查询词典 facies map
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In the north area, there are mainly carbonate rocks and shallow sea facies fossil, such as Trilobites, cephalopodes, Brachiopodes and Anthozoans in fossil feature. In the south area, there are mainly flysch and deep sea facies fossil, such as Graptolites in fossil feature.
北区岩性为碳酸盐岩建造,生物以三叶虫、头足类、腕足类及珊瑚等浅海生物为主;南区岩性为复理石建造,生物以深海相笔石为主。
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Characteristics of these two kinds of spinels not only indicate that the whole terrain underwent granulite facies metamorphism but also provide direct mineralogical evidence for the argument that Yushugou ophiolite suite of granulite facies lies in an environment of oceanic basin.
这两类尖晶石的特征一方面说明该地体遭受了麻粒岩相的变质作用改造,另一方面也提供了榆树沟麻粒岩相蛇绿岩套属洋盆构造环境的直接矿物学证据。
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The results show that the formation of granulite have two stages: early granulite-facies rocks formed under the conditions of 0.88~1.1GPa and 880~890℃; the later amphibole-facies retrogressive metamorphism paragenesis formed under the conditions of 0.30~0.37GPa and 620~640℃, belonging to a typical low-pressure type.
结果表明:麻粒岩形成经过两个阶段,麻粒岩形成于0.88~1.17GPa,880~890℃条件下,角闪石-斜长石退变组合形成温度620~640℃,压力0.30~0.37GPa。
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The SDB eclogites, on the other hand, were strongly overprinted by a high-pressure granulite-facies metamorphism under conditions of p=1.9~2.0 GPa and T=873~948℃, followed by temperature and pressure decrease to the amphibolite-facies. The process of temperature increase with decreasing pressure from UHP eclogite to high-pressure granulite suggests that the SDB eclogites exhumed at low speed and underwent strong thermal relaxation at a level of crust-mantle transition or thickened lower crust.
都兰南带榴辉岩折返过程中经历了高压麻粒岩相变质的改造,高压麻粒岩阶段的p-T条件为p=1.9~2.0 GPa,T=873~948℃,并进一步经历了角闪岩相退化变质,说明都兰南带榴辉岩折返速率较慢,发生了壳幔过渡带层次的强烈热松弛。
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They as a whole reached high amphibolite facies to granulite facies with characteristic equilibrium assemblage of peak stage Sil+Grt+Bt±Crd+Kfs+Pl+Qtz.
荆山群变质岩系经历了三幕变形、六幕变质重结晶作用,峰期形成Sil+Grt+Bt±Crd+Kfs+Pl+Qtz特征平衡组合,变质程度达高角闪岩相-麻粒岩相。
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Firstly, based on the observation and description of a large number of drilling cores in macroscopic and microcosmic aspects, facies marks are summarised, which supplied from the characteristics of lithology, distribution of grain size, sedimentary structvure, ichnology and logging facies.
首先,在对大量岩心宏观和微观特征描述的基础上,从岩石学特征、粒度分布特征、沉积构造特征、遗迹化石特征以及测井相特征等五方面,总结出研究区的各类沉积相的相标志,为沉积相的识别和划分提供了有力的依据。
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Secondly the sedimentary characteristics of Caledonian strata in Hunan, Guangxi, Jiangxi suggested that there is not discontinuity of facies on both sides of Jiangshan-Shaoxing Fault Zone, which is considered to be Caledonian suture zone of Yangtze Block and Cathaysia Block, but the interdigitation, continuity of facies or assuming the united paleogeographic unit.
得出该结论的证据主要有两方面:①湘桂赣地区加里东期花岗岩体呈面状展布,且地球化学测试结果表明为壳源S型花岗岩,这些特征与洋壳消亡形成的花岗岩体无论在分布特征还是在地球化学特征上都有显著的差别;②湘桂赣地区加里东期地层的沉积古地理特征研究表明在目前多数人公认的扬子与华夏的缝合带,即江绍断裂带两侧的加里东期沉积物不存在两大古地理体系的截然跳相现象,而是表现为两侧沉积相带的指状交叉、过渡或呈现为完全相同、统一的岩相古地理单元。
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Three kinds of sedimentary facies were identified, namely, the terrestrial river, lake, and the transitional facies of marine-terrestrial lagune base on the characteristic of the lithology, the sedimentary structure, and the geochemistry characters.
