New combination of techniques for determination of the ultrafine structure of magnetic minerals

Abstract

Research Article| December 01, 1975 New combination of techniques for determination of the ultrafine structure of magnetic minerals Richard P. Hoblitt; Richard P. Hoblitt 1Department of Geological Sciences, University of Colorado and Cooperative Institute for Research in Environmental Sciences, University of Colorado/National Oceanic and Atmospheric Administration, Boulder, Colorado 80302 Search for other works by this author on: GSW Google Scholar Edwin E. Larson Edwin E. Larson 1Department of Geological Sciences, University of Colorado and Cooperative Institute for Research in Environmental Sciences, University of Colorado/National Oceanic and Atmospheric Administration, Boulder, Colorado 80302 Search for other works by this author on: GSW Google Scholar Author and Article Information Richard P. Hoblitt 1Department of Geological Sciences, University of Colorado and Cooperative Institute for Research in Environmental Sciences, University of Colorado/National Oceanic and Atmospheric Administration, Boulder, Colorado 80302 Edwin E. Larson 1Department of Geological Sciences, University of Colorado and Cooperative Institute for Research in Environmental Sciences, University of Colorado/National Oceanic and Atmospheric Administration, Boulder, Colorado 80302 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1975) 3 (12): 723–726. https://doi.org/10.1130/0091-7613(1975)3<723:NCOTFD>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Richard P. Hoblitt, Edwin E. Larson; New combination of techniques for determination of the ultrafine structure of magnetic minerals. Geology 1975;; 3 (12): 723–726. doi: https://doi.org/10.1130/0091-7613(1975)3<723:NCOTFD>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Correlation of the petrographic and magnetic properties of the magnetic minerals contained in rocks is least ambiguous when both properties are determined on the same individual mineral grain. Petrographic properties of grains and structures at least as small as 0.05 μm can be obtained from a combination of conventional and modem techniques, including reflected-light microscopy, scanning-electron microscopy, x-ray energy spectrometry, x-ray diffraction analysis, and etching techniques. Our initial results indicate that naturally occurring magnetite commonly contains a rich variety of submicroscopic inclusions and structures, heretofore unobserved, which probably have considerable effect on the magnetic properties of their hosts. After petrographic characterization, the magnetic properties of the individual grain can be determined by the use of vibrating sample and small-reentrant cryogenic magnetometers, an A.F. demagnetization unit, and a sensitive Curie balance system. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.