late-magmatic 中文意思是什麼
late-magmatic
解釋
晚巖漿期的-
Pegmatites seem to form during a late magmatic stage.
偉晶巖似乎是在較晚的巖漿階段形成的。 -
Throughout researching it has been found that three main types of copper deposits, which mafic - ultramafic rock, marine volcanic rock and porphyry, with middle proterozoic, paleozoic and mesozoic in gansu, china. the cu - bearing formation, deep major faults and late structural - magmatic zones formed in specific geotectonic setting are main ore - controlling and metallogenic factors for copper, gold and polymetallic minerals in this area, and their convergent positions are effective ones formed ore bodies in space
通過研究認為：鎂鐵質-超鎂鐵質巖型、海相火山巖型及斑巖型三種銅礦類型，是甘肅的主要銅成礦類型，其主成礦階段為中元古代、古生代以及中生代；特定大地構造背景下形成的含礦建造、區域性深大斷裂以及後期斜向構造-巖漿活動帶，是該區銅、金及多金屬成礦的主要控礦因素，三者在空間上的復合是礦床體形成的有利部位。 -
During this evolution, seven second - order tectonic units were formed ; from north to south are the mingqianri cretaceous residual sea basin, the arsuo tectonic melange zone, the taricuo - wenbu yenshan magmatic arc belt, the cuoqin - bangduo late paleozoic composite back - arc basin, the jiangrang - geerdi faulted uplift, the gangdise - chazi himalayan magmatic arc belt, and the xigaze - anba fore - arc basin. these units comprise important parts of a poly - arc - basin system and exhibit evolutional features of mesozoic to cenozoic arc - basin systems. mosaic pattern of these tectonic units delineates the lithosphere coupling processes of the gangdise tectonic belt under mechanisms such as back - arc basin attenuation and arc - continent collision
自中新生代以來，岡底斯構造帶經歷了洋殼俯沖、弧陸碰撞、陸內俯沖-碰撞、走滑和塊段隆升的多階段構造演化歷程，形成了由北向南七個二級構造單元，即岷千日白堊紀殘余海盆、阿索構造混雜巖帶、它日錯?文部燕山期巖漿弧帶、措勤?幫多晚古生代復合弧后盆地、江讓?格爾耿斷隆、岡底斯?查孜喜馬拉雅期巖漿弧帶、日喀則?安巴弧前盆地。 -
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 study of geological characteristics and geochemical conditions of mazhuangshan gold deposit shows that it is closely related with old metamorphic basement and volcano - magmatic activities as well as volcanics and volcaniclastics of mazhuangshan - mingshui superimposed volcanic basin, and controlled by structures derived from closure of late palaeozoic honghe basin
摘要對馬莊山金礦地質特徵及地球化學條件研究表明，馬莊山金礦的形成與古老變質基底、火山巖漿活動及馬莊山一明水上疊火山巖盆地的火山巖、火山碎屑巖緊密相關，並受到晚古生代紅河盆地閉合而派生的構造控制。 -
The internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from the dangqiong ophiolite is 373 ? 8ma, inferring a magmatic activity during late devonian, which end ( t ) = + 3. 3 suggests that its tectonic setting was probably oceanic island
其nd （ t ） = + 3 . 3 ，認為其時形成環境為洋島，可能代表了新特提斯蛇綠巖形成時所攜帶的古老洋殼。 -
Preliminary study on late pleistocene phreato - magmatic eruptions in northern hainan island
瓊北地區晚更新世射氣巖漿噴發初步研究 -
The comparison of cenozoic basalts and their mantle xenoliths from both sides of the taihangshan gravity lineament reveals that : ( 1 ) cenozoic basalts from western and eastern north china display opposite temporal trends, suggesting lithospheric thinning in western north china during the cenozoic and lithospheric thickening in eastern north china ; ( 2 ) the lithospheric mantle in the west is mostly late - archean to proterozoic in age, whereas that in the east has a modern age with minor proterozoic age ; ( 3 ) the crust mantle transition in the west is considerably thicker than in the east, probably due to different extents of magmatic underplating
摘要通過對比華北太行山重力梯度帶兩側新生代玄武巖及其中幔源包體的成分，發現： （ l ）華北東、西部新生代玄武巖具有相反的演化趨勢，說明新生代以來西部巖石圈逐漸減薄，而東部巖石圈逐漸加厚； （ 2 ）西部巖石圈地幔組成相對復雜，年齡多為晚太古代元古代；而東部巖石圈地幔組成相對單一，年齡多為現代值，少數為元古代； （ 3 ）西部殼幔過渡帶較厚而東部較薄，反映兩地不同的巖漿底侵作用程度。 -
Based on the distribution and petrochemistry of magmatic rocks, the techonic background of sedimentary basin and the mechanism of magmatic activity at the late hercynian in nanpanjiang depression and its adjacent areas, southern china, have been studied
摘要南盤江坳陷及鄰區海西晚期巖漿巖分佈顯示有從中、西部大規模玄武巖噴發中東部中酸性巖漿活動東南部花崗巖侵入的演化規律。
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