alluvial fan 中文意思是什麼
alluvial fan
解釋
沖擊扇-
These channels are most common near the apex of the alluvial fan body.
這些河道最常見于近沖積扇體的頂端。 -
Upward-fining channels may occur in a wide range of environments, from submarine canyon to alluvial fan.
向上變細的水道可以出現在好多種環境中，從海底峽谷到沖積扇。 -
Based on available data, the study on regional structure, sedimentary reservoir and source rock characteristics shows that the basins in south china sea had experienced sedimentary evolution in faulting period and depression period, deposited thick cenozoic formation, upwardly developed alluvial fan facies, river - lake facies coastal swamp facies coastal facies, neritic facies and bathyal deposit system, regionally had 3 source rocks of eocene, oligocene and miocene, 3 reservoirs of pre - cenozoic basement buried bill, oligocene sandstone and miocene reef, with pliocene and pleistocene neritic facies and bathyal shale as regional caprock
摘要以現有資料為基礎，通過對區域構造、沉積儲層、烴源巖特徵等基礎石油地質條件研究，認為南海海域各盆地經歷了斷陷期和坳陷期沉積演化，沉積了巨厚的新生代地層，自下而上發育了沖積扇相、河湖相、濱岸沼澤相、濱海相、淺海相、半深海相沉積體系，區域上存在始新統、漸新統和中新統3套烴源巖，前新生代基巖潛山、漸新統砂巖、中新統生物礁3套儲層，區域蓋層為上新統和更新統淺海半深海相泥巖。 -
The study area is composed of sandstone & conglomerate reservoir of alluvial fan & fan delta, which belong to sha3 lower member and sha4 upper member of lower tertiary of yong " an town oilfield in dongying depression. the target stataum develops in the hanging wall of the synsedimentary fault in the scarp zone of dongying depression. the frequently intense movements result in the variation of sandstone and conglomerate reservoir and the evolution of the time and space of sha3 lower member and sha4 upper member in yong " an town oilfield
研究區是東營凹陷永安鎮油田沙三下段、沙四上段的沖積扇和扇三角洲砂礫巖體，目的層發育在東營凹陷陡坡帶同生斷層的下降盤，因斷層多期強烈活動，導致永安鎮油田沙三下段、沙四上段的砂礫巖體成因類型多，時空演化變化大，在扇根一帶小層對比難度大，給油田開發帶來很大的難題，在這種背景下進行流動單元研究難度更大。 -
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。 -
From paleocene to miocene, the sedimentary facies evolved from the extensive alluvial fan to the braided fluvial river environment
從古新世到中新世，柴達木盆地北緣經歷了由大規模沖積扇沉積到辮狀河沉積的演化過程。 -
The sedimentary systems were alluvial fan - braided fluvial river - lacustrine depositional systems during the paleocene - eocene, and braided fluvial river - lacustrine depositional systems during the oligocene - miocene
古新世始新世發育沖積扇辮狀河湖泊沉積體系，漸新世中新世發育辮狀河湖泊沉積體系。 -
The upper cretaceous jingzhushan formation in the biru basin, xizang consists of a succession of coarse - grained elastic rocks in the alluvial fan - fan delta depositional system, intercalated with intermediate - acidic volcanic rocks including dacite, andesite, quartz trachyandesite and rhyolite
摘要上白堊統競柱山組為一套沖積扇扇三角洲沉積體系的粗碎屑巖，間夾由英安巖、安山巖、石英粗安巖和流紋巖組成的中酸性火山巖。 -
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。 -
The sedimentary facies show a depositional evolution from the deep - water sediments through shallow - water sediments to the continental sediments, including alluvial fan, river, lake, delta ( tide - dominated ), barrier coast, shallow sea, deep sea and volcanic debris flow deposits
在沉積相上，經歷了從深水沉積到淺水直至陸相沉積的演變，發育有沖積扇、河流、湖泊、三角洲（潮汐） 、障壁海岸、淺海、深海和火山碎屑流沉積。 -
In the basin, there were some different sedimentary systems - river sedimentary system, lake sedimentary system, the delta sedimentary system, fan delta sedimentary system and alluvial fan sedimentary system
三塘湖盆地沉積地層中發育不同的沉積體系?河流沉積體系、湖泊沉積體系、三角洲沉積體系、扇三角洲沉積體系和沖積扇沉積體系。 -
