TITLE:
The Shaytor Apatite-Magnetite Deposit in the Kashmar-Kerman Tectonic Zone (Central Iran): A Kiruna-Type Iron Deposit
AUTHORS:
Dariush Esmailiy, Saeid Zakizadeh, Fatemeh Sepidbar, Ali Kanaanian, Shojaaddin Niroomand
KEYWORDS:
Magnetite-Apatite, Shaytor Iron Deposit, Kashmar-Kerman Tectonic Zone
JOURNAL NAME:
Open Journal of Geology,
Vol.6 No.8,
August
25,
2016
ABSTRACT: The Shaytor apatite-rich iron deposit is located in the Kashmar-Kerman
tectonic zone in the central of the Iranian plat, which is an important
polymetallic belt in Iran. The ore bodies are interbedded with the upper
inferacaamberian calc-alkaline igneous rocks that show well-preserved
porphyritic and volcaniclastic textures. The iron ores have massive,
disseminated, and brecciated structures. Magnetite from the Shaytor deposit is
low in Ti (TiO2 = up to 0.70 wt.%) and different ore types show similar rare earth element (REE)
and trace element-normalized patterns with weak-to-moderate enrichment in light
REE and negative Eu anomalies, indicating a common source and genesis.
The similar REE patterns for the magnetite and volcanic basaltic host rocks
suggest their close genetic linkage and support a magmatic origin for the
deposit. The Shaytor deposit shows the
typical characteristics of Kiruna-type deposits with regard to the mineral
assemblages, ore texture and structure, and the apatite and magnetite
geochemistry. We propose that the Kiruna-type Shaytor apatite-rich iron deposit
was derived from Fe-P-rich melt through liquid immiscibility and the activity of
hydrothermal fluids.