x
uploads/orogeny.jpg

orogeny n.【地質學;地理學】造山運動,造山作用。 亦 -gen...

orographic

The ne - trending yiwulushan mountains is located in western liaoning province with the fuxin basin as its western boundary and xialiaohe depression as its eastern boundary . our study area belongs to the fuxin au - concentrating zoning in northeastern part of the yanshan intercontinental orogeny in northern margin of the huabei ( north china ) block , where converge the ew - trending weichang - chifeng - fuxin cu - concentrating zoning in northern yanshan orogeny and the ne - trending suizhong - jinzhou - fuxin au - pb - zn - mo mineralization sequence 研究區屬華北地塊北緣的燕山陸內造山帶的東北端的阜新金礦集中區,是東西走向的燕山北緣圍場-赤峰-阜新金銀銅成礦帶與北東走向的綏中-錦州-阜新金鉛鋅鉬成礦列的交匯處。

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 author also suggested that the fuxin block developed on the base of the geosyncline in the huabei craton , and had experienced three period process of orogeny , including hercynian folding orogeny in continental margin , mainly indo - sinian to early yanshanian intracontinental fold - faulting orogeny , and late yanshanian to early himalayaian intracontinental range - basin post orogeny 認為阜新地塊是在克拉通裂陷槽基礎上發育起來的,經歷了海西期陸緣褶皺始造山、印支?早燕山陸內褶斷主造山、晚燕山?早喜馬拉雅陸內盆山后(重)造山等過程。

Tectonic analysis controlling gold mine mineralization in taihua group suggest that ductile fractures chang into brittle - ductile ones going with upliftling of xiaoqinling area after in - china orogeny . brittle fractures form on the basis of brittle - ductile ones that develop and inherit the characteristic of the latter stress field . folds and faults analysis in taihua group and its bilateral reveal that yanshanian tectonic evolution of xiaoqinling area undergo at least three phases of deformation 太華群內金礦成礦構造分析表明,印支期碰撞造山后小秦嶺擠壓抬升,控礦韌性剪切帶向脆韌性轉化( 207 148ma ) ,在脆韌性剪切帶基礎上疊加改造形成容礦斷裂,脆性斷裂的發育繼承了韌脆性剪切帶發育時的應力場特征。

The basin has three evolutionary stages including intracontinental rift basin in p1 - p2 , down basin in t2 + 3 - k and the strong trust - orogeny process in n - q . according to the unconformity contact relationship and sedimentary components , santanghu basin is divided into four tectonic sequence such as : o - c tectonic sequence of basement , pi - p3 tectonic sequence , t - k tectonic sequence and n - q tectonic sequence 根據盆地地層之間的不整合接觸關系,考慮到各層序沉積物組成與生物組合特征等因素,將三塘湖盆地劃分為: ( o ? c )基底構造層序,二疊系( p )構造層序,三疊系( t ) ?白堊系( k )構造層序和第三系、第四系構造層序。

The stratigraphic sequences and sedimentological characteristics indicate that the main body of the bayan har basin is composed of triassic flysch sediments deposited in a foreland basin during the triassic . in the study of jinshajiang orogenic belt , in the applying archipelago theory and particular anatomies to basin analysis in this orogeny , the model of jinshajiang archipelago mountain building and basin building is set up . the orogenic - sedimentology and sedimentary basin analysis system is printed archipelago paleogeography any more 在金沙江造山帶研究中,將多島弧盆理論應用于這個造山帶的沉積盆地分析研究中,對金沙江多島弧盆造山帶進行了詳細解剖,建立金沙江多島弧盆系造山造盆的模式,進一步發展造山帶沉積學和沉積盆地分析理論體系。

Scanning the formation - evolutionary histories of continental orogenic belts in both our country and whole workd , an orogenic belt has often undergone numerous and various tectono - evolutionary stages , such as palaeo - continental break - up , ocean - land transition , continental matching - collision , intracontinental extension - basin - range coupling , new tectonic uplift ( intracontinental orogeny ) , etc . , which are respectively companied with characteristic volcano - magmatism 縱觀我國以至全球的大陸造山帶形成-演化歷史,一個造山帶往往經歷了古大陸裂解、洋陸轉換、陸塊拼合-碰撞、陸內伸展-盆山耦合和新構造隆升(陸內造山)等?多不同的構造演化階段,這些不同的構造演化階段和不同的構造環境均有特定火山巖漿作用與之相伴。

A general survey of the formation , evolutionary histories of continental orogenic belts both in china and abroad reveals that orogenic belts have often undergone numerous and varied tectono - evolutionary stages , such as palaeocontinental break - up , ocean - land transition , continental matching - collision , intracontinental extension - basin - range coupling , and new tectonic uplift ( intracontinental orogeny ) , which are respectively accompanied by characteristic volcano - magmatisms 縱觀我國以至全球的大陸造山帶形成、演化歷史,一個造山帶往往經歷了古大陸裂解、洋陸轉換、陸塊拼合碰撞、陸內伸展盆山耦合和新構造隆升(陸內造山)等眾多不同的構造演化階段,這些不同的構造演化階段和不同的構造環境均有特定火山巖漿作用與之相伴。

In the northern part , the oceanic crust occurring between the bayan har and kunlun terranes started subduction from south to north at about 243 ma , and did not stop until the development of post - orogenic pog - type granite in the bayan har terrane at 220 ma , thus illustrating the orogeny in the form of subduction and collision kept active for over 20 ma 以pog型花崗巖在巴顏喀拉地體內大量生成、在阿尼瑪卿巖帶中較多出現、在昆侖巖帶利金沙江巖帶少量出現為標志。期: 160 - 140ma ,斷裂系活動;金沙江、東昆侖剪切作用發生;部分巖體動力變質變形。

Yinggete - bagemaode metamorphic core complex belt with three - layer construction is put forward , which evolved from late jurassic to cretaceous . the extensional simple shear model of the chagan fault depression is established . the tectonic evolution and the dynamics character of chagan fault depression and its adjacent mesozoic - cenozoic basins are discussed : at the end of triassic continental orogeny increased crust thickness crust uplift and denudation were happened ; jurassic was a period of local partly extensional collapse of erogenic belt and cretaceous was a period of widely extensional collapse of postorogenic erogenic belt ; cenozoic was a period of the development of stable intracontinental depression with the character of long distant collision response and weaked compression flexure 討論了查干凹陷及鄰區中-新生代盆地構造演化及其地球動力學特征,三疊紀(印支期)為陸內造山作用與地殼增厚、隆升剝蝕階段;侏羅紀(燕山早期)為造山后造山帶的局部伸展垮塌階段;白堊紀(燕山晚期)為造山期后大規模伸展垮塌作用與伸展盆地的發育階段;新生代(喜山期)為遠距離碰撞效應與弱擠壓撓曲性質的穩定大陸內坳陷的發育階段。

The tectonic subsidence curves on the southeastern margin of the yangtze plate are drawn out using of backstripping method for the basin formation and evolution . the basins located in the southern margin of the yangtze plate , in the basin dynamic computer simulation , is explored and constituted to be a typical foreland basin which is of not rather high mountain and thermal situation to be lower in this older orogeny belt 在沉積盆地分析方面,基本查明揚子板塊東南邊緣早古生代被動大陸邊緣沉積特征及沉積構造演化,同時運用反剝法技術對揚子板塊東南大陸邊緣沉積盆地形成,演化的構造沉降動力學進行探討,運用計算機模擬方法,定量動力沉積學對揚子東南邊緣奧陶紀到志留紀前陸地進行計算機模擬分析,探索并建立這個古老造山帶前陸盆定量參數和動態定量模擬。

Four tectonic evolution phases have been made out in this area . they are original crust formed in the archean - early proterozoic era , continental crust shearing in the middle - new proterozoic era , plate tectonic developed in sinian - triassic period and intracontinental orogeny in the middle cenozoic period 將區內構造演化歸納為太古?早元古代原始地殼形成、中新元古代大陸地殼裂解、震旦?三疊紀板塊構造體制、中新生代陸內造山等四個演化階段。

Kashan block of iran is the first oversea risk exploration block of chinese petrochemical co . ltd . kashan block is located in the south - west edge of iranian basin . on the structure , it belongs to alpines - himalayan orogeny belt controlled by dynamic system of tethys - indian ocean 伊朗卡山探區是中石化海外的第一塊風險勘探區塊,位于中伊朗盆地西南邊緣,構造上屬于特提斯?印度洋動力體系作用控制的喜馬拉雅-阿爾卑斯造山帶。

Through studying about tectonic units established , old plates rebuilded , original basins restored , texture and structure of orogenic belt , mechanism and model of orogeny , it is definded that the type of beishan orogenic belt is continent - accretion arc collosion orogenic belt 通過對造山帶構造單元的建立、古板塊重建、原型盆地恢復、造山帶結構、構造特徵及造山機制和模式的研究,確定北山造山帶類型為陸增生弧碰撞造山帶。

And then a new basin system comes into being . the yanshan erogenic belt is a mesozoic intracratonic erogenic belt . there are several basin - mountain transforming processes in the orogeny , and this paper will discuss this process based on basin evolution 燕山造山帶是一個中新生代陸內造山帶,在其造山過程中存在多次盆地的形成與消失,本文旨在通過對盆地系統演化的研究來探討造山過程。

The plumbum of ores belongs to the orogenic belt plumbu m , essentially is the mixture plumbum of earth ' s mantle and crust . the pl umbum originates from the orogenic belt and the metallization has relationship with the orogeny 礦石鉛既具有地幔鉛的特征,又具有上地殼鉛的特征,并且具有造山帶鉛的特點,成礦作用與造山作用關系密切,鉛來源于造山帶物質,本質上是殼幔混合鉛。

The qiongzhong granite should have been formed at orogenic relaxing stage after the peak of indosinian orogeny , and the danxian granite were formed at the latest orogenic phase 瓊中巖基可能形成于“印支期”碰撞造山運動峰期后的松弛階段,而儋縣巖基則可能形成于造山運動的結束階段。

Beishan orogenic belt passed complex geological evolution by multistage plate divergence - subduction - collision - fitting , with the characteristics of ploycycle multiple orogeny 摘要北山造山帶經歷多期次、多階段的板塊裂解俯沖碰撞拼合的復雜地質演化歷程,具多旋回復合造山的特色。

Because of yizheng orogeny in late cretaceous , braided delta system of anfeng was formed by rifling in subei basin and rising of sedimentary base level 摘要受晚白堊世儀征運動的影響,蘇北盆地拉張斷陷,沉積基準面上升,從而形成了比較完整的安豐退積型辮狀三角洲沉積體系。