TY - JOUR
T1 - Magnetic phases in hemo-ilmenite
T2 - Insight from low-velocity and high-field Mössbauer spectroscopy
AU - Frandsen, C.
AU - Mørup, S.
AU - McEnroe, S. A.
AU - Robinson, P.
AU - Langenhorst, F.
PY - 2007/4/16
Y1 - 2007/4/16
N2 - We have studied natural samples of hemo-ilmenite (ilmenite with hematite exsolution lamellae) by use of Mössbauer spectroscopy. The samples are from the Allard Lake intrusion in Quebec. The stoichiometric compositions of the ilmenite host and the hematite lamellae are approximately Fe2+0.84Mg2+ 0.14Ti4+ 0.98Fe3+ 0.04O3 and Fe2+ 0.17Mg2+0.01Ti4+ 0.18Fe3+1.64O3, respectively. From low-velocity Mössbauer measurements, the Fe2+ and Fe3+ components of the Fe2+ -substituted hematite and Fe3+ -substituted ilmenite, formed by incomplete exsolution of hematite and ilmenite, have been suggested identified. High-field Mössbauer measurements, obtained at low-temperature indicate the presence of a minor ferrimagnetic component.
AB - We have studied natural samples of hemo-ilmenite (ilmenite with hematite exsolution lamellae) by use of Mössbauer spectroscopy. The samples are from the Allard Lake intrusion in Quebec. The stoichiometric compositions of the ilmenite host and the hematite lamellae are approximately Fe2+0.84Mg2+ 0.14Ti4+ 0.98Fe3+ 0.04O3 and Fe2+ 0.17Mg2+0.01Ti4+ 0.18Fe3+1.64O3, respectively. From low-velocity Mössbauer measurements, the Fe2+ and Fe3+ components of the Fe2+ -substituted hematite and Fe3+ -substituted ilmenite, formed by incomplete exsolution of hematite and ilmenite, have been suggested identified. High-field Mössbauer measurements, obtained at low-temperature indicate the presence of a minor ferrimagnetic component.
UR - http://www.scopus.com/inward/record.url?scp=34250767794&partnerID=8YFLogxK
U2 - 10.1029/2006GL029063
DO - 10.1029/2006GL029063
M3 - Article
AN - SCOPUS:34250767794
SN - 0094-8276
VL - 34
SP - 1
EP - 5
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 7
M1 - L07306
ER -