Microfracturing in relation to atomic structure of plagioclase from a deformed meta-anorthosite
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doi: 10.1016/0191-8141(84)90067-1 |
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| Authors: | Brown, William L.; Macaudière, Jean |
| Author Affiliations: | Primary: Univ. Nancy, Lab. Petrol.-Geochim., Vandoeuvre-les-Nancy, France Other: E.N.S.G., Lab. Petrol., France |
| Volume Title: | Journal of Structural Geology |
| Source: | Journal of Structural Geology, 6(5), p.579-586. Publisher: Pergamon, Oxford-New York, International. ISSN: 0191-8141 |
| Publication Date: | 1984 |
| Note: | In English; illus. |
| Summary: | Analysis of Caledonian brittle deformation of the Harris meta-anorthosite and of experimentally shocked microcline and other deformed feldspars reveals that the orientation of micro-fractures always lies close to the cleavage directions. Unusual fracture orientations are also found to correspond with less common (experimentally shock-induced) cleavage directions. This analysis suggests that plagioclase fracture occurs along the deformation bands parallel to dislocation glide planes. [M.E.J.] |
| Subjects: | Alkali feldspar; Caledonian Orogeny; Cracks; Crystal dislocations; Deformation; Ductility; Feldspar group; Field studies; Fractures; Framework silicates; Meta-anorthosite; Metaigneous rocks; Metamorphic rocks; Microcline; Microcracks; Mylonites; Paleoproterozoic; Paleozoic; Plagioclase; Precambrian; Proterozoic; Pseudotachylite; Silicates; Structural analysis; Structural geology; Style; Undulatory extinction; Upper Precambrian; Europe; Great Britain; Scotland; United Kingdom; Western Europe; Deformation bands; Harris Meta-anorthosite; Intracrystalline fractures; Mechanical twinning; Shear fractures; Slip planes; Transcrystalline fractures |
| Coordinates: | N544000 N610000 W0004500 W0083000 |
| Abstract Numbers: | 85M/2380 |
| Record ID: | 1985013875 |
| Copyright Information: | GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom |
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