Drilling-induced remanence in carbonate rocks: occurrence, stability and grain-size dependence
dc.contributor.author | Jackson, Michael C. | en_US |
dc.contributor.author | Voo, Rob Van der | en_US |
dc.date.accessioned | 2010-06-01T19:18:58Z | |
dc.date.available | 2010-06-01T19:18:58Z | |
dc.date.issued | 1985-04 | en_US |
dc.identifier.citation | Jackson, Mike; Voo, Rob (1985). "Drilling-induced remanence in carbonate rocks: occurrence, stability and grain-size dependence." Geophysical Journal of the Royal Astronomical Society 81(1): 75-87. <http://hdl.handle.net/2027.42/72460> | en_US |
dc.identifier.issn | 0016-8009 | en_US |
dc.identifier.issn | 1365-246X | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/72460 | |
dc.description.abstract | A strong grouping of the directions of natural remanent magnetization in a collection of Ordovician limestones and dolomites, prior to correction for the in situ orientation of the samples, led us to suspect the presence of a substantial spurious magnetization acquired during sample collection and preparation. A close correspondence between the directions of the remanence vectors and the direction of the ambient magnetic field during sawing and drilling of the samples suggested that the remanence was dominated by a component acquired during cutting of the samples. Ten specimens of the Camp Nelson Limestone and Shakopee Dolomite were demagnetized to 100 mT, given an anhysteretic remanence along their axes, and then sawed again. A substantial magnetization parallel to the ambient field during cutting was acquired by all of the specimens, and the resultant directions deviated by 7-70d from the direction of the anhysteretic magnetization. Stepwise alternating-field and thermal cleaning to 60 mT and 400dC respectively failed to remove preferentially the cutting-induced magnetic contamination. Since the fraction of magnetite grains cut during drilling and sawing must be a linear function of grain size, modified Lowrie-Fuller tests were carried out and the results are interpreted to indicate the presence of a multidomain magnetite fraction in the Shakopee Dolomite, Camp Nelson Limestone and Oregon Dolomite. Ratios of initial to anhysteretic susceptibility ( X / X ARM) correlate well with the angular deviation of magnetic directions produced by sawing. This indicates that acquisition of drilling-induced remanence is a function of magnetite grain size, compatible with the notion that the drilling-induced component resides in large magnetite grains which have been cut. | en_US |
dc.format.extent | 682036 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 1985 Royal Astronomical Society | en_US |
dc.title | Drilling-induced remanence in carbonate rocks: occurrence, stability and grain-size dependence | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Astronomy | en_US |
dc.subject.hlbsecondlevel | Geology and Earth Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063, USA | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/72460/1/j.1365-246X.1985.tb01351.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-246X.1985.tb01351.x | en_US |
dc.identifier.source | Geophysical Journal of the Royal Astronomical Society | en_US |
dc.identifier.citedreference | Banerjee, S.K., King, J. & Marvin, J., 1981. A rapid method for magnetic granulometry with applications to environmental studies, Geophys. Res. Lett., 8, 333 – 336. | en_US |
dc.identifier.citedreference | Burmester, R.F., 1977. Origin and stability of drilling induced remanence, Geophys. J. R. astr. Soc., 48, 1 – 14. | en_US |
dc.identifier.citedreference | Dever, G., 1980. High carbonate and low silica stone in the High Bridge Group (Middle Ordovician), Fayette County, central Kentucky, Ky. geol. Surv. Ser. XI Inf. Circ. 4.. | en_US |
dc.identifier.citedreference | Dunlop, D., 1972. Magnetic mineralogy of heated and unheated red sediments by coercivity spectrum analysis, Geophys. J. R. astr. Soc., 27, 37 – 55. | en_US |
dc.identifier.citedreference | Dunlop, D., 1983. Determination of domain structure in igneous rocks by alternating field and other methods, Earth planet. Sci. Lett., 63, 353 – 367. | en_US |
dc.identifier.citedreference | Evans, M. E. & McElhinny, M., 1969. An investigation of the origin of stable remanence in magnetite-bearing igneous rocks, J. Geomagn. Geoelect., 21, 757 – 773. | en_US |
dc.identifier.citedreference | Halls, H., 1976. A least-squares method to find a remanence direction from converging remagnetization circles, Geophys. J. R. astr. Soc., 45, 297 – 304. | en_US |
dc.identifier.citedreference | Jackson, M. & Van der Voo, R., 1985. A Lower Ordovician paleomagnetic pole from the Oneota Dolomite, Upper Mississippi River Valley, J. geophys. Res., submitted. | en_US |
dc.identifier.citedreference | Johnson, H. P., Lowrie, W. & Kent, D., 1975. Stability of anhysteretic remanent magnetization in fine and coarse magnetite and maghemite particles, Geophys. J. R. astr. Soc., 41, 1 – 10. | en_US |
dc.identifier.citedreference | King, J., Banerjee, S. K., Marvin, J. & Ozdemir, O., 1982. A comparison of different methods for determining the relative grain size of magnetite in natural sediments: some results from lake sediments, Earth planet. Sci. Lett., 59, 404 – 419. | en_US |
dc.identifier.citedreference | Lowrie, W. & Heller, F., 1982. Magnetic properties of marine limestones, Rev. Geophys. Space Phys., 20, 171 – 192. | en_US |
dc.identifier.citedreference | McElhinny, M., 1964. Statistical significance of the fold test in paleomagnetism, Geophys. J. R. astr. Soc., 8, 338 – 340. | en_US |
dc.identifier.citedreference | Stacey, F. & Banerjee, S. K., 1974. The Physical Principles of Rock Magnetism, Elsevier, Amsterdam. | en_US |
dc.identifier.citedreference | Stauffer, C. R., 1950. The high-magnesium dolomites and dolomitic limestones of Minnesota, Minn. geol. Surv. Summary Rep., 4, 29 pp. | en_US |
dc.identifier.citedreference | Zijderveld, J. D. A., 1967. AC demagnetization of rocks: analysis of results, in Methods of Paleomagnetism, pp. 254 – 286, eds Collinson, D. W., Creer, K. M. & Runcorn, S. K., Elsevier, New York. | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.