PPT-Cenozoic Earth History I

The Cenozoic Era Spans the 655 Ma from the end of the Mesozoic to today There is not agreement in the Earth science community about whether the Cenozoic should be subdivided into Tertiary and Quaternary or into . Canada’s Geologic History. - By carefully analyzing landforms, rocks and fossils. - A fossil of an animal that was around on earth at a particular time in history. Index Fossils. 4, 600, 000, 000 years ago. 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 14 Lesson 3. 248 mya to 65 mya. Dinosaurs roam the Earth. Tremendous plate movement occurs breaking Pangaea up. The Mesozoic Era. Beginning of Mesozoic all land was joined as the Supercontinent Pangaea. Who was James Hutton?. In the late 1700s, James Hutton began to question some of the ideas regarding the Earth.. He found fossils and saw them as evidence of life forms that no longer exist. . Different types of fossilized creatures were found in different layers of rock.. 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. Geological Time Scale. AIM: . How have stratigraphy and radiometric dating been used to construct the geological time scale?. The History of Earth. Earth’s history has been studied through 2 methods:. The geologic time scale divides Earth’s long history into units of time…. Eras. .  . Periods. .  . Epochs. Eras. are divided into . P. eriods. .. Periods. are divided into . Epochs. .. Precambrian. The Cenozoic Era. The Modern World Emerges. Tectonics. Major Concepts. The volcanic null that corresponded with the . Laramide. . Orogeny. starting in the late Cretaceous ended in the late Eocene epoch (~40Ma) with the resumption of arc . Conditions on early Earth made the Origin of Life possible.. Current theory about how life on Earth began.. Earth formed about 4.6 billion years ago.. Earth was too hot and still being bombarded by meteors, any water evaporated.. Following the Mesozoic extinctions, . marine invertebrates diversified . giving . rise to the present-day familiar marine fauna . Overall, we can think of the Cenozoic Era . as a time during which Earth's flora and . Geologic Time and Evolution Earth Has a History Geologic materials record enormous changes. Earth is a complex, evolving system. Physical and biological systems continuously interact. Earth constantly changes and has done so through time. A. V. Zuza – CV Page 1 of 5 , Ph.D. Assistant Professor Nevada Bureau of Mines and Geology Mackay School of Earth Sciences and Engineering University of Nevada, Reno azuza@unr.edu ; ( 775 ) 682 - A V Zuza CVPage 1of 5 PhDAssistant ProfessorNevada Bureau of Mines and GeologyMackay School of Earth Sciencesand EngineeringUniversity of Nevada Renoazuzaunredu 775682-8752EDUCATIONPhDUniversity of Ca 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