CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
386 Turkey (Southeastern Turkey) 38.39.25 N -- 040.18.10 E Murdere Fe
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-04
   
Deposit name(s): Murdere
Political location(s): Turkey; Province or state: Southeastern Turkey
Deposit clan (type): Kiruna-type
Deposit (sub) types: Fe oxide subtype; Two stratabound massive magnetite lensesin metatuffs and metavolcanic rocks, tightly foldedabound northwest axis lunging norh; disseminated magnetite around massive lenses
Deposit status: undeveloped; Size category: 40 Mt ; Status comments: Murdere deposit and adjacent Miskel deposit to the west contain the principal iron resources of economic interest in the Avnik district, which are estimated at 104 Mt.
Geologic province: Eastern Taurus Fold Belt
Geologic subprovince: Taurus Mountains
Geologic district: Bitlis Massif
Commodities: Fe
Mineralization styles: massive magnetite lenses; disseminated magnetite around lenses; assimilated layers in Avnik granitoid
Geological ages: Early Paleozoic (host rocks)
Early Paleozoic (alteration)
Early Paleozoic (mineralization)
Tectonic setting: continental marginal orogenic belt-fold and thrust; convergent; Formal name: Taurus Mountain Fold Belt (host rocks)
Coincident features: lensoid stratiform deposit (folded tightly with the host volcanic sequence); Coincident feature name: host volcanic strata
Host rocks: (1) metamorphic; metavolcanic schist; Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: subaerial; Metamorphic grade: greenschist-amphibolite
External host rock forms:ash flow tuffs
flows
Host rock protoliths:unclassified volcanic rocks
Host rock stratigraphy:Lower Unit of Bitlis Massif

(2) intrusive; unclassified granitoid rocks (heterogeneous and strongly albitized); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: continental; Metamorphic grade: amphibolite
Host rock stratigraphy:Avnik granitoid
Related igneous rocks: (1) intrusive; granite suite (Homogeneous granite intrusive into heterogeneous Avnik granitoid); Initials: Yayla granite
Individual lithologies:granite
Country rocks: (1) intermediate volcanics; (predominant); Country rock name: unnamed; Metamorphic grade: greenschist-amphibolite
(2) felsic volcanics; (subordinate); Country rock name: unnamed; Metamorphic grade: greenschist-amphibolite
(3) tuffs; (subordinate); Country rock name: unnamed; Metamorphic grade: greenschist-amphibolite
(4) agglomerate; (subordinate); Country rock name: unnamed; Metamorphic grade: greenschist-amphibolite
Metallogenic signatures: Fe
apatite
Alteration signatures: chloritization: chlorite; What was altered: mafic silicates
albitization: albite; What was altered: Potash feldspar
Mineralogy: (alteration): chlorite, talc, epidote, allanite, calcite, hematite, ilmenite, rutile, matite, goethite, hydroxyapatite (hydroxyflorapatite)
(gangue): actinolite, feldspar, quartz, mica, diopside, hornblende, crossite, shene (titamite)
(mineralization): magnetite, apatite (fluorapatite)
Radiometric ages: Object dated: Host Rocks(1); Age - Ma: 454; +13; -13; Dating method: Rb-Sr; Concentrate: whole rock; Source rock: Intermediate to felsic volcanics; Formal name: Lower Unit of Avnik District; Event dated: host rock; Interpretive comment: Age consistent with the unconformity between the volcanic sequence and Upper Paleozoic strata; Reference: Helvaci, C.; Griffin, W. L., 1983: Rb-Sr Geochronology of the Bitlis Massif, Avnik (Bingöl) Area, S. E. Turkey; in Ophiolites and Oceanic Lithosphere, Edited by Gass, I. G.; Lippard, S. J.; Skelton, A. W., Special Publication, Geological Society of London, U. K., Blackwell Scientific Publications, 13, 413 p, p. 225 - 265

Object dated: Related igneous rocks(1); Age - Ma: 347; +52; -52; Dating method: Rb-Sr; Concentrate: whole rock; Source rock: granite; Formal name: Yayla granite; Event dated: mineralization; Interpretive comment: Age confirms homogeneous Yayla granite as younger than the heterogeneous Avnik granitoid; Reference: Helvaci, C.; Griffin, W. L., 1983: Rb-Sr Geochronology of the Bitlis Massif, Avnik (Bingöl) Area, S. E. Turkey; in Ophiolites and Oceanic Lithosphere, Edited by Gass, I. G.; Lippard, S. J.; Skelton, A. W., Special Publication, Geological Society of London, U. K., Blackwell Scientific Publications, 13, 413 p, p. 225 - 265
References:
Altinli, I. E., 1966
Geology of Eastern and Southeastern Anatolia, Part II
Turkey Mineral Research and Exploration Institute Bulletin, Volume 67, p. 1 - 22

Aykulu, A.; Evans, A. M., 1974
Structures in the Iranides of Southeastern Turkey
Geologische Rundshau, Volume 63, p. 292 - 305

Hall, R., 1976
Ophiolite Emplacement and the Evolution of the Taurus Suture Zone, Southeastern Turkey
Geological Society of America Bulletin, Volume 87, p. 1078 - 1088

Hall, R.; Mason, R., 1972
A Tectonic Mélange from the Eastrn Taurus Mountains, Turkey
Geological Society of London Journal, Volume 128, p. 395 - 398

Helvaci, C.; Griffin, W. l., 1983
Metamorphic Feldspathization of Metavolcanics and Granitoids, Avnik Area, Turkey
Contributions to Mineralogy and Petrology, Volume 83, p. 309 - 319

Helvaci, C.; Griffin, W. L., 1983
Rb-Sr Geochronology of the Bitlis Massif, Avnik (Bingöl) Area, S. E. Turkey
in Ophiolites and Oceanic Lithosphere, Edited by Gass, I. G.; Lippard, S. J.; Skelton, A. W., Special Publication, Geological Society of London, U. K., Blackwell Scientific Publications, 13, 413 p, p. 225 - 265

Helvaci, C., 1984
Apatite-Rich Iron Deposits of the Avnik (Bingöl) Region, Southeastern Turkey
Economic Geology, Volume 79, p. 354 - 371

Yilmaz, O., 1971
Etude Pétrographique et Géochronologique de la Région de Cacas
Ph. D. thesis (unpublished), Université Scientifique et Médical de Grenoble, France, 230 p.


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