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Mineralogical and ore petrographic comparison of Gedabey and Gadir deposits in Gedabey region (Western Azerbaijan)

Authors:
  • Konya Technical University Faculty of Engineering and Natural Sciences
  • Konya Tehnical University
C.İsmayıl et al. / ANAS Transactions, Earth Sciences 2 / 2020, 49-60; DOI: 10.33677/ggianas20200200046
49
ANAS Transactions Earth Sciences 2 / 2020
Geology and geophysics
http://www.journalesgia.com
MINERALOGICAL AND ORE PETROGRAPHIC COMPARISON OF GEDABEY
AND GADIR DEPOSITS IN GEDABEY REGION (WESTERN AZERBAIJAN)
İsmayıl C.1 , Arık F.2 , Özen Y.3
1Konya Technical University, Ph.D. student of Geological Engineering Department
Ardychly quarter, Rauf Orbay str., Selchuklu district, Konya, Turkey,
42250: cosqun.ismayil1993@gmail.com;
2Konya Technical University, Prof.Dr. Head of Geological Engineering Department
Ardychly quarter, Rauf Orbay str., Selchuklu district, Konya, Turkey, 42250;
3Konya Technical University, Dr. of Geological Engineering Department
Ardychly quarter, Rauf Orbay str., Selchuklu district, Konya, Turkey, 42250
Keywords: Porphyry-
epithermal, Au-Ag-Cu-Pb-
Zn deposit, Gadir, Gedabey,
Lesser Caucasus
Summary. Gedabey (Western Azerbaijan) mine province is located in the Lesser Caucasus re-
gion of Tethys metallogenic belt, which is one of the most important metallogenic provinces of the
world. Mineralization occurred in the subduction zone within the Lok-Karabakh structural-
formation zone of the Lesser Caucasus. The Gedabey ore province is one of the main producing
mining of the Gedabey ore district in Azerbaijan and is the largest porphyry-epithermal ore zone of
the country. Volcanic rocks and the Gedabey intrusive, which indurated these volcanic rocks, play
an important role in the formation of mineralizations in the region. According to previous studies
the volcanic rocks containing rhyolite and rhyodacite in the Gedabey ore region are Bajocian age,
andesite tuffs and andesite dacites are Bathonian age, diorite and granodiorite within Gedabey in-
trusive are Upper Jurassic Lower Cretaceous age. The magmatism of the Gedabey ore region is
divided into 3 stages: Bajocian stage, Bathonian stage and Upper Jurassic stage. The Gedabey-
Bittibulag fracture is the most important deeper fault in the region, which ore-controls both the
Gedabey Au-Ag-Cu and the Gadir Au-Ag-Cu-Pb-Zn deposits within the Gedabey region.This
study aims to compare the mineralogical-petrographical features and hydrothermal alteration zones
of Gedabey Au-Ag-Cu and Gadir Au-Ag-Cu-Pb-Zn deposits by means of petrography, ore petrog-
raphy and X-ray diffraction methods. Chalcopyrite, sphalerite, galena, pyrite, gold, covellite, mal-
achite, azurite were commonly observed in these mineralizations.
© 2020 Earth Science Division, Azerbaijan National Academy of Sciences. All rights reserved.
1. INTRODUCTION
Gedabey ore district which is one of the world's
major gold and copper ore districts in the Lesser
Caucasus is located in the Tethys Metallogenic Belt
extending to Turkey from Pakistan, Iran, Azerbaijan
and Georgia (Fig. 1).The processing of copper ores
is being carried out in numerous ancient copper
mines such as Gedabey, Allahverdi, Shamlık,
Mishana, Zangazur and Shanardara regions in Azer-
baijan. The mining activities in Gedabey ore district
started 2000 years ago, and the Ottoman and Azer-
baijani Khanates handled the rich copper occurrenc-
es by changing hands after the first settlers (Singer et
al., 2008).
