c h a p t e r11— t h e m e s o z o i c e r a（c h a p t e r11 - t h e m e s o z o i c e r a）.doc

下载文档 降价啦

9
0
约1.74万字
约 9页
2017-01-19 发布于湖南
举报
版权申诉
保障服务

c h a p t e r11— t h e m e s o z o i c e r a（c h a p t e r11 - t h e m e s o z o i c e r a）.doc

1、本文档共9页，可阅读全部内容。
2、原创力文档（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

Chapter 15—Cenozoic Events CHAPTER OVERVIEW The Cenozoic Era is divided by most geologists into two periods: the Paleogene and the Neogene. This “newer” approach represents a move to an equal division of the epochs and also a more natural way of dividing Cenozoic rocks in Europe. The Cenozoic, although covering only the last 66 million years, represents major worldwide changes. One such change occurred when the North Atlantic rift extended to the north, separating Greenland from Scandinavia and thereby destroying the land connection between Europe and North America. During the late Eocene epoch, Australia separated from Antarctica and then began its journey to its present location. This is considered the only major continental breakup during the Cenozoic; however, it appears to have affected climates around the world. The stratigraphy of the Cenozoic of North America is explored with some of the more noteworthy exposures: the Gulf Coast, Rocky Mountains, High Plains, Basin and Range, Colorado Plateau, Columbia Plateau and Cascades, Sierra Nevada, and California are discussed. The sedimentation and deformation of the Cenozoic outside North America is also discussed in order to complete this phase of Cenozoic history. Pleistocene Glaciation is a focal point in this chapter which highlights the Glacial and Interglacial stages in North America and Europe as well as discussing variations in climatic conditions. LEARNING OBJECTIVES By reading and completing information within this chapter, you should gain an understanding of the following concepts: Sketch and label the Paleogene and Neogene Periods and the epochs within each. Discuss the tectonic-climate connection. Locate on a map the major mountain systems that were formed by the northward moving African block as it collided with the underside of Europe. Explain the origin of the following physiographic features of North America: Rocky Mountains/High Plains, Basin and Range, Colorado Plateau, Colum