PPT-Earth History

GEOL 2110 The Pleistocene Epoch The Ice Age Major Concepts The gradual cooling evident in the mid to late Cenozoic reached a critical threshold which triggered extensive glaciation around 18 Ma . By: C.J. Ellis. The Beginning of Earth Day. Ah, 1970. A year with many ups and downs, including the Beatles’ last album, the death of Jimi Hendrix, the release of Simon and Garfunkel’s number 1 hit “Bridge Over Troubled Water”, and the occurrence of the Vietnam War. But the most important event that year was the creation of Earth Day. The idea was brought to people’s attention by U.S. senator from Wisconsin, Gaylord Nelson. He was inspired to do something about the ridiculous amount of energy used at the time. No one paid attention to how much fuel their v8 sedans were slurping up and no one seemed to panic about the massive oil spill in Santa Barbara in 1969. But something needed to be done, so Gaylord stepped up to the plate. He gathered many people to promote eco-friendly activities, and on April 22, over 20 million people marched the streets of the U.S. protesting the environment’s deterioration. On that day, Earth Day was born.. Spring 2014. Instructor: Clint Conrad . . . office: 804 POST. . phone: 956-6649. . . e-mail: . clintc@. hawaii.edu. GG101: Dynamic Earth, Fall 2013. Purpose: An overview of Planet Earth and its ever-changing. Chemical conditions of the early Earth. . A model for the first cells. First life. Life changes the planet: oxygenating Earth’s oceans and atmosphere. Eukaryotic cells descended from prokaryotic cells. Time, stratigraphy and relative dating. Understanding of the Earth ca. 1700. (the end of the . ‘. scientific revolution. ’. ). • Earth proven to be an oblate spheroid (Newton. ’. s predictions, confirmed by French . NS3310 - Physical Science Studies. Geologic Time. Relative Time. Law of Superposition. Uniformitarianism. Unconformities. Absolute Time. Radiometric Datine. Earth History. Hopscotch Through Geologic Time. The Cenozoic Era. Spans the . 65.5 Ma, from the end of the Mesozoic to today.. . There is not agreement in the Earth science community about whether the Cenozoic should be sub-divided into Tertiary and Quaternary or into . 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:. 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. . -An . example of what a finished . “novel” . might look like is . on slide 12.. -Earth’s Timeline material starts on slide 13.. Research Resources:. Network Videos:. Computer->Students->Abraham->Science Class-> Earth’s History Videos. 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 . How old is the earth?. How old is our earth?. Aristotle thought the Earth had existed eternally.. Early Romans believed its formation was relatively recent due to no records before the Trojan War.. 1640 – Ussher calculated Earth was created in . 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.. Eras of Earth’s History EQ: What causes changes in the Earth? How does knowing the past give us a VISION for the future? Precambrian Time Eon Precambrian Time Eon 4.6 billion years ago-545 million years ago Michelle Kirchoff. Southwest Research Institute. Center for Lunar Origin and Evolution. Southwest Research Institute in Boulder. http://. www.boulder.swri.edu. /. Center for Lunar Origin and Evolution (CLOE).