The Gedabey Au-Ag-Cu and Gadir Au-Ag-Cu-
Pb-Zn deposits are located around the axis of the
Shamkir anticlinorium in the western part of the
Dashkesan synclinorium in the Lok-Aghdam region
of the Lesser Caucasus (Veliyev et al., 2018; İsmayıl
et al., 2018). The Gedabey Au-Ag-Cu deposit is
commonly observed in the east, northeast and south-
eastern slopes of the Misdağ Mountain. The Gadir
Au-Ag-Cu-Pb-Zn deposit located in Yoğundağ epi-
thermal system in the south of Gedabey ore district
was discovered by Gedabey Exploration Group
(GEG) and geological consultant Allahverdi
Agakishiyev in 2012. The Gadir Au-Ag-Cu-Pb-Zn
deposit is located approximately 370 m from Geda-
bey Au-Ag-Cu deposit.
Geology and geophysics
50
Fig. 1. Porphyry-epithermal deposits in Tethyan Metallogenic Belt (modified from
https://www.angloasianmining.com/operations/overview/)
Yoğundağ Mountain is a porphyry-epithermal
zone, with known deposits in the area (e.g.Gadir,
Gedabey, Umid and Zefer) believed to represent the
upper portion of the mineralizing system. The Gadir
and Gedabey ore deposits are located within the large
Gedabey-Garadag volcanic-plutonic system. This
volcanic-plutonic system is characterised by a com-
plex internal structure indicative of repeated tectonic
movement and multi-cyclic activity (Bayramov,
2015; İsmayıl, 2019; Anglo Asian Mining PLC,
2019).The province is very complex due to the tec-
tonic structure of the Gedabey region and the Shamkir
anticline (Babazadeh et al., 2015). Gedabey Au-Ag-
Cu and Gadir Au-Ag-Cu-Pb-Zn mineralizations are
structurally controlled. The ore deposits of the Geda-
bey district are controlled by a deep-seated, ~NS ori-
ented, orogen-transverse arc-shaped fault (Баба-заде
и др., 1990). The Gadir and Gedabey ore body, which
has a complex geological structure, contains intrusive
rocks of different ages and compositions. Three sets
of regional fault zones controlling mineralization
have been identified and are characterised on the ba-
sis of strike direction and morphological characteris-
tics: 1NW-SE striking faults (e.g. Gedabey-
Bittibulag Deep Fault, Misdag Fault), 2 NE-trending
faults (e.g. Gedabey-Ertepe Fault, Gerger-Arykhdam
Fault, Gadir ore-controlling faults), 3 local trans-
verse faults (Bayramov, 2015; İsmayıl, 2019; Anglo
Asian Mining PLC, 2019).
The magmatic activities in the region have been
occurred in Bajocian-Bathonian (Middle Jurassic) and
Early Cretaceous (Fig. 2; Bayramov, 2015). In the
Gedabey district the plutonic rocks consist of Upper
Jurassic Lower Cretaceous aged gabbro, gabbro-
norite, diorite, granodiorite, and quartz-diorite; volcan-
ic rocks contain Bajocian and Bathonian aged andesite,
andesite lava, andesite porphyry, rhyolite and rhy-
odacitic volcanic rocks (Керимов, 1963; İsmayıl,
2019). In addition, alluvial sediments on the Gedabey
Au-Ag-Cu deposit and silicification on the Gadir min-
eralization are observed (Veliyev et al., 2018).The de-
posits are genetically related with Gedabey intrusion
(its quartz-diorite phase; Bayramov, 2016).
Late Jurassic Early Cretaceous was dated for
Gedabey diorite, granodiorite and subsidiary aplites
(K-Ar; from 129-142 Ma to 150 Ma; Исмет и др.,
2003), and 144±1 Ma for quartz-diorite (U-Pb; Late
Jurassic-Early Cretaceous; Садыхов и др., 2018). The
Gedаbey Au-Ag-Cu deposit is commonly observed in
the east, northeast and southeastern slopes of the Mis-
dağ Mountain. The Gadir Au-Ag-Cu-Pb-Zn deposit is
in the east of Yoğundağ Mountain, near Gedabey Au-
Ag-Cu±Zn deposit. The mineralizations are represent-
ed by the quartz-porphyry body localized between sub-
horizontal andesite at the west and a diorite intrusion at
the east. The quartz-porphyry intrusive rocks host gold
mineralization in Gedabey and Gadir deposits (Novru-
zov et al., 2019). The Gadir mineralization was con-
C.İsmayıl et al. / ANAS Transactions, Earth Sciences 2 / 2020, 49-60; DOI: 10.33677/ggianas20200200046
51
trolled by NW-SE faults. The faulting occurred in con-
tact between the andesitic tuff and quartz porphyry. Au
in the Gadir deposit is mainly hosted by intrusive bod-
ies dominated by quartz porphyry. The host rocks were
commonly altered by propylitic alteration, primarily in
andesitic tuff (Novruzov et al., 2019). The Gedabey
Au-Ag-Cu deposit occurred in the quartz porphyry
which was formed at the contact of the Middle Jurassic
andesitic rocks and the Lower Cretaceous granitoid
(granodiorite-diorite).
