gravel basin 中文意思是什麼
gravel basin
解釋
沉泥井-
According to the characters of the compositional heavy mineral, diameter and composition of gravel, primary sedimentary structure, the sediments came from east part of the basin. they had distinguishing feature of near provenance and quickly deposit
由朱巷組重礦物組合、礫徑、礫石成分及原生沉積構造等特徵反映出沉積物來自於盆地東部，並具有近源、快速沉積的特點。 -
The basement of the basin is consist of precambrian crystal basement and paleozoic folding basement, while the cover has undergone the evolution of intra - continental rife in permian, down warped basin in triassic - cretaceous period and inter - mountains basin in tertiary. the main sediments are huge - thick volcanic rock, shallow intrusive rock and tuff in early permian, dark mudstone, marl and muddy dolostone in lucaogou formation in middle permian, huge thick volcanic rock, intruder in tiaohu formation in middle permian, miscellaneous sandy gravel, sandstone and gray mudstone in triassic ( the red is under the gray, and huge - thick dark gray, gray sandy gravel, sandstone, mudstone with coal layer in jurassic
盆地基底由前寒武紀結晶基底和古生代褶皺基底組成，盆地蓋層則經歷了二疊紀的裂谷盆地、三疊紀?白堊紀的坳陷盆地和第三紀后的山間盆地的演化過程。盆地主要沉積了下二疊統巨厚火山巖、淺成侵入巖和凝灰巖；中二疊統蘆草溝組的暗色泥巖、泥灰巖、白雲質巖石以及條湖組的巨厚層火山巖、侵入巖；三疊系雜色砂礫巖、砂巖及灰色泥巖（下紅上灰） ；以及侏羅紀厚層深灰、灰色砂礫巖、砂巖、泥巖夾煤層。 -
3 ) according to the dayi conglomerate " s gravel composition and direction when water flowed during geological age, comeback the paleogeograph of the longmenshan foreland basin, speculates that the dayi conglomerate " material source is located in the songpan - ganzi fold belt to the east, the pengguan fault to the west of the western sichuan plateau region
3 ）根據大邑礫巖礫石成分及古流向分析，推測大邑礫巖物源區為松潘-甘孜褶皺帶以東、彭灌斷裂以西的龍門山地區，並恢復大邑礫巖沉積時期巖相古地理，認為大邑礫巖物源主要來自龍門山沖斷帶一側。
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