巖漿後期 的英文怎麼說
中文拼音 [yánjiānghòuqī]
巖漿後期
英文
postigneous stage-
Based on the analysis of thermal contact metamorphic aureoles, granitoid interior structure, quartz axis fabric and strain characters in the different rock unites of yuanshishan granitoid and its wall rocks, the emplacement mechanism of yanshishan granitoid was studied. the magmatic explictite dynamic was advanced in light of regional stress and magma dynamic research. those conclusion was synthesized to ascertain the emplacement mechanism - granitic magma ascended in dikes with the minimum critical width of the magma ascending channels about 2. 213. 88m and located in the core of yindianshan dome with the passive style of dyke explictite ; the later unite is a kind of multiple emplacement mechanism with the character of active emplacement of ballooning
同時運用巖漿動力學原理從另一個角度探討其侵位驅動力。綜上指出：經分凝后的活動性巖漿在深部側向擠壓和浮力的聯合驅動下，沿深大斷裂以最小臨界寬度為2 . 213 . 88m的裂隙脈動上侵，整體以巖墻擴展的方式被動定位於銀殿山穹窿的核部，但後期屋面前單元具有主動侵位的特點應為一種復合定位機制。This thesis studies each structural layer ' s feature : ( 1 ) structural layer of basement : it is a paleozoic folded basement, whose tectonic deformation and magma intrusion is fiercely, and it is affected by the early hercynian tectonic movement and related to the underthrust and closure ( c1 ) of zhungaer ocean basin and the areal pressing of continents ( c2 - 3 ) ; ( 2 ) structural layer of permian : due to the regional extending and fault depression role in mid - hercynian, it occurred to the combinations of structure and magma in santanghu basin and it ' s periphery area, such as a - granite ' s stock, batholiths and diabase ' s dike. there are many fault depressions possible
按照不同構造層，研究了各構造層的構造特徵：基底構造層：受早海西期構造作用的影響，與準噶爾洋盆俯沖閉合、而後陸-陸碰撞的區域擠壓構造作用有關，為一構造變形和巖漿侵入活動強烈的古生代褶皺基底。二疊系構造層：受中海西區域性伸展斷陷作用的影響，盆地及其周緣地區發育與伸展構造有關的構造-巖漿組合，如呈巖株、巖基狀侵位的a型花崗巖以及呈巖墻狀侵位的輝綠巖等。There are typical laminated structure, soft sedimentary - slipping deformed structure, syngenetic brecciated structure in the ore which are the mirror of syngenetic sedimentation. the other type of ore has the charactristic of epigenetic mineralization, which is called as telescoped ore. the ore occurs in vein, pocket, lensoid and bedd
礦石中發育典型的紋層狀構造、軟沉積滑動變形構造、同生角礫構造等反映同生沉積特徵的礦石構造；另一類礦石具有明顯的後生成礦特點，稱之為疊生改造型礦石，礦石產于脈狀、囊狀、透鏡狀及似層狀礦體中，與燕山期巖漿巖及斷裂裂隙構造關系密切。Secondly, based on the microbeam analytical technique, on the one hand, through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle ; on the other hand, through multi - point analysis of a part of the minerals from mantle, the auther got dynamic information from mantle. finally, generalizating the fruits of this study and predecessors, the autor holds that the constituents of lithospheric mantle possibly includes spinel lherzolites, clinopyroxenites, websterite, dunite, harzburgites, garnet lherzite, phlogopite lherzite, eclogites, clinopyroxene megacrysts ; compared with east china and north china platform, the research field mantle shows the characteristics of higher degree of partial melting processes and more depleted mantle ; the. upper mantle beneath north hetian area is heterogeneous, with a tendency of deficit in a12o3 and lree from kaliyang in west hetian to the river basin of kalakshi river and yulongkashi river ; the subduction of the crust beneath north hetian has ever occurred in geological history and caused the mixing of mantle - crust ; the depth of the origination of basaltic magmas beneath north hetian exceeds 73km ; the thickness of the lithosphere beneath the research area amounts to 204. 9km ; the mantle beneath north hetian has geological condtions for forming diamond deposits
