metasomatic 中文意思是什麼
metasomatic
解釋
換質的-
Laiwu hydrothermal metasomatic iron deposit is located at contact zone of ordovician carbon - ate rock ( majiagou formation ) and late yanshanian diorite or nearby
摘要萊蕪接觸交代熱液鐵礦賦存於奧陶系馬家溝組碳酸鹽巖與燕山晚期閃長巖的接觸帶及其附近。 -
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 、礦體頂、底板圍巖（石榴石黑雲母片巖、鈉長黑雲母片巖等）的原巖為堿性火山巖（粗面安山巖） ，相對富集大離子親石元素ba 、 cs 、 rb 、 k 、 lree及貧zr 、 sr 、 ti 、 hf 、 hree ，為早元古代末期-中元古代早期交代富集地幔低程度部分熔融所形成的堿性火山巖。 -
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
巖石的異常結構構造十分發育，礦物之間自形程度差異顯著，常見包晶反應、包含結構、交代邊、熔蝕邊、交代蠶食的港灣狀結構構造及交代縫合線、礦物鑲邊、斜長石異常環帶和礦物殘留等，多見指示巖漿混合的標志性礦物針狀磷灰石。 -
The auther regards the stratiform green - rock as a kind of exhalative sedimentary rock which is different from contact - metasomatic skarn
此類綠色巖是一類區域性展布的特殊類型的噴流巖。 -
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
對丁欽弄、加多嶺、仁達等典型礦床的研究表明，它們均為形成於陸內裂谷作用階段的接觸交代型礦床，陸內造山期的構造?巖漿?熱液作用疊加改造了先成礦體，礦床空間分佈受北東向復合侵入巖帶控制。 -
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 、朱拉扎嘎金礦的礦石類型眾多，有噴流沉積型、蝕變火山巖型、蝕變變質砂巖型、交代巖型和硫化物石英脈型，其中對礦床或礦體貢獻最大的是蝕變變質砂巖型，其次是蝕變火山巖型和交代巖型。 -
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
燕山地區中酸性火山巖則來源於地殼，與玄武質巖漿底侵作用關系密切。 3燕山地區火山巖源區組分在時空上具有一定的演化規律：在時間上，從早期俯沖交代地幔及emi的參與，經中期以emi佔主導及極少量俯沖交代組分的階段，演變到晚期以emi為主，可能有少量軟流圈貢獻的組分，再到晚白堊世以軟流圈為主。 -
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燕山地區早侏羅世中基性火山巖來自於早期俯沖交代的古老巖石圈地幔部分熔融作用，俯沖交代作用可能與早期古亞洲洋閉合事件有關；晚侏羅世中基性火山巖更多來自於類似於emi型地幔源區的部分熔融作用，俯沖交代成分貢獻很弱；早白堊世基性火山巖則來自於emi型地幔源區的部分熔融作用。 -
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
對賀蘭山中段黃旗口元古代地層中存在於花崗巖中「層理」 、 「殘留體」等地質現象進行研究，認為該地區花崗巖是由元古代沉積巖經過變質交代作用而形成的，這種變質交代作用可能發生在古元古代，在秦祁賀三叉裂谷活動之前地殼變薄的大地構造環境下形成。 -
The igneous bodies are mainly metasomatic type in china. through zhongtiao circle to yantsi circle, himalaya circle, the magma activitie
與基性、超基性巖有關的銅鎳硫化物礦床，從地球物理場上，一般與航磁的感磁場有關。
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