单成因的
- 与 单成因的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Based on the petrological and geochronological study of metamorphic complexes from the Grove Mountains, the following conclusions are reached.(1)Exsolution texture is widely found in clinopyroxene in mafic granulites. A peak metamorphic temperature of 850 C was obtained from the reintegrated compositions of exsolved clinopyroxene. The preservation of augite megacrysts suggests a single episode of high-grade metamorphism for the Grove Mountains.(2)The compositional comparison of garnet from pegmatites with that from country rocks demonstrates that garnet in pegmatites is of xenocryst origin, and late amphibolite facies metamorphism does not occur in this area.(3)The Pan-African charnockite and post-tectonic sheet-like granite were first recognized in East Antarctica. Their occurrences suggest a collisional orogeny during the Pan-African time.(4)The SHRIMP U-Pb zircon dating on various rock types indicates that the major metamorphism in the Grove Mountains occurs at c. 550 Ma, and the tectonothermal evolution terminated at c. 500 Ma. The Grenvillian granulite facies metamorphism did not develop in the studied area.(5)The Prydz belt, the second Pan-African suture within the Gondwana suppercontinent, was further comfirmed based on this study. The Gondwana suppercontinent was not formed by the simply juxtaposition of East and West Gondwana, but by the collision of several blocks during the Pan-African time.
本项目通过格罗夫山地区高级变质杂岩的变质岩石学和同位素年代学研究,获得如下重要认识:(1)发现辉石出溶结构,由此获得峰期变质温度为850 C,并根据火成普通辉石的识别确定该区只存在单相麻粒岩相变质;(2)通过伟晶岩中石榴石斑晶与围岩中石榴石的对比研究提出了石榴石的捕虏晶成因,进而确定该区不存在晚期角闪岩相变质作用;(3)在东南极首次识别出泛非期紫苏花岗岩和后构造层状花岗岩,为泛非构造热事件的碰撞造山成因提供了重要佐证;(4)对不同岩石类型的锆石SHRIMP定年精确地限定了格罗夫山地区主期变质作用发生于泛非期,~550 Ma,热事件结束于~500 Ma,年代学数据没有揭示在该区存在格林威尔期麻粒岩相变质作用的迹象;(5)进一步确认了东南极内部普里兹带的存在,它属于冈瓦纳超大陆内部的第二条泛非期缝合带,据此认为冈瓦纳超大陆并不是由东、西冈瓦纳陆块的简单拼合而成,而是多个不同块体拼合的结果。
-
Therefore, the research freight bill letter of credit risk produces and the origin carries on the thorough analysis to it, pursues the corresponding solution risk the countermeasure then to become an imminent topic.
因此,研究跟单信用证风险产生的成因并且对其进行深入的分析,找寻相应处理风险的对策便成为一个迫在眉睫的课题。
-
On the basis of theory analysis its status and existing problems and cause formation of high-skilled talents in Changqing Oilfield are dissected by data and comparison, indicating that there exist several problems like total amount lack, proportion unbalance, apparent framework contradiction and severe prediction of persons' luck in a given year, and then pointing out that the cause formation is difference between knowledge and concept, disseverance of personnel manage system, limitation of distribution stimulation, deficient training input and un-adapted training pattern and singular channel of high-skilled talents in Changqing Oilfield.
在理论分析的基础上,通过数据分析、对比分析对XX油田高技能人才的现状、存在问题及其成因进行了剖析,指出XX油田高技能人才存在总量短缺、比例失衡、结构性矛盾突出、流失较为严重等问题,并分析指出成因主要是:认识和理念上的差异、人事管理制度的割裂、分配激励的缺陷、培训投入不足和培训模式的不适应、高技能人才补充渠道单一等。
-
A surface-modified adsorbent is a support bearing at the surface of a chemically bonded "monomolecular" layer of adsorbing groups, which provides fast kinetics of the recovery and elution of the molecules and ions under study.5–9 SPE by use of alkyl-bonded silica gels has been widely applied in the environmental analysis of polyaromatic hydrocarbons, pesticides, substances of biochemical origin and other organic compounds.
表面改性吸附剂是一种载体,它负载在一层化学键合的单分子吸附性官能团的表层,为所研究的分子和离子的回收和洗脱提供了快速动力。使用含烷基的硅胶的SPE技术已经被广泛应用到芳烃聚合物、农药、生物成因物质以及其他有机化合物的环境分析中。
-
In this research project, we have got a series conclusions:(1) there is no excess argon in the high-pressure white micas being in the orthogneiss;(2) The distribution of excess argon in eclogite is positive correlative with the ratio of Mg/, but negative with the ratio of Na/;(3) The in-situ analyses by using the method of laser probe 39Ar-40Ar show that the age radius from central to margin in a single grain of high-pressure white mica in eclogite;(4) There is no any evidence to prove that the excess argon in eclogite comes from fluid;(5) The excess argon in eclogite inherited from primitive rock during high-ultra high pressure metamorphism;(6) There is no excess argon in the eclogite when its surrounding rock is carbonate.
