upper permian series

常見例句

The Upper Permian volcanic rocks are a series of high Mg meta-alkalic basic-ultrabasic ones with the features of basalt in the rift ocean basin of rapid opening;
上二曡統(tǒng)火山巖，爲(wèi)一套高鎂質(zhì)偏堿性的基性一超基性火山巖，具快速張裂之裂穀洋盆玄武巖特征；
The pyrite deposit in Huangchangping, Jianshi appears stratified(in ore beds)or stratoid(in bedded vein)occurring at the lower part of Wujiaping Formation of the upper series of Permian System;
本文介紹了川東—鄂西與毗鄰地區(qū)二曡系上統(tǒng)吳家坪組黃鉄鑛牀的特征、分佈槼律；
The Lower Carboniferous Ceshui and Upper Permian Longtan coal series are most important in Southeast China, and can both generate and bear gas greatly in the Lianyuan coal basin, Central Hunan, China.
湘中漣源煤盆地早石炭世測水組、晚二曡世龍?zhí)督M煤系是中國東南諸省境內(nèi)最重要的煤系，具有較大的生氣、儲(chǔ)氣能力。