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斑岩

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The volcanic rocks of the Xiong'er Group is also widespread in the Baoji and Lvliang area and also appear as 1.75Ga-old mafic dyke swarms, A-type granites, later anorthosite and rapakivi granites (1.75-1.70Ga), and alkaline granitoids (~1.65Ga). These intrusive rocks are assumed to have genetic link to the volcanic rocks of the Xiong'er Group.

熊耳期岩浆活动在华北陆块广泛分布,除了陕西宝鸡附近及山西吕梁地区的火山岩,还广泛分布1.75Ga前后的基性岩墙群、A-型花岗岩以及比熊耳群稍晚的斜长岩、奥长环斑花岗岩等(1.75-1.70Ga)和碱性花岗岩类(~1.65Ga)。

Conventional step heating 40 Ar 39 Ar spectra of metamorphic garnet separated from a high pressure granulite sample yielded date of 1852±8Ma.

采用 4 0 Ar- 39Ar阶段加热法研究华北桑干地区高压基性麻粒岩的变斑晶石榴石,获得 4 0 Ar- 39Ar坪年龄 185 2± 8Ma,4 0 Ar- 39Ar等时线年龄 186 2± 37Ma。

Rhyolites are a group of extrusive igneous rocks with phenocrysts (visible crystals that grew out of the molten lava) of quartz and alkali feldspar in a glassy to cryptocrystalline groundmass.

流纹岩是一组受挤压火成岩矿,包含了在玻璃基的隐晶质中的石英与碱性长石的斑晶(生在于熔岩外的可见石英晶体)。

The mineralization and the alteration types are clearly distributed around the hornblende quartz diorite porphyry intrusion.

其矿化围绕含眼球状石英斑晶的角闪石石英闪长玢岩及其环带状蚀变带分布。

The garnet-bearing andesite in the Aqikekule Lake area, northern Tibetan Plateau contains plenty of phenocrysts of garnet, plagioclase, hornblende and quartz.

中文摘要:阿其克库勒湖地区的石榴石安山岩含有石榴石,斜长石,角闪石和石英斑晶。

Leopard limestone is composed of dolomitic and marly materials.

组成豹皮灰岩的物质成分有2种,一为白云质成分的豹斑,其余部分为泥灰质。

I am Ministry of the four year supply of fish,, mandarin fish, channel catfish, Clarias, golden catfish, big catfish, California perch, bass Soe Jiang Mission, yellow forehead, forehead vachelli Huang, Alice shell , Yan Lei, Ya fish, dog fish, Chinese sucker, sucker mouth, loach, eels, sturgeon, paddlefish, the Russian sturgeon, sunfish, tilapia, white ilishaeformis, Batocera back Ictalurus back, rainbow trout, catfish Silurus, gray Green Wave and other fish and adult fish, the sale of product variety complete, abundant, high quality excellent, experienced operator to ensure that sent to all over the quality of the goods, fish market to provide pre-sales advice and after-sale technical guidance.

我部常年供应四大家鱼、丁桂、桂鱼、沟鲶、胡子鲶、金丝鲶、大口鲶、加州鲈、梭鲈、江团、黄颡、瓦氏黄颡、翘壳、岩鲤、雅鱼、狗鱼、中华胭脂、大口胭脂、泥鳅、黄鳝、鲟鱼、匙吻鲟、俄罗斯鲟、太阳鱼、罗非鱼、翘嘴白、云斑回、斑点叉尾回、虹鳟、怀头鲶、武昌鱼、乌鱼青波等鱼苗和成鱼,所售产品品种齐全、货源充足、质高价优,操作人员经验丰富,可确保发往各地的货物质量,鱼苗提供售前市场行情咨询和售后技术指导。

Study on the lithology and petrology (fine-grained cold-quenching ring of the enclaves, the reverse vein, the complex enclaves, the plagioclase phenocryst from both host rock and enclaves that is consist on the crystal form, composition and light, et al.), petrogeochemistry (Y/Nb=2.77~6.82, La/Nb=0.91~4.33, Ba/Nb=0.13~37.86, et al.), Sr and Nd isotope most ISr between 0.7031~0.7041,εNd(t=5.2~7.1 and LA-ICP-MS zircon U-Pb dating (the host rock age is 311±12Ma, and enclaves is 306±7Ma), believe the Huangyangshan pluton is crust-mantle hybrid genesis.

通过岩石学和岩相学(包体细粒淬冷边,反向脉,复合包体以及寄主岩石和包体中斜长石斑晶在形态、成分、光性上的一致性等),岩石地球化学(Y/Nb=2.77~6.82,La/Nb=0.91~4.33,Ba/Nb=0.13~37.86等),Sr和Nd同位素(ISr多数在0.7031~0.7041,εNd在5.2~7.1之间)以及LA-ICP-MS锆石U-Pb测年(寄主岩石为311±12Ma,包体为306±7Ma)综合研究认为黄羊山花岗岩是壳-幔源岩浆混合成因的。

Supracrustal rocks Tholeiite Diagenetic environment Island arc Huadian-Jingyu region

上壳岩;拉斑玄武岩;成岩环境;岛弧;桦甸—靖宇地区

These dilatation veins are the ultramafic—mafic intrusive sheets in early stage, which occurred the strong boudinages and the shearing rotation forming θ、Φ、δtype porphyroclasts generally, as the series different size deformation zones; the features of the leucocratic felsic veins in middle stage; the pink granitoid veins in later stage, show a gneisses evolution process from the deep tectonic facies to the middle tectonic facies.

这些扩张脉体,早期阶段为超镁铁质—镁铁质侵入岩席,受后期构造改造岩席发生强烈石香肠化或受剪切发生旋转,呈θ、Φ、δ碎斑系,总体构成一系列规模不等的变形带;中期阶段以发育淡色长英质脉体为特征;晚期阶段为肉红色花岗质脉体,反映出片麻岩由深构造相向中浅构造相变化的过程。

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