overthrust belt 中文意思是什麼

overthrust belt 解釋
掩沖斷層帶
  • overthrust : n. 【地質學；地理學】掩沖斷層，上沖斷層。
  • belt : n 1 帶，皮帶；綬帶；線條；帶狀物。2 【機械工程】傳動帶；【天文學】雲狀帶；【軍事】子彈帶；腰皮帶...
  1. 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徵先後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；
  2. 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、剖面展布特徵及其分帶性，並對主幹逆沖斷裂帶及其間的推覆體帶、逆沖席帶和低應變區的特徵進行了詳細描述，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
  3. 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。
  4. 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採用的地震勘探採集技術的適用性； 2 、研究基於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。
  5. 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，廣泛分佈控制全區構造格局的南北向逆沖推覆的疊瓦式斷裂。
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