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| Detailed Reference Information |
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Aubourg, C., Bakhtari, H. and Rochette, P. (1996). Anisotropy of magnetic susceptibility of magnetically oriented rock powders. Geophysical Research Letters 23: doi: 10.1029/96GL01789. issn: 0094-8276. |
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To estimate the maximum magnetic anisotropy of the ensemble of magnetic carriers present in a rock, we measured the Anisotropy of Magnetic low field Susceptibility (AMS) of magnetically oriented rock powder. We studied basaltic rock (Chai¿ne des Puys, Massif Central France) and metasediments (Coffs Harbour, Australia). In the basaltic powder, PSD titanomagnetites show maximum anisotropy of L≈1.16. In the metasediments, the foliation anisotropy is constant (F≈1.3) controlled by iron-bearing phyllosilicates. The linear anisotropy goes up to L≈2 in pyrrhotite bearing rocks. In contrast, magnetite bearing samples show low linear anisotropy (L<1.1). ¿ American Geophysical Union 1996 To estimate the maximum magnetic anisotropy of the ensemble of magnetic carriers present in a rock, we measured the Anisotropy of Magnetic low field Susceptibility (AMS) of magnetically oriented rock powder. We studied basaltic rock (Chai¿ne des Puys, Massif Central France) and metasediments (Coffs Harbour, Australia). In the basaltic powder, PSD titanomagnetites show maximum anisotropy of L≈1.16. In the metasediments, the foliation anisotropy is constant (F≈1.3) controlled by iron-bearing phyllosilicates. The linear anisotropy goes up to L≈2 in pyrrhotite bearing rocks. In contrast, magnetite bearing samples show low linear anisotropy (L<1.1). ¿ American Geophysical Union 1996 |
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Abstract |
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Abstract |
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Basaltic Rock Powder |
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Metasediments |
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Keywords
Geomagnetism and Paleomagnetism, Rock and mineral magnetism |
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Publisher
American Geophysical Union
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