谷底沉積 的英文怎麼說
中文拼音 [gǔdechénjī]
谷底沉積
英文
valley flat sediment- 谷 : 谷名詞1 （兩山或兩塊高地中間的狹長而有出口的地帶） valley; ravine; gorge 2 （姓氏） a surname 3 ...
- 底 : 底助詞（用在定語后, 表示定語和中心詞之間是領屬關系, 現在多寫作「的」）
- 沉 : Ⅰ動詞1 （沉沒; 墜落） sink 2 （沉下 多指抽象事物） keep down; lower 3 [方言] （停止） rest Ⅱ形容...
- 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
- 谷底 : valley bottom; valley floor谷底灘地 strath; 谷底腫脹 bulging in valley （凍土區）
- 沉積 : [地] deposit; sedimentation; deposition; precipitation
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In the research area, the incised valley was formed during the sea level downwards and was provided source by the arenaceous river from qiaotou. it is stacked by 3 incised valleys formed in 3 different sequences
研究區內子洲鎮川堡地區發育的下切河谷形成於海平面下降時期，來源於橋頭的砂質河流沉積，為疊置的、形成於三個不同三級層序底部的下切河谷充填沉積。The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury
研究內容主要有：廣州市河涌沉積物及底棲生物體內重金屬含量及評價；汞和硒對劍尾魚的急性毒性和聯合毒性及安全濃度的評價；汞對劍尾魚鰓和肝臟中抗氧化系統的毒性，包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用；汞對劍尾魚組織生理毒性即：汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍尾魚組織超微結構的損傷等。以高氯酸?硝酸消化法和火焰原子吸收分光光度法測定了廣州市河涌沉積物和底棲生物中重金屬含量。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。
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