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扬子浅滩
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  yangtze shoal
     Piston core DGKS9617 (31° 18.58' N, 124° 26.437' E, water depth 57m, core length 851cm) locates on the edge of Yangtze Shoal, inner shelf of the East China Sea. It is a long piston core of this area.
     DGKS9617孔(31°18.58′N,124°26.437′E)位于东海内陆架北部扬子浅滩边缘,水深57m,柱长851cm,是目前该区所取得的较长的一个重力柱状样。
短句来源
     A Study of Sandy Bedforms on the Yangtze Shoal in the East China Sea
     东海扬子浅滩砂质底形研究
短句来源
     Results show that the sub-bottom strata at the brim of Yangtze shoal consists of two layers.
     结果表明在东海外陆架扬子浅滩前缘,浅部沉积地层自上而下可分为两层。
短句来源
     Combining high resolution geophysical and sedimentological data obtained from several special investigations during 1980~2000 with analyses of hydrodynamic environments, this paper studied the cause of formation, pattern, movement and age of stratum of the sandy bedforms on the Yangtze Shoal in the East China Sea.
     根据 198 0至 2 0 0 0年间数次专项调查获得的高分辨率地球物理、沉积学等资料 ,并结合水动力环境的分析 ,探讨了东海扬子浅滩砂质底形的成因、形态特征、活动性以及发育的地层年代。
短句来源
     It is shown from the simulated results that the sandy sediments on the outer shelf of the East China Sea south of the Yangtze Shoal have formed basically since the -80m sea level period.
     结果表明 ,扬子浅滩南侧东海外陆架的砂质沉积基本上是自 - 80 m海面以来形成的。
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  “扬子浅滩”译为未确定词的双语例句
     The study area is located in the east of changjiangriver in East China Sea(30.7o~32.6oN、122.5o~125oE),which water deep 30~50m and an area of 3×104sqmeters.
     本文所研究的扬子浅滩位于内陆架外缘长江口东侧30.7o~32.6oN、122.5o~125oE处,水深30~50米,总面积约3万km2。
短句来源
     Research on the Activity of Sand Waves Bedforms in the Yangzi Shoal
     扬子浅滩沙波底形活动性研究
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  相似匹配句对
     The author considers that there arethree subspecies of Neophocaena phocaenoides existing in the Chinese waters, thatis, N.
     亚种N.
短句来源
     Research on the Activity of Sand Waves Bedforms in the Yangzi Shoal
     浅滩沙波底形活动性研究
短句来源
     A Study of Sandy Bedforms on the Yangtze Shoal in the East China Sea
     东海浅滩砂质底形研究
短句来源
     Sub Fund DanCing with Real Estate
     基金的地产舞步
短句来源
     It is shown from the simulated results that the sandy sediments on the outer shelf of the East China Sea south of the Yangtze Shoal have formed basically since the -80m sea level period.
     结果表明 ,浅滩南侧东海外陆架的砂质沉积基本上是自 - 80 m海面以来形成的。
短句来源
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Sediment transport patterns on the continental shelves of the Bohai Sea, Yellow Sea and East China Sea (BYECS) during nine special periods of the Holocene were simulated under the effect of tidal currents. The results show that the formation of the comb-shaped paleo-sand ridges, which stopped developing after -52 m sea level period, was the result that tidal currents transported the eroded late Pleistocene material on the seabed and the material from rivers towards southeast during -80 m sea level to -52 m sea...

