查询词典 biostratigraphy

The biostratigraphy of this paper is mainly achieved at these two kinds of fossils. The abundance and the diversity of plant fossils are very different across the TPTB stratigraphic set in western Guizhou and eastern Yunnan.

植物化石方面，在研究区两剖面上的界线层组上、下，植物化石的丰度和分异度均存在极大的差异，晚二叠世植物大化石的属种多，化石含量也十分丰富，早三叠世属种单调（或无完整的植物大化石出现），化石含量也极少。

Professor Xing is one of the few earliest specialists in the study of Precambrian microplants in the world and he has been long devoted to researches on Precambrian microplants and biostratigraphy.

邢裕盛教授长期从事前寒武纪微古植物及生物地层研究，为国际上最早研究前寒武纪微古植物的少数专家之一。

This paper presents an integrated and comprehensive Lower Triassic sequence of Chaohu to serve for a standard regional stratigraphical sequence, based upon up to date achievements in the studies of lithostratigraphy, biostratigraphy and carbon isotope stratigraphy at three sections in the area.

根据巢湖地区3条代表性下三迭统剖面的岩石地层、生物地层和碳同位素地层的最新研究成果归纳出本区早三迭世综合地层序列，作为区域地层对比研究的标准。

The main fruits of study are as follows:(1) A complete stratigraphic framework of Middle-Upper Jurassic series is set up through systematic stratigraphic study of Middle-Upper Jurassic by the analysis of lithostratigraphy , biostratigraphy and chronostratigraphy on five groups of Middle-Upper Jurassic series in the studied area.

主要成果表现在以下五个方面：(1)通过对研究区中—上侏罗统五个组进行岩石地层、生物地层和年代地层分析，系统进行中—上侏罗统地层学研究，建立了研究区中—上侏罗统完整的地层格架。

A detailed sequence stratigraphy of Tertiary in the East China Sea Basin has been researched based on the previous work by way of sedimentology, biostratigraphy, log stratigraphy and seismic stratigraphy in this paper.

在前人研究成果基础上，运用沉积学、生物地层学、测井地层学及地震地层学，对东海盆地第三系进行了较系统的层序地层学研究，结果表明东海盆地第三系可划分为5个二级层序和12个三级层序以及若干次一级层序。

This paper probed into the sea-level changes from the latest Ordovician to the earliest Silurian and thesubdivision of the Ordovician-Silurian boundary based on the study of biostratigraphy, chemical stratigraphyand sequence stratigraphy.

本文通过生物地层、化学地层和层序地层的研究，对晚奥陶世晚期至志留纪初期的海平面变化以及奥陶／志留系界线的划分进行了探讨。

By summing up the cyclicity, rock association and occurrence of volcanic rocks with their overlying and underlying contact relations and forming environment, and concerning the research results of isotope chronology and biostratigraphy, the Yixian formation of the working area may be subdivided into four members.

综合火山岩的旋回性特徵，岩石组合、岩石产出特徵，不同岩石组合的上、下接触关系和岩石形成环境的分析结果，结合同位素年代学及生物地层学的研究成果，区内义县组被划分成了4个岩性段。

Based on studies on sequeence stratigraphy, event stratigraphy, biostratigraphy and lithos-tratigraphy, it is concluded that the Sailinhuodong Group is a part of the Bayan Obo Group .

据层序地层、事件地层、生物地层和岩石地层研究。腮林忽洞群是白云鄂博群的一部分。

In his more than half a century' s scientific and educational career, Professor Yang made significant contributions to Chinese geology and paleontology, especially in the fields of fossil brachiopods, Carboniferous biostratigraphy, paleobio-geography, and paleoecology.

杨式溥对中国西北和西南地区石炭纪的腕足动物化石的研究为中国石炭纪地层的内部界线划分、对比、化石组合、地理区系及沉积类型提供了重要证据。

Great paleoenvironment change of the basins that located in northeast region of Tibet plateau is closely related to the second uplift of Tibet plateau and the formation of Asia monsoon. This conclusion was found by the analysis and correlation of magnetstratigraphy、 biostratigraphy、lithohorizon in xining basin、 lanzhou basin and linxia basin.

西宁盆地、兰州盆地、临夏盆地的磁性地层、生物地层、岩石地层的对比表明位于青藏高原东北部的周缘盆地在青藏高原的第二次隆升时被迫的进行了相应的应力调整和变形，并在刚成形的亚洲季风共同作用下，导致自身古环境发生重大变迁。

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