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Actinolite and pyroxene phenocrysts separated respectively, from chlorite-actinolite schist and altered pillow basalt in the E'rou area of the eastern part of the Shuanghu-Longmuco suture zone, yield well-defined 40Ar/39Ar plateau ages of 235.9±2.6 Ma and 232.5±2.4 Ma. These nearly identical ages are interpreted as defining the age of the tectonothermal event of subduction-related collision along the Shuanghu-Longmuco suture zone.

在藏北龙木错-双湖缝合带东段双湖鄂柔地区,获得绿泥阳起石片岩中阳起石矿物的40Ar/39Ar坪年龄为(235.9±2.6)Ma和枕状玄武岩中蚀变辉石斑晶的40Ar/39Ar坪年龄为(232.5±2.4)Ma,两个年龄具有极好的一致性,记录了中三叠世晚期-晚三叠世早期沿龙木错-双湖缝合带发生俯冲碰撞作用的构造-热事件。

The chemical composition of Pingyang gneissic granite with high contents of SiO〓, Na〓O, Sr and Ba was inherited and developed from that of mainly biotite gneiss through anatexis under the background of regional migmatisation, it might also be introduced the fluid material from deep.

平阳片麻状花岗岩的化学成分是在区域混合岩化对岩石成分总体改造趋势的背景下,在黑云斜长片麻岩成分的基础上,通过黑云斜长片麻岩的深熔以及可能的变质脱水反应流体和深部流体的加入演变而成,富SiO〓、Na〓O以及Sr和Ba。

The strata inside and outside the cave are argillaceous bedded limestone and wormkalks of late Cambrian, that is, 490—500 million years before present.

洞内外地层为距今4.9亿年—5亿年的晚寒武世泥质条带灰岩和竹叶岩状灰岩,它们都是在浅海中生成的,说明当时鱼谷洞地区曾是一片大海。

The slaty or banding granite and diorite paleo-rock body those have gneissic structure and pl.

呈板状或条带状分布的具有片麻状构造和塑变流的花岗岩和闪长岩的古岩体与金矿关系最为密切,它不仅为成矿提供金等成矿物质和成矿热能,而且是区内金矿脉的直接围岩。

The Dam area is located in Weixi city of YunNan province,whose climate is sub-thermal or the mountain plateau temperate monsoon,the regional water system developed,the exposed strata are mainly limestone、dolomite、schist and phyllite, the aquifer and the Impermeable layers are separated each other.

坝址区位于云南身维西县境内,属亚热-温带季风高原山地天气,区内水系发达,出露的地层主要为泥盆系的灰岩、白云岩及片岩、千枚岩,呈含水层与隔水层互层状构造。

A schist is a metamorphic crystalline rock layered and divided along approximately parallel planes.

阿片岩是一种层状变质结晶岩和沿大约平行的平面划分。

The original Seluohe Group contains at least four parts: Late Archean metamorphic rocks (zircon SHRIMP protolith ages 2517~2534 Ma), Late Paleozoic metamorphosed volcanic-sedimentary strata (zircon SHRIMP 252 Ma), Permian gneissic granitic complex (zircon SHRIMP 260 Ma), and Jurassic mylonitized granites (zircon SHRIMP 168 Ma).

原划分的色洛河群至少由4部分组成:新太古代变质火山-沉积地层(锆石SHRIMP年龄为2517~2534 Ma)、晚古生代变质火山-沉积地层(英安岩锆石SHRIMP年龄为252 Ma)、二叠纪片麻状杂岩体(锆石SHRIMP年龄为260 Ma)和侏罗纪糜棱岩化花岗岩(锆石SHRIMP年龄为168 Ma)。

Nalati tectonic belts as the ultimate demise suture of south Tianshan ocean between Tarim plate - Yili-plate, of which basement is composed of lower Proterozoic gneissic metamorphic supracrustal rocks of Nalati rock group and early Proterozoic gneissic granite.

塔里木-伊犁微板块间的南天山洋最终消亡缝合线——那拉提构造带,基底由下元古界那拉提岩群的片麻岩、变质表壳岩及早元古代片麻状花岗岩组成。

The shape of cuttings is related with the drilling parameters. The cuttings often appear in irregular flakes during air hammer drilling, and in spindle shape during cone bit drilling.

岩屑的形状与钻井参数有关,空气锤破碎岩石的岩屑形状呈不规则片状,牙轮钻头破碎岩石的岩屑形状呈纺锤形。

The chlorite ores altered from mica schists are either massive or schisteous ores with gray greenish and dark gray colors.

而由云母片岩蚀变而来的绿泥石矿石呈块状或片理状、颜色为灰绿色和深灰色。

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