ultramafic 中文意思是什麼

ultramafic 解釋
超鎂鐵的
  1. The mafic dikes, volcanic rocks and alkalic - ultramafic dikes are terrestrial, and were all formed in the extensional settings. 3

    三類巖石在侵位結晶過程都不存在明顯的地殼混染。
  2. Therefore, based on the isotopic chorology, petrochemistry, geochemisty and sr, nd, pb isotope, the ph. d dissertation mainly studied some yanshanian mafic dikes, volcanic rocks and alkalic - ultramafic dikes in shandong province

    本論文主要從同位素年代學、巖石化學、地球化學和sr ? nd ? pb同位素方面對山東地區燕山期基性脈巖、火山巖和堿性超基性脈巖進行了系統研究。
  3. Integrating the ages of the mafic dikes and alkalic - ultramafic dikes in this paper, and the known data of mafic dikes and volcanic rocks, at least, there existed four episodes mesozoic crustal extension in shandong province, namely, 80ma, 100ma, 120 ma and140ma, which is similar to that of sc ( south china ), indicating that maybe the effect of the subductio

    但魯東地區在地殼拉張方面可能存在著與魯西地區不同的制約因素：即魯東地區存在拆沉作用和可能存在地慢柱的影響』 、而魯西地區可能受到了郊廬斷裂的左行走滑剪切和拉張活動的影響。
  4. During diagenetic process, there may exist the fractional crystallization of clino - pyroxene, plagioclase, olivine and ti - fe oxide, and the accumulation of olivine. the alkalic - ultramafic dikes formed by low degree partial melting ( 3. 4 % ) of enriched mantle, consist of single olivine pyroxenolite, the dominating olivine fractionation is evident

    成因上為富集地幔部分熔融作用的結果，但在成巖過程中也可能存在單斜輝石、斜長石、橄欖石和ti - fe氧化物等礦物的分離結晶作用。
  5. Subordinate are plagioclase granite dike, layered tonalite, tonalitic conglomeration dispersed in amphibolite, ultramafic rock and metabasalt etc. plenty of igneous accumulated banding were discovered in amphibolite from nujinshan and bujing area some residual clinopyroxene also were found in a few of sample

    超鎂鐵巖多為構造透鏡體分佈於斷裂帶中，多蝕變為蛇紋石巖，在牛井山及布京一帶已發現並圈定了9個巖體（塊） 。
  6. Based on the studies of petrotexture, structural deformation and the relevant metamorphism, this paper indicates that this peridotite massif is the product of ultramafic magma cumulated at the crust - mantle transtion zone and has undergone the early stage of plastic deformation under the condition of granulite facies （ 800 ） and late ductile shearing at amphibolite and greenschist facies in relevance to uplifting

    本文通過巖體的結構、構造變形及相應的變質作用研究，提出了該橄欖巖體是由超基性巖漿在殼幔過渡帶結晶而成，並經歷了與圍巖一致的麻粒巖相（ 800 ）條件下的早期塑性變形以及角閃巖相和綠片巖相退化變質條件下與逆沖上升有關的韌性剪切變形。
  7. Biotite is a subordinate constituent of the mafic and ultramafic rocks generally.

    黑雲母一般是鎂鐵質及超鎂鐵質巖石中的次要成分。
  8. With regard to the oxide minerals, chromite is almost entirely contained in the olivine-rich ultramafic rocks in the lower part of the intrusion.

    關于氧化礦物，鉻鐵礦幾乎全部含于侵入體下部的富橄欖石的超鎂鐵質巖石中。
  9. Ore deposit types related to mafic - ultramafic rocks

    超鎂鐵巖的地球化學及其地質意義
  10. Mafic - ultramafic rocks in permian period and minerogenitic potentialities

    超鎂鐵巖及其成礦問題探討
  11. Lithogeochemistry of the sulfide - bearing mafic - ultramafic rock at baimazhai, jinping, southern yunnan

    超鎂鐵質巖石有關的礦床類型
  12. The accumulation and evolution of metallogenic series of the mafic - ultramafic magmatic deposits in china

    超鎂鐵巖漿礦床成礦系列的聚集與演化
  13. Metallogenic conditions and prospecting for copper - nickel type deposits in mafic - ultramafic rocks in inner mongolia

    超鎂鐵巖體的年代測定及其意義
  14. Geochemical characters of mafic - ultramafic swarms in the baimazhai nickel and copper deposit, jinping, yunnan

    超鎂鐵巖侵入體及銅鎳硫化物礦床的成巖成礦機制
  15. Petrochemistry and ore potentiality of the mafic - ultramafic rocks in the yangliuping cu - ni - pgf mine, sichuan province

    超鎂鐵質巖型銅鎳礦床成礦條件與找礦遠景分析
  16. Ultramafic rock fragments, which almost is altered to ophite, distributed in structural zone and displayed structural lens. so far, 9 fragments were discovered and mapped in nujinshan and bujing area ultramafic rock can be divided two kinds according to it ' s geochemical characteristics. one can be correlated with metaperidotite, which represented residual part that primary pyrolite underwent moderate partial melting, from some representative ophiolite melange in the world

    按超鎂鐵巖類的地球化學特徵可將其劃分為兩類：一類具有較高而穩定的mgo 、較低的al _ 2o _ 3 、極低的cao ， m f值為8 . 0 ? 8 . 4 ，按標準礦物組合進行分類可定為方輝橄欖巖，且均為fa _ （ 100 ） 、 en _ （ 100 ）的鎂質端元組分；可與世界上一些典型的蛇綠巖套中變質橄欖巖進行對比，代表了原始地幔中等部分熔融作用后殘余物。
  17. These studies, therefore, suggest that the songsugou peridotite is not a tectonic massif of the upper mantle but a ultramafic magmatic rock body crystallized in deep crust and tectonically emplaced in the upper crust

    從而證明了松樹溝橄欖巖體並不是上地幔巖石的殘片，而是由巖漿在深部地殼環境下結晶而成並以固態構造侵位於地殼的上部。
  18. Lattice preffered orientation and seismic anisotropy of ultramafic xenoliths in damaping, hebei province

    河北大麻坪超基性巖包體的巖石組構和地震波速各向異性
  19. The lpo of main minerals of ultramafic xenoliths including spinel lherzolite, spinel harzburgite and plagioclasebearing websterite which collected from damaping, hebei province is analyzed and the seismic velocities of the rocks in

    結果表明： 1大麻坪包體中橄欖石與斜方輝石的lpo方位關系與通常所見的100
  20. There are over 30 mafic and ultramafic intrusions in the area and cu - ni sulfide ore bodies were found in no. 1 and no. 7 ultramafic intrusive bodies which exhibit obvious zoning and cumulate texture

    區內出露30多個鎂鐵超鎂鐵質巖體，其中1 、 7號超鎂鐵巖體中賦存銅鎳硫化物礦（床）體。
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