弧前地區 的英文怎麼說
中文拼音 [húqiándeqū]
弧前地區
英文
forearc area-
In the link party of qinling - qiliang - kunlun belt, the polyarc - basin systemic characteristic is discussed with strengthen and standout study on the detail relationship analysis between the arc - basin. the bayan har basin thought to be the preexistence of the songpan - garze belt, is a back - arc basin among a series of polyarc - basin systems behind the qiangtang - taniantawong front the arc beginning in the late paleozoic. the eastern margin started as the western passive continental margin of the yangtze block ( d - t2 ), then changed into a foreland basin related to the north china block and the qiangtang block during the middle to late triassic
在秦祁昆侖結合部研究中，加強和突出了精細的島弧盆分析和造山作用關系的研究，探討了秦、祁、昆結合部多島弧盆特徵；通過巴顏喀拉地區沉積特徵，沉積體的空間展布和形態，面式物源供給方式，礦物成分和地球化學背景分析，其沉積盆地屬性總體上反映出一個從過渡地殼-洋殼基礎上發育起來的周緣前陸盆地的發展和演化過程。In the light of tectonic evolution stage and metallogenesis, these metallogenic system ( assemblage ) could be classified as follows : ( 1 ) the pre - divergent metallogenic system in the southwest margin of north china paleocontinent in the archean - meso proterozoic : dongdashan iron, jinchuan nickel - copper. ( 2 ) the divergent metallogenic system in the northern margin of the qaidam paleoplate in the middle - late proterozoic : huashugou - liugouxia iron. ( 3 ) the metallogenic system in the active margin in the early paleozoic : the metallogenic assemblage in the island arc - rift in the early stage ( baiyinchang - qingshuigou copper - polymetallic ) ; the metallogenic assemblage in island arc in the middle - late stage ( honggou - jiaolongzhang copper - polymetallic ) ; the back - arc extensional basin ( zhuzhuiyaba - jiugequan - shijuli copper ) ; the metallogenic assemblage in connection with subduction and magmatic - hydatogenesis ( taergou - xiaoliugou wolfram ; huashugou - liugouxia copper ; dadonggou - diaodaban lead - zinc ) ; the metallogenic assemblage is related to the oceanic crustal shards ( dadaoerji chromite ; yushigou chromite ). ( 4 ) the metallogenic system has something to do with collision - type orogeny : the metallogenic assemblage in foreland basin ( tianlu copper ) ; the metallogenic assemblage with the intracontinental orogeny and ductile shear ( hanshan - yingzhuishan gold )
根據構造發展階段和成礦作用特點，確定本區成礦系統及組合如下： （ 1 ）華北板塊西南邊緣太古宙中元古代裂解期前成礦系統：東大山鐵成礦組合，金川鎳銅成礦組合； （ 2 ）柴達木板塊北緣中、新元古代裂解成礦系統：樺樹溝柳溝峽鐵成礦組合； （ 3 ）加里東期活動大陸邊緣成礦系統：早期島弧裂谷成礦組合（白銀廠清水溝銅及多金屬成礦組合） ，中、晚期島弧成礦組合（紅溝蛟龍掌銅及多金屬成礦組合） ，弧后擴張盆地成礦組合（豬咀啞巴九個泉石居里銅及多金屬成礦組合） ，與俯沖作用有關的巖漿熱液成礦組合（塔爾溝小柳溝鎢成礦組合，樺樹溝柳溝峽銅成礦組合，大東溝吊大坂鉛鋅成礦組合） ，洋殼殘片成礦組合（大道爾吉鉻成礦組合，玉石溝鉻成礦組合） ； （ 4 ）碰撞造山成礦系統：前陸盆地成礦組合（天鹿銅成礦組合） ，陸內造山韌性剪切成礦組合（寒山鷹咀山金成礦組合） 。The company is mainly engaged in the research, devlopment and production of cmc welding material series including weldingwire, welding rod, welding compound, the main prlducts include co2 gas - shielded welding wire, submerged arc welding wire, weathering resistant steel welding wire, coredelectrode, copper & copper alloy welding rod, cast iron welding rod, buttering welding rod, copper base brazing alloy, phosphorus copper brazing alloy, welding flux 430 and welding flux 431 series, 68 kinds and over 100 standards. the company is one of the largest welding material production enterprises in central south china
公司產要產品有： co2氣體保護焊絲、埋弧焊絲、耐侯鋼焊絲、不銹鋼焊絲、銅及銅合金焊絲、鋁及鋁合金焊絲、結構鋼焊條、不銹鋼焊條、鑄鐵焊條、堆焊焊條、銅基釬料、磷銅釬料、焊劑430 、焊劑431等，擁有四大系列六十八個品種一百多種規格焊接材料，是中南地區目前品種規格最全的焊接材料製造企業之一。
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