川东石炭系中的天然气属于油型气，初为原油，曾经聚集于印支运动中形成的梁平—长寿古隆起带里，形成油藏。
The Carboniferous natural gas in eastern Sichuan is of cracked gas which had been accumulated, originally as oil, in Liangping-Changshou palaeohigh belt that was formed by Indosinian movement.
川东石炭系气藏广泛地分布于四川盆地东部，已成为主力气藏。
Chuandong Carboniferous gas reservoirs are widely distributed in the east port of Sichuan Basin.
分布于湖北西部、湖南西北部、贵州东北部、四川东部。模式标本采自湖北利川。
The species castanopsis hupehensis c. s. chao is distributed in west hubei northwest hunan northeast guizhou and east sichuan. the type specimen was collected from lichuan city west hubei.
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