TY - JOUR
T1 - Josephinite
T2 - Crystal structures and phase relations of the metals
AU - Bassett, William A.
AU - Bird, John M.
AU - Weathers, Maura S.
AU - Kohlstedt, D. L.
PY - 1980
Y1 - 1980
N2 - Josephinite, a complex, metal-bearing rock from the region of the Josephine Peridotite in southwest Oregon, contains FeNiCo metal alloy phases having exsolution textures. Scanning and transmission electron microscopy have revealed Widmanstaetten patterns in which the lamellae are polysynthetically twinned, ordered, face-centered-cubic FeNi3 surrounded by untwinned, ordered, face-centered-cubic FeNi3 and body-centered-cubic FeCo. These exsolution textures require a temperature in excess of 500°C for their formation. This is consistent with a mantle derivation of josephinite prior to obduction of the peridotite in one of the Klamath ophiolites.
AB - Josephinite, a complex, metal-bearing rock from the region of the Josephine Peridotite in southwest Oregon, contains FeNiCo metal alloy phases having exsolution textures. Scanning and transmission electron microscopy have revealed Widmanstaetten patterns in which the lamellae are polysynthetically twinned, ordered, face-centered-cubic FeNi3 surrounded by untwinned, ordered, face-centered-cubic FeNi3 and body-centered-cubic FeCo. These exsolution textures require a temperature in excess of 500°C for their formation. This is consistent with a mantle derivation of josephinite prior to obduction of the peridotite in one of the Klamath ophiolites.
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U2 - 10.1016/0031-9201(80)90121-1
DO - 10.1016/0031-9201(80)90121-1
M3 - Article
AN - SCOPUS:84971575456
SN - 0031-9201
VL - 23
SP - 255
EP - 261
JO - Physics of the Earth and Planetary Interiors
JF - Physics of the Earth and Planetary Interiors
IS - 4
ER -