Silurian

Sq 1 , Sq 4, Sq 10 are three favorableexploratory sequence of the Silurian and Devonian in Tarim basin.

Sq1 、 Sq4、Sq10是塔里木盆地志留-泥盆系的三个有利勘探层序.

It changed to ancient land due vertical movement in the end of the Silurian.

南秦岭在早古生代是扬子板块的被动大陆边缘,在志留纪末曾因垂向隆升变为古陆.

The discovery of the Silurian-Devonian oil and gas reservoir reveals a good exploration prospect.

塔里木盆地志留 - 泥盆系油气藏的发现,展示了志留-泥盆系良好的勘探潜力.

Silurian System in Tarim Basin is distributed in an area of about 23.

塔里木盆地志留系分布面积约23.

Porphyry mineralization, occurred in the Silurian Period, finally formed ore bodies.

晚期矿化发生于志留纪, 使矿床最终形成.

From the Early Silurian large scale of retrogression had begun accompanying the Late Caledonian movement.

晚加里东运动(始于早志留世)发生了大规模的海退.

The hydrocarbon generation content in Lower Cambrian and Lower Silurian is up to 60 % ～80 % of total.

原始生烃量以下古生界为主,下寒武统和下志留统的生烃量约占总生烃量的60%～80%.

THE RETZIELLIDAE ( SILURIAN RIBBED IMPUNCTATE ATHYRIDIDINE BRACHIOPODS )

论志留纪的小莱采贝类——具壳线、无疹无窗贝族(腕足动物 )

The contact relationship between Silurian and Devonian is parallel unconformity.

泥盆系与志留系之间为平行不整合接触.

A rift trough along Mianxian-Lueyang ophiolitic melange belt was formed from Ordovician to Silurian.

奥陶纪—志留纪大致沿勉略构造带形成南秦岭裂陷槽.