礫洲 的英文怎麼說
中文拼音 [lìzhōu]
礫洲
英文
gravel shelf-
Sand and gravel may form bars within the channel.
沙和礫石可以在溝槽內形成沙洲。The characteristic of shehejie group of tertiary gritstone fan body in wangzhuang area of dongying depession
3段扇三角洲砂礫巖體沉積特徵分析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 sahara ' s topographical features include shallow basins, large oasis depressions, serirs or regs ( gravel - covered plains ), plateaus, mountains, sand sheets, dunes and sand seas ( ergs )
撒哈拉沙漠地形特點包括:淺的盆地、大的蕭條的綠洲、砂礫性沙漠或礫質沙漠(碎石覆蓋的平原) 、高原、沙席(小沙原) ,沙丘和沙海(砂質沙漠) 。Many patient taxonomists from several european countries and america then sieved through litres of muddy gravel with microscopes and pairs of tweezers to see what treasures had been captured
來自歐洲幾個國家和美國的許多分類學家耐心地用顯微鏡和鑷子對數以升計、沾滿爛泥的沙礫進行篩分,來看看什麼樣的寶貝被鏟了上來。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。Glutenite sedimentary characteristics analysis taleogene period of es3 4 fan delta in wangzhuang area of dongying depression
東營凹陷王莊地區古近紀沙河街組三段扇三角洲砂礫巖體沉積特徵分析In a way, the evolution to upward of distributary channel microlithofacies in shelf delta plain of later carboniferous epoch in this area is repeatedly and rapidly, and every time is a normal grading change from coarse to thin, at last it evolve into marshy deposit
應用馬爾柯夫鏈分析方法得到的結果是,本區石炭統上段礫石質三角洲平原分支流河道的微巖相旋迴的向上演化,是重復而迅速的,每次都是由粗到細的正旋迴,最後演化為沼澤沉積。They are the finely - layered siltstone that formed ping chau, the port island conglomerate, the thick volcanic rock layers ( tuff ) along the coast of po pin chau and the granite at lamma island. these stamps appeal not only to the eyes, but also to the hands because of the tactile coating that achieved with the application of thermography
四款郵票上的巖石圖案和設計分別取材自平洲的粉砂巖、赤洲的礫巖、破邊洲的凝灰巖和南丫島的花崗巖;我們除了可以用肉眼去欣賞之外,更可以用手去觸摸、去感受。The bridge is located on the alluvial plain in the front of pearl river sloping field. its piles pass through weak soil layer, sandy clay and gravel stratum ; piles " sustaining layer sits in weak - weathering or faint - weathering mudstone
該橋位於珠江三角洲坡前沖積平原,採用樁基穿越軟土、亞粘土、砂土和礫砂,持力層置於弱風化和微風化的泥質砂巖和泥灰巖夾泥巖中。By studying the lithologjcal and mineral parameters ( pebbled elastics percent ratio, clastic maturation index, heavy crop stability factor ) of mesozoic sedimentary strata, the result shows that the northern boundary of present basin is near to the boundary of original basin and the moving distance of elastics is short, but the southern boundary of present basin is far from the boundary of original basin and the moving distance of elastics is long. the fades of northern basin are mainly delta fades and the fades of middle and southern basin are lacustrine fades
通過對盆地中生代沉積地層中各種巖礦參數(碎屑巖含礫百分比、碎屑成熟度指數和重礦物穩定系數)分析和綜合研究認為,今盆地北部距離原始盆地沉積邊界較近,碎屑物搬運距離較短;南部距離盆地古沉積邊界較遠,沉積物搬運距離較遠;中生代盆地北部主要為三角洲沉積相,中南部為湖泊相沉積。The port island conglomerate has a very distinctive reddish - brown colour. the rocks were formed from sediments
赤洲礫巖的顏色是特別的棕紅色,由沉積物形成。分享友人