This study aims to investigate and compare
mineralogical-petrographical characteristics and hy-
drothermal alteration zones of Gedabey Au-Ag-Cu
and Gadir Au-Ag-Cu-Pb-Zn deposits by means of
petrography, ore petrography and X-ray diffraction
methods.
Fig. 2. The geological map of Gedabey ore district (modified from Bayramov, 2015)
Geology and geophysics
52
2. MATERIAL AND METHOD
The field studies were realized, and outcrop and
drill core samples (ore, wall rock, hydrothermal al-
teration samples) were collected from Gedabey and
Gadir deposits in Gedabey ore district (Fig. 3).
Polished sections were prepared in the Seljuk
University SÜKOP Gemstone Atelier for the deter-
mination of mineralogical and petrographic proper-
ties of the collected samples (Fig. 4a,b). Thin sec-
tions were prepared in the Pamukkale University
Laboratory (Fig. 4c,d). Thin sections and polished
sections were examined under Leica DM2700P mi-
croscope in Geological Engineering Department in
Konya Technical University (Fig. 3 and Fig. 4). In
order to carry out more detailed mineralogical re-
search of the samples, XRD analyzes were per-
formed in the mineralogical and petrographic re-
search laboratory of the General Directorate Mineral
Research and Exploration (MTA).
3. RESULT
3.1. Gedabey Au-Ag-Cu deposit
According to petrographical and mineralogical
analyses of the samples, potassic, phyllic, advance
argillic and propylitic alterations were determined in
the Gedabey Au-Ag-Cu deposit. The Gedabey Au-
Ag-Cu mineralization occurred in the quartz
porphyry which was formed at the contact of the
andesitic rocks and granitoid. The hydrothermal al-
terations associated with Gedabey Au-Ag-Cu miner-
alization are phyllic and advanced argillic altera-
tions.
3.1.1.Petrography
Plagioclase, biotite, amphibole, chlorite, quartz,
and opaque minerals were observed in diorite of the
Gedabey granitoid (Fig. 5d). Andesite is composed of
amphibole, plagioclase, chlorite, and pyrite (Fig. 5b).
Potassic alteration sample collected from drill core is
composed of K-feldspar, biotite, and quartz. Sericite,
pyrite, quartz and barite were observed in the phyllic
alteration (Fig. 5a,c). Kaolinite, alunite, pyrophyllite,
barite, quartz, sericite, pyrite were identified in ad-
vanced argillic alteration. Propylitic alteration com-
posed of chlorite, epidote, calcite, pyriteand quartz.
Fig. 3. (a) Open pit and (c) hand sample from Gedabey Au-Ag-Cu deposit, (b)Pyrite (py), chalcopyrite (cpy)
and quartz (qz) in underground mining, (d) hand sample from Gadir Au-Ag-Cu-Pb-Zn deposit
C.İsmayıl et al. / ANAS Transactions, Earth Sciences 2 / 2020, 49-60; DOI: 10.33677/ggianas20200200046
53
Fig. 4. Polished sections (a,b) and thin sections (c,d) from collected samples
Fig. 1. (a-b) Sericite (ser), pyrite (py), barite (bar), quartz (qz) observed in petrographic studies of phyllic
alteration, and (c) amphibole (amp) and plagioclase (plg) in andesite, and (d) amphibole (amp), plagio-
clase (plg) and quartz in diorite in Gedabey Au-Ag-Cu deposit (a,c,d: +N, b: //N)
Geology and geophysics
54
3.1.2. Ore petrography
In the Gedabey Au-Ag-Cu mineralization chal-
copyrite, sphalerite, galena, pyrite, magnetite, hema-
tite, bornite, molybdenite and enargite were deter-
mined by ore microscopy studies as the main ore
minerals. Covellite, chalcocite, malachite, goethite,
limonite were identified as secondary ore minerals
(Fig. 6). The gangue minerals are quartz, calcite and
barite in Gedabey Au-Ag-Cu mineralization.
