LEADER 05439nam 2200673 450 001 9910131630403321 005 20200520144314.0 010 $a1-118-86036-5 010 $a1-118-86035-7 010 $a1-118-86019-5 035 $a(CKB)3710000000468595 035 $a(EBL)2194769 035 $a(SSID)ssj0001558080 035 $a(PQKBManifestationID)16183723 035 $a(PQKBTitleCode)TC0001558080 035 $a(PQKBWorkID)14818564 035 $a(PQKB)10948179 035 $a(MiAaPQ)EBC4039340 035 $a(MiAaPQ)EBC2194769 035 $a(Au-PeEL)EBL4039340 035 $a(CaPaEBR)ebr11112931 035 $a(CaONFJC)MIL826442 035 $a(OCoLC)927509050 035 $a(PPN)191652288 035 $a(EXLCZ)993710000000468595 100 $a20151105h20152015 uy 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt 182 $cc 183 $acr 200 04$aThe early earth $eaccretion and differentiation /$fJames Badro, Michael Walter, editors 210 1$aWashington, District of Columbia ;$aHoboken, New Jersey :$cAmerican Geophysical Union :$cWiley,$d2015. 210 4$dİ2015 215 $a1 online resource (196 p.) 225 1 $aGeophysical Monograph ;$v212 300 $a"This Work is a co-publication between the American Geophysical Union and John Wiley and Sons, Inc"--Cover. 311 $a1-118-86057-8 320 $aIncludes bibliographical references and index. 327 $aTitle Page; Copyright Page; Contents; Contributors; Preface; Acknowledgments; Chapter 1 Timing of Nebula Processes That Shaped the Precursors of the Terrestrial Planets; 1.1. Introduction; 1.2. Young Stellar Objects and Their Disks: Analogs of the Early Solar System; 1.2.1. From the Interstellar Medium to a Protostellar Core; 1.2.2. From a Protostar to a Pre-main Sequence Star; 1.2.3. Duration of Protostellar and Pre-main Sequence Stages; 1.3. The Samples of the Solar Protoplanetary Disk; 1.3.1. Chondrites and Their Putative Parent Bodies 327 $a1.3.2. The Major High-Temperature Components of Chondrites 1.4. Chronology of the First Few Million Years: The Period of the Disk; 1.4.1. Short-Lived Radionuclides Present in the Accretion Disk; 1.4.2. The Dual Origin of SLRs: Presolar Stellar Sources and Solar System Irradiation; 1.4.3. Timing of Irradiation Processes in the Early Solar System; 1.4.4. A Chronology for the Formation of the First Solar System Minerals and Rocks Based on 26Al; Acknowledgments; References; Chapter 2 The Earth's Building Blocks; 2.1. Introduction; 2.2. Cosmochemical Constraints; 2.3. BSE and Bulk Earth Composition 327 $a2.3.1. Similarity to Chondritic Meteorites (Chondrites)2.3.2. Chondritic Material; 2.3.3. Preferred Bulk Earth Model; 2.4. Chondritic vs. Achondritic Earth; 2.5. Isotopic Arguments; 2.5.1. Applications of Isotopic Anomalies; 2.5.2. Radiogenic Isotopes; 2.5.3. Stable Isotope Fractionation; 2.6. Conclusions; Acknowledgments; References; Chapter 3 Earth and Terrestrial Planet Formation; 3.1. Introduction; 3.1.1. History of the Solar System; 3.1.2. Stages of Planet Formation; 3.1.3. Pebble Growth Processes; 3.1.4. New Pebble Model from Dust to Embryo 327 $a3.2. Models of the Giant Impact Phase of Terrestrial Planet Formation 3.2.1. Comparing Terrestrial Planet Systems; 3.3. Classical Models; 3.3.1. Eccentric Jupiter and Saturn, Current Orbits; 3.3.2. Extra-eccentric Jupiter and Saturn; 3.3.3. Circular Jupiter and Saturn, pre-Nice 2.0 Model; 3.4. Truncated Disk Models; 3.4.1. 'Grand Tack', Migrating Jupiter and Saturn; 3.5. Earth in the Grand Tack Model; 3.5.1. The Growth of Earth; 3.5.2. Composition of Earth and the Other Terrestrial Planets; 3.6. Conclusion and Discussion; References; Chapter 4 Late Accretion and the Late Veneer 327 $a4.1. Introduction 4.2. The Late Veneer as Defined in Geochemistry; 4.3. Late Accretion Mass as Defined in Accretion Models; 4.4. Relationship Between Late Veneer and Late Accretion; 4.4.1. Can the Late Accretion Mass Be Significantly Smaller Than the Late Veneer Mass?; 4.4.2. Can the Late Accretion Mass Be Significantly Larger Than the Late Veneer Mass?; 4.4.3. Summary and Implications for Moon Formation; 4.5. Late Veneer and the Origin of Earth's Volatiles; 4.6. Conclusions; Acknowledgments; References; Chapter 5 Early Differentiation and Core Formation: Processes and Timescales 327 $a5.1. Introduction 330 $aThe Early Earth: Accretion and Differentiation provides a multidisciplinary overview of the state of the art in understanding the formation and primordial evolution of the Earth. The fundamental structure of the Earth as we know it today was inherited from the initial conditions 4.56 billion years ago as a consequence of planetesimal accretion, large impacts among planetary objects, and planetary-scale differentiation. The evolution of the Earth from a molten ball of metal and magma to the tectonically active, dynamic, habitable planet that we know today is unique among the terrestrial plane 410 0$aGeophysical monograph ;$v212. 607 $aEarth (Planet)$xInternal structure 607 $aEarth (Planet)$xGeology 676 $a551.11 702 $aBadro$b James 702 $aWalter$b Michael 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910131630403321 996 $aThe early earth$91919787 997 $aUNINA