陡砂層 的英文怎麼說
中文拼音 [dǒushācéng]
陡砂層
英文
bluff sand-
From sedimentology symbol such as rock assembled, sediment gradus, sandstone grading analysis, protogene sedimentary structure, ichnofossile and logging facies etc and palaeoenvironment background, it is confirmed that shen84 - an12block s34 segment is braid river delta system, not fan delta system ( abrupt slope ). then it can be more partition as braid river delta plain sedimentary assembled, delta front sedimentary assembled and prodelta sedimentary assembled on core and log assembled. and delta plain sedimentary assembled can be identified four microfacies : braided distributary channel, crevasse splay, overbank deposits and interdistributary bay
沉積微相研究是儲層非均質性研究的基礎，研究區有豐富的巖芯資料和測井資料，通過巖石組合、沉積韻律，砂巖粒度分析、沉積構造、古生物遺跡和測井相等沉積學標志，結合古環境背景，確定沈84 ?安12塊s _ 3 ~ 4段為辮狀河三角洲體系，而不是前人所認為的扇三角洲（陡坡型）體系，在巖芯和測井組合上可進一步劃分為辮狀河三角洲平原沉積組合、三角洲前緣沉積組合和前三角洲沉積組合，其中三角洲平原沉積組合又可識別出辮狀分流河道、決口扇、分流河道邊部和分流間灣四種微相類型；三角洲前緣沉積組合識別出水下分流河道、水下分流河道邊部和分流河口壩三種微相。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。The main conclusions are as follows ; firstly, under the influence of three phases of episodic activities, three two - order sequences is composed of three depositional cycles and three regional unconformities ; secondly, under the control of structure activities such as fault - block activities and the influence of three - order climate cycles and source recharge, lower cretaceous can be divided into six three - order sequence ; thirdly, because fault activities is weak and fault slope is gently, fan deltas exist in steep slopes in early and later stages and subaqueous fans exist and turbidite fans exist in troughs in middle stage
主要的結論為：其一，受三期幕式活動影響，斷陷形成了3個大的沉積旋迴和3個區域不整合面，構成了下白堊統3個二級層序；其二，受斷陷內翹傾和塊斷等構造活動的控制，以及三級氣候旋迴和物源供給因素的影響，下白堊統劃分出6個三級層序；其三，在單斷斷陷湖盆中，湖泊階段的早、晚期由於凹陷邊界斷層活動較弱，斷面較緩，陡坡可以發育扇三角洲，在湖泊階段的中期主要為水下扇砂礫巖體，並在窪槽區發育濁積扇。It summarized the comprehensive geophysical and chemical prospecting information model of interlayer oxodatipn zone sandstone - type uranium deposit. that is, the thermoluminescent anomalies, whose two ends are higher and the middle is lower, the rapidity step of natural voltage and the geogas anomalies of u indicate the uranium deposit
最後歸納總結出了層間氧化帶砂巖型鈾礦的綜合物化探信息模式，即土壤天然熱釋光的低值；自然電位的陡梯度帶；鈾的地氣高值異常信息基本反映了鈾礦體的客觀存在。4. the non - linear interaction mechanism derived from the scale of system was discussed. the paper deemed that, falling sliding face is not a rectilinear type, the non - linear coupling of falling factors sharply enhanced in large sand - pile ; the stabilization of surface layer sands are different in the time and space, especially the stating probability is higher than halting, and probability of fault in slope foot is higher than top as well ; the faulting forms will be affected by bounder situation strongly
大尺度散粒體坡面的崩塌滑動面，一般並非直線形，在崩塌過程中的耦合作用將增大落沙規模；理想化的沿直線坡面滑動情況，坡面表層砂粒的穩定性也並不是在時間、空間上都均衡的，可以造成起動容易止動難，或坡角失穩概率大從而牽連整個坡面的情況；長大高陡坡面的失穩形式，可以受坡腳（邊界）的巨大影響。分享友人