1986, Hydrothermal chert and associated rocks from the northarn pacific; theirgeological Significonce as indication of oceanic Ridge activity.Sedimentary Geology，97(1/2):125-148.
7.Baetrom K.，Kraemer T.，Gartner S.，1973, Frovenance and accumulation rates of opaline Silica.Al, Fe,Ti,Mn,Cu,Niand Co in pacific pelagic sediment.Chemical Geology.11(1/2):123- 148. -
点击查看大图
计量
- 文章访问数: 501
- HTML全文浏览量: 9
- PDF下载量: 439
- 被引次数: 0
下载:
