overthrust n.【地質學；地理學】掩沖斷層，上沖斷層。
n. 【地質學；地理學】掩沖斷層，上沖斷層。 “anticline overthrust“ 中文翻譯： 背斜逆掩斷層“mass overthrust“ 中文翻譯： 推覆大斷層“overthrust anticline“ 中文翻譯： 掩沖背斜“overthrust belt“ 中文翻譯： 掩沖斷層帶“overthrust block“ 中文翻譯： 逆掩斷層推覆體; 逆掩斷塊; 掩沖斷塊; 掩沖體“overthrust fault“ 中文翻譯： 逆掩斷層; 掩沖斷層“overthrust fold“ 中文翻譯： 倒轉褶皺; 逆掩褶曲“overthrust mass“ 中文翻譯： 掩沖體“overthrust nappe“ 中文翻譯： 沖斷推覆體; 逆掩斷層推覆體“overthrust plane“ 中文翻譯： 逆斷層面; 逆掩斷層面“overthrust plate“ 中文翻譯： 掩沖盤“overthrust sheet“ 中文翻譯： 逆沖斷片; 逆掩層; 逆掩巖席; 掩沖席“overthrust slice“ 中文翻譯： 逆沖體, 逆掩斷層推覆體“overthrust structure“ 中文翻譯： 掩沖構造“overthrust tectonic“ 中文翻譯： 掩沖構造“low-angle overthrust“ 中文翻譯： 低角逆掩斷層“low-angle overthrust fault“ 中文翻譯： 低角上沖斷層“overthrust resources ltd“ 中文翻譯： 掩沖斷層資源公司“patch of overthrust sheet“ 中文翻譯： 孤殘層“overthrown fold“ 中文翻譯： 傾倒褶皺“overthrown“ 中文翻譯： 打翻“overthrowal“ 中文翻譯： n. 推翻，打倒。 “overthrow the manchurian dynasty“ 中文翻譯： 推翻滿清政府“overthrow of sukarno“ 中文翻譯： 印尼九三零事件
overtime |
|
This paper analyzes the sedimentation and the occurrence of the strata in wuxia area and suggests that wuxia area underwent the development of foreland basin of early permian , the overthrust nappe of late permian , the strong structural uplift of late triassic , the weak structural activity of late jurassic and the structural shape of cretaceous followed by finally forming the configuration nowadays 在對烏夏地區地層的沉積特征和產狀分析后發現，烏夏地區經歷了早二疊世的前陸盆地發育階段、二疊紀末的逆掩推覆，三疊紀末的構造強烈隆升、侏羅紀末期的構造微弱活動、至白堊紀的構造定形等多個階段的演化而形成了現今的面貌。 |
|
Lithologically different rock sheets intertexturally superimposed with faults and folds of various styles . while , the southern belt is chiefly of devonian tuff , tuffaceous schist , marble relatively stable in strata and manifested by regional asymmetric fold easi - westward in axis , with well developed superimposed overthrust south - northward which controlled the whole structural framework in this area 南帶以泥盆系凝灰巖、凝灰質片巖、大理巖為主，地層相對穩定，表現為軸向東西的區域性不對稱褶皺，廣泛分布控制全區構造格局的南北向逆沖推覆的疊瓦式斷裂。 |
|
We established geological and mathematic model for the relief of overthrust fault and earned out simulation computation after selecting factors . the result is that pressure can be released when fault is open . but ft will take a long time for the formation pressure to be relieved to normal formation pressure 建立了逆掩斷層泄壓的地質模型和數學模型，選取參數后進行了模擬計算，結果表明逆掩斷層活動開啟釋放壓力，但要將地層壓力釋放到正常地層壓力需要時間較長，在斷裂活動時期不足以將圈閉中超壓釋放掉，這是庫車坳陷超壓能夠保存的另一主要原因。 |
|
Owing to complicated earth ' s surface condition such as the steep stratum outcropping of front - zone of mountain or the huge thick gravel stratum ' s overlay and earth ' s surface large undulation , complicated underground geology structure developed extremely such as thrust and overthrust nappe , and violent change of the lateral velocity , etc . in front - zone of mountain there are a series of problems such as serious secondary disturbance and low signal - to - noise ratio in seismic exploration gathering 由于山前帶高陡巖層出露或巨厚礫石層的覆蓋、地表起伏大等復雜的地表條件、逆沖和逆掩推覆等復雜地下地質構造發育、速度橫向變化劇烈等原因，造成了山前帶地震勘探資料采集存在次生干擾嚴重和信噪比低等一系列問題。 |
|
Based on these research , we recovered the evolution history of overthrust faults vertical sealing ability and considered that there always have fracture activity ever since jidike formation deposition period . but this kind of activity is not always continuous . during moving period , fault is open 在此基礎上對逆掩斷層垂向封閉性演化史進行了恢復，認為斷裂自吉迪克組沉積時期以來均有活動，但這種活動是間歇性的，活動時期斷層開啟，靜止時期斷層多是封閉的。 |
|
To do the investigating and studying work about the achievements of tackling key problem of the quondam exploration of front - zone of mountain , to analyze and study the applicability about the gathering technology used in the seismic exploration of the complicated construction belt of front - zone of mountainous ; 2 . combining the quondam achievements , researching the design method of observation system objective of the complicated construction belt based on seismic - geology model , firstly , building the surface level and deep layer seismic - geology model of complicated construction belt and analyzing the forward model , secondly , designing the observation system aiming at the overthrust nappe structure in section and in area ; 3 . aiming at the complicated earth ' s surface condition of front - zone of mountain , how to select the exciting method and the parameter , how to optimize the environment of exciting method and reception , how to pledge the normal combination of the datum of different exciting method ; 4 根據山前帶的地震地質條件特點，本文主要研究了以下幾個方面的內容： 1 、對以往山前帶地震攻關成果開展調研工作，分析研究在山地山前復雜構造帶所采用的地震勘探采集技術的適用性； 2 、研究基于地震地質模型的復雜構造帶觀測系統目標設計方法：如何建立復雜構造帶的表層、深層地震地質模型，利用正演分析目標區的觀測系統；針對逆掩推覆體構造，如何分區分段有針對性設計觀測系統等； 3 、針對復雜地表條件的山地山前帶，如何選擇激發方式、參數，如何優選激發、接收環境，如何保證不同激發方式的資料能正常拼接； 4 、山前帶巨厚礫石區的表層結構調查技術及靜校正方法研究。 |
|
Through the research on the development character of overthrust fault , we analyzed its sealing mechanism . we also established evaluation standard and method of fault sealing ability through the following two simulation experiment : experiment on the quantitative relationship between property of fracture zone filler and fault sealing ability ; experiment on the deformation character of cream shale . based on these work , we evaluated sealing ability of overthrust faults on several typical structure in kuche depression 本文通過逆掩斷層發育特征研究，分析了逆掩斷層封閉機理，在斷裂帶填充物性質與斷層封閉性定量關系模擬實驗和膏泥巖變形特征模擬實驗基礎上建立了斷層封閉性評價標準及評價方法，以此對庫車坳陷幾個典型構造上逆掩斷層垂向封閉性進行了評價，結果表明現今斷層多是封閉的，這是庫車塌陷天然氣和異常孔隙流體壓力得以保存的主要條件。 |
|
Especially interesting is the serpentinous peridotite in this belt occurred as lense blocks of various sizes , and superimposed with other geological masses with faults , and in combine to constitute the mixture . system in the belt . five tectonic stage can be discerned in this area : ( 1 ) south - north ward overthrust ; ( 2 ) sinistral strike - slip ( 3 ) dextral strike - slip ( 4 ) south - north ward overthrust ( 5 ) northeast , northwest late stage fault 本區上述的結構構造特征先后經歷了五期構造作用，依次為： ( 1 )南北向逆沖推覆； ( 2 )左行走滑； ( 3 )右行走滑； ( 4 )南北向擠壓推覆； ( 5 )北東向、北西向晚期斷裂； |
|
This paper has studied the development of setting & model of the overthrust , which is distributed over the plane & section , and its belting character in the northern margin region of chaidamu basin , and described the character of the main overthrust sheet belt and lower strain area in great details . moreover , it has pointed out a best target for oil / gas exploration on the imbricate fan belt and hidden overthrust forward belt through surveying the developing evolution model and its formation mechanism of the overthrust in the field and structure inversion indoor 6figs . , 8refs 研究了柴北緣地區逆沖推覆構造的發育背景、發育模式，平面、剖面展布特征及其分帶性，并對主干逆沖斷裂帶及其間的推覆體帶、逆沖席帶和低應變區的特征進行了詳細描述，同時通過野外觀察和室內構造反演來研究推覆構造的發展演變模式及其形成機理，指出其逆沖疊瓦扇帶和隱伏逆沖前緣帶是最有利的油氣勘探目標.圖6 ，參8 |
|
The frontal structure of longmenshan in the west of sichuan is very complex , showing intense structure deformation in overthrust belt , high structure amplitude , steep stratigraphic dip , developed fault blocks , complex seismic wave field , frequent change of lateral velocity , and poor image of post - stack time migration processing 摘要川西龍門山前緣構造非常復雜，逆掩推覆構造帶構造形變強烈，構造幅度大，地層傾角陡，斷塊發育，地震波場復雜，速度橫向變化大，常規疊后時間偏移處理成像效果較差。 |
|
Conclusion the taihua complex in the area is a metamorphic complex undergone low - angle overthrust from the south to the north and uplifting lately by fault blocking , rather than a mcc 結論小秦嶺地區的太華雜巖解釋為經歷了從南向北的鏟狀逆沖推覆和后期抬升塊斷剝露的變質雜巖更為合理。 |
|
Depending on the intensity of the deforming forces the folds may be gentle, sharp, overturned, or overthrust . 根據變形力的強度，褶皺可以是平緩的，陡峭的，倒轉的，或逆掩的。 |