Fig. 6.Chalcopyrite (cpy), molybdenite (mo), sphalerite (sph), galena (gn), pyrite (py), covellite (cv), quartz
(qz) in Gedabey Au-Ag-Cu deposit; a,c,e,g: //N, b,d,f,h: +N)
C.İsmayıl et al. / ANAS Transactions, Earth Sciences 2 / 2020, 49-60; DOI: 10.33677/ggianas20200200046
55
3.1.3. X-Ray Diffraction
Chalcopyrite, pyrite, sphalerite, magnetite, chlo-
rite, K-feldspar, sericite, sodalite, wurtzite, plumbo-
tellurite, kaolinite, alunite, illite, siderite, phlogopite,
quartz and epidote were determined by XRD analy-
sis of samples collected from Gedabey ore deposit.
Sericite, pyrite and quartz were identified in the
phyllic alteration (Fig. 7a). Kaolinite, illite, barite,
quartz, sericite, pyrite were determined in advanced
argillic alteration.
Fig. 7. X-Ray diffractograms of Gedabey Au-Ag-Cu mineralization
Geology and geophysics
56
3.2. Gadir Au-Ag-Cu-Pb-Zn deposit
The Gadir mineralization occurred in contact of
the andesitic tuff and quartz porphyry. The hydro-
thermal alterations associated with mineralization
are quartz±adularia±sericite and propylitic altera-
tions.
3.2.1. Petrography
In petrography studies of andesite collected
from field studies in Gadir Au-Ag-Cu-Pb-Zn depos-
it, plagioclase, amphibole, pyroxene, muscovite,
hematite, epidote, calcite, sericite, clay minerals and
opaque minerals were observed. Amphibole, plagio-
clase, chlorite were observed in petrographic studies
of andesite and andesitic tuff in Gadir Au-Ag-Cu-
Pb-Zn deposit (Fig.8).
3.2.2. Ore petrography
In ore microscopy studies of Gadir Au-Ag-Cu-
Pb-Zn mineralization, the main ore minerals were
chalcopyrite, sphalerite, galena, arsenopyrite, pyrite,
hessite and native gold. Sphalerite and chalcopyrite
is replaced by galena in some polished sections
(Fig.9e,f). Chalcopyrite is observed as inclusion in
sphalerite and galena (Fig. 9c,d,e).
3.2.3. X-Ray diffraction
According to the XRD analyses from Gadir
Au-Ag-Cu-Pb-Zn mineralization, AuAgTe4, tetrahe-
drite, cordierite, jasper, titanomagnetite, augite,
chamosite, muscovite, hematite, epidote, chlorite,
sericite, pyrite, sphalerite, galena, magnetite, barite
and wurtzite were identified (Fig. 10). Chamosite,
epidote, calcite, quartz, sericite, and hematite were
defined from propylitic alteration.
CONCLUSION
Gadir deposit located in the east of Yoğundağ
Mountain and Gedabey deposit located in the north-
east and southeastern slopes of the Misdağ Mountain
are located in the large Gedabey-Garadag volcanic-
plutonic system characterised by a complex internal
structure indicative of repeated tectonic movement
and multi-cyclic activity. The Gedabey and Gadir
deposits are controlled by ~NS oriented regional
fault zones controlling mineralizations.
