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

 

Newporte

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Newporte
North Dakota, U.S.A.
N 48° 58'
W 101° 58'
3.2
< 500
N
Y
M
-

 

References
Castaño, J. R., Clement, J.H., Kuykendall, M.D. and Sharpton,V.L., Source-rock potential of impact craters. Ames Structure in Northwest Oklahoma and Similar Features: Origin and Petroleum Production (1995 Symposium), K. S. Johnson and J. A. Campbell, Oklahoma Geological Survey, Norman, Oklahoma, v. Circular 100, pp. 100-103. 1997.
Clement, J. H., Mayhew, T. E., Newporte discovery opens new pay. Oil and Gas Journal, pp. 165-172. 1979.
Donofrio, R. R., Survey of hydrocarbon-producing impact structures in North America: Exploration results to date and potential for discovery in Precambrian basement rock. Ames Structure in Northwest Oklahoma and Similar Features: Origin and Petroleum Production (1995 Symposium), K. S. Johnson and J. A. Campbell, Oklahoma Geological Survey, Norman, Oklahoma, v. Circular 100, pp. 17-29. 1997.
Forsman, N. F., Gerlach, T.R. and Anderson,N.L., Impact origin of the Newporte structure, Williston Basin, North Dakota. AAPG Bulletin, v. 80, pp. 721-730. 1996.
Forsman, N. F., Evidence for an impact origin of the Newporte structure, Renville County, North Dakota (abstract). Geological Society of America,. 1994.
Gerlach, T. R., Forsman, N.F. and Anderson,N.L., Evidence for an impact origin of the Newporte structure, Renville County, North Dakota (abstract). Geological Society of America, Seattle, Washington. 1994.
Grieve, R. A. F., Masaitis, V. L., The economic potential of terrestrial impact craters. International Geology Review, v. 36, pp. 105-151. 1994.
Koeberl, C., Impact cratering: The mineralogical and geochemical evidence. Ames Structure in Northwest Oklahoma and Similar Features: Origin and Petroleum Production (1995 Symposium), K. S. Johnson and J. A. Campbell, Oklahoma Geological Survey, Norman, Oklahoma, v. Circular 100, pp. 30-54. 1997.
Koeberl, C., Reimold, W.U. and Brandt,D., The Newporte impact structure, North Dakota: Shock metamorphism in breccias (abstract). Lunar and Planetary Science XXVI, pp. 773-774. 1995.
Koeberl, C., Reimold, W. U., The Newporte impact structure, North Dakota, USA. Geochimica et Cosmochimica Acta, v. 59, pp. 4747-4767. 1995.
Koeberl, C., Reimold, W. U., Additional evidence for impact origin of the Newporte, North Dakota, structure (abstract). Geological Society of America, Seattle, Washington. 1994.
Westbroek, H., Stewart, R., The formation, morphology, and economic potential of meteorite impact craters, CREWES Research Report v. 8, p. 1-26. 1996.

 

* 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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