海積層 的英文怎麼說
中文拼音 [hǎijīcéng]
海積層
英文
marine deposit-
The research indicates that the modern sediment is divided three layers : polluted layer, transition zone and unpolluted layer. just the pollute layer cause dianchi lake environmental pollution. the high value district of ammoniac nitrogen distributes near northern part haigeng mainly, middle part increase slightly, have most lower near southern part, the content of ammoniac nitrogen of the polluted layer sediment lower than the lower layer ; the high value district of effective phosphorus distributes near haikou - jinning, from the north to the south, the content of effective phosphorus increases progressively, the content of effective phosphorus of the polluted layer sediment obviously higher than the lower layer
研究結果表明:滇池現代沉積物主要分為三層,污染層、過渡層和未污染的湖泊沉積層,其中污染層是對滇池環境污染造成影響的層位;氨氮的高值區主要分佈在北部海埂附近,中部略有增高,南部則最低,表層沉積物的氨氮含量低於下層;而有效磷的高值區則分佈在海口?晉寧附近,由北向南,有效磷的含量依次遞增,表層有效磷的含量要明顯高於底層。These fluctuations control the distribution of the sequences.
這些海平面的浮動控制了沉積層序的分佈。Grain - size variations of terrigenous sediment sequences in the south okinawa trough
沖繩海槽南部沉積層序的粒度特徵Many research such as clay minerals, suspend in the sea, the grain size trend analysis of surface sediment, poc 6 cu and 8 c13 in bottom sediments etc. showed that : the yellow sea warm current divided the south yellow sea into two, the terrestrial material of modern sediment on the west shelf plain mainly came from the modem yellow river suspend carried by the alongshore current, and the sediment difference between the west and east side of yellow sea trough was represented by the sedimentation thickness in postglacial period, sedimentation stratum, and oxygen isotope record
粘土礦物、碳酸鹽、粗碎屑、海域懸浮體、表層沉積物粒度趨勢分析、 poc c ~ ( 13 )及底質沉積物的c ~ ( 13 )等多方面研究表明:以黃海暖流為主導,南黃海堆積陸架平原西側現代沉積物陸源物質主要源於黃海沿岸流攜帶的現代黃河懸移物質,黃海槽東西兩側的沉積差異主要表現在冰消期以來沉積厚度、沉積層序、氧同位素記錄上。Using radiocarbon techniques on sediments collected from four rivers, they determined that bacteria may alter riverine carbon, making it indistinguishable from ocean carbon
科學家以放射性碳技術研究收集自四條河流的沉積層,發現細菌可以改變河水裡的碳,使它與海水裡的碳無法區別。The qiantang basin, having the most complete and extensive marine sedimentary strata during jurassic, is the second larger mesozoic marine sedimentary basin. although many achievements are obtained in recent years, the research are still only involved in second - or third - order of mesozoic sequence. on the base of sedimentation facies analysis of matuo formation, high frequency sequence are studied
藏北羌塘盆地地處青藏高原腹部,是我國中生代第二大海相沉積盆地,侏羅紀是羌塘盆地發育最全、分佈最廣泛的海相沉積層系近年來,羌塘盆地在層序地層方面的研究已取得不少成果,但其層序地層研究多涉及中生代二級或三級層序,至於高頻層序,尚未進行詳細的研究。By comparing with the strata of " holocene series of the coastal plain of laizhou bay " and combining 14c age measurement, the strata position and features of the lagoon ? hallow sea ? each sedimentary facies are confirmed. the stratigraphic division of upper marine facies of holocene is done and the sedimentary environment of every stratum is affirmed
通過與「萊州灣濱海平原全新統」進行地層對比並結合~ ( 14 ) c測年數據,確定了該沉積區全新世瀉湖?淺海?海灘相沉積層的層位和特徵,並對該層及其以上地層進行地層劃分,判斷出各層的沉積環境。The effects of sediment parameters on the multi - path structure in shallow water are investigated in detail. a method of dividing the multi - path arrival time differences into groups is presented. theoretical analysis for the method is given
