Petrography and geochemistry of tonsteins from the 4th Member of the Upper Triassic Xujiahe formation in southern Sichuan Province, China
暂无分享，去创建一个
[1] Yiping Zhou,et al. Trace element geochemistry of altered volcanic ash layers (tonsteins) in Late Permian coal-bearing formations of eastern Yunnan and western Guizhou Provinces, China , 2000 .
[2] Christian D. Schönwiese. Volcanism and Climate , 1995 .
[3] B. Bohor,et al. Tonsteins: Altered Volcanic-Ash Layers in Coal-Bearing Sequences , 1993 .
[4] K. Burger. Vulkanogene Glasscherben-Relikte in Kohlentonsteinen des Saar-Lothringer Oberkarbons sowie Herkunft und Menge der Pyroklastika , 1990 .
[5] Lei Zhou,et al. The Permian-Triassic boundary event: a geochemical study of three Chinese sections , 1988 .
[6] R. Addison,et al. Volcanogenic tonsteins from tertiary coal measures, East Kalimantan, Indonesia , 1983 .
[7] Yiping Zhou,et al. Origin and distribution of tonsteins in late permian coal seams of Southwestern China , 1982 .