Discovery and Geological Significance of a Piemontite-Quartzite of the Aoyitag of Aketao County, Kezillesu Kerkezi Autonomous State of Xinjiang, China

详细信息   

• 责任者：Wang Daoxuan (College of Resources and Environment Engineering ; Hefei University of Technology ; Hefei 230009 ; China) ; Ding Daogui
• 刊名：Chinese Journal of Geology
• 出版年：2011
• 卷期：46(2)
• 关键词：红帘石 ; piemontite ; 石英岩 ; quartzite ; 新疆 ; Xinjiang
• 页码：p.415-425
• 图表：4 illus., 1 table, 17 refs.
• 分类号：0802
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

摘要

Piemontite-quartzite is from the ductile shear zone of the southern Kudi-western Gaizi in the Aoyitag of Aketao County, Xinjiang, China. It is a part of the ophiolite suite of nothern part of the Western Kunlun Mountains, or a part of the Aoyitag- Kudi suture zone of the Western Kunlun Mountains, in the alternation of strata made up of piemontite-quartz, marbles, calcareous sihites, silty mudrock. It is a conditions of formation which lower temperature （405.5） and high pressure. Formed the protolith of the piemontite-quartzite is derived from highly oxidized ferromanganese oxide- and impure siliceous pelagic sediments for the piemontite schist. Piemontite-quartzite are considered low greenschist and high pressure metamorphic facies series, in the process of A-pattern subduction of Tarim Plate, since Eoeene-Oligocene.