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Mafic granulite and gabbro xenoliths are also found in the same kimberlitic pipes from the Eastern-North China platform, and suggest that multi-accretion events took place. The gabbro was formed lighly earlier with the host kimberlite. The underplating of the mafic magmas was related to the continental orogeny in the late middle-Ordovician Period.

金伯利岩中强烈变质的基性麻粒岩以及变质不彻底的粗粒辉长岩在同一岩管中共存,表明华北古老岩石圈地幔所发生的多次增生作用事件,特别是后者的变质不彻底变质作用暗示其形成时代与金伯利岩相近,这种基性岩浆的底侵作用与华北地台中奥陶世晚期的造陆抬升有关。

Among other things, the protolith of mica schist is claystone, those of quartz schist and granulitite are graywacke or subgraywacke and those of amphibolite, hornblende schist and garnet amphibolite are basic volcanic rocks.

斜长角闪岩、角闪片岩和榴闪岩的原岩为基性火山岩。

The Huashan—Guposhan granitoid belt consists of Tong'an, Huashan, Niumiao, Jinziling, Wuyangshan, Lisong and Guposhan granitoid bodies. Petrographycally, they are diorite, quartz monzonite, monzonitic granite and syenogranite. Dark mafic enclaves are very common. Their major emplacement ages are 160~163 Ma.

花山-姑婆山花岗质杂岩带由同安、花山、牛庙、金子岭、乌羊山、里松和姑婆山等岩体所组成,岩性为闪长岩、石英二长岩、二长花岗岩和正长花岗岩等,富含中基性暗色包体,主要侵位时代为160~163 Ma。

There are two kinds of spinels in a granulite terrain of Yushujgou, South Tianshan Mountain. One occurs in the intermediate and basic granulite units and is characterized by enriched Al and poor Cr, belonging to Al_spinel. In thin sections it shows dark green color and subhedral to anhedral form, and coexists with other metamorphic minerals, suggesting a neogenic metamorphic mineral of granulite facies. The other occurs in the adjacent ultramafic rock unit, belonging to Cr_spinel. In thin sections, it is dark brown in color and is scattered among olivine, clinopyroxene and orthopyroxene as irregular grains, indicating a stable residual mineral in the process of granulite facies metamorphism.

新疆榆树沟麻粒岩地体中发育两类尖晶石:一类见于中、基性麻粒岩体中,其化学成分富 Al贫 Cr ,属铝尖晶石,镜下为深绿色,呈半自形至他形粒状,与其它变质矿物共生,表现为麻粒岩相的新生变质矿物;另一类发育在空间上与麻粒岩体紧密相邻的超镁铁质岩体中,为铬尖晶石,镜下为深褐红色,呈不规则粒状分布于橄榄石、斜方辉石和单斜辉石之间,为麻粒岩相变质过程中稳定的残余矿物。

The mafic dikes also formed by the partial melting of enriched mantle, include gabbro, diabase and lamprophyres (camptovogesite, odinite and hornblende lamprophyres).

基性脉岩主要包括辉长岩、辉绿岩和煌斑岩(以斜闪煌斑岩为主,同时含部分拉辉煌斑岩和角闪煌斑岩),都为富集岩石圈地幔部分熔融的产物。

The petrology and geochemistry indicate that the protoliths of aluminum-rich gneisses are aluminum-rich pelitic and pelitic arenaceous sedimentary rocks, the protoliths of basic granulites are continental tholeiitic basalts. Therefore, the khondalite series may be produced at continental margin.

岩石学及地球化学的初步研究表明富铝的片麻岩的原岩为富铝的泥质和泥砂质沉积岩,所夹基性麻粒岩的原岩可能为大陆拉斑玄武岩,这套孔兹岩系的原岩可能形成于大陆边缘环境。

Based on zircon SHRIMP U-Pb, Sm-Nd and Ar-Ar isotopic datings and trace elements data of zircon and whole rock of the mafic granulite from Huilanshan in Lotian doming, we concluded that the protolith of the mafic granulite shoud be the Neoproterozoic mafic rocks, the granulite facies metamorphism of this rock was occurred at 124.0?.

