地层学

Research of this area was focused on the relation of sedimentary basin stratigraphy and fossil egg succession in the sediments. Studies on pterosaur embryo contained in fossil egg; the first attempt to get DNA from fossil eggs by using molecular biology method are examples of this progress.

这期间的研究更注重于解决盆地地层与蛋化石演化序列间的联系；开展了翼龙化石胚胎学研究；通过分子古生物学分析，尝试了获取古代DNA的方法；河南西峡恐龙蛋化石博物馆的建立，成为展示这一阶段进展的突出标志。

But in China, the research of sequence stratigraphy didn′t fall behind abroad.

目前，层序地层研究也已经成为沉积学及相关学科研究的热点和前沿。

Based on studying in detail of the petrology,contact relation,deformation,metamorphism and so on, the metamorphic granitoids can be recognized and brokenup from metamorphic terrane.

通过详细的岩石学特征、接触关系、形变及变质特征研究，从变质地层中识别和解体出众多的变质花岗岩体。

Much attention is paid to petrologic recognition marks and distribution regulation of volcanic event strata in coal-bearing sequences of Taiyuan formation in the middle of North China.

概要：桑树勋刘焕杰贾玉如摘要研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律。研究结果表明：含煤地层中广泛发育火山事件层。

Seismic sedimentology takes full advantage of the lateral resolution of 3-D seismic data, its key techniques includes the building of sequence stratigraphic framework and generation of stratal slice.

地震沉积学充分利用了三维地震数据的横向分辨力，其关键技术是层序地层框架的建立和地层切片体的生成。

The method of 90°-phase inversion gives stratigraphic meaning to seismic phase,and is used to interpret high frequency sequences;the technology of stratal slicing is a series of slices along the surfaces inserted proportionally between two time-surfaces and this technology is used to study the planar distribution of depositional systems.

国外上世纪80年代开始出现地震沉积学这个名词，但由于地震分辨率和研究手段的限制，没有形成一套系统的理论体系和完整的学科，国内近几年虽然广泛开展利用地震资料进行沉积相、地层岩性识别的研究，但还没有出现有关地震沉积学的系统研究。

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

Their lithologic types are dominated by vitric tuff vitric crystal tuff and medium-fine tuffy sandstone and their genetic types mainly belong to complicated type of the airborne-water-carried and the airborne type.

研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律。研究结果表明：含煤地层中广泛发育火山事件层。火山事件层的岩石类型以玻屑凝灰岩、玻屑晶屑凝灰岩和凝灰质中细粒砂岩为主。

The gemmological characteristics, microtopography and IR spectra of jet samples from coal measure strata in Fushun, Liaoning Province, are studied by using the conventional gemmological methods, XRD, ESEM and FTIR.

以辽宁抚顺地区煤系地层中产出的煤精为研究对象，采用常规的宝石学测试，XRD， ESEM， FTIR等分析方法，研究了样品的宝石学特征、微形貌特征和红外光谱特征。

Palaeogeography of China comes from stratigraphy, historical geology, tectonics, palaeontology, sedimentary petrology, natural geography, Quaternary geology, archaeology, human historical geography, etc.. Thus branch disciplines such as stratigraphic palaeogeography, tectonic palaeogeography, palaeontological palaeogeography, lithofacies palaeogeography, natural geographic palaeogeography, Quaternary palaeogeography, human historical palaeogeography, etc. are originated and developed.

我国古地理学来源於地理学、地史学、大地构造学、古生物学、沈积岩石学、自然地理学、第四纪地质学、考古学、人类历史地理学等，因此就相应地产生和形成了地层古地理学、构造古地理学、生物古地理学、岩相古地理学、自然地理古地理学、第四纪古地理学、人类历史古地理学等分支学科。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失