| Abstract: | Magnetic forward models of the Cement oil field, Oklahoma, were generated to assess the possibility that ferrimagnetic pyrrhotite related to hydrocarbon seepage in the upper 1 km of Permian strata contributes to aeromagnetic anomalies at Cement. Six bodies having different magnetizations were constructed for the magnetic models. Total magnetizations of the bodies of highest pyrrhotite content range from about 3 ?? 10-3 to 56 ?? 10-3 A/m in the present field direction and yield magnetic anomalies (at 120 m altitude) having amplitudes of less than 1 nT to ~6 to 7 nT, respectively. Numerous assumptions were made in the generation of the models, but nevertheless, the results suggest that pyrrhotite, formed via hydrocarbon reactions and within a range of concentrations estimated at Cement, is capable of causing magnetic anomalies. -from Authors |
| Genre: | Article |
| ProdID: | 70016172 |
| Citation Author: | Reynolds, R. L.; Webring, M.; Grauch, V. J. S.; Tuttle, M. |
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| Citation End Page: | 353 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geophysics |
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| Citation Number Of Pages: | 10 |
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| Citation Search Results Text: | Magnetic forward models of Cement oil field, Oklahoma, based on rock magnetic, geochemical, and petrologic constraints; 1990; Article; Journal; Geophysics; Reynolds, R. L.; Webring, M.; Grauch, V. J. S.; Tuttle, M. |
| Citation Start Page: | 344 |
| Citation Volume: | 55 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Magnetic forward models of Cement oil field, Oklahoma, based on rock magnetic, geochemical, and petrologic constraints; 1990; Article; Journal; Geophysics; Reynolds, R. L.; Webring, M.; Grauch, V. J. S.; Tuttle, M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
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