alluvial stream 中文意思是什麼
alluvial stream
解釋
沖積河流-
Besides, the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration. the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings. the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north, the coarse lithology of fan - delta prograded from north to south in fall - hemicycles, and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south, braided stream facies prograded from sorth to north in the fall - hemicycles, but the lacustrine facies and salt lake facies developed in the middle part of the area
詳細的沉積相研究發現，紅獅地區第三系發育有沖積扇、水下沖積扇、河流、三角洲、扇三角洲、湖泊和湖底扇7種主要沉積相類型，並對作為區內主要勘探目的層系的下乾柴溝組和上乾柴溝組進行了以超層序為單位的沉積相平面編圖，以較高的時間解析度揭示了區內沉積相帶的平面展布及其在不同構造背景中的分佈規律，比如在北部的凹陷陡坡背景下，上升半旋迴低水位期通常發育有水下扇、湖底扇等陡岸近源特徵的沉積體系，下降半旋迴高水位期，扇三角洲相粗碎屑巖由北向南進積;在南部的凹陷緩坡背景下，上升半旋迴主要發育辮狀河流相，下降半旋迴辮狀河三角洲相由南向北進積;而中部紅柳泉一獅子溝一帶則為湖泊相沉積和鹽類沉積。 -
Based on the observation of the outcrops, we studied the details of the sedimental facies in ganchaigou formation, and analysed the variety of sedimental facies, including alluvial - fan facies, braided stream facies, fan - delta facies, lacustrine facies, lacustrine floor fan facies and storm deposit facies
摘要在野外地質剖面研究的基礎上，對柴達木盆地西部古近新近系乾柴溝組進行了詳細的沉積相研究，分析了乾柴溝組發育的沖積扇、河流、三角洲、扇三角洲、湖泊、湖底扇及風暴沉積等幾種沉積相類型。 -
Based on the detailed research on the sedimentary rocks of northwest ordos basin in their textures, structures, vertical sequences and logging response, six kinds of sedimentary facies can be recognized in this work, i. e., alluvial fan, stream, fan delta, braided delta, delta, lake, barrier beach and carbonate platform, respectively, and more detailed classification of sedimentary subfacies and microfacies for each sedimentary facies are also made in the work
本文通過對鄂爾多斯盆地西北部沉積巖沉積結構、沉積構造、垂向序列及測井響應的深入研究，識別出沖積扇、河流、扇三角洲、辮狀河三角洲、曲流河三角洲、湖泊、障壁海岸及碳酸鹽臺地等8種沉積相類型。在此基礎上，對每一種沉積相又進行了詳細的沉積亞相和微相的劃分。 -
A brief introduction is given to the treatment of the zeya dam foundation, principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir. as for the excavation of the sand - gravel zones, except the toe slab and its 1 / 9 bottom width down stream, the alluvial layers are excavated to the micro - weathered rocks, while the other sections remain unexcavated. regarding to the treatment of the fracture zones, concrete filling is used for the toe slabs and semi - permeable materials are used for other section. according to the construction characteristics, a filter is placed in the down stream embankment foot. to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted. as a result safety, economic benefit, convenience in construction and good performace are achieved
簡要論述澤雅水庫面板堆石壩壩基處理和防滲的原則及設計要點.趾板基礎和堆石體各區砂礫石基礎開挖，除趾板與其下游1 / 9底寬范圍以及壩腳挖除沖積層至弱風化（局部微風化）基巖外，其餘部分均予以保留.斷層破碎帶處理，趾板部位採用混凝土塞，其它部位採用半透水料置換，並根據本工程特點在下游壩腳加設了反濾層.為提高壩基的整體性和防滲性能，對趾板進行了固結和帷幕灌漿.達到了安全、經濟、便於施工的目的，運行情況良好，可為面板堆石壩的設計和研究提供參考與借鑒 -
The deposits in shanxi stage are, from north to south, alluvial fans, braided stream, meandering stream, delta plain, delta front and littoral sediments
山西期由北向南依次發育沖積扇、辮狀河、曲流河、三角洲平原、三角洲前緣和濱淺湖沉積。 -
During the early stage of middle permian, the studied area is dominant, from north to south, of alluvial fans, braided stream, braided delta plain, braided delta front and littoral deposits, while the extension of sedimentary facies belts in the middle and the late stage of middle permian is as the same as that of shanxi stage
中二疊世早期，研究區由北向南依次為沖積扇、辮狀河、辮狀河三角洲平原、辮狀河三角洲前緣和濱淺湖所佔據。中二疊世中晚期，沉積相帶展布順序與山西期相同。
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