最後，綜合本區幔源礦物和地幔巖石的特徵以及地球物理資料，得出如下結論：本區上地幔的物質組成有尖晶石二輝橄欖巖、二輝巖、單斜輝石巖、純橄欖巖、方輝橄欖巖、石榴石二輝橄欖巖、金雲母二輝橄欖巖、榴輝巖；與中國東部以及華北地臺上地幔相比，研究區上地幔具有富集主元素中相容元素和虧損其中的不相容元素的特徵，局部熔融程度較高；上地幔存在橫向和縱向的不均一性，從西部的克里陽到喀拉喀什河和玉龍喀什河流域， al和lree富集程度呈下降趨勢，不同來源的相同礦物中主元素的含量差異較大；地質歷史時期這里可能發生過地殼俯沖並產生殼幔混合作用；玄武巖漿的起源深度73km ；從幔源重砂礦物的溫壓估算結果，可以推斷出巖石圈厚度可達204 . 9km ；綜合巖石圈物質組成特徵、巖石圈熱狀態、地幔溫壓狀態、氧逸度以及幔源巖石和幔源礦物的化學成分，認為研究區具備了金剛石成礦地幔地質條件。( 7 ) showing and determining the evidence and timing of the lithophere delamination occurred in qinling orogenic belt. pointing out the gold deposit in xiaoqinling - xiongershan region are mostly formed during indosinian to early - yanshan movement, related to mantle fluid injecting caused by lithosphere delamination and plutonic activity caused by further large - scale tectonic extension
初步闡述了東秦嶺地區的成礦分區和成礦特點，指出小秦嶺一熊耳山地區金礦形成的主要時期是印支一早燕山期，並且與巖石圈拆沉作用所引起的地慢流體活動和之後進一步大規模伸展作用產生的深源巖漿活動密切相關。By study dabaoshan deposit on minerogenetic and geological background, mineral constituent, rare - earth element, isotope and typomorphic feature of sulpurization mineral, finally, we made a conclusion that dabaoshan deposit resulted from the volcanic deposition which type is laterebuilt and magma hydrothermal superimposed. we found the upside of dabaoshan deposit have been denuded or oxidized, bassically, it have reached the lowest part of the deposit
通過對大寶山礦床的成礦地質背景、礦物成分、稀土元素組成、同位素以及黃鐵礦、閃鋅礦、方鉛礦的標型特徵進行研究，確定了大寶山礦床的成因為火山沉積，經後期巖漿熱液疊加型礦床，對礦床的遠景進行了預測，提出大寶山礦床的上部礦體已被剝蝕或被氧化，基本上已經到礦體的深部的觀點。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。Integrated with other late paleoproterozoic granitoids within the central tectonic zone, it indicates that there was a tectonic transitional process from extension to compression during late paleroproterozoic in the southern segment of the central zone of ncc
巖石學和地球化學研究表明王家會花崗巖屬於後碰撞花崗巖，結合區域上古元古代地質特徵，表明華北克拉通中部帶南段古元古代晚期的花崗巖構成了與正常造山過程花崗巖漿演化相反的序列。Combining the isotope geochronological results with the fieldwork observations, we could draw some conclusions as follows : the kunlun - bayan har terranes experienced the subduction of oceanic crust and collision somewhat earlier than the bayan har - qiangtang terranes, with only a very short interval in between and even the collisions overlapped partially in time
_ 2 ： 227 - 218ma ，巴顏喀拉和羌塘之間洋殼俯沖，以金沙江巖帶iag型巖漿侵位為標志。 _ 3 ： 217 - 212ma ，造山後期巖漿侵位。Based on the analyses of dynamic deformation process of the soft failure roadway under high ground stress, process - monitoring stepwise supporting principle was put forward to maintain this kind of roadway, that is 1 ) making full use of the carrying capacity of surrounding rocks, 2 ) timely reinforcing the surrounding rock by grouting to enhance its integrality, and 3 ) reinforcing supporting in those key positions
基於該類巷道變形的動態階段性特點，針對性地提出該類軟巖巷道支護的過程監控分步支護的過程式控制制方法，即開巷初期充分發揮圍巖自身的承載能力；適時採取圍巖注漿加固， 「保護與強化」圍巖力學性能，提高圍巖完整性；最後關鍵部位加強支護。分享友人