沉积
- 与 沉积 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In application, the first coarse seismic facies classification effectively identified the channel, erevasse-splay, natural levee, alluvial flat and other subfacies etc, and the second fine reclassification aimed to the classified channel further identified the lateral bar, mid-channel bar, main channel sand body and other microfacies of a fluvial channel.
通过实际应用指出,初次的相对较粗的地震相分类研究可以有效地区分出了河道、决口扇、天然堤、河漫滩等沉积亚相,而针对刻画出的河道的再次地震相分类研究则可以有效地区分出了边滩、心滩和主河道砂体等沉积微相,并初步证实了地震相再分类研究在客观刻画地质体细节方面的优势。
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Salt rock sequence is characterized by salt rack and salt rock interbedded with mudstones of deep lake.
识别出三种类型的沉积体系:深湖半深湖-盐湖-浊积扇、三角洲前缘-前三角洲、洪水-漫湖,并且在层序格架内分析了各旋回的沉积体系特征以及砂体发育情况。
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The Zircaloy substrates were prepared with different pretreatment, then Cr films with the thickness of 0.5μm l.0μm 2.0μm 3.1 μrn and Cr/Nb Nb/Cr binary films were deposited with the same deposition parameters.
锆合金板基体经过不同的预处理后,采用直流磁控溅射方法,在相同的沉积参数下在其表面沉积了0.5μm、1.0μm、2.0μm、3.1μm厚度不等的纯cr薄膜以及Cr和铌的复合薄膜。
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Of the five stages deformation, the exact ages of the (2) and (3) were determined by 40Ar/39Ar method as 290 and 259 Ma respectively.2. New results on the metamorphic belts and associated metamorphism of the Xiaopu metamorphic rocksBased on detailed microtextural observations and occurrence of typical metamorphic minerals, five metamorphic belts in the Xiaopu metamorphic rocks are identified. From the north to the south, they are biotite belt, garnet belt, staurolite belt, andalusite belt, and sillimanite belt. I suggested that the metamorphic belts occurred in the Xiaopu area belongs to the high temperature/low pressure series, may have resulted from the later Permian crust extension at ca. 290 Ma.3. I suggest that there may have been a Carboniferous backarc basin along the southern slope of the Harlik Mountain.Detrital Zircon SHRIMP U-Pb dating indicated that the sedimentary age of the Julideneng formation lithic sandstone must be later than late Devonian, most likely is Carboniferous rather than previously thought Precambrian. Analyses on its geologic setting, location of provenance, and sedimentary environment suggest the Carboniferous strata may form in a lagged backarc basin bounded by backarc uplifts.5. Reconstruction of the post-Paleozoic tectonic evolution history of the Harlik MountainThe tectonic evolution of Harlik mountains since the Paleozoic were reconstructed as followings:(1) arc-affinity magmative activities occurred during the middle-Ordovician to early-Silurian;(2) the middle-Silurian to late-Devonian was a back-arc uplift stage;(3) back-arc extension featured the Carboniferous period;(4) post-collisional extension and/then compression during Permian;(5) at the Mesozoic, differential uplift developed; and (6) the late Cenozoic is the intra-continental re-orogen stage.6. Primary estimation of the crust shortening is madeThe folded pre-Mesozoic strata were used to estimate crust shortening along the Harliknanshankou-Koumenzi, Shichengzi-Baishitou, and Qincheng-Xiaopu sections. Their shortening ratios are 16.2%, 19.8%, and 20.1% respectively corresponding crust shortening are 4.3, 9, and 11.3 km.
