桂西南广泛发育一套与微粒型金矿密切相关的早三叠世中酸性火山岩。
There exists an extended set of early Triassic intermediate-acid volcanics closely related to microdot gold ore in Southwestern Guangxi.
该套地层的发现填补了微陆块上二叠系地层的空白，对古特提·斯多岛洋研究具有重要意义。
The discovery has filled the gap in the studies of the Permian system occurring in micro-landmass and is significant to the researches of numerous oceanic islands in the ancient Tethyan.
鄂尔多斯盆地中生界上三叠统延长组是一套以大型内陆盆地为背景、以河流和湖泊相为主的陆源碎屑沉积。
The Yan-Chang formation of Upper Triassic in Ordos basin is mostly detritus sediments derived from rivers and lakes sedimentary environment on setting of inland basin.
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