%0 Journal Article %1 Sleep2001a %A Sleep, N. H. %A Zahnle, K. %A Neuhoff, P. S. %D 2001 %J PROCEEDINGS OF THE NATIONAL ACADEMY OF ScienceS OF THE UNITED STATES OF AMERICA %K 2A; ASSIMILATION; ASTEROID ATMOSPHERE EVOLUTION; IMPACTS; LAYER MANTLE; OCEANIC-CRUST; PROPERTIES; RIDGE; SYSTEM; THERMODYNAMIC %N 7 %P 3666--3672 %T Initiation of clement surface conditions on the earliest Earth %V 98 %X In the beginning the surface of the Earth was extremely hot, because the Earth as we know it is the product of a collision between two planets, a collision that also created the Moon. Most of the heat within the very young Earth was lost quickly to space while the surface was still quite hot. As it cooled, the Earth's surface passed monotonically through every temperature regime between silicate vapor to liquid water and perhaps even to ice, eventually reaching an equilibrium with sunlight. Inevitably the surface passed through a time when the temperature was around 100 degreesC at which modern thermophile organisms live. How long this warm epoch lasted depends on how long a thick greenhouse atmosphere can be maintained by heat flow from the Earth's interior, either directly as a supplement to insolation, or indirectly through its influence on the nascent carbonate cycle. In both cases, the duration of the warm epoch would have been controlled by processes within the Earth's interior where buffering by surface conditions played little part. A potentially evolutionarily significant warm period of between 10(5) and 10(7) years seems likely, which nonetheless was brief compared to the vast expanse of geological time.

@article{Sleep2001a, abstract = {In the beginning the surface of the Earth was extremely hot, because the Earth as we know it is the product of a collision between two planets, a collision that also created the Moon. Most of the heat within the very young Earth was lost quickly to space while the surface was still quite hot. As it cooled, the Earth's surface passed monotonically through every temperature regime between silicate vapor to liquid water and perhaps even to ice, eventually reaching an equilibrium with sunlight. Inevitably the surface passed through a time when the temperature was around 100 degreesC at which modern thermophile organisms live. How long this warm epoch lasted depends on how long a thick greenhouse atmosphere can be maintained by heat flow from the Earth's interior, either directly as a supplement to insolation, or indirectly through its influence on the nascent carbonate cycle. In both cases, the duration of the warm epoch would have been controlled by processes within the Earth's interior where buffering by surface conditions played little part. A potentially evolutionarily significant warm period of between 10(5) and 10(7) years seems likely, which nonetheless was brief compared to the vast expanse of geological time.}, added-at = {2009-11-03T20:21:25.000+0100}, author = {Sleep, N. H. and Zahnle, K. and Neuhoff, P. S.}, biburl = {https://www.bibsonomy.org/bibtex/2e57582126bd93ec1d48755f752cf120c/svance}, citedreferences = {*BAS VOL STUD PROJ, 1981, BAS VOLC TERR PLAN ; ABBOTT D, 1994, J GEOPHYS RES-SOLID, V99, P13835 ; ABE Y, 1997, PHYS EARTH PLANET IN, V100, P27 ; BISCHOFF JL, 1991, AM J SCI, V291, P309 ; BLICHERTTOFT J, 1999, EARTH PLANET SC LETT, V173, P25 ; CAMERON AGW, 1997, Icarus, V126, P126 ; CARLSON RL, 1998, J GEOPHYS RES-SOL EA, V103, P7069 ; DAWSON JB, 1989, CARBONATITES GENESIS, P255 ; FEGLEY B, 1992, GEOPHYS MONOGR, V66, P7 ; GOGARTENBOEKELS M, 1995, ORIGINS LIFE, V25, P251 ; HOOFT EEE, 1996, EARTH PLANET SC LETT, V142, P289 ; HUANG WL, 1980, AM MINERAL, V65, P285 ; JAVOY M, 1991, EARTH PLANET SC LETT, V107, P598 ; JOHNSON JW, 1992, COMPUT GEOSCI, V18, P899 ; KASTING JF, 1986, Science, V234, P1383 ; KASTING JF, 1988, Icarus, V74, P472 ; KEMPE S, 1985, CHEM GEOL, V53, P95 ; KEMPE S, 1994, B I OCEANOGRAPHIQUE, V13, P61 ; KENT GM, 1994, J GEOPHYS RES, V99, P9097 ; KERRICK DM, 1998, Geology, V26, P375 ; KOJITANI H, 1995, GEOPHYS RES LETT, V22, P2329 ; KURAMOTO K, 1996, J GEOPHYS RES-PLANET, V101, P14909 ; LAFON GM, 1974, SPEC PUB SOC EC PALE, V20, P205 ; LUTH RW, 1999, SPEC PUB GEOCHEM SOC, V6, P297 ; MELOSH HJ, 1989, Nature, V338, P487 ; MELOSH HJ, 1990, ORIGIN EARTH, P69 ; MICHAEL PJ, 1989, GEOCHIM COSMOCHIM AC, V53, P3131 ; MICHAEL PJ, 1998, J GEOPHYS RES-SOL EA, V103, P18325 ; MOJZSIS SJ, 2001, Nature, V409, P178 ; NEUHOFF PS, 2000, THESIS STANFORD U ST ; NEWSOM HE, 1995, GLOBAL EARTH PHYSICS, P159 ; NISBET EG, 1993, LITHOS, V30, P291 ; OLAFSSON M, 1983, EARTH PLANET SC LETT, V64, P305 ; PEACOCK SM, 1994, EARTH PLANET SC LETT, V121, P227 ; PEACOCK SM, 1996, SUBDUCTION TOP BOTTO, P19 ; PINNEAU F, 1994, EARTH PLANET SC LETT, V123, P179 ; ROBIE RA, 1995, B US GEOLOGICAL SU B, V2131 ; SACCOCIA PJ, 1993, AM MINERAL, V78, P607 ; SCHULTZ A, 1997, PHILOS T ROY SOC A, V355, P387 ; SCHULTZ A, 1999, MIDOCEAN RIDGES DYNA, P171 ; SHOCK EL, 1998, J GEOPHYS RES-PLANET, V103, P28513 ; SLEEP NH, 1989, Nature, V342, P139 ; SLEEP NH, 1998, J GEOPHYS RES-PLANET, V103, P28529 ; SLEEP NH, 2001, J GEOPHYS RES-PLANET, V106, P1373 ; STEVENS TO, 1997, MICROBIOLOGY TERREST, P202 ; Turcotte DL, 1982, GEODYNAMICS APPL CON ; WILDE SA, 2001, Nature, V409, P175 ; ZAHNLE K, 1996, COMETS ORIGIN EVOLUT, P175 ; ZHANG YX, 1993, EARTH PLANET SC LETT, V117, P331}, interhash = {24c5352014184059095edc8f9c889525}, intrahash = {e57582126bd93ec1d48755f752cf120c}, journal = {PROCEEDINGS OF THE NATIONAL ACADEMY OF ScienceS OF THE UNITED STATES OF AMERICA}, keywords = {2A; ASSIMILATION; ASTEROID ATMOSPHERE EVOLUTION; IMPACTS; LAYER MANTLE; OCEANIC-CRUST; PROPERTIES; RIDGE; SYSTEM; THERMODYNAMIC}, number = 7, owner = {svance}, pages = {3666--3672}, timestamp = {2009-11-03T20:22:15.000+0100}, title = {Initiation of clement surface conditions on the earliest Earth}, volume = 98, year = 2001 }