Fig. 8. (a,b) Epidote (ep), chlorite (chl), quartz (qz) in propylitic alteration, (c) adularia (ad) and sericite (ser) (d) amphibole (amp),
plagioclase (plg), and chlorite (chl) mineral observed in petrographic studies of andesite and andesitic tuff in Gadir Au-Ag-Cu-Pb-Zn
deposit (a,b: +N; b,d: //N)
C.İsmayıl et al. / ANAS Transactions, Earth Sciences 2 / 2020, 49-60; DOI: 10.33677/ggianas20200200046
57
Fig. 9. Pyrite (py), chalcopyrite (cpy), galena (gn), sphalerite (sph), quartz (qz), gangue (g) in GadirAu-Ag-Cu-Pb-Zn mineralization
(a,c,e: //N; b,d,f: +N)
The Gedabey Au-Ag-Cu deposit occurred in the
quartz porphyry formed at the contact of the andesit-
ic rocks and granitoid. The Gadir Au-Ag-Cu-Pb-Zn
deposit occurred in the contact of the andesitic tuff
and quartz porphyry. Chalcopyrite, sphalerite, gale-
na, pyrite, magnetite, hematite, bornite, molybdenite,
enargite, covellite, chalcocite, malachite, goethite,
limonite, quartz, calcite, and barite were determined
in the Gedabey Au-Ag-Cu mineralization. Also
chalcopyrite, sphalerite, galena, arsenopyrite, tetra-
hedrite and pyrite were observed in the Gadir Au-
Ag-Cu-Pb-Zn mineralization. While gold and silver
occured as native gold, electrum, petzite and hessite
associated with copper mineralization in Gedabey
deposit, native gold and hessite were observed in
Gadir deposit. The same hydrothermal alteration
zones and similar mineral assemblage were identi-
fied in both ore deposit. Potassic alteration repre-
sented by biotite, K-feldspar, quartz was observed in
drill core samples taken from deep horizons of Ged-
abey Au-Cu deposit. The phyllic alteration is repre-
sented by sericite, pyrite and quartz in the region,
Geology and geophysics
58
Figure 10. X-Ray diffractograms of Gadir Au-Ag-Cu-Pb-Zn mineralization
C.İsmayıl et al. / ANAS Transactions, Earth Sciences 2 / 2020, 49-60; DOI: 10.33677/ggianas20200200046
59
and also phyllic alteration and advanced argillic al-
teration are defined as the main ore bearing zones
for Gedabey Au-Ag-Cu deposit. The advanced argil-
lic alteration minerals were determined as kaolinite,
alunite, illite, pyrophyllite, and smectite in the Ged-
abey region. On the other hand, propylitic alteration
represented by epidote and chlorite isclearly ob-
served in the both deposits. Gadir Au-Ag-Cu-Pb-Zn
mineralization associated with propylitic alteration
and quartz±adularia±sericite veins. Additionally,
silicification was observed in Gadir mineralization.
Enargite and molybdenite are observed in Gedabey
Au-Ag-Cu mineralization, although they are not ob-
served in Gadir mineralization. The main factor of
epithermal deposit for Gadir deposit is a
quartz±adularia±sericite vein type mineralization
Also, the main factors of high-sulfidation epithermal
system for the Gedabey Au-Ag-Cu deposit are vug-
gy quartz, enargite and advanced argillic alterations.
The mineralizations are mineralogically similar to
each other except for a few features mentioned.
While the mineral assemblages in the Gedabey min-
eralization suggest a high sulfidation, in Gadir min-
eralization an epithermal ore deposit associated
with a porphyry system. However, fluid inclusion
analyzes that will have recently completed will lead
to a more accurate suggestion.
Acknowledgements
The authors thank to Seljuk University for fi-
nancial support of master thesis project (project
number: 18201084) and anonymous reviewers for
helpful comments.
REFERENCES
Anglo Asian Mining PLC. Ore Reserves Report Gadir Underground
Mine. Anglo Asian Mining PLC Report. London, 2019, pp. 11-
17, https://www.angloasianmining.com/operations/overview/.
Baba-zade V.M., Mahmudov A.I., Ramazanov V.G. Copper and
molybdenum porphyry deposits. Azerneshr. Baku, 1990,
375 p. (in Russian).
Babazadeh V., Veliyev A., Abdullayeva Sh.F., Imamverdiyev N.,
Mammedov S., Ibrahimov J., Bayramov A. New pers-
pective gadir mineralization field in gеdabey ore region.
The Reports of National Academy of Sciences of
Azerbaijan, 2015, Vol. LXXI, No 2, Baku, 2015, 8 p.
Bayramov A.A. Petrology and potential mineralization of
Gedabek intrusion. Master Thesis, Baku State University,
2015, 75 p. (in Azerbaijani).
Bayramov A.A. Geological setting of the new discovering Gadir
low sulfidation epithermal deposit, Gedabek ore district,
Lesser Caucasus, Azerbaijan. IJISET - International Journal
of Innovative Science, Engineering & Technology, Vol. 4,
2016, 12 p.
