REE geochemical characteristics of titanium-rich bauxites: the Permian Kanigorgeh horizon, NW Iran
نویسندگان
چکیده
منابع مشابه
Petrological and geodynamical constraints of Chaldoran basaltic rocks, NW of Iran: evidence from geochemical characteristics
Chaldoran area in NW of Iran has Mesozoic oceanic crust basement. The studied rocks of this region can be divided into three groups: ophiolitic gabbros and pillow lavas, ophiolitic volcanoclastics and Eocene lava flows. Ophiolitic mafic rocks show continental volcanic arc natures and Eocene lava flow shows OIB-like nature. During the Mesozoic,the Chaldoran region was situated in the active cont...
متن کاملMineralogical and Geochemical characteristics of "Khezr-Abad pluton" NW of Taft, Iran.
Khezr-Abad pluton is cropped out in North-West of Taft. This granitoid seems to be younger than the surrounding metamorphosed rocks, particularly the lower cretaceous limestones and probably is implaced during Oligo-Miocene. The most volumetric abundances of the igneous rocks are: granodiorite, granite, quartzmonzo-diorite, quartz-diorite, and in a lesser amount tonalite, quartz-syenite and ...
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Geochemical characteristics of diff erent iron ore types from the Southern Tomašica deposit , Ljubija , NW Bosnia
Pulverized limonite ore from a Pleistocene–Quaternary lake deposit and compact limonite ore from the Olistostrome member of the Javorik fl ysch formation, in the Southern Tomašica iron ore deposit, were investigated and compared with different types of siderite and ankerite, limestone and carbonate shale from the same location in order to determine their possible protolith. Two limonite types d...
متن کاملMineralogy and REE geochemistry of argillic alteration zone of the Asbkhan area in northwest of Heris, NW Iran
Intrusion of granodioritic and quartz-dioritic igneous bodies of the Oligocene age into andesitic rocks with the Eocene age resulted in occurrence of widespread argillic alteration zone in the Asbkhan area of Heris (East Azerbaijan Province, NW Iran). A significant portion of this system formed the argillic alteration zone. Based on mineralogical examinations, kaolinite, quartz, smectite, aluni...
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ژورنال
عنوان ژورنال: TURKISH JOURNAL OF EARTH SCIENCES
سال: 2014
ISSN: 1300-0985,1303-619X
DOI: 10.3906/yer-1404-11