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internal-tide deposit
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  相似匹配句对
     Current Situation and Advance of Internal Wave and Internal Tide Deposit Study
     内波、内潮汐沉积研究现状与进展
短句来源
     INTERNAL STRESS OF DEPOSIT AND TESTING METHOD
     镀层内应力和测试技术
短句来源
     FORMS OF INTERNAL WAVE AND INTERNAL TIDE SEDIMENTATION
     内波与内潮汐沉积作用的方式
短句来源
     Internal-tide Deposits of the Late Ordovician in Tonglu,Zhejiang
     浙江桐庐晚奥陶世内潮汐沉积
短句来源
     A NUMERICAL STUDY ON DYNAMIC MECHANISM OF INTERNAL TIDE
     内潮动力机制的数值研究
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Fincastle Conglomerate which was considered as deposits in shallow water in the pastis mainly gravity flow deposits and associated sediments ia deep water submarine chan-nels.Five gravity flow facies have been recognized:1.pebbly mudstone facies;2.matrix-rich conglomerate facies;3.matrix-poor conglomerate facies;4.massive sandstone facies;5.graded sandstone facies.Among them 1 and 2 are debris flow deposits;3 and 4 belongto grain flow deposits;and 5 is turbidite including high density and low density currentdeposits.The...

Fincastle Conglomerate which was considered as deposits in shallow water in the pastis mainly gravity flow deposits and associated sediments ia deep water submarine chan-nels.Five gravity flow facies have been recognized:1.pebbly mudstone facies;2.matrix-rich conglomerate facies;3.matrix-poor conglomerate facies;4.massive sandstone facies;5.graded sandstone facies.Among them 1 and 2 are debris flow deposits;3 and 4 belongto grain flow deposits;and 5 is turbidite including high density and low density currentdeposits.The associated facies comprise:6.dark shale and mudrock facies:suspension de-posit;7.contorted bed facies:slumping deposit;8.bidirectional cross-laminated sandstonefacies:internal-tide deposit;9.unidirectional cross-bedded and cross-laminated sandstonefacies:deposit of internal tide with superposing internal wave.The nine facies mentionedabove constitute five facies assemblages that show regular patterns.To sum up,the Fin-castle Conglomerate shows a clear upward-fining sequence,reflecting a process of that thesea level continued to rise and the source area was farther and farther to the sedimentarysite.

过去视为浅水沉积的“芬卡苏砾岩”,实为深水海底水道中的重力流及其伴生沉积。识别出5种重力流沉积相:(1)含砾泥岩相,(2)富基质砾岩相,(3)贫基质砾岩相,(4)块状砂岩相,(5)递交砂岩相。其中(1)和(2)为碎屑流沉积,(3)和(4)属颗粒流沉积,(5)为浊积岩,包括高密度和低密度浊流沉积。与其伴生的相有:(6)暗色泥质岩相:悬浮沉积,(7)扭曲层相:滑塌沉积,(8)双向交错纹理砂岩相:内潮汐沉积,(9)单向交错层-交错纹理砂岩相:叠加有内波作用的内潮汐沉积。上述九种相构成了5个有规律的组合,反映海平面持续上升,物源区不断远离沉积区的过程。

Abyssal allochthonous deposits consisting of density current, contour current, and internal tide and wave deposits are relatively coarser sediments transported and accumulated by density and contour current in abyssal environments. Some important progresses in studying systematically density and contour current deposits are made by the Chinese scholares, catching up with the world'S advanced levels.It is first time in the world that internal tide deposits from ancient strata are identified...

Abyssal allochthonous deposits consisting of density current, contour current, and internal tide and wave deposits are relatively coarser sediments transported and accumulated by density and contour current in abyssal environments. Some important progresses in studying systematically density and contour current deposits are made by the Chinese scholares, catching up with the world'S advanced levels.It is first time in the world that internal tide deposits from ancient strata are identified in our country. Their researches reported in an oversea authoritative academic journal are taken seriously by international sedimentological circles.It is shown that the our study in this field is in the lead of the world.

深水异地沉积是指在深水环境中经重力流或牵引流搬运、改造、沉积而形成的相对粗粒的沉积物,是深水重力流、等深流、内潮汐和内波沉积的总称。在重力流沉积和等深流沉积研究中,我国由向国外学习,到逐步达到国际先进水平;而在对内波、内潮汐沉积的研究中,我国学者在国际上首次鉴别出了古代地层中内潮汐沉积,并对其进行了系统研究,研究成果在国外权威学术刊物上发表后受到国际沉积学界的重视,这标志着我国在这一领域的研究处于世界领先地位。

By comprehensive study of cores and various data, internal-tide deposits are recognized in the middle-upper Ordovician of TZ30 well in the Tarim basin, which is the second example found in China after finding in the Tonglu area, Zhejiangprovince. The middle-upper Ordovician in TZ30 well is 627 m thick and mainly composed of dark-gray graptolite-bearing shales interbedding with three intervals of sandy elastic rocks and grainstones. .Most of relatively coarser grains are a miXture of terrigenous debris...

By comprehensive study of cores and various data, internal-tide deposits are recognized in the middle-upper Ordovician of TZ30 well in the Tarim basin, which is the second example found in China after finding in the Tonglu area, Zhejiangprovince. The middle-upper Ordovician in TZ30 well is 627 m thick and mainly composed of dark-gray graptolite-bearing shales interbedding with three intervals of sandy elastic rocks and grainstones. .Most of relatively coarser grains are a miXture of terrigenous debris and carbonate grains which can constitute cold- and bioclast-bearing sandstone and sandy oolitic limestone etc. The sandstones and sandy oolitic limestones can form beds (5-50cmthick) alone in which epsilon cross beddings or parallel beddings are developed, but more commonly, form thin alternate beds with dark-gray shales in which flaser, wavy andlenticular beddings and bidirectional cross laminations are well-developed. The thinalternate beds reflect the alternate deposition of bed load and suspension load caused by periodic change of current speed; but the well-development of bidirectional cross laminations more directly displays the frequent reversal of flow direction controlled probably by tidal action. So the thin alternate beds should be produced by internal-tidedeposition on a flat, deep-water slope. There may be some small-scale furrows in the flat slope The sandy oolitic limestones with epsilon cross beddings which can form beds alone may be resulted from lateral migration and aggradation of these small-scale furrows.

通过岩心观察和其他资料的综合研究,在塔里木盆地TZ30井中上奥陶统中鉴别出了内潮汐沉积。TZ30井的中上奥陶统厚627m,主要由深灰色含笔石页岩组成,其中夹有3个发育砂级碎屑岩和颗粒石灰岩的层段。这些相对较粗的骨架颗粒多为陆源碎屑和碳酸盐颗粒的混合,其组成的岩石包括含鲕粒和生物屑的砂岩、砂质鲕粒灰岩等。砂岩和砂质鲕粒灰岩可以单独成层(厚5~50cm),但更常见它们与深灰色页岩组合而成频繁薄互层。薄互层中发育脉状、波状和透镜状层理,并普遍发育双向交错纹理;单独成层者则具侧积交错层或平行层理。这些薄互层被解释为平坦的深水斜坡上内潮汐沉积的产物;单独成层者则可能为小型沟渠侧向迁移、加积的结果。

 
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