Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

Rocognition of Vanadium Titanomagnetite Origin by SEM and EPMA in Ataieh ,Southwest of Mashhad

Document Type : Original Research Paper

Authors
Behzad Hajalilou 1
M. Razmara 2
Nasim Hajalilou 3
1 Associate Professor, Department of Geology, Payam Noor University, Iran
2 Associate Professor, Department of Geology, Ferdowsi Mashhad University, Mashhad, Iran
3 M.Sc., Department of Geology, Shahid Beheshti University, Tehran, Iran
10.22071/gsj.2018.96076.1237
Abstract
The placer ore deposit of Ataeieh is located in south west of Mashhad and central Iranian microplate. The petrography and mineralography studies of VTM placer ore deposit, showed that the main ores in this area from high to low amounts are: magnetite, titanomagnetite, hematite and ilmenite. It revealed that the ultramafic and gabbros are the main source for opak minerals by mineralography Studies. The SEM-EDS, EPMA and XRM studies on the placer ore deposit and their origion presentaded remarkable results. The SEM investigation showed that, in the magma crystallization the solid soulution is formed between titanomagnetite and ilmenite at 800°C and then with the decreasing of temperature up to 600°C the ilmenite and magnetite exsolution lamella segreqates and separated from titanomagnetite phase either the ophiolite sequence is the source of this deposit. Titaniumand Vanadium enter to the ilmenite and titanomagnetite in gabbroic rocks whit continuing of magma crystallization. The EPMA analysis on gabbroic units showed that these rocks are origion for Ti and V in placers.
Keywords
VTM
Vanadium- bearing titanomagnetite
SEM
EPMA
Ataeieh

Subjects

References
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Scientific Quarterly Journal of Geosciences
Volume 31, Issue 2 - Serial Number 120
Volume 31, Issue 2, Serial Number 120, Summer 2021
Summer 2021
Pages 53-64