| 1. | Trilobites were rapidly evolving forms and are of widespread use in biostratigraphic studies . 三叶虫是进化迅速的种型,并广泛用在生物地层学的研究上。 |
| 2. | Stratigraphic significance commonly is apparent only where seismic data are tied with well data . 通常,只有在地震资料与钻井资料相结合的地方,地层学的意义才是明显的。 |
| 3. | Most geology professors concerned with stratigraphic research direct their attention to outcrop stratigraphy rather than to subsurface stratigraphy . 从事地层学的多数地质学教授的注意力主要放在露头地层学而不放在地下地层学上。 |
| 4. | Current situation of sequence stratigraphy and discussion on related theoretic problems 层序地层学的研究状况及有关理论问题探讨 |
| 5. | The author think the y1 sequence is a whole third - order sequence ( named sq - 14 ) 从层序地层学的观点来看,这是一个完整的三级层序(定名为层序) 。 |
| 6. | The geographical ( and , where relevant , stratigraphical ) place of capture , collection , or observation of the name - bearing type of a nominal species or subspecies [ art . 76 . 1 , recommendation 76a ] 采获,采集或观察一个命名种或亚种的具名模式的地理学(以及与该处相关的,地层学的)地点[第76条1 ,建议76a ] 。 |
| 7. | One of the main contents of continental sequence stratigraphy is dividing the three - order sequence into " lst , tst and hst " , representing three stages of a lake basin deposition 摘要陆相层序地层学的一个主要内容是将三级层序划分为“低水位体系域、湖进体系域和高水位体系域”等三个水位域沉积体系,分别代表着一个湖盆沉积的三个阶段。 |
| 8. | The maximum flood surface is the turn - point of the rising and falling of the baselevel . once these two surfaces are defined , a intergrated sequence can be classificated . the principle of this area ' s sequence classfication is using seismic data to classificate the third - sequences 2 、首次将高分辨率层序地层学的基本理论应用于研究区,在分析岩芯、测井资料及三维地震资料基础上建立了层序地层等时格架。 |
| 9. | The yanchang formation is divided , for the first time , into six third - order sequences , each with an average time duration of about 4 . 5 ma . the single sequence is composed of deltaic and lacustrine sandstones , siltstones and mudstones . the subaerial and subaqueous distributary channel and channel - mouth bar sandstone reservoirs are well developed mainly in the lowstand and highland systems tracts 论文在富县探区首次应用陆相层序地层学的观点和方法,把延长组划分为6个三级层序,平均时限4 . 5ma ,各层序由三角洲与湖泊相砂、泥岩沉积组成,主要在低位体系域和高位体系域发育水下(上)分流河道和河口砂坝砂岩储层 |
| 10. | On the basis of extensive field investigations and laboratory analyses on the carboniferous strata and fossils in the west qinling . to the carboniferous of lixian , there has systematically been studied in the lithostratigraphy and biostratigraphy . at the same time , a diverse of fossils form this area have detailedly been described and discussed 在对西秦岭石炭纪地层和古生物化石资料进行广泛的野外收集和室内分析处理的基础上,对研究区石炭系进行了系统的岩石地层和生物地层学的划分和对比;对所获古生物化石进行了系统的描述和归属讨论,形成了一套内容丰富的西秦岭石炭纪地层古生物研究新资料。 |