İsmayıl C. Investigation of the geological, mineralogical,
petrographical and geochemical properties of the Gedabek
(West Azerbaıjan) Au-Cu deposıt. The Graduate School of
Natural And Applied Science of Selçuk Unıversıty. Master
Thesis, Konya, 2019, 92 p.
İsmayıl C., Arık F.,Özen Y. Preliminary geological and
mineralogical features of Gedabek (Western Azerbaijan)
Au-Cu deposit. Engineering Sciences Journal of Omer
Halisdemir University,Vol. 7, 2018, pp. 1153-1158.
İsmet A.R., Hasanov R.K., Abdullaev I.A., Bagirbekova O.D.,
Jafarova R.S., Jafarov S.A. Radiogeochronological study of
geological formations of Azerbaijan. Nafta Press. Baku,
2003, 191 p. (in Russian).
Kerimov G.I. The mineralization and petrology of Gedabek ore
cluster. Azerbaijan AS Publishing. Baku, 1963, 211 p. (in
Russian).
Novruzov N., Valiyev V., Bayramov A., Mammadov S.,
Ibrahimov J., Ebdulrehimli A. Mineral composition and
paragenesis of altered and mineralized zones in the Gadir
low sulfidation epithermal deposit (Lesser Caucasus,
Azerbaijan). Iranian Journal of Earth Sciences, Vol. 11, No.
1, 2019, pp. 14-29.
Sadıkhov E.A., Veliev A.A., Bayramov A.A., Mamedov S.M.,
Ibragimov D.R. Isotope geochemical characteristics (Sm-
Nd, Rb-Sr, S) and U-Pb SHRIMP II age of the Gedabek
ЛИТЕРАТУРА
Anglo Asian Mining PLC. Ore Reserves Report Gadir Underground
Mine. Anglo Asian Mining PLC Report. London, 2019, pp. 11-
17, https://www.angloasianmining.com/operations/overview/.
Babazadeh V., Veliyev A., Abdullayeva Sh.F., Imamverdiyev N.,
Mammedov S., Ibrahimov J., Bayramov A.New perspective
gadir mineralization field in gеdabey ore region. The
Reports of National Academy of Sciences of Azerbaijan,
2015, Vol. LXXI, No 2, Baku, 2015, 8 p.
Bayramov A.A. Geological setting of the new discovering Gadir
low sulfidation epithermal deposit, Gedabek ore district,
Lesser Caucasus, Azerbaijan. IJISET - International Journal
of Innovative Science, Engineering & Technology, Vol. 4,
2016, 12 p.
İsmayıl C. Investigation of the geological, mineralogical,
petrographical and geochemical properties of the Gedabek
(West Azerbaıjan) Au-Cu deposıt. The Graduate School of
Natural And Applied Science of Selçuk Unıversıty. Master
Thesis, Konya, 2019, 92 p.
İsmayıl C., Arık F., Özen Y. Preliminary geological and
mineralogical features of Gedabek (Western Azerbaijan)
Au-Cu deposit. Engineering Sciences Journal of Omer
Halisdemir University, Vol. 7, 2018, pp. 1153-1158.
Novruzov N., Valiyev V., Bayramov A., Mammadov S.,
Ibrahimov J., Ebdulrehimli A. Mineral composition and
paragenesis of altered and mineralized zones in the Gadir
low sulfidation epithermal deposit (Lesser Caucasus,
Azerbaijan). Iranian Journal of Earth Sciences, Vol. 11, No.
1, 2019, pp. 14-29.
Singer D.A., Berger V.I., Moring B.C. Porphyry copper
deposits of the World: Database and grade and tonnage
models. U.S. Geological Survey Open-File Report 2008-
1155, 2008, 45 p.
Veliyev A., Bayramov A., Ibrahimov J., Mammadov S.,
Alizhadeh G. Geological setting and ore perspective of the
new discovered Gadir low sulfidation epithermal deposit,
Gedabek NW flank, Lesser Caucasus, Azerbaijan.
Universal Journal of Geoscience, Vol. 6, No. 3, 2018,
pp.78-101.
Bayramov A.A. Gədəbəy intruzivinin petrologiyası potensial
filizləşməsiş Magistr dissertasiyası. Bakı Dövkət
Universiteti , 2015, 75 s.
