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The Old Stone Age. 10,000 8,000 BC ... The New Stone Age. 8,000 3,000 BC *Global population is estimated to be less than 200 million ... The Iron Age. 2,000 BC AD 250 ...
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T.M Harrison, J. Blichert-Toft, W. M ller, F. Albarede, P. Holden, S.J. Mojzsis. Science 2005 ... Heterogeneous Hadean Hafnium: Evidence of Continental Crust at ...
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Chapter 8 Precambrian Earth and Life History The Hadean and Archean
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between roughly -50 and 60 C. THE PRIMORDIAL EARTH. Hadean and Archean Eons ... Singular = Mare, plural= Maria. Large, dark areas. Covered with basaltic lava flows ...
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Reconstructing the History of Earth and Life. The Hadean Earth and ... Archaean ('ancient life') eon. Single-cell organisms: first fossil record (4.0 2.5 byr) ...
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THE PRIMORDIAL EARTH Hadean and Archean Eons Evidence of Anoxia Lack of oxidized iron in the oldest sedimentary rocks. Urananite and pyrite are readily oxidized today ...
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Archean Proterozoic Hadean Many Igneous rocks are Precambrian Granites. The metamorphic rocks exposed Along this route consist of Precambrian schist and gneiss ...
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Geology 103 Evolution of the atmosphere Hadean: Lots of carbon dioxide, ... plate tectonics settles down What does a greenstone belt remind you of?
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... Hadean (5.4 to 3.8 b.y.); Archaean (3.8 to 2.5 b.y.); and Proterozoic (2.5 b.y. ... Archaean Era. Proterozoic Era. 2.5 b.y. 545 m.y. Precambrian Time Scale. ...
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The many life forms of the Precambrian era were not complex and they ... The first one is Hadean time, then Archean era, and finally Proterozoic era. Plants ...
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Formation of the Solar System. The Solar Nebula Hypothesis ... Formation of the Solar System. The Solar Nebula Hypothesis. 90% of mass to center. ...
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The Proterozoic Eon and the Early Paleozoic
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It was the first of four eras on the geological time scale. The Precambrian Supereon The Precambrian Supereon Is divided into three Precambrian eons, ...
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Last April, a 5th grader pointed out to the Smithsonian Natural History Museum ... the depths of the planet, tore the thin crust, and then cooled off on the ...
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Trans-Hudson Orogen. Includes a sedimentary record of: ... Trans-Hudson Orogen. THE LESS-PRIMORDIAL EARTH. The Paleoproterozoic Era. Paleoproterozoic Ice Age ...
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Agenda Monday 11-9-09 Introduction to Evolution The Big Questions: See the U4 Calendar Go over Genetics Exam & Grades (we have less than 6 weeks until the end of the ...
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Geologic Time Relative Time/absolute time Eons Eras Period Epoch Geologic ... Each Era can be broken into two or more periods We live in the Quaternary Period, ...
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When Earth formed, immense amount heat released by meteorite bombardment melted the planet. ... Primordial (from planet formation) Decay of radioactive elements ...
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Title: PowerPoint Presentation Author: McDougal Littell Last modified by: LocalAdmin Created Date: 9/14/2006 4:17:10 PM Document presentation format
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Sci. 3-5 Times Marches On Pages 73-77 The history of the Earth is recorded in rock layers 1) Earth is about 4.6 billion years old. The geologic time scale- a scale ...
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... Paleozoic, Mesozoic and Cenozoic Period ... major subdivisions of animal history Sometimes called the Age of Mammals Tertiary Period Quaternary Period ...
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Unfinished Earth. History and modern ... Excellent evidence on Moon, Mars and other terrestrial planets ... Earth the water planet. Earth the water planet ...
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Title: Gifted Education Section Curriculum Development Institute, Education Bureau Author: Hon Chim Chiu
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The Geologic Time Scale The Geologic Time Scale Based on their interpretations of the rock record, geologists have divided Earth s 4.56 billion-year history into ...
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Founders of Historical Geology. Charles Darwin 1809-1882 ... Carboniferous. PALEOZOIC. Time and Geology. Subdivisions of Time. EPOCH. Periods are subdivided into ...
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... We will provide thick-soled shoes to protect your feet. sjhsearthscience.blogspot.com End of Proterozoic Paleozoic Era Earths interior has cooled down by now and ...
