metamorphic grade 中文意思是什麼
metamorphic grade
解釋
變質程度- metamorphic : adj. 1. 變化的，變形的；改變結構的。2. 【地質學；地理學】變成的，變性的，變質的。
- grade : n 1 等級，級別；階段；程度，標準，水平。2 〈美國〉（中小學的）年級；某一年級的學生。3 〈pl 〉 〈...
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Abstract : to the principle and project that tu guangazhi proposed in 1990, the gold ore deposits in qinling ( shaanxi ) may be classified into fouowing types : archean high - grade gneiss type, fine grained fragmental rock - carbonate rock - silicilith type, metamorphic fragmental rock type, volcanic rock type, explosive breccia type, intrusive rock exo - and endo - contact zone type. inthis paper, the geological characteristics, metallogenic geological setting, the source of ore - forming materials, digenic mechanism and metallogenetic epoch of gold ore deposits are also discussed
文摘:參照塗光熾先生（ 1990 ）提出的礦床類型劃分原則與金礦分類方案，將陜西秦嶺地區原生金礦劃分為太古界綠巖建造型、細碎屑巖-碳酸鹽巖-硅質巖建造型、變質碎屑巖型、火山巖建造型、隱爆角礫巖型和侵入巖內外接觸型金礦，並對各類型金礦的地質特徵、成礦地質背景、成礦物質來源、礦床形成機制及形成時代等問題進行了論述和討論。 -
The key studied areas are the paishanlou, daban, dayintaogou, wujiazi gold deposits. in terms of the study of regional structures, geophysics, and geochemistry, and necessary tectono - physical and numerical modeling, as well as studies of ore - forming and ore - controlling structures, the author holds that the detached - ductile sheari ng zone of the metamorphic core complex is the main ore - controlling structural system, and the regional mineralization is related with the regional ore - forming structural systems which are controlled by compounding of regional structural systems with different time and grade
重點以排山樓、大板、大櫻桃溝、五家子等金礦礦田構造調查為基礎，以區域地質構造、地球物理、地球化學研究為背景，輔以成礦構造物理模型、數學模型，通過成礦構造、控礦構造研究，將本區金礦的成礦構造確認為變質核雜巖拆離滑脫剪切帶，並且是與區域成礦構造系統相聯系，在不同時期、不同級序、不同力學性質構造體系成分復合條件下成礦。 -
The jiangcang mining area locates the position of special earth structure, regional structure developed distinguishingly, with the third kind of structure complicated degree and the third type of coal bed stable degree and metamorphic grade
摘要江倉礦區位於特殊的大地構造位置，區域構造演化特殊，構造復雜程度屬三類，煤層穩定程度和煤質變化程度屬三型。 -
Based on the study on ree distribution characteristics of sinian low grade metamorphic rocks of the basement and cover volcanics, the author makes a discussion on the material source and the genesis of xiangshan volcanics, and suggests that xiangshan volcanics came mostly from the remelting of the upper crust, and the genesis should be attributed to the category of remelted granites
摘要本文通過對相山火山盆地基底震旦系淺變質巖、蓋層火山巖稀土元素分佈特徵的研究，探討相山火山巖的物質來源及巖石成因，認為相山火山巖主要是上部地殼重熔的產物，其巖石成因應屬于重熔型花崗巖的?疇。 -
Clastic rock and low - grade metamorphic rock, and the non - disease area is mainly in the coal stratum
通過對重病區、輕病區及非病區人群的環境攝碘量估算。
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