Silurian

Phases of secondary pore generation and dissolution mechanism: taking Silurian Asphaltic Sandstone in Central Tarim Basin as an example

次生孔隙形成期次与溶蚀机理&以塔中地区志留系沥青砂岩为例

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.

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.

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%.

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.

Lithofacies paleogeography and petroleum geology of the Silurian in Yangtze area

扬子地区志留纪岩相古地理与石油地质条件研究

Silurian-Devonian biostratigraphy, synecology and palaeobiogeography from central Jilin, NE China

吉林中部志留&泥盆纪生物地层、群落生态及生物古地理

Based on Silurian-Devonian lithofacies palaeogeography research, the tectonic background maps, sedimentary face maps, reservoir evaluation maps and other basic geological maps of the center of Tarim basin are drawn in this paper.

本文基于塔里木盆地塔中地区志留系&泥盆系的岩相古地理研究，绘制了研究区的构造背景图、沉积相分布图和储层评价图等基础地质图件。

Diagenesis data indicate that the Silurian asphaltic sandstones are the products of multiple fillings of hydrocarbon.

志留系沥青砂岩的成岩作用特征等资料证明，沥青砂岩的形成是烃类多期次注入的结果。

Upper Silurian and Lower Devonian conodonts from Lijiang of Yunnan

云南丽江上志留统和下泥盆统牙形刺

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.

A phasic alternation of marine biota from Late Ordovician to Early Silurian and the geological age of the Guanyinqiao formation

扬子区晚奥陶世到早志留世海洋生物群的阶段性更替及观音桥组的时代

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.

Thrust nappes consist of the limestone of Sinian and Cambrian which thrusted over the shale of Silurian with NW → SE thrust direction and had a drape cline thrust surface.

推覆体主要为震旦系、寒武系的灰岩，由NW→SE推覆掩盖在志留系页岩之上，主滑脱面倾角较小（10°～20°）。

The asphalt reflectance ( BRo) shows that formation of the asphalt was hardly affected by thermal action. Practically, the Silurian asphaltic sandstones were formed mainly by intense bio degradation and the BRo value reflects the bio degradation grade of the asphalt.

沥青反射率BRo反映了沥青的形成受热作用影响不大，BRo大小实际上反映生物降解程度的强弱，志留系沥青砂岩主要是由较强烈的生物降解作用而造成的。

Genetic types of Silurian basal conglomerate in Southern Guizhou

黔南志留系底砾岩成因类型

According to the gravel composition, distribution, occurrence features and sedimentary features, the Silurian basal conglomerate in southern Guizhou may be classified according to its genesis into the storm event sedimentary type, tide channel lag type, karst collapse type and beach accumulation type.

依据底砾岩的砾石成份、分布和产出特征，以及沉积特点等，把贵州南部志留系的底砾岩分为风暴事件沉积型、潮道滞流型、岩溶垮塌型及海滩堆积型四种成因类型。

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.

Results from petroleum explorations for nearly four decades in the South Yellow Sea indicate that in the Yangtze massif, are developed a complete set of Mesozoic-Paleozoic marine strata with large thickness and wide distribution, and only upper Silurian and lower Devonian are absent.

南黄海海域油气勘探近40年成果证实，处于扬子地块之上，除缺失志留系上统和泥盆系下统，发育了较完整的中、古生代海相地层，厚度大，分布广。

The extensional fault systems are believed to be developed through the Cambrian, Ordovician, Early Silurian, Middle-Late Jurassic, and Paleogene.

伸展断裂系统发育于寒武纪、奥陶纪、早志留世、中-晚侏罗世和古近纪。

Petrology and sedimentary environment of middle Silurian in southern region of West Qinling

西秦岭南带中志留统的岩石学特征与沉积环境

Analysis of Early Silurian Sequence Stratigraphy at NW Margin of Yangtze Platform

扬子板块西北缘早志留世层序地层分析

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.

Late Silurian-Early Devonian bryozoans from Baytik mountain of Xinjiang

新疆北塔山晚志留&早泥盆世苔藓虫

Preliminary study on tectonic cycle sequence and reconstruction of the Silurian-Devonian prototype basin in South Tianshan orogenic belt

南天山造山带志留&泥盆纪盆地恢复与构造旋回地层学初探

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 )

Origin, emigration and paleogeography of Ordovician-Silurian Tabulata in Yangtze Region

扬子区奥陶纪&志留纪横板珊瑚的发生、迁移与生物古地理

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.

The discovery of late Silurian conodonts in the northern Qilian Mountains

北祁连山发现晚志留世牙形刺

recognition of the classification, biostratigraphy and biogeography of the ordovician and silurian rugose corals in the yangtze region

扬子区奥陶纪、志留纪四射珊瑚分类、生物地层与生物古地理新认识