C., Zahnle, K. J., Sleep, N. H., and Nisbet, E. G., 2010
Lower boundary definition
Formation of the Earth
Upper boundary definition
Collision between Proto-Earth and the Protoplanet Theia
A revised proposal in 2012[2] suggested the Chaotian as the first era of the Hadean representing the time between the formation of the solar system c. 4.567 Ga[3] and the oldest preserved crustal material on Earth, a c. 4.404 Ga[4] detrital zircon from the Jack Hills of the Narryer Terrane in Western Australia.
The original proposal in 2010 divided the Chaotian into two eras and four periods. No numerical upper age limits were provided, only the younger age limit of ~4.5 Ga for the boundary between the proposed Chaotian and Hadean boundary.
The revised proposal in 2012 did not subdivide the proposed Chaotian era (of the Hadean eon) into periods.
^ abGoldblatt, C.; Zahnle, K.J.; Sleep, N.H.; Nisbet, E.G. (2 February 2010). "The Eons of Chaos and Hades". Solid Earth. 1 (1): 1–3. Bibcode:2010SolE....1....1G. doi:10.5194/se-1-1-2010.
^ abVan Kranendonk, Martin J. (2012), Altermann, Wladyslaw; Beard, Brian L.; Hoffman, Paul F.; Johnson, Clark M.; Kasting, James F.; Melezhik, Victor A.; Nutman, Allen; Papineau, Dominic; Pirajno, Franco, "A Chronostratigraphic Division of the Precambrian", The Geologic Time Scale, Elsevier, pp. 299–392, doi:10.1016/b978-0-444-59425-9.00016-0, ISBN978-0-444-59425-9, retrieved 2020-07-31
^Connelly, J.N.; Bollard, J.; Bizzarro, M. (2017). "Pb–Pb chronometry and the early Solar System". Geochimica et Cosmochimica Acta. 201: 345–363. doi:10.1016/j.gca.2016.10.044.
^Wilde, Simon A.; Valley, John W.; Peck, William H.; Graham, Colin M. (11 January 2001). "Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago". Nature. 409 (6817): 175–178. Bibcode:2001Natur.409..175W. doi:10.1038/35051550. PMID 11196637. S2CID 4319774.
This geochronology article is a stub. You can help Wikipedia by expanding it.
chaotian, geology, chaotian, proposed, time, division, geologic, time, scale, first, proposed, 2010, named, after, chaos, primeval, void, greek, mythology, this, proposal, defines, chaotian, solar, system, wide, time, between, initiation, planetary, formation,. The Chaotian is a proposed time division of the geologic time scale First proposed in 2010 1 as an eon it is named after Chaos the primeval void in Greek mythology This proposal defines the Chaotian eon as a solar system wide time between the initiation of planetary formation and the hypothesised collision of the Protoplanet Theia with the proto Earth Chaotian4568 4404 Ma Pha Proterozoic Archean Had nChronologySubdivisionsSee textUsage informationCelestial bodyEarthRegional usageProposed subdivision of the Hadean eonDefinitionChronological unitEraStratigraphic unitErathemFirst proposed byC Zahnle K J Sleep N H and Nisbet E G 2010Lower boundary definitionFormation of the EarthUpper boundary definitionCollision between Proto Earth and the Protoplanet TheiaA revised proposal in 2012 2 suggested the Chaotian as the first era of the Hadean representing the time between the formation of the solar system c 4 567 Ga 3 and the oldest preserved crustal material on Earth a c 4 404 Ga 4 detrital zircon from the Jack Hills of the Narryer Terrane in Western Australia As of 26 December 2020 ref neither proposal had been adopted or officially ratified by the International Union of Geological Sciences Subdivisions EditThe original proposal in 2010 divided the Chaotian into two eras and four periods No numerical upper age limits were provided only the younger age limit of 4 5 Ga for the boundary between the proposed Chaotian and Hadean boundary The revised proposal in 2012 did not subdivide the proposed Chaotian era of the Hadean eon into periods Proposed Chaotian time intervals 2010 1 Eon Era Period Age Ga Chaotian Neochaotian Titanomachaen gt 4 5HyperitianEochaotian ErebreanNepheleanProposed Chaotian time intervals 2012 2 Eon Era Age Ga Hadean Jack Hillsian or Zirconian 4 404 to 4 030Chaotian 4 568 to 4 404See also EditAge of the Earth Formation and evolution of the Solar System Geologic time scaleReferences Edit a b Goldblatt C Zahnle K J Sleep N H Nisbet E G 2 February 2010 The Eons of Chaos and Hades Solid Earth 1 1 1 3 Bibcode 2010SolE 1 1G doi 10 5194 se 1 1 2010 a b Van Kranendonk Martin J 2012 Altermann Wladyslaw Beard Brian L Hoffman Paul F Johnson Clark M Kasting James F Melezhik Victor A Nutman Allen Papineau Dominic Pirajno Franco A Chronostratigraphic Division of the Precambrian The Geologic Time Scale Elsevier pp 299 392 doi 10 1016 b978 0 444 59425 9 00016 0 ISBN 978 0 444 59425 9 retrieved 2020 07 31 Connelly J N Bollard J Bizzarro M 2017 Pb Pb chronometry and the early Solar System Geochimica et Cosmochimica Acta 201 345 363 doi 10 1016 j gca 2016 10 044 Wilde Simon A Valley John W Peck William H Graham Colin M 11 January 2001 Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4 4 Gyr ago Nature 409 6817 175 178 Bibcode 2001Natur 409 175W doi 10 1038 35051550 PMID 11196637 S2CID 4319774 This geochronology article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Chaotian geology amp oldid 1022848033, wikipedia, wiki, book, books, library,