It was mainly river sedimentary system in early jurassic period, lake sedimentary system and delta sedimentary system in middle - later jurassic period and there are fan delta sedimentary system and alluvial fan sedimentary system in the edge of basin
早侏羅世以河流沉積為主，中晚侏羅世整個盆地以湖泊沉積體系和三角洲沉積體系，邊緣區出現扇三角洲沉積體系和沖積扇沉積體系。 -
The depositional character of zhuxiang formation in the basin reads as follows : a series of nne alluvial fan were formed along the fault. the half - deep lake to deep lake faces appeared by west side of the fault, towards the west the saucer lake faces, shore deposit and flood plain face appeared in proper order. the depositional center of lower cretaceous was formed in eastern part of the basin, and the depositional depth was pinch - out and thinning out from the east to the west
盆地內下白堊統朱巷組沉積特徵表現為：沿郯廬斷裂帶呈北北東向廣泛發育了沖積扇體系，從近斷裂帶西側出現的半深湖-深湖相，向西依次為濱淺湖相到泛濫平原相的規律性分佈，沉積厚度由東向西尖滅、超覆，構成了明顯的東斷西超的盆地構造格局，表明下白堊統的沉積中心依然位於盆地東部。 -
The sedimentary facies of the jurassic penglaizhen formation in the studied area can be described as follows : from the edge of the basin, the source of deposition, to the center of the sedimentation are alluvial fan facies fluvial facies fan delta facies delta facies lake facies and lake floor fan facies in turn
研究區侏羅世蓬萊鎮期沉積盆地的沉積相類型分佈，從盆緣近物源區至盆地沉降-沉積中心區依次為沖積扇、河流相、扇三角洲相、河控三角洲相、湖泊相和湖底扇相等沉積體系。 -
A 2 - d model for debris flow is tested by experimental data of debris flow deposition. the plane extent, maximum length and width of the alluvial fan are computed under different conditions of supply process, initial ground slope and flow density
為了驗證二維粘性泥石流運動數學模型的正確性，以泥石流小型堆積模型試驗為模擬對象，計算模擬在不同來流方式、堆積區坡度和泥石流容重情況下的泥石流堆積范圍。 -
This text utilizes the sedimentation and petroleum geology theories, makes use of outcrop, well drilling and analysis datum, studies deeply sedimentary facies and microfacies in chang - 6 to chang - 8 oil - bearing layers of triassic period at longdong region in e ' erduois basin. the sedimentary facies include three type : alluvial fan, lake delta, lake and their corresponding parfacies and microfacies. the spreading of the delta has been detailed researched
本文運用沉積學、石油地質學理論，充分利用露頭、鉆井和測試分析資料，對鄂爾多斯盆地隴東地區三疊系延長組長_ 6 ?長_ 8層位的沉積相、微相進行了深入研究，劃分出沖積扇，河流、河湖三角洲、湖泊四種相及其對應的亞相、微相；並對研究區三角洲的展布進行了詳細研究。 -
2 ) analyses and researches systematicly the lithofacies, sedimentary facies and depositional environment of the dayi conglomerate in the cenozoic longmenshan foreland basin. this paper analyzes detailed six coarse elastics lithofacies, five mid - elastics lithofacies and three fine elastics lithofacies. establishes the association of three depositional environment types including alluvial fan and river
2 ）對新生代龍門山前陸盆地大邑礫巖巖相、沉積相和沉積環境進行了系統分析和研究，劃分出6種粗碎屑巖相、 5種中碎屑巖相、 3種細碎屑巖相，確定了大邑礫巖為沖積扇相、河流相沉積環境的組合。 -
There are two types of sedimentary facies in this region : the alluvial fan and the braided fluvial river
結綠素紅山地區古新統至中新統發育2種沉積相類型，即沖積扇和辮狀河。 -
Near the faulty step - break, low stand system developed, and some sediment system distribute broad, such as alluvial fan, low stand wedge, low stand fan, and so on. the sand body can form not only the trap of dying out upward and sand lens, but also fault - iithology trap. the study shows that fault - lithology trap is most important trap style in study area especially sha - 3 formation
斷階坡折附近是低水位體系域發育的重要場所，常發育沖積扇、沖蝕作用的下切河道以及低水位楔狀體、低水位扇體等沉積體系，這些砂體不僅具有形成上傾尖滅或砂巖透鏡體圈閉的條件，而且可形成斷層?巖性圈閉。
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