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The Kilmichael Structure, Mississippi; no evidence for an impact origin from a preliminary petrographic study


, : The Kilmichael Structure, Mississippi; no evidence for an impact origin from a preliminary petrographic study. Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 31(Pages (abstr

A petrographic study of 20 mostly sandy samples from a drill core near the center of the Kilmichael structure failed to detect evidence for shock metamorphic effects.


Accession: 018458316

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Related references

Robertson P.B.; Butler Mark D., 1982: The Kilmichael Structure, Mississippi; evidence for a meteorite impact origin. Journal of Geology 90(5): 589-601

King David T.; Petruny Lucille W., 2007: Kilmichael Structure (suspected impact feature), Mississippi. Kilmichael structure, a suspected impact feature in the coastal plain of central Mississippi, is a 10-km diameter circular feature with remarkable faults and stratigraphic deformation. Drilling to -234.5 m at the center of this circular structure...

King David T.J.; Petruny Lucille W., 2006: Cosmic impact in the coastal plain of Mississippi? The Kilmichael Structure. The Kilmichael structure, a probable impact crater in Montgomery County, Mississippi, is a circular, structurally disturbed feature possessing a diameter of approximately 5.6 mi. A refraction seismic survey reveals subsurface characteristics of an...

King D.T.J.; Petruny L.W., 2002: Cosmic impact in the coastal plain of Mississippi? The riddle of the Kilmichael Structure. Meteoritics and Planetary Science 37(7, Suppl

French Bevan M., 1968: Sudbury structure, Ontario; some petrographic evidence for an origin by meteorite impact. Granitic inclusions in Onaping formation, planar features in quartz and feldspar, deformational textures in feldspar, shatter cones.

French, B.M., 1967: Sudbury structure, ontario: some petrographic evidence for origin by meteorite impact. Unusual deformation structures, similar to those observed in rocks from known and suspected meteorite impact craters, are observed in inclusions of basement rock in the Onaping formation at Sudbury, Ontario. These features, which include planar se...

Val ter A.A.; Ryabenko V.A., 1973: Petrographic evidence for impact-meteorite origin of the Il'intsa Structure, Vinnitsa area. Geologicheskiy Zhurnal (Kiev, 1968) 33(6): 139-141

Short Nicholas M., 1967: Petrographic evidence for an impact origin for the West Hawk Lake structure, Manitoba, Canada. Transactions - American Geophysical Union 48(1): 147

Semko Amanda J.; Cox Randel Tom, 2002: More field data from the Kilmichael Structure, Montgomery County, Mississippi. The Kilmichael Structure is a circular feature of unknown origin located in Paleocene and Eocene sediments of north central Mississippi. The structure, first identified around 1930, has been of interest to structural geologists, geophysicists and...

Semko Amanda J.; Cox Randel T., 2002: Long-axis orientation of breccia clasts at the Kilmichael Structure, Mississippi. The Kilmichael structure, first identified around 1930, is a roughly circular feature eight to ten kilometers in diameter located in north-central Mississippi. The structure deforms Paleocene and Eocene sediments and has been of great interest and...