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Evolution of Earth
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Geologic Time Relative vs. Absolute Time Stratigraphy and Relative Time Relationships Unconformities and Gaps in Stratigraphic Record Stratigraphic Correlation
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Cenozoic 'Recent Life' Mammals and grasses became abundant. Humans have evolved and lived wholly in the Cenozoic Era. Evolution ...
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Nebulae swirl together and coalesce under force of gravity ... The remaining 0.2% remained swirling around the sun as a disk-shaped cloud of gas and dust. ...
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Intermission: Plate Tectonics * * * * * * * * * * * * * * * * * * * * * * * * Transform Boundary Transform Example San Andreas Fault Convergent Boundary: Subduction ...
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A collection of processes that collectively explains how a planetary system operates. ... The Moon was closer to earth and the Sun was less luminous. ...
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The oldest known rocks on Earth are 3.96 billion years old. Precambrian ... approximately 4 billion years old ... 3.3- to 3.5-billion-year-old Warrawoona Group ...
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model for the beginning of the universe. http://rainbow.ldeo.columbia.edu/courses/v1001/7.html ... Galaxy's velocity is proportional to its distance (galaxies ...
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Geologic Time Scale a timeline of Earth s History divided into periods of time by major events or changes on Earth What do we call these major events or changes?
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Stratotypes unit based on actual rock sections, units independent of reference ... Isochronous units rock units formed during the same span of time, bounded by ...
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Plate Tectonics in the Archean On Archean granites, greenstones, cratons and tectonics: does the evidence demand a verdict? M. J. de Wit (1998)
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Chapter 2, Section 3 Unit A Science 8 Messana What did you decide was more useful tree rings or ice cores? Why? Geologic Time Scale a timeline of Earth s ...
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Chapter 10. Origin of the Earth and of Life. Geological Scale ... Photolysis OH H and CO O. H escapes. But this also means that: 2 H2 O2 2H2O. 2CO O2 2CO2 ...
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Title: PreCambrian Author: Charles L. Smart Last modified by: Chuck Created Date: 11/19/2004 1:04:05 PM Document presentation format: On-screen Show (4:3)
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... The Archean atmosphere is ... .edu/lecturers/gould/gifs/burg.jpg 5. http://www-tc.pbs.org/wgbh/nova/link/images/hist_img_01_prec.jpg http://www.geology.wisc.edu ...
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... cells, which deliver hot rock to base of the lithosphere (litho='stone' ... Competing motions due to convection have broken lithosphere into plates. ...
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an interval of time. Geologic Time Scale. Divisions: Eons (largest) Phanerozoic ... Eons (dates) Eras (for Phanerozoic & dates) Periods (Miss, Penn, & Tertiary) ...
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Until Shoemaker-Levy 9! Berringer Crater, Arizona. Young impact structure ... Planetary Accretion Today: Shoemaker-Levy 9. Significance of Shoemaker-Levy 9 ...
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Set thy house in order 2 Kings 20:1-6 * Set thy house in order Observations: Life Is Uncertain! Proverbs 27:1 Death is certain. Ecclesiastes 9:5, the ...
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GEOLOGIC TIME - Earth is 4.65 Ga old A diagrammatic representation of the last 3.8 billion years of the geological time scale of the Earth showing the different ...
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... plates formed volcanic arcs by subduction Archean Plate Tectonics Plate tectonic activity has ... especially in Zimbabwe These ore deposits are found in ...
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Title: PowerPoint Presentation Author: Stacy - McGraw-Hill Higher Education Last modified by: greg Created Date: 6/16/2003 2:59:31 PM Document presentation format
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... grew more rapidly along their margins a process called continental accretion as plates collided with island arcs and other plates Also, ...
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Title: Geologic Time p. 199-209 Author: Dept. of Geology and Geophysics Last modified by: saar Created Date: 2/18/2004 7:51:15 PM Document presentation format
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... a geologic column, which is a composite column containing, in chronological order, the succession of known strata, fitted together on the basis of their ...
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Island Arcs and other terranes accrete as. intervening ocean crust is subducted ... Shark Bay Australia. Formed in hypersaline areas where grazing gastropods ...
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Title: B Author: Tommy Thomas Last modified by: Bobby Witherington Created Date: 8/20/2005 2:32:23 AM Document presentation format: On-screen Show (4:3)
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(Lecture note: Physical Geology) 1
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Michael Russell, Science 302, 580581 2003
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Chapter 8 Time and Geology
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