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Earth Impact Database Sorted by : | Name | Diameter | Age |

 

Brent

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Brent
Ontario, Canada
N 46° 5'
W 78° 29'
3.8
>453 Ma
N
Y
C
Chondrite

Aerial Photograph

Aerial Photograph

DEM

References
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Allen, C. C., Gooding, J.L. and Keil,K., Hydrothermally altered impact melt from Brent and Ries craters (abstract). Lunar and Planetary Science XII, pp. 16-18. 1981.
Basilevsky, A. T., Fel'dman, V.I., Kapustkina, I.G. and Kolesov,G.M., On the distribution of iridium in the rocks of terrestrial impact craters (in Russian). Geokhimiya, v. 6, pp. 781-790. 1984.
Basilevsky, A. T., Florenskiy, K.P., Yakovlev, O.I., Ivanov, B.A., Fel'dman, V.I. and Granovskiy,I.B., Transformation of planetary material in high-speed collisions (in Russian). Geokhimiya, v. 7, pp. 946-960. 1982.
Beals, C. S., Terrestrial meteorite craters and their lunar counterparts. Ottawa Dominion Observatory Contributions, v. 7, pp. 1-10. 1967.
Beals, C. S., Innes, M.J.S. and Rottenberg,J.A., Fossil meteorite craters. Middlehurst, B.M. and Kuiper, G.P., eds., The Moon, Meteorites and Comets, University of Chicago Press, Chicago, v. IV, pp. 235-284. 1963.
Beals, C. S., Innes, M.J.S. and Rottenberg,J.A., The search for fossil meteorite craters. Ottawa Dominion Observatory Contributions, v. 4, pp. 1-31. 1960.
Beals, C. S., Fossil meteorite craters. Scientific American, v. 199, pp. 32-39. 1958.
Beck, A. E., Hamza, V.M. and Chang,C.C., Analysis of heat flow data correlation of thermal resistivity and shock metamorphic grade and its use as evidence for an impact origin of the Brent crater. Canadian Journal of Earth Sciences, v. 13, pp. 929-936. 1976.
Beck, A. E., Logis, Z., Terrestrial flow of heat in the Brent crater. Nature, v. 201, p. 383. 1964.
Chavez, R. E., An optimisation study of gravity data from the Brent crater, Ontario, Canada. First Break, v. 4, pp. 19-22. 1986.
Clark, J. F., Magnetic survey data at meteoritic impact sites in North America. Geomagnetic Service of Canada, Earth Physics Branch Open File # 83-5, 30 p. 1983.
Cockell, C. S., Lee, P., The Biology of Impact Craters - a review. Biol. Rev., 77, P. 279 - 310. 2002.
Currie, K. L., A study of potash fenitization around the Brent crater, Ontario - A Paleozoic alkaline complex. Canadian Journal of Earth Sciences, v. 8, pp. 481-497. 1971.
Currie, K. L.,., Shafiqullah, M., Carbonatite and alkaline igneous rocks in the Brent crater, Ontario. Nature, v. 215, pp. 725-726. 1967.
Dabizha, A. I., Ivanov, B. A., A geophysical model of the structure of meteorite craters and some problems of the mechanics of crater formation (in Russian). Meteoritika, v. 37, pp. 160-167. 1978.
Dabizha, A. I., A new interpretation of the structure of meteorite craters (in Russian). Astronomicheskii Vestnik, v. 11, pp. 73-77. 1977.
Dabizha, A. I., Fedynsky, V. V., Features of the gravitational field of astroblemes (in Russian). Meteoritika, v. 36, pp. 113-120. 1977.
Dabizha, A. I., Anuchin, M.S., Fedynsky, V.V. and Melikhov,V.R., Circular structures of the central part of the Russian platform (in Russian). Meteoritika, v. 34, pp. 88-91. 1975.
Dabizha, A. I., Krass, M.S. and Fedynsky,V.V., Evolution of meteorite craters as structures of planetary crust (in Russian). Astronomicheskii Vestnik, v. 10, pp. 5-18. 1975.
Dabizha, A. I., Fedynsky, V. V., The Earth's "star wounds" and their diagnosis by geophysical methods (in Russian). "Zemlya i Vselennaya", v. 3, pp. 56-64. 1975.
Dabizha, A. I., Krass, M. S., The evolution of explosive meteorite craters on Earth (in Russian). "Zemlya i Vselennaya", v. 5, pp. 80-88. 1975.
Dence, M. R., WIRGO in TIC's? [What (on Earth) is Really Going On in Terrestrial Impact Craters?], Workshop on Impact Cratering. 2003.
Dence, M. R., Grieve, R.A.F. and Robertson,P.B., Terrestrial impact structures: Principal characteristics and energy considerations. Roddy, D.J., Pepin, R.O. and Merrill, R.B., eds., Impact and Explosion Cratering, Pergamon Press, New York, pp. 247-275. 1977.
Dence, M. R., Guy-Bray, J. V., Some astroblemes, craters and cryptovolcanic structures in Ontario and Quebec. International Geological Congress, 24th, Montreal, Quebec, Excursion A-65, 61 p. 1972.
Dence, M. R., The nature and significance of terrestrial impact structures. International Geological Congress, 24th, Montreal, Canada, pp. 77-89. 1972.
