活動島弧 的英文怎麼說
中文拼音 [huódòngdǎohú]
活動島弧
英文
active island arc-
Geotectonically, the youjiang sedimentary basin was referred as youjiang yindosinian folded belt. triassic turbidites accumulated in the basin were derived from surrounding ancient lands including yuebei, jiangnan, and yunkai. tectonic setting of the sedimentary basin was in between an active continental margin and a continental island arc
賦礦濁積巖系的主要物源區為盆地周圍的「越北古陸」 、 「江南古陸」和東邊地區包括欽防海西褶皺帶在內的「雲開古陸」 ，沉積構造背景介於大陸島弧和活動大陸邊緣之間的過渡構造環境。The results indicate : ( 1 ) the distribution of magmatic rocks shows the feature that in the middle and western part of the study area basic igneous rocks dominate, and in the middle - eastern part intermediate rocks are predominant, while in the southeastern part acid ones are developed. ( 2 ) in the area west to the shiwandashan basin, intermediate magmatites were controlled by deep ne - striking and nw - striking faults, especially at the conjunction site of these two group faults, magmatic activity was strong ; and its tectonic background can be attributed to extensional continental rift
其中，在十萬大山盆地以西地區的偏基性巖漿活動受北東和北西向深斷裂控制明顯，尤其以此兩組斷裂交匯處的巖漿活動強烈，盆地構造背景屬大陸伸展裂谷環境；在十萬大山盆地以東地區為偏酸性巖漿活動，主要受東吳運動形成的欽防造山帶的控制，屬大陸邊緣造山帶或島弧造山帶環境。According to the characteristics of strata, tectonization and magmatism within the research area in the southwest margin of north china paleocontinent, and under the ideological guidance of mobilism and systematology, the geotectonic framework of the area could be divided as follows : ( 1 ) the longshoushan mountains continental margin ; ( 2 ) the hexi corridor back - arc basin ; ( 3 ) the northern qilianshan mountains suture zone ; ( 4 ) the central qilianshan mountains dispersion type island arc terrane ; ( 5 ) the southern qilianshan mountains back - arc basin ; ( 6 ) the qaidam massif
根據本區地層、構造、巖漿作用特點，在「系統論」 、 「活動論」思想指導下，釐定華北古大陸西南邊緣的構造格局如下：龍首山陸緣帶、河西走廊弧后盆地、北祁連縫合帶、中祁連離散型島弧地體、南祁連弧后盆地、柴達木地塊。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 geochemical examination of the sandstones and mudstones from the xikang group has led us to conclude that the debris are derived mostly from the surficial rocks and their overlying deposits on the xikang - yunnan ancient land, and tectonic settings display the transition from the passive continental margin to active continental margin and finally to archipelago
通過對西康群砂、泥巖地球化學組成特徵研究，認為其物源來自康滇古陸表殼巖及其上覆的蓋層沉積，大地構造屬性為被動大陸邊緣到活動大陸邊緣再到多島弧的轉化。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。It is very resembly representative island arc volcanic rock in the geochemistry character, so i demonstrate that a petrofabric formed tectonic activity section and island arc environment ; i also demonstrate that parametamorphite in the a petrofabric formed tectonic activity section. b petrofabric is very resembly a petrofabric in many aspects, so i think that b petrofabric also formed island arc environment, but volcanic activity obvious weakened in the b petrofabric stage. c petrofabric formed carbonatite mesa
在地球化學特徵方面與典型島弧火山巖非常相似，得出a巖組形成於構造活動區，形成環境為島弧環境。 a巖組的副變質巖的原巖碎屑巖是快速堆積的，處于構造活動區。 b巖組和a巖組對應的巖石在各個方面都非常相似，所以形成環境也為島弧環境，只是火山活動在這期間明顯減弱。The lower paleozoic strata in the south kunlun massif are kulafuhe group of cambbrian - ordovician. they consists of metamorphic detrital rocks, limestone, magnetite - bearing basalt, quartzite ( meta - silicalite ), which suggests that they might form at active continent margin. the geochemical characteristics of volcanic and detrital rocks do indicate that they might form at an active marginal environment such as island arc etc. associated with the qimanyuter ophiolite suit, there are lots of early paleozoic granitic plutons
在昆南地塊上的早古生代地層為寒武?奧陶系庫拉甫河巖群，由變碎屑巖、灰巖、含磁鐵礦玄武巖、石英巖（變硅質巖）等組成，顯示其比昆北地塊有較大的活動性，火山巖和碎屑巖的巖石地球化學特徵也反映為島弧及活動邊緣環境。In the last, there is the beidahe group tectonic evolution pocess in this paper. the evolution pocess can be divided three stages. they are : 1 ) outspead stage ; 2 ) stabilization stage ; 3 ) collision extrusion stage. afterward beidaheyan group passed through multiple phases of metamorphic - deformational function, now we see beidahe group
最後論文簡單的闡述了一下北大河巖群的構造演化過程： 1 ）洋殼向下俯沖，島弧伸展階段； 2 ）構造活動減弱，島弧伸展趨于穩定階段； 3 ）碰撞擠壓階段。分享友人