Sediment transport patterns on the continental shelves of the Bohai Sea, Yellow Sea and East China Sea (BYECS) during nine special periods of the Holocene were simulated under the effect of tidal currents. The results show that the formation of the comb-shaped paleo-sand ridges, which stopped developing after -52 m sea level period, was the result that tidal currents transported the eroded late Pleistocene material on the seabed and the material from rivers towards southeast during -80 m sea level to -52 m sea level period. The formation of the Yangtze Shoal, which had developed well up to -30 m sea level period, results from that rotatory tidal currents have been fan shapedly carrying away finer sediments in the Pleistocene material and in the material supplied by rivers after -52 m sea level period so that coarser sediments remain finally. The mud in the central part of the southern Yellow Sea, has been a "sink" of fine sediments from different areas since -52 m sea level period, however, sediment supply has been not enough. The formation of the sand ridges in the western Korea Bay and the sand sheet in the Jianghua Bay is the result that rectilinear and rotatory tidal currents have been eroding the late Pleistocene material on the seabed, respectively, since the Holocene transgression maximum (HTM). The formation of the Liaodong Shoal and Bozhong Shoal resulted from that strong tidal currents have been transporting the eroded late Pleistocene material in the Laotieshan Strait to deposit in the sea area west of the Liaodong Peninsula since the HTM. The formation of the sandy sediment in the Haizhou Bay is the result that tidal currents have been carrying away finer sediments in the late Pleistocene material and in the material from rivers so that coarser sediments finally remain since the HTM. The formation of the Radial Sand Ridges in the southern Yellow Sea results from that radial tidal current field has been reforming the sediment from the Yellow River and the Changjiang River since the HTM. The mud in the west of the northern Yellow Sea, which is not a "sink" of fine sediment, locates in the bypass area of sediment transport, thus, it forms when sediments from the Yellow River are transported into the Yellow Sea through the southern part of the Bohai Strait. The deposition centers of the mud in the central Bohai Sea are located at its southern and northern ends, respectively, and the main sediment sources of the mud is the sediment from the Yellow River. The main sediment sources of the mud off the Zhejiang Fujian coast are the sediment from the Changjiang River and the sediment from the Zhejiang Fujian coast. The mud in the central part of the southern Yellow Sea, the mud in the west of the northern Yellow Sea, the mud in the central Bohai Sea and the mud off the Zhejiang Fujian coast generally correspond to weak tidal current areas. The mud in the sea area southwest of the Cheju Island and the mud in the east of the Yellow Sea began to develop at latest during -30 m sea level period, and their sediment sources may be partly from the Changjiang River. During a certain period of the Holocene, the sediment transport pattern was controlled by the strength, type and asymmetry of tidal currents in different areas on the continental shelves of the BYECS. The evolution of sediment transport patterns on the continental shelves of the BYECS has been controlled by the evolution of tidal current fields since the Holocene transgression began.

模拟了全新世 9个特定时期潮流作用下渤、黄、东海陆架上的泥沙输运状况。结果表明 ,东海外陆架梳状古沙脊形成的盛期在 - 80m至 - 52m海面期间 ,主要是潮流将侵蚀的海底晚更新世物质与河流的入海泥沙向东南方向输运而形成 ;- 52m海面之后 ,该古沙脊逐渐停止发育。扬子浅滩形成于 - 52m海面之后 ,至 - 30m海面时已发育比较成熟 ,它主要是旋转流将海底晚更新世物质与全新世河流入海泥沙中的细粒物质呈扇形向外簸选掉 ,粗粒物质留在原地而形成。南黄海中部泥在 - 52m海面时已开始形成 ,该泥是细粒物质的汇 ,泥沙来源具有多源性 ,但泥沙来量不足。西朝鲜湾沙脊与江华湾沙席、辽东浅滩沙脊与渤中浅滩沙席、海州湾中砂质沉积、南黄海辐射状沙脊以及北黄海西部泥、渤海中央泥、浙闽岸外泥主要形成于全新世最大海侵以来。西朝鲜湾沙脊与江华湾沙席分别是强往复流与旋转流主要侵蚀海底的晚更新世物质而形成。辽东浅滩沙脊与渤中浅滩沙席主要是强潮流将老铁山水道中的晚更新世物质带到辽东半岛西侧海域沉积而形成。海州湾中的砂质沉积是潮流将海底晚更新世物质与河流入海泥沙中的细粒物质带往外海、留下粗粒泥沙而形成。南黄海辐射状沙脊是...