Dence, M. R., Hartung, J.B. and Sutter,J.F., Old K-Ar mineral ages from the Grenville province, Ontario. Canadian Journal of Earth Sciences, v. 8, pp. 1495-1498. 1971.
Dence, M. R., Shock zoning at Canadian craters: Petrography and structural implications. French, B.M. and Short, N.M., eds., Shock Metamorphism of Natural Materials, Mono Book Corporation, Baltimore, MD, pp. 169-184. 1968.
Dence, M. R., The extraterrestrial origin of Canadian craters. New York Academy of Sciences, Annals, v. 123, pp. 941-969. 1965.
Dence, M. R., A comparative structural and petrographic study of probable Canadian meteorite craters. Meteoritics, v. 2, pp. 249-270. 1964.
Evans, N. J., Gregoire, D.C., Grieve, R.A.F., Goodfellow, W.D. and Veizer,J., Use of platinum-group elements for impactor identification: Terrestrial impact craters and Cretaceous-Tertiary boundary. Geochemica et Cosmochimica Acta, v. 57, pp. 3737-3748. 1993.
Garvin, J. B., Grieve, R. A. F., An analytical model for terrestrial simple craters: Brent and Meteor (abstract). Lunar and Planetary Science XIII, pp. 251-252. 1982.
Gold, D. P., A study of quartz subfabrics from the Brent crater, Ontario. French, B.M. and Short, N.M., eds., Shock Metamorphism of Natural Materials, Mono Book Corp., Baltimore, MD, pp. 495-508. 1968.
Grahn, Y., Ormö, J., Microfossil dating of the Brent meteorite crater, southeast Ontario, Canada. Revue de Micropaléontologie, v. 38, pp. 131-137. 1995.
Grieve, R. A. F., Terrestrial impact structures, Annual Review of Earth and Planetary Sciences, v. 15, pp. 245-270. 1987.
Grieve, R. A. F., The record of impact on Earth: Implications for a major Cretaceous/Tertiary impact event. Geological Society of America, Special Paper 190, pp. 25-37. 1982.
Grieve, R. A. F., Cintala, M. J., A method for estimating the initial impact conditions of terrestrial cratering events exemplified by its application to Brent crater, Ontario. Proceedings Lunar and Planetary Science Conference 12th, pp. 1607-1621. 1981.
Grieve, R. A. F., Dence, M. R., Principle characteristics of the impactites at Brent crater, Ontario, Canada (abstract). Lunar and Planetary Science IX, pp. 416-418. 1978.
Grieve, R. A. F., The melt rocks at Brent crater, Ontario, Canada. Proceedings Lunar and Planetary Science Conference 9th, pp. 2579-2608. 1978.
Grieve, R. A. F., The petro-chemistry of the melt rocks at Brent crater and their implications for the conditions of impact (abstract). Meteoritics, v. 13, pp. 484-486. 1978.
Grieve, R. A. F., Dence, M.R. and Robertson,P.B., Cratering processes: As interpreted from the occurrence of impact melts. Roddy, D.J., Pepin, R.O. and Merrill, R.B., eds., Impact and Explosion Cratering, Pergamon Press, New York, pp. 791-814. 1977.
Gurov, E. P., Gurova, E. P., Impact structures on the Earth's surface (in Russian). Geologicheskii Zhurnal, v. 47, pp. 117-124. 1987.
Hartung, J. B., Dence, M.R. and Adams,J.A.S., Potassium-Argon dating of shock-metamorphosed rocks from the Brent impact crater, Ontario, Canada. Journal of Geophysical Research, v. 76, pp. 5437-5448. 1971.
Hartung, J. B., Dence, M.R. and Adams,J.A.S., Application of the K-Ar method to the dating of shocked rocks: The Brent crater (abstract). Meteoritics, v. 4, pp. 183-184. 1969.
Innes, M. J. S., Recent advances in meteorite crater research at the Dominion Observatory, Ottawa, Canada. Meteoritics, v. 2, pp. 219-241. 1964.
Innes, M. J. S., Beals, C. S., Profile of the fossil crater at Brent, Ontario. Journal of the Royal Astronomical Society of Canada, v. 55, no. 258. 1961.
Innes, M. J. S., The use of gravity methods to study the underground structure and impact energy of meteorite craters. Journal of Geophysical Research, v. 66, pp. 2225-2239. 1961.
Khryanina, L. P., The structure of meteorite craters and their central uplifts (in Russian). Doklady Akademii Nauk SSSR, v. 238, pp. 195-198. 1978.
Koeberl, C., Milkereit, B., Continental Drilling and the Study of Impact Craters and Processes - an ICDP Perspective, In: Continental Scientific Drilling (eds. Harms, U., Koeberl, C., and Zoback, M.D.), Springer, Heidelberg, p. 95-161. 2007.
Liberty, B. A., The age of the Brent feature from geological observations. Ottawa Dominion Observatory Publication, v. 24. 1960.