詳細研究了沉積層聲速、密度和衰減系數變化對淺海多途到達結構的影響,提出了對多途到達時延差進行分組的研究方法,從理論上對該方法進行了研究。The sediments of the incised valleys show an upward - fining succession, and can be grouped into four sedimentary fades : gravel lag - deposit of in - channel to partly over bank sediments of a meandering river, flood plain - estuary, estuary - shallow marine, and estuary sand bar, based on lithology, paleontology, and sedimentary textures and structures
根據巖石學、沉積結構和沉積構造特徵,本區下切河谷充填沉積物具有向上變細的沉積層序,可以劃分為4個沉積相類型:河床滯留沉積物到部分曲流河沉積體系的邊灘沉積、河漫灘河口灣沉積、河口灣淺海沉積和河口灣砂壩沉積。The effects of sound field by sediment in shallow water
關于淺海沉積層對聲場影響的討論Secondly, granularity analysis of sediments of upper marine facies of holocene is done
其次,對全新世海相層及其以上地層中的沉積物進行粒度分析,劃分垂向沉積序列。The qiangtang basin, having the most complete and extensive marine sedimentary strata during jurassic, is the second larger mesozoic marine sedimentary basin
藏北羌塘盆地地處青藏高原腹部,是我國中生代第二大海相沉積盆地,侏羅系是羌塘盆地發育最全、分佈最廣泛的海相沉積層系。The upper layer sediment of core q43 in the outshelf of the southern east china sea shows that it is the regressive sequence of littoral facies to offshore facies and of representative significance
以q43巖心為代表的東海南部外陸架上層沉積物,是末次冰期海退層序中,濱岸相-濱外淺水相沉積。There were three times of sea - level fluctuation corresponding to the paleo - climate evolution, which had formed the sediments of alternative sea and river facies
晚更新世以來的三次海平面升降變化造成了濰河下游地區海陸沉積環境交替,形成了巨厚的海陸交互相沉積層。( 3 ) box model results indicate that the net flux of suface water, flowing into the south china sea, is about 8. 364x 106t / s and the net flux of water, which is under suface water, flows out of the south china sea at about 8. 229x 106t / s on annual average. the quantity of din, reactive phosphate or reactice silicate, which sinked into deep water in the form of particle matter, was about 78, 71 and 80 percent of total quantity of din, reactive phosphate and reactive silicate, which flowed into suface water in any ways. but in these particle matters, ahout2. 9 percent of particle nitrogen, 2. 0 percent of particle phosphor and 8. 2 percent of particle silicon sinked into sediment
( 3 )據「箱式模型」估算年度平均南海表層水通量約為8 . 364 10 ~ 6t s的凈輸出,表層之下水體約有有8 . 229 10 ~ 6t s的凈輸入;同時到達表層溶解態無機氮、活性磷酸鹽和活性硅酸鹽總量中約有78 、 71和80隨顆粒物質下沉到深海;其中未被分解而進入海底沉積物的顆粒態氮、磷和硅僅占由表層沉降深海顆粒態氮、磷和硅的2 . 9 、 2 . 0和8 . 2 。Stepwise discriminant analysis used for discriminant sediment source of the south of the yellow sea
南黃海表層沉積物物質來源的逐步判別分析Prior records had shown much slower motion along the offshore fault there, so it was unclear that stress could ever build up enough to result in such a violent tremor
以往的記錄顯示,沿著那條近海斷層,雖常發生速度較慢的地層活動,但引發這場海嘯的應力是如何累積到足以導致猛烈震動,原因不得而知。This dissertation studies the inversion of sound speed profile ( ssp ) in shallow water, including the effects of sediment parameters on the multi - path arrival structure, the algorithm of the ssp inversion using multi - path arrival time differences and the ssp inversion based on matched beam processing ( mbp ). 1
採用理論分析、數值模擬方法研究了沉積層參數對淺海多途到達結構的影響;推導和論證了到達時差反演淺海聲速剖面演算法、提出和研究了用匹配波束處理反演淺海聲速剖面演算法,並且應用東中國海實驗數據對這兩種演算法進行了驗證。The effect of sediment parameters on sound speed profile inversion using time differences of acoustic ray arrivals in shallow water
淺海中沉積層參數對多途到達時差反演聲速剖面的影響The dynamic physical parameters were studied for design and construction of bucket foundation, according to the qualities of and the conditions around the bucket foundation penetrated soil, the strain of penetrative marine soft clay were calculated by j2 flow theory and isotropic hardening theory
摘要為研究筒型基礎內海積土的物性參數,結合筒內沉貫土層性質及沉貫環境,應用j2流動理論和各向同性硬化原理計算沉貫過程中土顆粒的應變,考慮到土中出現貫通裂隙,應用離散元方法計算土體骨架應變。分享友人