地壳
- 与 地壳 相关的网络例句 [注:此内容来源于网络,仅供参考]
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After studying the fault displacement distribution of Northern Linear Anticlinal Zone and Qiulitage Thrust Front, their mean crustal horizontal shortening rates are estimated as 37.1% and 36% respectively.
断裂位移场的研究表明北部线性背斜带平均地壳水平缩短率为37.1%,丘里塔格前锋带东丘里塔格段的平均地壳水平缩短率为36%。
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The formation and evolution of magma have experienced three stages:① thermal fluid led to higher partial melting of lithosphere mantle and then formed hypoalkaline basalt with saturated initial sulfur when ascending asthenosphere contacted with the lithosphere mantle;② the initial magma intruded into the lower crust to form magma chamber, the crystallization of magma produced stratiform-like cumulate, including olivine, hypersthene, augite, magnetite, and then formed residual gabbroic magma with the participance of crustal material;③ the residual magma and ore-bearing cumulate intruded upward successively to shape original mafic complex rocks in Wuxing when the magma chamber cracked.
岩浆形成与演化经历了3个阶段:①上升的软流圈与岩石圈地幔接触,热流体作用导致岩石圈地幔发生高度部分熔融,形成初始硫饱和的次碱性玄武岩;②初始岩浆上侵,在下地壳形成岩浆房,岩浆结晶作用形成以似层状橄榄石、紫苏辉石、普通辉石和磁铁矿等为主的堆晶岩,在地壳物质的参与下形成残余辉长质岩浆;③岩浆房破裂,残余岩浆和含有熔体(0%)的堆晶岩相先后上侵形成五星原始镁铁质杂岩。
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The results revealed that the crustal structure is very complex and crustal average S wave velocity is to be on the low side.
研究结果表明,研究区地壳速度结构复杂,整个地壳的平均S波速度偏低。
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The results indicated that the formation of fault basin constrained by magnetic crystalline basement. The more complex of the crustal tectonic, the greater the difference mechanical strength between crust media, the smaller thermal water release less, the easier bred major earthquake.6. Mapped the new quaternary tectonic map of four fault basin based on the data of shallow seismic profiles, drilling, and the redrawn fault system divided by the potential data processing, etc.
研究结果表明断陷盆地的形成受磁性结晶基底的制约;地壳结构越复杂,地壳介质之间的力学强度差异越大,热水点年释放量越小,就越容易孕育和发生大的地震。6、利用浅层地震剖面、钻井等资料,并参考重磁划分的断裂系,新编制了山西四个断陷盆地的第四系构造图。
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Based on the detailed contrast between the chondrite normalized REE pattern s and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation, and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.
通过稀土元素配分模式的详细对比和地球化学演化规律的研究,论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异,但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质,从而在一定程度上掩盖了成矿物质的实质来
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The present crustal accretion model at a fast spreading ridge predicts at least an order of magnitude difference on average in the crystallization time, the time for a crystal to cool itself to a given temperature, between the upper gabbros and lower gabbros.
通过海洋地壳生成模型得到的典型快速扩张的太平洋中脊处海洋地壳内的热结构和速度场,推算出海洋地壳内的辉长岩层上、下组的成岩时间存在大于一个数量级的差异(成岩时间是指岩浆降温到某一指定温度时所经历的时间)。
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Most strong earthquakes occurred on the large areomagnetic variation belts. The lateral heterogeneity of basement, which inferred by large areomagnetic variation, vailed stress concentration, earthquakes preparation and occurrence. We also get distribution of crustal thickness and continental deformation features in SYR from gravity data.
康定—绵阳一带刚性基底的阻挡造成了青藏高原下地壳物质向东的塑性流动被迫转向南东—南南东方向,进而造成了川滇菱形块体内广泛的地壳增厚,布格重力异常等值线呈向南东伸出的舌状是其地壳增厚作用的直观反映。
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The authors think that the magmas of the intermediate-acid volcanic rocks were derived from basaltic magmas of the lower crust and are mixed magmas produced by the increase of geothermal gradients due to diapiric injection of basaltic magmas and partial melting of intermediate-basic metamorphic igneous rocks in the lower crust,and that they resulted from a series of tectonomagmatic activities that took place when the closing of the Mongolian-Okhotsk sea trough and continent-continent collision caused crustal thickening and brought about the formation of the Hinggan-Mongolian orogenic belt in the process of oblique subduction of the Paleo-Pacific plate beneath the Siberian plate.
中文摘要:通过对大兴安岭北段晚侏罗世吉祥峰组中酸性火山岩的岩石地球化学研究,发现其中存在高Sr低Y型火山岩,即文献上所称的埃达克质岩,笔者认为中酸性火山岩的岩浆起源于下地壳玄武质岩浆,为玄武质岩浆底辟上侵引起地热梯度增加、下地壳中基性变质火成岩石部分熔融的之混合岩浆,是古太平洋板块向西伯利亚板块斜向俯冲过程中,蒙古鄂霍次克海槽封闭,陆壳碰撞使地壳加厚,形成兴蒙造山带时所引起的一系列构造岩浆活动。
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Important significance of regional tectonic regime to metallogenic capacity of Indosinian and Early Yanshanian granites in southeastern Hunan:A case study of Qianlishan and Wangxianling plutons;2. Yanshanian movement and conversion of tectonic regime s in East Asia;3. The Sm-Nd isotopic results indicate that the Archean tectonic regime and crust growth in Northern China Platform can be divided into two stages.
Sm-Nd同位素研究结果显示,华北地台太古宙构造体制与地壳生长可分为二个发展阶段:2800Ma以前,地壳以幔源物质垂向增生为主;进入2800Ma以后,地壳物质开始进入地幔,并以水平运动为主要构造体制,反映板块构造机制在太古宙晚期地质演化中具有十分重要的作用。
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The relationship between mantle fluid and U ore-forming was studied preliminarily,according to the results,the author considered theΣCO_2 of mineralizer and heat source came from mantle,which is because upwelling mantle forced by crustal extention and deep-seated faulting produced melt blending with lower crust,during this process,mantle provided the heat and releaseΣCO_2 to crust through outgassing.U mainly came from mantle-curst fluid formed by mantle-curst melt blending and the wall rock during fluid uplift.H_2O mainly generated from mantle fluid and the wall rock during mantle fluid uplift,and partly from atmospheric water in the late period of ore-forming.
初步探讨了地幔流体与铀成矿作用的关系,认为矿化剂∑CO_2和热源来源于地幔,是地壳拉张和深大断裂活动导致部分熔融地幔上涌,与下地壳产生壳幔混熔作用,在混熔过程中提供热量和向地壳&去气&释放∑CO_2;U主要来源于壳幔混熔形成的壳幔混合流体和流体上升途经的围岩;H_2O主要来源于地幔流体、地幔流体上升途经的围岩,在成矿晚期有部分来源于大气降水。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。