PPT-Historical Geology This period is about 5 times as long as the Paleozoic and Mesozoic

3 billion years ago b ya The oldest rock is dated at 38 bya The Earth is thought to be 46 bya Periods within the Precambrian PROTEROZOIC ARCHEAN Era Precambrian. Clapham. University of California, Santa Cruz. mclapham@ucsc.edu. Disparity trends in the shell coiling shape of . ammonoids. Ammonoid. coiling geometry. From . Korn. & Klug, 2012. The coiled shells of . Paleozoic regime shifts and climate Paleozoic regime shifts and climateJournal compilation GEOL 2110. The Paleozoic Era. Carboniferous and the Permian Periods. in North America. Major Concepts. Carbonate deposition dominant in the Silurian and Devonian, persisted into the early Carboniferous (the Mississippian period). . GEOL 2110. The Paleozoic Era. Geological History of Gondwanaland and Late Paleozoic Life. Major Concepts. The continental reconstructions of . Gondwana. by Werner and . DuToit. were bang on and confirmed by geologic mapping, . Important Terminology. The Geologic Column. Eonothem. Erathems. Systems. Eonothem. Erathems. Systems. Eon. Era. Periods. Chronostratigraphic. Geochronologic. Two Sets of Terminology. Precambrian. Phanerozoic. By: Noah Bahnick. 1) The first . piece of text evidence. . I found was on Page . 42, paragraph 5, where it . says . “the . teacher . is . writing on . the . chalkboard. .” . Today we don’t use chalkboards in school on a regular basis. This is because we have moved . Evolution of the Continents. Important Terms. Craton: interior of continents made of stable Precambrian and Paleozoic . rocks.. Shield: portion of Craton composed of older Precambrian . rocks.. Platform: portion of Craton made of younger Paleozoic . To learn how the geologic timeline was made and how the length of the various periods are different. Agenda. Progress reports – need to be signed by Parent/guardian. Geologic History Notes. Project –highlights. 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.. The geology of Iraq as a study is closely depended on basic geologic branches, such as tectonics, . stratigraphy. , . sedimentology. , petrology, paleontology and structural geology. On the other hand, there are some applied branches in geology directly related to studying geology of Iraq, such as petroleum geology, hydrogeology and economic geology. To understanding the geology of Iraq, we must return to tectonic and . Important Terms. Craton: interior of continents made of stable Precambrian and Paleozoic rocks.. Shield: portion of Craton composed of older Precambrian rocks.. Platform: portion of Craton made of younger relatively undeformed Paleozoic sediments..