1980
DOI: 10.1016/0301-9268(80)90012-1
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Crustal evolution of the early earth: The role of major impacts

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Cited by 51 publications
(19 citation statements)
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“…The unusual circular features referred to as coronae or ovoids could be the result of endogenic reworking of large impact basins, in accord with some ideas about the origin of some very old terrestrial structures [Salisbury and Ronca, 1966;Ronca, 1966;Goodwin, 1974;Frey, 1980;Grieve, 1980;Florensky et aL, 1981]. It is in the Early Precambrian of the Earth that corona-like features have been discovered, although as a rule they are much smaller [Saul, 1978;Gintoy, 1978;Eggers, 1979;Salop, 1982;Ilyin et aL, 1983; and others].…”
Section: The Area Between Sedna Planitia and Bell Regiosupporting
confidence: 55%
“…The unusual circular features referred to as coronae or ovoids could be the result of endogenic reworking of large impact basins, in accord with some ideas about the origin of some very old terrestrial structures [Salisbury and Ronca, 1966;Ronca, 1966;Goodwin, 1974;Frey, 1980;Grieve, 1980;Florensky et aL, 1981]. It is in the Early Precambrian of the Earth that corona-like features have been discovered, although as a rule they are much smaller [Saul, 1978;Gintoy, 1978;Eggers, 1979;Salop, 1982;Ilyin et aL, 1983; and others].…”
Section: The Area Between Sedna Planitia and Bell Regiosupporting
confidence: 55%
“…Consideration of the effects of impact events on the largescale geologic evolution of the earth has been limited to models dealing with the period of high impact flux prior to -4.0 by ago and the potential influence of hundreds to thousands of kilometer-sized impact basins on the establishment of the basic dichotomy between continental and oceanic crust (Frey, 1980;Grieve, 1980). The recent discoveries, however, of enrichments in siderophile elements at numerous Cretaceous-Tertiary boundary sites have led to hypotheses linking a major impact event or series of events to biological extinctions (Alvarez and others, 1980;Ganapathy, 1980;Hsu, 1980;Kyte and others, 1980;Smith and Hertogen, 1980).…”
Section: Introductionmentioning
confidence: 99%
“…Extraterrestrial flux = mass of incoming material / surface area of Earth = 60,000,000 kg / 510,100,000 km 2 = ~ 0.1 kg/km 2 /year (4) This value (~0.1 kg/km 2 /year) for the modern Earth impactor flux [Equation (4)] is modelled to have been 1,000 times greater during the Late Heavy Bombardment (LHB), ~3.9-3.8 Ga [42][43][44] , therefore roughly 100 kg/km 2 /year. This flux represents the absolute maximum for extraterrestrial input to Earth at any point during its history, perhaps equalled solely in the initial stages of planetary accretion [45] .…”
Section: Exogenous Organic Moleculesmentioning
confidence: 99%