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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)。

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)。

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。

The PGE distributive patterns are the PtPd type, the Pt/Pd ratios of 0.32-0.68 are between the values of enriched sulfide tholeiite (0.38) and primitive upper mantle (1.36), and the similarity of partition patterns of chondritenormalized REE, MORB-normalized trace element and primitive mantle normalized PGE for the rocks of the three phase zones, indicate the Baimazhai intrusive body I formed by the evolution, liquation, intrusion and diagenesismetallogenesis of basaltic magma.

铂族元素配分模式为Pt-Pd型,w/w比值为0.32~0.68,介于富硫化物拉斑玄武岩(0.38)和原始上地幔(1.36)之间,以及稀土元素配分模式、微量元素蛛网图和铂族元素配分模式中不同岩石配分曲线的相似性揭示3个相带不同岩石之间的高度一致性,展示基性-超基性岩形成于玄武质岩浆演化、熔离及岩浆一次性侵入、分异成岩成矿的特征。

The crustal sequence of Shexian ophiolites belongs to the transitional series behaeen calc-alkaline basalt and tholeiite and all through has similar trace elements and REE ratios and chondrite-normalized REE patterns, with high enrichment of large-ion lithophile elements and LREE.

歙县蛇绿岩壳层组合属于钙碱性和拉斑玄武岩间过渡系列,具类似的微量及稀土元素比值和稀土元素配分模型,且大离子亲石元素和LREE高度富集。

By studying on isotopic chronology, terrane configuration and imaging logging data, the diabase intrusion in Zhanhua Sag is formed by tholeiite magma emplacing in Shahejie formation stratum on the rift tension background Lower Tertiary in North China. The diabase intrusion of Luo151 is composed possibly of three periods magma emplacement.

根据同位素年代学、岩体形态及成像测井资料的综合分析,沾化地区辉绿岩侵入体为早第三纪华北东部地区大规模裂谷拉张背景下,拉斑玄武岩岩浆侵位于沙河街组地层中形成,研究区内罗151井区辉绿岩体可能由三期岩浆侵位形成。

The greenstone belt is a typical volcanic-sedimentary formation formed by metabasic-acid volcanic rocks and partly metasedimentary rocks. The bimodal volcanic rocks are mainly tholeiite, which transforms upward into calc-alkali volcanic rock series.

绿岩带为典型的变质基性-酸性火山岩及部分变质沉积岩系构成的火山-沉积建造,火山岩以拉斑玄武岩为主,向上过渡为钙碱性火山岩系列,表现为双峰态型特点。

Bovid related to goats but having antelope-like features: mountain goats; gorals; serows; chamois; gnu goats.

与山羊有关的牛科动物,外形象羚羊;石山羊;喜马拉雅斑羚;鬣羚;岩羚羊;扭角羚。

Experiment results indicate that the laser speckle method is effective, its measuring value is about 14% less than the measuring value of dial gauge.

结果表明,激光散斑法用于测定闭合断续节理岩体的位移场效果良好,其测值比对应点千分表测值偏小14%左右。

The results show that the genetic distance between Lumbrineris tetraura and Chloeia parva is 0.044, Lumbrineris tetraura-Chloeia parva and Capitella capitata is 0.057, Lumbrineris tetraura and Marphysa sanguinea is 0.091, which means Amphinomidae is a ingroup taxon of Eunicida.

结果显示,四索沙蚕-梯斑海毛虫分枝的遗传距离为0.004,-小头虫分枝的遗传距离为0.072,四索沙蚕分枝与岩虫分枝的遗传距离比较大,为0.091。

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