Gravity and magnetic investigations of Meteor Crater, Arizona

Details Gravity and magnetic investigations of Meteor Crater, Arizona Gravity and magnetic investigations of Meteor Crater, Arizona

Feb 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80..776r&link_type=abstract

Journal of Geophysical Research, vol. 80, Feb. 10, 1975, p. 776-788.

Mathematics

Logic

6

Geological Surveys, Gravity Anomalies, Magnetic Measurement, Meteorite Craters, Arizona, Breccia, Computerized Simulation, Cross Sections, Data Reduction, Flux Density, Geophysics, Hypervelocity Impact, Impact Damage, Magnetic Flux, Mapping, Mathematical Models

Scientific paper

The residual gravity anomaly associated with Meteor Crater, Arizona, which attains a maximum negative amplitude of 0.6 mGal, is attributed to a breccia lens 225 m thick beneath the center of the apparent crater floor. The lens is in general radially symmetric with only minor irregularities, particularly in the southern half of the crater. No definitive evidence was found for a dense meteoritic body in the crater vicinity. The crater is surrounded by a negative gravity anomaly due to low-density rim debris, uplifted and fractured bedrock, and possibly an underlying fractured zone extending about one crater radius out from the rim crest and dipping into the crater. A magnetic minimum with a maximum negative amplitude of approximately 20 gamma is coincident with Meteor Crater. The most probable source of this anomaly is the alteration, by impact, of the remanent magnetization of the underlying formations, particularly the Supai, within and beneath the breccia lens.

Affiliated with

Also associated with

No associations

Rating

Gravity and magnetic investigations of Meteor Crater, Arizona does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravity and magnetic investigations of Meteor Crater, Arizona, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity and magnetic investigations of Meteor Crater, Arizona will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-999797