Lindström, M., Six Ordovician craters (abstract). 4th International Workshop of the ESF Scientific Network on "Impact Cratering and Evolution of Planet Earth". The Role of Impacts on the Evolution of the Atmosphere and Biosphere with Regard to Short- and Long-Term Changes, p. 112. 1995.
Lozej, G. P., Beals, F. W., The unmetamorphosed sedimentary fill of the Brent meteorite crater, southeastern Ontario. Canadian Journal of Earth Sciences, v. 12, pp. 606-628. 1975.
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Matthews, L. W., The vertical distribution of thorium, uranium and potassuim in the Brent crater (B-1-59). B.Sc. Thesis, University of Western Ontario, London, Ontario. 1974.
Millman, P. M., Liberty, B.A., Clark, J.F., Willmore, P. and Innes,M.J.S., The Brent crater. Ottawa Dominion Observatory Publication, v. 24, 43 p. 1960.
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Ormo, J., Lindstrom, M., When a cosmic impact strikes the sea bed, Geol. Mag. V.137(1), p.67-80. 2000.
Palme, H., Grieve, R.A.F. and Wolf,R., Identification of the projectile at Brent crater, and further considerations of projectile types at terrestrial craters. Geochimica et Cosmochimica Acta, v. 45, pp. 2417-2424. 1981.
Palme, H., Wolf, R. and Grieve,R.A.F., New data on meteoritic material at terrestrial impact craters (abstract). Lunar and Planetary Science IX, pp. 856-858. 1978.
Parfenova O V., Yakovlev, O. I., Some peculiarities of selective evaporation in target rocks after meteoritic impact. Impact and Explosion Cratering, D. J. Roddy, R. O. Pepin and R. B. Merrill, Pergamon Press, New York, pp. 843-859. 1977.
Robertson, P. B., Grieve, R. A. F., Shock attenuation at terrestrial impact structures. Roddy, D.J., Pepin, R.O. and Merrill, R.B., eds., Impact and Explosion Cratering, Pergamon Press, New York, pp. 687-702. 1977.
Robertson, P. B., Grieve, R. A. F., Impact structures in Canada: Their recognition and characteristics. Journal of the Royal Astronomical Society of Canada, v. 69, pp. 1-21. 1975.
65. Robertson, P. B., Shock metamorphism of potassic feldspars. Unpublished Ph.D. Thesis, University of Durham, England, 326 p. 1973.
Schmidt, G., Palme, H. and Kratz,K.L., The fractionation of highly siderophile elements (HSE) in impact melts and the determination of the meteoritic components, Meteoritics, v. 30, pp. 573-574. 1995.
Selivanovskaya, T. V., The principal features of the geology of some astrobemes in foreign countries; Paleozoic astroblemes; the Brent astrobleme (in Russian). Geologiya Astroblem, Izd. Nedra, Leningrad, pp. 162-164. 1980.
Shafiqullah, M., Tupper, W.M. and Cole,T.J.S., K-Ar ages on rocks from the crater at Brent, Ontario. Earth and Planetary Science Letters, v. 5, pp. 148-152. 1968.
Yakovlev, O. I., Parfenova, O.V. and Ignatenko,K.I., Nonequilibrium condensation and high potassium impactites (in Russian). Meteoritika, v. 41, pp. 141-149. 1982.
Yakovlev, O. I., Parfenova, O. V., Petrochemical features of impactites and the significance of evaporation and condensation processes in impact crater formation (in Russian). Meteoritika, v. 40, pp. 113-121. 1982.
Yakovlev, O. I., Vernadsky, V.I. and Parfenova,O.V., The role of vaporization and condensation in the formation of the chemical composition of impactites. Lunar and Planetary Science XI, pp. 1285-1287. 1980.
Zotkin, I. T., Tsvetkov, V. I., Searches for meteorite craters on the Earth (in Russian). Astronomicheskii Vestnik, v. 4, pp. 55-56. 1970.
Zotkin, I. T., "Moon" craters on the Earth (in Russian). Priroda, v. 9, pp. 95-105. 1969.

 

 

* pre-1977 K-Ar, Ar-Ar and Rb-Sr ages recalculated using the decay constants of Steiger and Jager (1977) Ages in millions of years (Ma) before present.

** Abbreviations: C - Crystalline Target; C-Ms - Metasedimentary Target; M - Mixed Target (i.e.sedimentary strata overlying crystalline basement); S - sedimentary target (i.e. no crystalline rocks affected by the impact event). From Osinski. G. R., Spray J. G., and Grieve R. A. F. 2007. Impact melting in sedimentary target rocks: A synthesis. In The Sedimentary Record of Meteorite Impacts, Geological Society of America Special Paper. Editors: Evans K. Horton W., King D., Morrow J., and Warme J. Geological Society of America: Boulder, in press.

***
From Koeberl,C. Identification of meteoritic components in impactites. 1998, Koeberl, C. The Geochemistry and Cosmochemistry of Impacts. 2007 and PASSC Files. (IAB, IIIAB, IIIB, IIID - Iron Meteorite)

 

 

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