1·Late Devonian About 360m years ago, a fifth of marine families were wiped out, alongside more than half of all marine genera.
泥盆纪晚期 约三亿六千万年以前,五分之一海洋家族遭毁灭,同时毁灭的还有半数以上的海洋属生物。
2·Based on sequence strati graphy work for the outcrops in tarim basin the author sets up the sealevel changes curve of sinian period to devonian period.
根据对塔里木盆地露头剖面的层序地层学研究,建立了震旦-泥盆纪古海平面变化曲线。
3·The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
本文采用新的区调填图理论和方法,详细划分了双王地区的泥盆纪地层,论述了岩相古地理特征。
4·The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.
本文采用新的区调填图理论和方法, 详细划分了双王地区的泥盆纪地层,论述了岩相古地理特征。
5·This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province.
本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。