巖流單位 的英文怎麼說
中文拼音 [yánliúdānwèi]
巖流單位
英文
flow units-
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。Many studies had attempted to characterize chemical weathering process by focusing on geochemisty of river particulate and sediment. the sediment geochemistry may reflect and compare with the carbonates and silicates weathering degree by introducing the chemical index of alteration ( cia ) and new sediment index of variation ( siv ) and elemental molar abundance ratio of the sediment. the one main objective of this study would provide and compare the relative weathering intensities of silicates and carbonates with the different basins
2沉積物地球化學與化學風化進程和機械剝蝕率化學風化指數與化學風化率屬于表徵化學風化作用意義不同的函數，前者為相對概念反映流域巖石在原巖基礎上己發生淋溶作用的深度，主要受到了氣候因子的深刻影響（中國流域沉積物化學風化指數由北到南呈有規則的遞增序列，氣候因子對風化進程的影響掩蓋了巖性的巨大差異） ，而化學風化率含義是指單位流域面積巖石風化淋溶產生的離子絕對總量。Abstract : it has been established that titanium exists in jinduicheng molybdenum deposit in rutile type by test for all kinds of ores. its grade is about 1 %. there isn ' t concentration in products. the particle size is fine, and the distribution isn ' t evenly. it has a definite economic benefit if it recoveried from tailings
文摘:通過對金堆城鉬礦床中各種類型礦石的系統測試，查明了鈦在該礦床中主要以單礦物金紅石的形式存在於花崗斑巖各蝕變帶的鉬礦礦石中，品位約為1 % ，產品中沒有富集，基本隨尾礦流失，粒度細，分佈不均，從尾礦中進行綜合回收，具有一定的經濟效益。
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