本项目用综合手段,研究了高压白云母中过剩氩的来源、赋存、分布与岩性、产状、矿物元素和矿物显微结构之间的相关关系,以确定过剩氩在高压白云母中赋存的主要控制因素。初步得出了以下结果:1、高压变质的正片麻岩中的白云母中不含过剩氩;2、高压白云母中过剩氩的赋存和Mg/有着正相关关系,而和Na/呈负相关;3、激光微区氩-氩分析表明,榴辉岩中的单颗粒多硅白云母存在年龄梯度;4、初步否定了高压白云母中过剩氩来自于流体的说法;5、初步认定,榴辉岩中多硅白云母中过剩氩主要是在高压-超高压变质过程中由内部继承的;6、在阿尔金及柴北缘等地围岩为碳酸岩的榴辉岩中的高压白云母不含过剩氩。上述研究结果将推动过剩氩成因研究走向深入。
-
The deep origin of Kangjinla podiform chromitite is suggested by: that for the Kangjinla chromitite and the mantle peridotite rocks, the compositions of the chrome spinel, olivine and clinopyroxene are rather different, which indicates that the chrome spinel in the chromitite is neither the simple concentration of that in the host rocks nor with certain genic relation with mantle peridotite. Though the chromitite might be exotic for host rocks, both of them were carried from deep mantle to the shallow place by mantle plum.
康金拉铬铁矿石与矿体围岩地幔橄榄岩的铬尖晶石、橄榄石和单斜辉石等成分方面明显不同,认为矿石铬尖晶石并非是由副矿物铬尖晶石富集而成,与地幔橄榄岩也不存在成因联系,认为豆荚状铬铁矿床对于近矿围岩地幔橄榄岩而言为外来体,但两者可能均是由地幔深部被地幔柱带到上部。
-
As for sulfur isotopic composition, the general feature of two types deposits is a single peak distribution. All δ〓s values of the ores are near zero. The difference of different deposits lies in that the δ〓s values (1. 8-5. 2‰) of LDT are of small positive value and are similar to that of the metamorphic rocks and dioritic porphyrites in the region while the δ〓s values of SDT are always near zero. Features above suggest that two types of deposits have closely genetic relationship to metamorphic and magmatic rocks.
硫同位素组成上,两类金矿床共同的特征是均具有明显的单峰塔式效应,且δ〓S值均位于0值附近不大的变化范围内;不同的是,近程式金矿的δ〓S平均值均接近于0,与该类金矿具密切成因联系的岩体的δ〓S值也接近于0值,而远程式金矿的δ〓S平均值均为小的正值,变化范围为1.8~5.2‰,区内太古代变质岩及矿区内闪长玢岩脉的全岩δ〓S值位于这一区间内,反映了远程式金矿床其成矿物质不仅来源于重熔岩浆,同时还可能部分来源于变质岩围岩。
-
objectiveto seek a kind of effective surgical operation method to treat the buttock lax bymonofilament polypropylene synthetic nonabsorbable cogs thread.methods to research and analysis the 16 casesof buttock-pexy with liposuction, fat granule injection grafting, the reshape of muscular, musculoaponeurotic and cutaneous by monofilament polypropylene synthetic nonabsorbable cogs thread in recent 2 years.resultswhen we improved the uses of monofilament polypropylene synthetic nonabsorbable cogs thread in buttock-pexy plastic and aesthetic surgery, the scar complications reduced and the good effects received.
短跑途中跑臀部后坐跑动动作的形成因。。。目的:探讨应用单丝聚丙烯合成非吸收齿状线进行臀部松垂美容整形术。方法:对近两年16例应用单丝聚丙烯合成非吸收齿状线结合肿涨皮下吸脂技术、脂肪细胞转移技术、肌肉、筋膜及皮肤重塑技术进行臀部松垂美容整形术的应用进行总结与分析。结果:改进单丝聚丙烯合成非吸收齿状线应用方法后,臀部松垂美容整形术的瘢痕并发症明显减少,效果加强,外表瘢痕小。
-
Therefore, the research freight bill letter of credit risk produces and the origin carries on the thorough analysis to it, pursues the corresponding solution risk the countermeasure then to become an imminent topic.
因此,研究跟单信用证风险产生的成因并且对其进行深入的分析,找寻相应解决风险的对策便成为一个迫在眉睫的课题。
- 推荐网络例句
-
Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
-
In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
-
The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。