Impact induced porosity of terrestrial impact craters : a gravity study of Meteor Crater.

In this project we gathered and interpreted gravity anomaly data at Meteor Crater, and we used these data to constrain the porosity variations across Meteor Crater that were induced by the crater-forming impact event. We performed a gravity survey at the crater and merged these new data with legacy gravity survey data. From the resulting merged gravity data set, we generated a reduced anomaly map and created a model to estimate the gravitational effects of several stratigraphic units across Meteor Crater. Finally, we used a Bayesian inversion scheme to infer the bulk density and porosity of each stratigraphic unit. The models reflect the creation of impact-induced porosity of ~5-10% around and beneath the crater, supporting previous findings with novel methods and data.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Masters

Grantor

Baylor University.

Year dc:date.issued

2022

Author dc:creator

• Mitchell, Christopher D., 1995-

Advisor dc:contributor.advisor

• James, Peter Benjamin.

• Meteor Crater.
• Gravity.
• Geophysics.
• Planetary science.
• Geology.
• Models.
• Bayesian inversion.
• Fracture.
• Porosity.
• Impact.

Statement dc:rights

• Baylor University works are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. Contact libraryquestions@baylor.edu for inquiries about permission.

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/2104/12364

OAI identifier oai:identifier

oai:baylor-ir.tdl.org:2104/12364