模拟了全新世 9个特定时期潮流作用下渤、黄、东海陆架上的泥沙输运状况。结果表明 ,东海外陆架梳状古沙脊形成的盛期在 - 80m至 - 52m海面期间 ,主要是潮流将侵蚀的海底晚更新世物质与河流的入海泥沙向东南方向输运而形成 ;- 52m海面之后 ,该古沙脊逐渐停止发育。扬子浅滩形成于 - 52m海面之后 ,至 - 30m海面时已发育比较成熟 ,它主要是旋转流将海底晚更新世物质与全新世河流入海泥沙中的细粒物质呈扇形向外簸选掉 ,粗粒物质留在原地而形成。南黄海中部泥在 - 52m海面时已开始形成 ,该泥是细粒物质的汇 ,泥沙来源具有多源性 ,但泥沙来量不足。西朝鲜湾沙脊与江华湾沙席、辽东浅滩沙脊与渤中浅滩沙席、海州湾中砂质沉积、南黄海辐射状沙脊以及北黄海西部泥、渤海中央泥、浙闽岸外泥主要形成于全新世最大海侵以来。西朝鲜湾沙脊与江华湾沙席分别是强往复流与旋转流主要侵蚀海底的晚更新世物质而形成。辽东浅滩沙脊与渤中浅滩沙席主要是强潮流将老铁山水道中的晚更新世物质带到辽东半岛西侧海域沉积而形成。海州湾中的砂质沉积是潮流将海底晚更新世物质与河流入海泥沙中的细粒物质带往外海、留下粗粒泥沙而形成。南黄海辐射状沙脊是辐射状潮流场改造北来的黄河泥沙与南来的长江泥沙而形成。北黄海西部泥的

The formation and distribution of bottom sediments on the continental shelves of the Bohai Sea, Yellow Sea and East China Sea (BYECS) are closely related to the transgression after the Last Glacial Maximum (LGM). Tidal currents have become the permanant and dominant acting forces on the continental shelves of the BYECS since the transgression after the LGM. To study the formation cause of bottom sediment distributions on the continental shelves of the BYECS from the viewpoint of long-term sediment dynamic evolution...

The formation and distribution of bottom sediments on the continental shelves of the Bohai Sea, Yellow Sea and East China Sea (BYECS) are closely related to the transgression after the Last Glacial Maximum (LGM). Tidal currents have become the permanant and dominant acting forces on the continental shelves of the BYECS since the transgression after the LGM. To study the formation cause of bottom sediment distributions on the continental shelves of the BYECS from the viewpoint of long-term sediment dynamic evolution process, the distribution patterns of seabed erosion/accretion and bottom sediment type on the continental shelves in six periods since the LGM under the actions of tidal current are simulated. It is shown from the simulated results that the sandy sediments on the outer shelf of the East China Sea south of the Yangtze Shoal have formed basically since the -80m sea level period. The Yangtze Shoal expanded to a fair size during the -30m sea level period, and has then adjusted gradually to the present size since the Holocene Transgression Maximum (HTM). The mud in the central southern Yellow Sea began to form during the -52m sea level period, extended to the northern Yellow Sea during the -30m sea level period, and has then adjusted gradually to the present size since the HTM. Many clayey and sandy sediments, such as the mud in the central Bohai Sea, the mud in the northwestern Yellow Sea, the sandy sediments west and north of the Liaodong Peninsula and the Subei Shoal, have gradually formed since the HTM. The evolution process of bottom sediment since the LGM is largely divided into two stages: (1) the first stage before the HTM is the formation stage of the general distribution pattern of bottom sediments; and (2) the second stage after the HTM is its local adjustement stage. In a special period, the distribution pattern of bottom sediments was mainly controlled by the tidal current field at that time, and the evolution of the distribution pattern of bottom sediment has been controlled mainly by the evolution of the tidal current field in the area since the LGM.

渤、黄、东海陆架底质的形成分布与末次盛冰期之后的海侵密切相关。末次盛冰期结束、海侵开始以来 ,潮流是渤、黄、东海陆架上的永久性主导作用应力。为从长期沉积动力演变过程的角度 ,探讨渤、黄、东海陆架底质形成分布的有关成因问题 ,利用数值模拟手段 ,再现了末次盛冰期以来 6个时期渤、黄、东海陆架潮流作用下海底的冲淤格局及底质分布。结果表明 ,扬子浅滩南侧东海外陆架的砂质沉积基本上是自 - 80 m海面以来形成的。扬子浅滩形成于 -5 2 m海面之后 ,至 - 3 0 m海面时已有一定规模 ,全新世最大海侵之后 ,逐渐形成现在规模的扬子浅滩。南黄海中部泥自 - 5 2 m海面时就已开始形成 ,- 3 0 m海面时范围很大 ,侵入北黄海 ,全新世最大海侵以来 ,逐渐调整到现在的范围。渤海中央泥、北黄海西部泥、浙闽岸外泥、辽东半岛西侧与北侧的砂质沉积、西朝鲜湾与江华湾中的砂质沉积以及苏北浅滩是自全新世最大海侵以来逐渐形成的。海州湾中砂质沉积形成的盛期在公元 8世纪之后。济洲岛西南泥、南黄海东部泥很可能分别形成于 - 3 0 m海面、- 5 2 m海面以来。全新世渤、黄、东海陆架底质分布...