罗田穹隆惠兰山基性麻粒岩的锆石U-Pb、Sm-Nd和Ar-Ar定年及锆石和全岩微量元素地球化学工作证明该麻粒岩的原岩形成于晚元古代,其麻粒岩相变质作用发生在124.0?。

Based on the detailed study of seismic tomography image in South China, and according to the geotectonic environment and shape and heat of asthenosphere upwelling, we divided the structure of lithosphereasthenosphere at the Mesozoic upper mantle of Eastern China into three types.(1)Continental platform area (North China platform and Yangtze platform): asthenosphere upwelled along paleorift; over the plume head, the granitic rocks of crust and mantle mixed and correspondingly, Au, Cu, Mo, PbZn, etc. mineralizationconcentrated regions were formed; and at the steep contact belt of asthenosphere and the thick area of lithosphere, mediatebasic complex was formed.(2)Central area of fold zone: asthenosphere was "recumbent" at suitable depth, with adequate heat and in a great extent; by heat conduction, the interior of partial crust remelted, and the crustsource granitic rocks, and correspondingly, W, Sn and rare elements mineralizationconcentrated regions were formed.

在深入研究华南地震层析成像的基础上,按照大地构造环境和软流圈上涌形状和热度,将中国东部中生代上地幔中岩石圈软流圈构造划分为3类:(1)陆台区,软流圈沿古裂陷上涌,其柱头上方形成幔壳混熔花岗质岩及相应Au、Cu、Mo、PbZn等矿集区,并于软流圈与岩石圈厚区之陡接触带形成中基性杂岩及相应Fe矿集区;(2)褶皱带中心区,软流圈在适当深度、热量充足、较大范围内&平卧&,因热传导而致使地壳内物质部分重熔,形成壳源型花岗质岩及相应的W、Sn、稀有元素矿集区;(3)褶皱带边缘区(大兴安岭南部及华南南缘),在软流圈上涌柱上方形成幔源或幔壳混熔的花岗质岩,相应为Cu、Au、PbZn、Mo、Ag矿集区。

Method] 5 matrices: M1(50% peat + 50% perlite),M2(40% peat + 60% perlite),M3(50% peat + 50% chestnut soil),M4(40% peat + 60% chestnut soil) and M5(100% peat) used for Euonymus fortunei cutting in container were tested and the effect of the different matrices on the rate of callus induction and root growth,the length and number of root,and the growth amount of Euonymus fortunei was investigated.[Results] The results showed that the best effect on Euonymus fortunei cutting was from the M1,in which,the rate of root growth,callus induction,the length of root and the number of new branch were 87%,88%,68.0 mm and 4.6 branches,respectively.

方法] 采用5种基质配比,分别为M1(50%泥炭+50%珍珠岩)、M2(40%泥炭+60%珍珠岩)、M3(50%泥炭+50%栗钙土)、M4(40%泥炭+60%栗钙土)、M5(100%泥炭)对扶芳藤进行容器扦插育苗试验,对不同基质引起的扶芳藤愈伤率、生根率、根长、单株根系数目、新生枝数及新生枝生长量进行调查分析,[结果]结果表明,基质M1中扦插的扶芳藤生根率、愈伤率最高,分别为87%和88%;根长最长,为68.0 mm;平均新生枝数最多,为4.6条,效果最佳。

Making use of petrochemical analysis and petrography,Werecover ancient rock's construction on the Archaean Era,Through the practice,We find bedrock consists of a set of neutrality and basis volcanic rock ,volcanoclastic rock ,deposition rock and partial volcanic rock with acidity.

利用岩石化学分析法并结合岩相学等特点将太古宙变质岩进行了原岩建造恢复,认为太古宙原岩为一套中、基性火山岩、火山碎屑岩和沉积岩,局部夹酸性火山岩建造。

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