fold phase 中文意思是什麼
fold phase
解釋
褶皺幕-
Chagan sag is a secondary tectonic unit in chagandelesu depression, northeastern yingen - eji ' naqi basin, and the basement of the basin is a paleozoic fold belt of continental margin or island arc at the connection region of north china plate * tarim plate and kazakstan plate, with the character of erogenic belt. in working area and its adjacent area, the forming tectonic setting of indosinian intrusion was that orogenic belt pressed strongly, intracontinental subduction ; that of early yanshan movement epoch was the stress field transferred from compression to extension meanwhile the incrassate crust of orogenic zone turned to extensional collapse ; and that of early cretaceous volcanics was that the area structure extensional collapse further more during the post period of orogenic phase
查干凹陷屬于銀根?額濟納旗盆地東北端查干德勒蘇坳陷內的一個次級構造單元，其盆地基底為古生代時期華北板塊、哈薩克斯坦板塊和塔里木板塊交接部位形成的陸緣或島弧褶皺帶，具有古生代造山帶的性質。研究區及鄰區印支期侵入巖形成於造山帶強烈擠壓陸內俯沖的構造環境；燕山早期侵入巖形成於由擠壓轉向拉伸、造山帶的增厚陸殼開始發生伸展垮塌的構造環境；早白堊世火山巖形成於造山期后進一步發生伸展垮塌的區域構造環境。 -
They are paleozoic ~ early mesozoic - fold deformation and the appearance of reversed fault ; mesozoic - the beginning of graben faulting - block period ; early cenozoic - the phase of broke - the forming of block hill ; late cenozoic - the phase of segging - the forming of buried hill. we mark off five kinds of buried hill belts. they include three different kinds of trap on the basis of the cause of trap formation
本次研究在重新認識濟陽坳陷區域構造背景的基礎上，將濟陽坳陷古生界潛山的形成過程分為四個階段，即古生代早中生代?穩定沉降?隆升?輕微褶皺變形及逆斷層發育階段、中生代?初步斷陷階段?塊斷期、新生代早期?斷拗階段?塊斷潛山形成期以及新生代晚期?坳陷階段?潛山定型期。 -
The first phase involves the formation of thrusting and napping towards nww accompanied by extensive igneous activity and mineralization. the second phase corresponds to the development of asymmetrical small fold downwards north and south. the final phase the cenozoic is marked by strong brittle fractures activity resulting in the sharp heave of the landform of xiaoqinling aera
太華群內的褶皺及南北兩側斷裂分析表明，小秦嶺燕山期至少經歷3期變形，第一期為sse nww向的褶皺變形作用；第2期為南北向正斷下滑剪切作用；第3期為脆性正斷作用。
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