Genetic Modeling Of The Şamli (Balıkesir) Iron Deposit

Download
index.pdf
2012
Yılmazer, Erkan
Show full item record
187
views
474
downloads
Şamlı Fe-oxide (+Cu±Au) deposit is hosted by Şamlı pluton and rocks of Karakaya Complex in western Anatolia. The pluton consists of both mafic and felsic phases showing magma mixing textures. 40Ar/39Ar geochronology yielded an age range of 23.2±0.5 to 22.42±0.11 Ma for the Şamlı pluton, overlapping with 40Ar/39Ar age of 22.33±0.59 Ma and U-Pb age of 23.34±0.19 Ma from alterations. Sr-Nd isotope data are suggestive of a metasomatized subcontinental lithospheric mantle (SCLM) source for the magma. Alteration-mineralization pattern is defined by a series of overlapping halos characterized by sodic-calcic (plagioclase-pyroxene±scapolite), calcic (garnet-pyroxene±epidote), potassic (biotite+magnetite+chalcopyrite), hematite-limonite, and late stage (chalcedony-calcite+native Cu) alterations. Stable (δ18O, δ34S) and radiogenic (87Sr/86Sr,143Nd/144Nd) isotope compositions suggest a magmatic source for the fluids responsible for alteration-mineralization. Given the spatial-temporal association of alteration- mineralization with magmatic rocks, the hydrothermal system that controls mineralization in Şamlı appears to be linked with emplacement and cooling of Şamlı pluton. Şamlı Fe-oxide (+Cu±Au) deposit has features characteristic for both skarn- and Iron-Oxide-Copper-Gold (IOCG) type deposits. The spatial and temporal association with a porphyritic intrusion, widespread calc-silicate assemblage, metal content (abundant Fe-oxide with high copper content) are similar to calcic Fe-Cu skarns, whereas low-Ti (≤0.05% TiO2) magnetite/hematite, low-S sulfides (chalcopyrite>pyrite), high Cu (up to 6.78%) and moderate Au (up to 8.82 ppm) grades, local structural control in alteration-mineralization, and the derivation of the causative magma from a SCLM resembles the features pertinent to IOCG type mineralization. Therefore, Şamlı deposit is defined as a skarn type Fe-Cu mineralization with a potential for IOCG type deposit.
Geology.
http://etd.lib.metu.edu.tr/upload/12614270/index.pdf
https://hdl.handle.net/11511/21486
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Geochemistry and petrogenesis of the oceanic island and subduction-related assemblages from the palaeotethyan Karakaya subduction/accretion complex, central and nw Turkey
Sayıt, Kaan; Göncüoğlu, Mehmet Cemal; Department of Geological Engineering (2010)
The Nilüfer Unit of the Karakaya Complex at the pre-Liassic basement of the Sakarya Composite Terrane is composed mainly of metabasaltic lithologies with limestones, and minor cherts and mudstones. These metabasic assemblages show OIB- and E-MORB-type geochemical signatures with variable enrichment in the most incompatible elements relative to N-MORB. The Eymir Unit consists of variably deformed metaclastics, and constitutes the matrix in which the Nilüfer-type blocks are embedded. In the Ankara region, the...
Modeling of mogan and eymir lakes aquifer system
Yağbasan, Özlem; Yazıcıgil, Hasan; Department of Geological Engineering (2007)
Mogan and Eymir Lakes, located 20 km south of Ankara, are important aesthetic, recreational, and ecological resources. Dikilitaş and İkizce reservoirs, constructed on upstream surface waters, are two man-made structures in the basin encompassing an area of 985 km2. The purpose of this study is (1) to quantify groundwater components in lakes’ budgets, (2) to assess the potential impacts of upstream reservoirs on lake levels, and (3) to determine effects of potential climatic change on lakes and groundwater l...
Post miocene deformation of the area between Alibey (Kızılcahamam) and Karalar (Kazan) villages, nw Ankara (Turkey)
Karaca, Aykut; Rojay, Fuat Bora; Department of Geological Engineering (2004)
The study area is located within the Neogene-Quaternary sequences on top of the Mesozoic accreted mass at the northwest of Kazan (40 km NW of Ankara) between Karalar and Alibey villages. The research deals with the post-Miocene deformational history of an area situated at the southern edge of Galatian Volcanic Province. Two main Neogene rock sequences are cropped out; 1) Late Miocene Pazar Formation, 2) Plio-Quaternary Sinap Formation. The Pazar Formation has a succession composed mainly of clastics at the ...
The Upper Cretaceous intrusive rocks with extensive crustal contribution in Hacimahmutusagi Area (Aksaray/Turkey)
Köksal, Serhat (Central Library of the Slovak Academy of Sciences, 2019-06-01)
The Hacimahmutusagi area (Aksaray/Turkey) is located in the western part of the Central Anatolian Crystalline Complex (CACC). Gneiss and marble compose the basement units, while intrusive rocks are gabbros and granitoids. The pegmatitic hornblende gabbros contain pegmatitic to fine-grained hornblendes, plagioclase, clinopyroxene, and accessory opaque minerals. The fine-grained gabbros, on the other hand, are composed of plagioclase, hornblende, and biotite as major components whereas the apatite and opaque ...
Tectonomagmatic evolution of bimodal plutons in the central Anatolian crystalline complex, Turkey
Kadioglu, Yk; Dilek, Y; Güleç, Nilgün Türkan; Foland, Ka (University of Chicago Press, 2003-11-01)
The NW-trending Agacoren Intrusive Suite (AIS) on the east side of the Salt Lake (Tuz Golu), Turkey, is part of a curvilinear volcanoplutonic complex along the western edge of the central Anatolian crystalline complex (CACC). Granitoids constitute the predominant lithological group within the AIS and range in composition from monzonite through granite to alkali feldspar granite. Gabbroic rocks occur as irregular intrusive bodies with sinusoidal, irregular contacts with the granitoid plutons and vary from di...
Citation Formats
E. Yılmazer, “Genetic Modeling Of The Şamli (Balıkesir) Iron Deposit,” Ph.D. - Doctoral Program, Middle East Technical University, 2012.
METU IIS - Integrated Information Service open@metu.edu.tr