The auther regards the stratiform green - rock as a kind of exhalative sedimentary rock which is different from contact - metasomatic skarn 此类绿色岩是一类区域性展布的特殊类型的喷流岩。
2.
The igneous bodies are mainly metasomatic type in china . through zhongtiao circle to yantsi circle , himalaya circle , the magma activitie 与基性、超基性岩有关的铜镍硫化物矿床，从地球物理场上，一般与航磁的感磁场有关。
3.
Laiwu hydrothermal metasomatic iron deposit is located at contact zone of ordovician carbon - ate rock ( majiagou formation ) and late yanshanian diorite or nearby 摘要莱芜接触交代热液铁矿赋存于奥陶系马家沟组碳酸盐岩与燕山晚期闪长岩的接触带及其附近。
4.
4 . the ore type is multitudinous in zhulazaga gold deposit , including exhaust - sediment type , alteration volcanic rock type , alteration metamorphic sandstone type , metasomatic rock type and sulfide quartz vein type , of which the strongest one contributed to deposit was the alteration metamorphic sandstone type , and the secondary one is alteration volcanic rock and metasomatic rock type 4 、朱拉扎嘎金矿的矿石类型众多，有喷流沉积型、蚀变火山岩型、蚀变变质砂岩型、交代岩型和硫化物石英脉型，其中对矿床或矿体贡献最大的是蚀变变质砂岩型，其次是蚀变火山岩型和交代岩型。
5.
However , in the area with strong magma mingling , there are widespread abnormal fabrics , distinguished differences in the idiomophic - textures and the peritectic reaction , poililitic texture , metasomatism among the minerals , metasomatic border , embayment , rimmed structure , abnormal plagioclase zoning , relict fabric as well as the acicular apatite are very common 岩石的异常结构构造十分发育，矿物之间自形程度差异显著，常见包晶反应、包含结构、交代边、熔蚀边、交代蚕食的港湾状结构构造及交代缝合线、矿物镶边、斜长石异常环带和矿物残留等，多见指示岩浆混合的标志性矿物针状磷灰石。
6.
The mantle source for the mesozoic mafic volcanic rocks in yanshan area exhibit transition character in space and time : the mantle source components vary from subduction - related metasomatic components and emi components through dominant emi components and slight subduction - related metasomatic components to emi components ; spatially , mantle source of the volcanic rocks show a regular variation trend from an enriched lithospheric mantle with emi - like signatures in the western shandong province through emi and / or subduction - related metasomatic components in yanshan area to subduction - related metasomatic lithospheric mantle in the hinggan - mongolian orogen 燕山地区中酸性火山岩则来源于地壳，与玄武质岩浆底侵作用关系密切。 3燕山地区火山岩源区组分在时空上具有一定的演化规律：在时间上，从早期俯冲交代地幔及emi的参与，经中期以emi占主导及极少量俯冲交代组分的阶段，演变到晚期以emi为主，可能有少量软流圈贡献的组分，再到晚白垩世以软流圈为主。
7.
2 . early jurassic mafic volcanic rocks in yanshan area were derived from decompression melting of an ancient continental lithospheric mantle , which had been previously metasomatized by subducted slabs during the closure of paleo - asian ocean ; the mantle source of late jurassic mafic volcanic rocks were contributed by dominant emi and insignificant subducted metasomatic components ; early cretaceous mafic volcanic rocks were derived from decompression melting of an ancient continental lithospheric mantle ( emi ) . with regard to the basaltic lavas , the felsic rocks resulted from partial melting of continental crust , which closely related to basaltic underplating 2燕山地区早侏罗世中基性火山岩来自于早期俯冲交代的古老岩石圈地幔部分熔融作用，俯冲交代作用可能与早期古亚洲洋闭合事件有关；晚侏罗世中基性火山岩更多来自于类似于emi型地幔源区的部分熔融作用，俯冲交代成分贡献很弱；早白垩世基性火山岩则来自于emi型地幔源区的部分熔融作用。
8.
Based on the studies of the " bedding " and " sedimentary relic " of granite in the proterozic strata at huangqikou of the middle part of helanshan , the authors think that the proterozoic granite in the area was produced by metasomatic metamorphism , which formed during the time when the earth crust became thinner 对贺兰山中段黄旗口元古代地层中存在于花岗岩中“层理” 、 “残留体”等地质现象进行研究，认为该地区花岗岩是由元古代沉积岩经过变质交代作用而形成的，这种变质交代作用可能发生在古元古代，在秦祁贺三叉裂谷活动之前地壳变薄的大地构造环境下形成。
9.
And the generalized homothetic composite action of metallogenic subsystems mentioned above formed the multiple - composite metallogenic system of the jiangda tectonic belt . the typical ore deposits of jiangda tectonic belt , such as dingqinnong , jiaduoling , renda etc , are contact metasomatic type deposits formed intracontinental rifting stage , and the tectonic - magmatic - hydrotherm of intracontinental orogenic stage superposed and rebuilt some preexistent ore body . their space distribution is controlled by composite intrusive rock belt of ne direction 对丁钦弄、加多岭、仁达等典型矿床的研究表明，它们均为形成于陆内裂谷作用阶段的接触交代型矿床，陆内造山期的构造?岩浆?热液作用叠加改造了先成矿体，矿床空间分布受北东向复合侵入岩带控制。
10.
2 both the hanging wall and the footwail rock of ore bodies are garnet biotite schist , protoliths are alkaline volcanic rocks ( tracyh andesite ) . according to characteristics of trace elements assemblages and the setting of tectonics , these alkaline volcanic rocks were derived from the lower degree melting of metasomatic and enriched mantle ( eml ) in the initial stage of middle proterozoic epoch . they strongly enriched in large ion lithophile elements ( lile ) , such as ba 2 、矿体顶、底板围岩(石榴石黑云母片岩、钠长黑云母片岩等)的原岩为碱性火山岩(粗面安山岩) ，相对富集大离子亲石元素ba 、 cs 、 rb 、 k 、 lree及贫zr 、 sr 、 ti 、 hf 、 hree ，为早元古代末期-中元古代早期交代富集地幔低程度部分熔融所形成的碱性火山岩。
