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کلیدواژهها
عنوان مقاله [English]
The Sangan Iron orc deposit is locatCd 2~R km 'IIUl1 caSI of
Ma ~ hhad . The magnetilc ore hotly is 4.2km long and :� to Jt)(J meter witle.
The mlnerahl.allon is hos lcd hy carhonate of upper Juras!'>ic-iowcr
Crctat:cClu .... Magncllte and a:-.suciaH;d mlnera" MC analYl.ctl hy elcctron
mlcro'cope. The Ti. Mn. Ni, Cr. P and Mg cnnlcnt of magnetitc arc very lnw.
The MgO con tent of magnctJlc in Dartlway, Baghian :md C- north i:-. hctwcen
1 to .!'I pcrcent. Parage n c~j!; of magnclilc III A tlcpu:-.it Me .1Otlrllditc,
hcdcnhcrgi lc , ca ld le , and a rare amphibole such a .... Icrru - paragasitic
hornhlcndc. in the A, Band C t1eposit:-. arc rcrro - acl innlitc, calcilc ami
Fe-rich chlorite such as ripitlolite, in Dartlway dcpnsil :HC phlogopile,
siderite and garnet and for 8aghain deposit arc dolomite, phlogopite and
cinchlorc. Thc ICmperaturc of fo rmation of A deposit wa:. higher than 400
ha,cd on Ihc m;ncr:t1ugy and Ihc inlrUSI;vc rock!'>. The temperature of
formation of B deposit were calculated JO() ba<;ed on the composition o f
chlori te. The Fe-rich magmatic fluid a~ociated with the quartz monzonite
(ou tcrop at A' ) was reacted with the dolomitic limcsHmc and formed the
magnclitc ska rn. Ch lorine rich amphibole may i ndica te that iron were carried
as chlorine compicxC1> In the fluid.
کلیدواژهها [English]
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