PPT-The Cenozoic Era Geology 103

Following the Mesozoic extinctions marine invertebrates diversified giving rise to the presentday familiar marine fauna Overall we can think of the Cenozoic Era as a time during which Earths flora and . Astronaut Geology Training We began the geology training course with 29 astronauts John Glenn attended some of the early classes but was not formally in cluded since he had other obligations and was not expected Important Terminology. The Geologic Column. Eonothem. Erathems. Systems. Eonothem. Erathems. Systems. Eon. Era. Periods. Chronostratigraphic. Geochronologic. Two Sets of Terminology. Precambrian. Phanerozoic. Triassic 250-205. Pangaea. Jurassic 205-140. Laurasia and Gondwana. Cretaceous 140-65. Formation of present day continents. Hot and dry. Polar regions moist . and temperate . Warm and dry. No ice caps at poles. Chapter 21.1, 22, 23, 24. Why do we care?. By studying the characteristics of rocks and fossils within them, geologists can interpret. The environment the rocks were deposited in. Reconstruct Earth’s history. I. t . S. haped the World. b. y Josh . I. rving. What is Geology?. Geology is the study of rocks, gems, and minerals and the study of the structure of these materials. An important part is how they were formed and how they change over time.. Justin P. Jones. The World is a canvas. A geologist examines the many stories told by the Earth’s rocks and minerals. . They notice the subtle differences between different rock formations and strive to paint the complete picture of Earth’s history.. 1. HISTORICAL GEOLOGY. LECTURE 1. STRATIGRAPHY. Stratigraphy. :. Many past geologic events have resulted in . strata. or . layers. of sediment which have formed a stacked vertical sequence of . sedimentary rocks. Triassic 250-205. Pangaea. Jurassic 205-140. Laurasia and Gondwana. Cretaceous 140-65. Formation of present day continents. Hot and dry. Polar regions moist . and temperate . Warm and dry. No ice caps at poles. A) is an essential part of the gradualist model of evolution. B) refers to morphological stasis, not molecular stasis. C) suggests strong directional selection. D) is more likely in . dueterostomes. E) none of the above. Organization of . Ch. 21-24. Ch. 21.1 – Describes the geologic time scale. Ch. 22 – Precambrian Earth. . Section 1: Early Earth. . Section 2: Formation of the Crust and Continents. . Section 3: Formation of the Atmosphere and Oceans. “Civilization exists by geologic consent” -Will Durant. Where are the world’s great cities located and why?. Why are Earliest Humans Here?. East African Rift. Water. Animals. Preservation of fossils. The Geologic Column. Eonothem. Erathems. Systems. Eonothem. Erathems. Systems. Eon. Era. Periods. Chronostratigraphic. Geochronologic. Two Sets of Terminology. Precambrian. Phanerozoic. Eonothem. ___When you started second grade. ___When you were born. ___ When you started kindergarten. ___When you learned to ride a bike.. ___ When you learned to walk.. ___ When you learned to read.. ___ When you lost your first tooth.. A V Zuza CVPage 1of 5 PhDAssistant ProfessorNevada Bureau of Mines and GeologyMackay School of Earth Sciences and EngineeringUniversity of Nevada Renoazuzaunredu775682-8752EDUCATIONPhDUniversity of Ca