The geochemical characteristics of gabbros from the jinshajiang ophiolitic melange indicate that they were derived from a mantle source different from that of volcanic rocks , which may be a product in the ocean rift in the earlier stage 东竹林蛇绿混杂岩中辉长岩地球化学特征表明，它与火山岩不同源，可能是洋盆裂谷初期的产物。
The real part of the complex impedance decreases with frequency ; the imaginary part of the complex impedance increases with frequency to the maximum , and then decreases with frequency ; and phase angle decreases with frequency increasing 结果发现辉长岩复阻抗的实部随频率的增加而减小，而虚部随频率增加先增大后减小；相角随频率增加而减小。
Guided by theory and method of unit - superunit mapping in the granite area , study the lithology , lithochemistry , trace elements , and rare earth elements , er . of the wuzengsu gabbro body , and subdivide the body into four units 摘要借鉴花岗岩区单元超单元填图理论方法，通过对乌增苏辉长岩体岩石学、岩石化学、微量元素、稀土元素等特征的研究，将岩体划分为四个单元。
Although scientists had postulated this phase of lunar history based on the apollo samples , the proof came from the clementine and lunar prospector data , which indicated the global distribution and large abundance of anorthosite 虽然科学家根据阿波罗太空船所采集的样本提出了关于月球这段历史的假说，但是证据却来自克莱门蒂号和月球探勘者号的观测，显示斜长岩丰富且分布全球。
Abstract : the paper presents distribution of nepheline syenites and theirtectonic settings , rock assembladges , mineral associations and geochemisical characteristics , discusses the relationship between the minerological characteristics of main minerals and their host rock 文摘:介绍了中国霞石正长岩的分布、产出的大地构造环境、岩体的岩石组合、岩石的地球化学和造岩矿物组合特征。
Because the only source of heat that could melt the entire moon would be a very rapid accumulation of small bodies , the presence of large quantities of anorthosite in the lunar crust supports the theory that the moon coalesced from the debris of a planetary collision 能熔化整个月球的唯一热源是小型天体的快速聚集，因此月球地壳内大量的斜长岩支持了月球是由行星际遗屑撞击合并而成的理论。
The lithologies of intrusive rocks were re - determined , for example , the rock previously named as diorite in southern area was renamed as gabbro , and the dike rock distributed along nnw as spessartite which was related to formation of the zhulazaga gold deposit to some extent 对矿区各类侵入岩重新厘定了它们的岩性特征，如矿区东南部原闪长岩重新确定为辉长岩，确定nnw向分布的脉岩为闪斜煌斑岩，且认为后者和朱拉扎嗄金矿的形成有一定的关系。
The mafic dikes also formed by the partial melting of enriched mantle , include gabbro , diabase ( distributing mainly in luxi ) and lamprophyres ( camptovogesite , odinite and hornblende lamprophyres ) ( mainly in ludong ) . for all the rocks , crustal contamination was absent when magma emplaced . 2 基性脉岩主要包括辉长岩、辉绿岩(主要分布在鲁西地区)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) (主要分布在鲁东地区) ，都为富集岩石圈地幔部分熔融的产物。
Geochronological , geochemical and sr - nd isotopic data are reported for the alkaline igneous rocks ( syenites and zhaibei aluminous a - type granite ) and chebu gabbro in southern jiangxi province . shrimp zircon u - pb dating results indicate that the quannan syenite , zhaibei a - type granite and chebu gabbro formed during the early yanshanian period 对赣南燕山早期的富碱火成岩(正长岩和寨背铝质a型花岗岩)和车步辉长岩进行了详细的年代学、元素和sr - nd地球化学研究。
The alkaline basalts in southern hunan are suggested to have formed by small degrees of decompression melting of the asthenosphere mantle during the initial extension . the transitional ( the chebu gabbro ) and tholeiitic basaltic magmas were generated by relatively larger degrees of partial melting of the mantle 在裂谷初期，软流圈地幔的小比例部分熔融形成碱性玄武岩(湘南) ，在裂谷拉张作用比较强、地幔部分熔融比例比较大时形成赣南和湘南的过渡型(车步辉长岩)及拉斑质玄武岩。