根据Ar-Ar热年代学研究,精确测定了早二叠世伸展变形和晚二叠世挤压变形的峰期时代分别为290Ma和259Ma.2、提出了关于哈尔里克山南麓小铺一带变质带和变质作用的新认识根据显微观察资料和特征变质矿物的出现,把小铺一带的变质岩由SW向NE方向依次划分为黑云母带、石榴石带、十字石带、红柱石带和矽线石带等变质带;初步确定该区的变质作用属于中温-低压型,变质作用发生的时代为290Ma左右,是该区早二叠世地壳伸展的产物。3、首次提出哈尔里克山南麓在石炭纪可能发育弧后盆地的新观点根据哈尔里克山南麓原&居里得能组&岩屑砂岩的碎屑锆石SHRIMP U-Pb定年,确认这套地层的沉积不早于晚泥盆世,很可能是石炭纪,而不是前人所说的前寒武纪;结合对其区域地质背景、源区位置和沉积环境分析,推测该区石炭纪可能为滞后弧后盆地和弧后隆起区构造背景。4、进一步证明哈尔里克山不发育与岛弧演化相关的泥盆纪岩浆活动根据对代表性闪长岩和花岗岩的锆石SHRIMP年代学研究获得的新资料,结合该区已有相关资料的综合研究,确定哈尔里克山岩浆岩分别形成于奥陶纪-志留纪和石炭纪晚期-二叠纪,不存在泥盆纪的岩浆岩,进而认为该区泥盆纪不属于岛弧环境。5、重建了哈尔里克山古生代以来的地质演化过程根据区域资料以及本次研究所获得的资料,把哈尔里克山古生代以来的构造演化划分中奥陶世-早志留世为岛弧、中志留世-晚泥盆世为弧后区、石炭纪弧后伸展、二叠纪为后碰撞伸展与挤压、中生代差异隆升和晚新生代陆内再造山过程等构造阶段。6、初步估算了哈尔里克山地壳缩短率和缩短量根据前中生代地层褶皱估算的哈尔里克山南山口-口门子、石城子-白石头和沁城-小铺三条剖面的地壳缩短率分别为16.2%、19.8%和20.1%,相应的地壳缩短量分别为4.3km、9km和11.3km。
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The Ordos Basin is a large-scale sedimentary basin in Northwest China. From bottom up, the hydrostratigraphic units in the basin are pre-Cambrian metamorphic rocks, lower-Paleozoic carbonate rocks, upper-Paleozoic to Mesozoic clastic rocks and Cenozoic deposits.
鄂尔多斯盆地是我国西北地区的大型构造沉积盆地,以前寒武系变质岩为基底,依次沉积了下古生界碳酸盐岩、上古生界一中生界碎屑岩和各种成因的新生界,总厚度达6000m。
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Volcanic rocks shaped by a volcanic movement tend to occur vugs and fissures as spaces for hydrocarbon storage during rapid magma condensation;the volcanic debris deposits are characterized by expanding and dispersing in water,being either favorable to packing pores,and becoming good sealing caps,or to preservation of oil/ga...
火山活动形成的火山岩,在岩浆迅速冷凝过程中会产生孔洞和缝隙,成为容留油气的空间;火山活动形成的火山灰沉积,具有遇水膨胀和分散的特点,地层孔隙被其它充填后而成为良好的封存盖层并能抗御新构造运动的破坏而有利于油气田的保存;火山活动提供1020~1200℃的岩浆和300~400℃的热液流体携带的热能,为油气运移提供热动力条件,促进油气运移;火山活动在沉积盆地内形成的火山岩体与侵入岩体,为含油气盆地增加了一种非构造圈闭———火山岩岩性圈闭。
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From late 1940's to 50's, turbidite were widely distinguished in the exploitation of oil and gases as turbidity deposits, and were regarded to be top importance of oil and gases development, warming up turbidity deposits rush all over the world.
从40年代末开始到50年代,在油气勘探中作为浊流沉积的浊积岩被大量辩识出来,并确认了浊积岩在油气开发中具有举足轻重的作用,从而在全球掀起了一股浊流沉积热。
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The oil storage evaluation of the deep-water tractive current deposits is better than turbidite rock, therefore it has extremely great capability of accumulation of hydrocarbon.
深水牵引流沉积的储集性能优于浊流沉积,故具有非常重要的含油气潜能。
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According to the difference of the genetic mechanism, it is further divided into the slump turbidite fan and the deep-water turbidite fan for they have some differentces in seismic profile, depositional character and space distribution.
根据其成因机制上的差异,又可进一步分为滑塌浊积扇和深水浊积扇等两种沉积类型,二者在地震反射特征、沉积特征及空间展布上均有一定的差别。
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The tractive current deposition has been a new field of sedimentological research since the 60's of 20th century.
深水牵引流沉积是20世纪60年代以来沉积学迅速发展的一个新的研究领域。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。