渤、黄、东海陆架底质的形成分布与末次盛冰期之后的海侵密切相关。末次盛冰期结束、海侵开始以来 ,潮流是渤、黄、东海陆架上的永久性主导作用应力。为从长期沉积动力演变过程的角度 ,探讨渤、黄、东海陆架底质形成分布的有关成因问题 ,利用数值模拟手段 ,再现了末次盛冰期以来 6个时期渤、黄、东海陆架潮流作用下海底的冲淤格局及底质分布。结果表明 ,扬子浅滩南侧东海外陆架的砂质沉积基本上是自 - 80 m海面以来形成的。扬子浅滩形成于 -5 2 m海面之后 ,至 - 3 0 m海面时已有一定规模 ,全新世最大海侵之后 ,逐渐形成现在规模的扬子浅滩。南黄海中部泥自 - 5 2 m海面时就已开始形成 ,- 3 0 m海面时范围很大 ,侵入北黄海 ,全新世最大海侵以来 ,逐渐调整到现在的范围。渤海中央泥、北黄海西部泥、浙闽岸外泥、辽东半岛西侧与北侧的砂质沉积、西朝鲜湾与江华湾中的砂质沉积以及苏北浅滩是自全新世最大海侵以来逐渐形成的。海州湾中砂质沉积形成的盛期在公元 8世纪之后。济洲岛西南泥、南黄海东部泥很可能分别形成于 - 3 0 m海面、- 5 2 m海面以来。全新世渤、黄、东海陆架底质分布的演变过程大致分为 2个阶段 :全新世最大海侵之前为渤、黄、东海陆架底质分布宏观格局的形成阶段 ;全新世最大海侵至今为渤?

Combining high resolution geophysical and sedimentological data obtained from several special investigations during 1980~2000 with analyses of hydrodynamic environments, this paper studied the cause of formation, pattern, movement and age of stratum of the sandy bedforms on the Yangtze Shoal in the East China Sea. There are two types, megaripples and sand waves, which are widely developed in the Yangtze shoal. The megaripples can be divided into three types, iestraight-crested, branch-crested and chequer-crested...

Combining high resolution geophysical and sedimentological data obtained from several special investigations during 1980~2000 with analyses of hydrodynamic environments, this paper studied the cause of formation, pattern, movement and age of stratum of the sandy bedforms on the Yangtze Shoal in the East China Sea. There are two types, megaripples and sand waves, which are widely developed in the Yangtze shoal. The megaripples can be divided into three types, iestraight-crested, branch-crested and chequer-crested megaripples. Flat and wide topography, affluent medium to fine sand and strong tide currents and currents induced by storm waves are the advantageous environmental conditions for the development of megaripples and sand waves. Analyses of coring samples and C 14 dating suggest that the sand layers which could have developed into megaripples and sand waves were deposited after the transgression during 10-11kaB.P. Sandy materials were deposited continually during the middle and late Holocene. It is also suggested that the sandy bedforms are corresponding to the hydrodynamic environments in the area, and are in a developing and movable situation.

根据 198 0至 2 0 0 0年间数次专项调查获得的高分辨率地球物理、沉积学等资料 ,并结合水动力环境的分析 ,探讨了东海扬子浅滩砂质底形的成因、形态特征、活动性以及发育的地层年代。研究表明 ,扬子浅滩砂质海底广泛发育沙波地貌 ,按其发育规模可以分为沙波和大型波痕 2类 ,大型波痕按其形态又可分为直线形、弯曲形和格子形 3种。平坦宽阔的地形、丰富的中细砂物源以及较强的潮流和风暴浪流是沙波地貌发育的有利环境条件。柱状岩芯分析和年代测定表明 ,发育沙波地貌的物质的沉积始于冰消期晚期 ,即 10~ 11KaB .P ,全新世中、晚期该区继续接受砂质沉积。扬子浅滩发育的沙波地貌与现今的动力环境相适应 ,仍处于发育和运移状态。

 
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