PPT-Earth History GEOL 2110

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 . Supplementary material to . Aerden, 1991 (J. Struct. Geol.). Aerden 1991 – J. Struct. Geol.. 100m. WOODEN BLOCKS MODEL. Fold interpretation of Brathwaite, 1970. 45. ORE LENS . E. ORE LENS G. ORE LENS . The . Sun. Is HOT!!!. The sun is an . average . star . The heat and light are the result of . Nuclear Reactions . constantly taking place in the sun.. It is in the . center. of our solar system. . Comparison . The Earth is divided into three layers based on the compounds that makeup each layer. They are:. 1. Crust. 2. Mantle. 3. Core. The Crust. The Crust is the :. 1. outer most layer of the Earth.. 2. It is the thinnest layer.. 2. TODAYS . MATERIAL:. Introduction to the Course. The Quaternary . Period. Climatic . and Geologic Processes. Instructor:. Jason Robert Patton . Email: . Jason.Patton@humboldt.edu. . Office:. Founders Hall 22 . The Sun. What physical features do you notice?. How does the Sun compare to the Earth and Moon?. What does the Sun provide for the Earth?. Physical Characteristics of the Sun. Sunspots. Solar Flare. Lecture . 9. Absolute Dating of the Earth. Major Concepts. The discovery of radioactivity in the early 1900’s and the recognition that . radioactive deca. y . (a statistical event) . occurs at a constant average rate for particular unstable isotopes has provided a means of determining the absolute ages of earth materials. 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 Pleistocene Epoch. The Dawn of Humans and the Effects of Climate on Civilizations. Major Concepts. Climatic changes produced distinctive flora and fauna that was adapted to cold weather. Among flora were the expansion of grasslands, tundra, boreal spruce forests, and hardwood forests. Lecture 3. Development of. Geological Concepts, Part I. Major Concepts. In the 17. th. and 18. th. centuries (Age of Reason), application of the scientific method of observation and interpretation began with the purpose of understanding earth processes in the context of the biblical account, but wound up challenging and discrediting that explanation. . Lecture 9. Absolute Dating of the Earth. Major Concepts. The discovery of radioactivity in the early 1900’s and the recognition that . radioactive decay . (a statistical event) occurs at a constant average rate for particular unstable isotopes has provided a means of determining the absolute ages of earth materials. Midterm 2. Preparation/Review. Style of Questions. Matching term w/ definition. Short definition of concepts/processes. Name some of multiple characteristics. 25% of points from Part II Quizzes. REVIEW . Lecture 7. Fundamentals of . Stratigraphy. . I. Geologic Time Scale, . Stratigraphic. Units, Sedimentary . Facies. Major Concepts. In the early 1800’s, the geologic rock record and time scale was deciphered from careful mapping and observations of fossil assemblages throughout Europe. 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.. JournalofGeologyKUNLUNACCRETIONARYTECTONICS693etal.2000)andnowisinfaultcontactwiththeYixiekevolcanicrocks(g.3).Ithashigh(11.6%)andhighSrratios()butslightlylower)values0.7097