火山前緣 的英文怎麼說
中文拼音 [huǒshānqiányuán]
火山前緣
英文
volcanic front-
And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates
通過對測試數據的分析與綜合研究，並同中國和世界一般花崗巖類以及中國主要金、銅成礦巖體的花崗巖類進行對比，得出本區花崗巖類巖石具有以下特徵：屬磁鐵礦-型或同熔型花崗巖，其巖漿物質具殼幔混源特徵：主要由熔融態巖漿經結晶分異作用，通過多期變速上侵而形成；其分異演化程度較低；寄主巖基和包體具有同源性；巖石的形成溫度范圍約為500 - 700 ，壓力大約為2 . 50gpa - 4 . 35gpa ，氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ；該巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期，為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。As these volcanoes grow, they rise above the ocean surface to form lines of islands along the leading edge of the overriding plate
隨著這些火山的生長，它們上升到海面以上會沿著仰沖板塊的前緣形成島鏈。Santanghu basin, located in the edge of the southern siberian plate, has the double basements of the pre - cambrian crystalline basement and the palezoic metamorphic basement of volcanic - sedimentary rocks
三塘湖盆地位於西伯利亞板塊南緣，具有前寒武紀結晶基底和古生代火山巖-碎屑巖褶皺基底組成的雙重基底。According to the geological background of the eastern section of daye maopu ~ yangxin liangjianqiao fracture zone, the characters of the known mineral deposits and the comprehensive analysis of the previous geologic work, and in combination of the characters of the known mineral deposits in the western section and the successful ore searching experience of jiguanzui copper - gold deposit, this paper analyses that there is large amount of ore searching information of hidden porphyry copper - molybdenum - gold deposit in the place where the eastern section of the east - west fracture zone and the edge of yangxin volcanic - rock sedimentary basin intersect, and infers that there occurs the copper - molybdenum - gold ore - forming massif at the edge of yangxin volcanic - rock sedimentary basin
摘要通過大冶毛鋪陽新兩劍橋東西向斷裂帶東段地質背景、已知礦床地質特徵及前人地質工作的綜合分析，結合西段已知礦床的特徵和雞冠嘴銅金礦床成功的找礦經驗，分析東西向斷裂帶的東段與陽新火山巖沉積盆地邊緣交匯地段存在大量的隱伏斑巖型銅鉬金礦床的找礦信息，推斷陽新火山巖沉積盆地邊緣存在隱伏含銅鉬金成礦巖體。Under the tectonic backgrounds of island arc belt, fore - arc trench belt, back - arc basin, and epicontinental active belt of late paleozoic, it has different volcanic rock characteristics
在晚古生代島弧帶、弧前海溝帶、弧后盆地或陸緣活動帶等構造環境下發育有不同的火山巖組合。分享友人