1) ophiolites of Xiaohuangshan
小黄山蛇绿岩
2) small ocean basin ophiolite suit
小洋盆蛇绿岩套
1.
During the Cambrian, the alkaline and tholeiitic basalt, and also small ocean basin ophiolite suit were formed under an extension environment.
寒武纪拉张形成碱性、拉斑玄武岩系列及小洋盆蛇绿岩套,奥陶纪闭合形成钙碱性与钾玄岩系列中酸性火山岩及火山弧岩套,并见高镁安山岩。
3) Guoganjianian Mountain ophiolite
果干加年山蛇绿岩
4) ophiolite
[英]['ɔfiəlait,'əufiəlait] [美]['ɑfiə,laɪt, 'ofi-]
蛇绿岩
1.
Ophiolite mapping using ASTER data:a case study of Derni ophiolite complex.;
基于ASTER数据的蛇绿岩组分识别:以德尔尼矿区为例
2.
A mineral assemblage of sulfides and sulfo-arsenides from the ophiolite mantle in Tibet;
来自蛇绿岩地幔的硫(砷)化物矿物组合
3.
Dating for zircons of gabbro from Kulehu ophiolite,southern Tianshan,and its geological implication;
南天山库勒湖蛇绿岩锆石年龄及其地质意义
5) Ophiolite belt
蛇绿岩带
1.
It has been found and determined that the Yarlung Zangbo suture zone is a complete and classical suture zone composed of the Yarlung Zangbo ophiolite belt, mélange belt and high-pressure metamorphic belt, and the structures, compositions and characteristics of all the belts are depicted.
发现并确定雅鲁藏布缝合带为由雅鲁藏布蛇绿岩带、混杂岩带、高压变质带组成的一个完整而又精典的缝合带,精细刻画了各带的结构、组成及特征。
2.
This paper describes Early Car-boniferous and Early Permian radiolarian assemblages from the recently discovered XijinUlan-Gangqiqu ophiolite belt in Kekexili, Qinghai Province.
elongata,标本采自青海可可西里新发现的西金乌兰—冈齐曲蛇绿岩带。
6) ophiolite suite
蛇绿岩套
1.
This is the first report on the ophiolite suite, which consists of metasediment, meta-basalt, metadiabase, metagabbro, metapyroxene and metasilicith, in the Wenjiashi area, northeastern Hunan.
在湘东北文家市首次识别出蛇绿岩套残片 ,它由变沉积岩、变玄武岩、变辉绿岩、变辉长岩、变辉石岩类及变硅质岩组成。
补充资料:蛇绿岩
蛇绿岩 ophiolite 一组由蛇纹石化超镁铁岩、基性侵入杂岩和基性熔岩以及海相沉积物构成的岩套。又称蛇绿岩套。由法国A.布龙尼亚于1827年提出,曾音译为奥菲奥岩。 蛇绿岩的代表层序自下而上是:橄榄岩、辉长岩、席状基性岩墙和基性熔岩以及海相沉积物,其中橄榄岩和辉长岩在层序上可以重复多次。在构造运动中,由于上覆岩层中水的释放,橄榄岩普遍蛇纹石化,密度降低,易于抬起和塑性变形,发生显著构造位移。上述火成岩之上的沉积剖面为泥质和砂质岩石,可含燧石和石灰岩。世界各地蛇绿岩层序有很大的相似性,可与现代洋底层序对比,所以一般认为蛇绿岩是贴附于大陆边缘或岛弧上的洋壳碎片。然而,由于洋壳的消减作用、构造侵位或逆掩推覆,使蛇绿岩层序的完整性受到破坏,在某些地段只能见到该层序的部分组成或杂乱堆积的混杂岩块。与蛇绿岩深成岩浆作用有关的矿产是铬、铂、金、镍等,在低凹地可形成铁、铜、锰矿床。蛇绿岩中普遍伴生的蛇纹石,是重要的非金属矿产。 |
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