世相

The age of adakitic dacite is about 514.2±8.5 Ma, and the age of eclogite from the northern margin of Qaidam basin is 494.6±6.5 Ma. Therefore, it is considered that the slab started its subduction in Late Cambrian, that the adakitic magma was formed at the subduction depth of about 75~85 km, and that the partial melting residues with garnet facies continued subducting and finally formed eclogite in Early Ordovician.

据其地球化学研究结果并结合该区埃达克质英安岩(5 14.2± 8.5Ma)和榴辉岩(494.6± 6 。5Ma)的年龄数据，推测柴北缘板片在晚寒武世开始俯冲，俯冲板片在 75～ 85km深处开始部分熔融形成埃达克质岩浆，而熔融残留部分继续俯冲，在早奥陶世形成含石榴石残留相的榴辉岩。

The Buqingshan — Huashxia superslice is complex, including Middle Proterozoic diorite-facies Kuhai melange slice, ophiolite slice of different times, Early Permian — Early Triassic flysch wedge, basic-acid volcanic slice and carbonate slice and Late Triassic — Early Jurassic Yangqu Fm. terrestrial clastic slice.

布青山一花石峡超岩片组成较复杂，包括中元古界角闪岩相变质的苦海杂岩岩片、不同时代蛇绿岩岩片、早二叠世—早三叠世复理石楔岩片、中酸性火山岩岩片和碳酸盐岩片以及早侏罗世羊曲组的陆相碎屑岩岩片。

But the geological and geochemical analyses showed that there existed a set of high quality marine source rock in the platform slope facies of Middle Ordovician Pingliang Formation. The oil and gas generated from the source rock of Pingliang Formation was accumulated firstly in the central Palaeo-uplift and its surrounding regions. The thermogenic asphalt in palaeo-uplift carbonate reservoir indicated that oil accumulation completed transition from oil to gas in the Lower Crataceous. Along with the palaeo-uplift axis convection and the formation of westward monocline in the Late Crataceous, gas from the palaeo-reservoir was finally accumulated in the weathering crust of Majiagou carbonate reservoir.

地质和地球化学分析证实，盆地西、南缘台缘深水斜坡相的中奥陶统平凉组存在优质海相烃源岩，其形成的油气最早富集在中央古隆起及其周围；伴随着中央古隆起带轴部的向东迁移和早白垩世末盆地西倾大单斜的定型，平凉组烃源岩在早白垩世生烃高峰期生成的天然气和早期古油藏裂解气，由中央古隆起带向北东方向发生二次运聚，最终在盆地中部奥陶系马家沟组风化壳中聚集成藏，即形成靖边大气田。

This paper is a continuation of the papers on lithofacies palaeogeography of the Early, Middle and Late Cambrian and the Early and Middle Ordovician.

本文是笔者等的中国早、中、晚寒武世和早、中奥陶世岩相古地理诸文的继续。

Among the platforms, South China, North China and Northwest China are well studied, their secondary lithofacies paleogeography units are defined on the basis of accurate quantitative data and quantitative maps, and the lithofacies paleogeography of the Early Age of the Early Cambrian can be differentiated from that of the Late Age.

华南、华北和西北地方的研究程度较高，它们的次级岩相古地理单元的划分均有确切的定量资料和定量图件为依据，是定量的，而且还能把早寒武世早期和晚期的岩相古地理划分开，其文字编述也比较深入。

According to the wide development of the typical warm-phase salt minerals such as primary glauberite and its thin bed in the Qianjiang Formation, it may be inferred that the dry palaeoclimate in the drainage area of the Jianghan Basin during the Late Eocene to Early Oligocene was of warm-dry type, rather than of cold-dry type.

根据潜江组中典型暖相盐类矿物原生钙芒硝及其薄层的广泛发育，可以推断江汉盆地区域在晚始新世－早渐新世潜江组沉积期间，所出现的干旱古气候属于暖旱型而不是寒旱型。

This paper deals with the formation conditions of black shales based on such analytical techniques as ICP_MS, GC_MS, isotope, organic carbon, element facies and micropetrology.

本文采用GC＿MS、ICP＿MS、形态硫分析、硫同位素、物相分析等方法综合研究了湘西晚震旦世－早寒武世黑色岩系的地球化学特征和形成条件。

In the Middle and Late Cambrian, similar to the lithofacies palaeogeographic pattern of the Early Cambrian, the land area was gradually reduced, the basin area was enlarged, while the Tarim carbonate platform changed little.

中寒武世和晚寒武世的岩相古地理格局与早寒武世相似，但陆地面积逐渐缩小，盆地面积逐渐扩大，塔里木碳酸盐岩台地变化不大。

The Mazhashan syenites in the Bachu area were formed in the Late Permian with the zircon SHRIMP age ranging from 286 to 277Ma, and these ages are consistent with the ages (300-260 Ma) of the post-collisional granites in the southern Tianshan orogen.

巴楚麻扎山正长岩体形成于286~277 Ma，属于晚二叠世，与南天山造山带晚二叠世花岗岩(300～260 Ma)相一致。

The study on petrology, geochemistry and isotope geology indicates that there are the common resource and tectonic setting for the Kangbutiebao formation with metamorphic volcanic rocks and the granite plutons related to the main iron deposits.They are different facies from magma evolvement in late Silurian-early Devonian.

岩石学、岩石地球化学及同位素研究表明，康布铁堡组变质火山岩、与主要铁矿床有关的花岗岩具有同源、同构造环境特征，是晚志留世-早泥盆世岩浆演化的不同相。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了