alluvial 中文意思是什麼

alluvial 解釋
adj. 形容詞 【地質學；地理學】沖積的。
alluvial deposits 沖積物。
alluvial gold 沙金。
n. 名詞 沖積土[層，礦床]，淤積土。

  1. ( 1 ) the soil from century garden is an alluvial and diluvia soil in an alkalescent medium

    （ 1 ）世紀花園地基土是在弱偏堿性介質環境下形成的沖洪積沉積。
  2. 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。
  3. Thus, alluvial channel flows are simultaneously sculptor and sculpture.

    這樣，沖積河槽水流既是塑造者，同時又是被塑造者。
  4. The water cuts the alluvial banks of the "lower" river into deep horseshoe curves.

    河水把下游那些沖積的河岸沖成很深的馬蹄形曲線。
  5. Alluvial soil was found to be more likely to show a greater deficiency of magnesium than glacial till soils.

    沖積土比冰川土更容易呈現較嚴重的缺鎂。
  6. A number of alluvial fans along the base of a mountain may coalesce to form a continuous alluvial slope.

    沿著山腳的一些沖積扇可能聯合起來形成連續的沖積坡。
  7. 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。
  8. Small alluvial fans at mouths of wet weather drainage ways also are commonly intermixed indistinguishably.

    潮濕氣侯地區河道出口處的小沖積扇，其沉積物的混合通常也難以區別。
  9. In loessal regions and alluvial valley fills of the western united states, both surface soil and subsoil are commonly friable.

    在美國西部黃土區和沖積河谷里，表土和底土一般是容易破碎的。
  10. Low - lying alluvial land adjacent to a river

    低洼地，灘地與河流鄰接的低洼沖積地帶
  11. Scheme study of vertical cutoff wallused for dike on alluvial foundation

    沖積地基堤防垂直防滲方案研究
  12. 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。
  13. Alluvial deltaic cycle

    沖積三角洲旋迴
  14. The elementary idea of the reference units method can be described as follows : firstly, by the setting of double series of reference units, we can control the highest and lowest land quality class of each village or town ; secondly, the class of the arable land will be get through the contrast between the arable land with the reference unit which has been selected in the same area, the difference in quality is the key factor to classify the land. the results show, 87. 6 % of the lands from i to iii distribute on alluvial and lacustrine plains, where the associated soils are mainly grey fulvo - aquic and calcareous concretions black ones. and 61. 4 % of them from iv to vi distribute on slightly rolling parts with mainly yellow - cinnamon soil developed from the diluvial and slope deposits

    分等結果表明：臥龍區等的耕地中，有87 . 6分佈在沖積、湖積平原區，主要土壤類型是在河流沖積物上發育形成的灰潮土、在湖相沉積物上發育形成的砂姜黑土；等耕地中，有61 . 4分佈在壟崗區，主要土壤類型是洪坡積物上發育形成的黃褐土：而、等耕地集中分佈在丘陵區，主要土壤類型是殘坡積物上發育形成的粗骨性黃褐土，等別結果分佈總體上體現了不同地貌類型、土壤條件下耕地質量的差異。
  15. The analysis on the development of alluvial and lake landform in fen river drainage basins

    中更新世中晚期以來汾河流域地貌階段性發育及成因分析
  16. The gran chaco is an alluvial plain covered with grass and hardwood forest in northeastern argentina, northwestern paraguay and southeastern bolivia

    大查是一個沖積平原上復蓋著草和闊葉林在阿根廷東北部，西北巴拉圭和玻利維亞東南部
  17. 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。
  18. 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。
  19. Bangkok is surrounded by a vast, damp, alluvial plain, crisscrossed by a network of klong

    曼谷為一個廣闊潮濕的沖積平原所環繞，有縱橫交錯的運河網。
  20. 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。
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