根据岩石学、沉积构造和地球化学特征,识别出三类沉积相:即陆相河流、湖泊和海陆过渡相的有障壁滨岸。
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The Lower/Upper Cretaceous boundary in Songliao Basin is,therefore,between the Quantou and Denglouku formations,instead of between the Quantou and Qingshankou formations.2.The dark mudstones and shales in the Member 1 of Qingshankou Formation are of high organic carbon and low diasteranes contents.Organic geochemical characters are illustrated by biomarkers of 28,30-bisnorhopane and gammacerane,and positive excursion of kerogen isotopes.It is suggested that the dark mudstones and shales in the Member 1 of Qingshankou Formation are the products of lake anoxic period.It corresponds to the oceanic anoxic event at Cenomanian-Turonian boundary in Cretaceous.3.Based on the study of biostratigraphy,chronostratigraphy,magnetostratigraphy and event stratigraphy,a correlation of the lacustrine sequence to marine standard has been proposed,i.e.,the Quantou Formation corresponds to Cenomanian stage,Qingshankou Formation correlates to Later Cenomanian-Early Turonian,Yaojia Formation to Later Turonian-Coniacian,Nenjiang Formation to Santonian-Campanian.Sifangtai and Minshui Formations to Maastrichtian. 4.Analysis of lithology,lithofacies and microfossils of Cretaceous in Songliao Basin, shows that shore and shallow lake facies yield the most abundant microfossil groups,and the predelta and deltaic distributary plain facies rich in fossils as well.In the shore and shallow lake areas during the high level periods(such as Qingshankou and Nenjiang sedimentary periods),the lacustrine biota are of high diversity and high abundance.
因此,松辽盆地上、下白垩统的界线应在泉头组的底界,即泉头组与登娄库组之间,而不是泉头组的顶界。2、青山口组一段黑色泥岩、页岩具有有机碳含量高、重排甾烷含量低,生物标志物出现28,30—双降藿烷和伽马蜡烷,干酷根碳同位素具有正向偏移等有机地球化学特征,表征为青山口组一段黑色页岩、油页岩是古湖泊缺氧事件的产物,它对应于白垩纪古海洋Cenomanian—Turonian期界线附近缺氧事件,二者具同步性。3、通过生物地层学、年代地层学、磁性地层学和事件地层学研究,认为泉头阶大体相当于Cenomanian阶,青山口阶相当于晚Cenomanian—早Turonian阶,姚家阶对应于晚Turonian—Coniacian阶,嫩江阶对应于Santonian—Campanian阶,四方台阶和明水阶相当于Maastrichtian阶。4、通过对松辽盆地上白垩统的岩性、岩相及微体化石分析,认为滨浅湖相是微体生物群最为发育的相带,其次为三角洲前缘相和三角洲分流平原相。
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Drilling,seismic,logging and testing data have indicated that,Carboniferous and Permian in the east of Jiyang and Linqing in the Bohaiwan Basin are mainly composed of a set of neritic carbonate platform facies limestone as well as barrier-lagoon,tidal flat,paludal and deltaic facies terrigenous clastic rock and coal bed.
钻井、地震、测井及测试资料综合研究认为:渤海湾盆地济阳—临清东部地区石炭—二叠系主要发育一套浅海碳酸盐岩台地相灰岩、障壁—潟湖、潮坪、沼泽及三角洲相陆源碎屑岩和煤层。
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- 推荐网络例句
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The second is to cut a mere 100 calories from your diet , which is the equivalent of a tablespoon of butter.
第二个就是从你的饮食中减少一百卡路里,只是相当于一大汤匙的黄油。
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This is where the Rorschach test comes in.
现在,罗氏测试就出现了。
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I am thankful for you and what you bring to my life .
我要感谢你和你给我的人生带来的欢乐。