Баба-заде В.М., Махмудов А.И., Рамазанов В.Г. Медно- и
молибден-порфировые месторождения. Азернешр. Ба-
ку, 1990, 375 c.
Geology and geophysics
60
intrusive (Azerbaijan). Regional Geology and Metallogeny,
No.76, 2018, pp. 83-94 (in Russian).
Singer D.A., Berger V.I., Moring B.C. Porphyry copper deposits
of the World: Database and grade and tonnage models. U.S.
Geological Survey Open-File Report 2008-1155, 2008, 45 p.
Veliyev A., Bayramov A., Ibrahimov J., Mammadov S.,
Alizhadeh G. Geological setting and ore perspective of the
new discovered Gadir low sulfidation epithermal deposit,
Gedabek NW flank, Lesser Caucasus, Azerbaijan.
Universal Journal of Geoscience, Vol. 6, No. 3, 2018, pp.
78-101.
Исмет А.Р., Гасанов Р.К., Абдуллаев И.А., Багирбекова
О.Д., Джафарова Р.С., Джафаров С.А. Радиогеохроно-
логические исследования геологических формаций
Азербайджана. Nafta Press. Баку, 2003, 191 с.
Керимов Г.И. Петрология и рудоносность Кедабекского
рудного узла. Изд. АН Азерб. ССР. Баку,1963, 211 с.
Садыхов А.Р., Велиев А.А., Байрамов А.А., Мамедов С.М.,
Ибрагимов Д.Р. Изотопно-геохимические характери-
стики (Sm-Nd, Rb-Sr, S) и U-Pb SHRIMP II возраст Ге-
дабекского интрузива (Азербайджан). Региональная
геология и металлогения, No. 76, 2018, c. 83-94.
МИНЕРАЛОГИЧЕСКОЕ И РУДНО-ПЕТРОГРАФИЧЕСКОЕ СРАВНЕНИЕ ГЕДАБЕЙСКОГО И ГАДИРСКОГО
МЕТОРОЖДЕНИЙ ГЕДАБЕЙСКОГО РАЙОНА (ЗАПАДНЫЙ АЗЕРБАЙДЖАН)
Исмаил Дж1., Арик Ф2., Озен Е.3
1Технический университет Коньи, диссертант факультета инженерной геологии
42250, Турция, Конья, район Сельджуклу, ул.Рауфа Орбай, квартал Ардычлы: cosqun.ismayil1993@gmail.com
2Технический университет Коньи, профессор, доктор, декан факультета инженерной геологии
42250, Турция, Конья, район Сельджуклу, ул.Рауфа Орбай, квартал Ардычлы
3Технический университет Коньи, доктор факультета инженерной геологии
42250, Турция, Конья, район Сельджуклу, ул.Рауфа Орбай, квартал Ардычлы
Резюме. Гедабейская рудная зона (Западный Азербайджан) расположена на Малом Кавказе. Рудообразование происхо-
дило в субдукционной зоне Лок-Гарабахской структурно-формационной зоны Тетического металлогенического пояса. Ге-
дабейская рудная провинция является крупнейшим порфирово-эпитермальным рудным районом в стране. Вулканические
породы и Гедабейский интрузив, под влиянием которого уплотнены вулканические породы, играют важную роль в процес-
се оруденения данного региона. Согласно предыдущим исследованиям вулканические породы Гедабейского рудного регио-
на с содержанием риолита и риодацита относятся к байосскому возрасту, андезитовые туфы и андезитовые дациты – к бат-
скому, а диориты и гранодиориты Гедабейского интрузива представляют верхнеюрский и нижнемеловой периоды. Магма-
тизм Гедабейского рудного региона делится на три стадии: байоский, батский и верхнеюрский. Гедабейско-Биттибулагский
глубинный разлом является самым важным, а также рудоконтролирующим фактором как Гедабейского Au-Ag-Cu, так и
Гадирского Au-Ag-Cu-Pb-Zn месторождений в данном регионе. Целью данного исследования является сравнение минерало-
го-петрографических особенностей Гедабейского Au-Ag-Cu и Гадирского Au-Ag-Cu-Pb-Zn месторождений с помощью пет-
рографического, рудно-петрографического и рентген-дифрактометрического методов анализа. В рудах отмечаются xалько-
пирит, сфалерит, галенит, пирит, золото, ковеллин, малахит, азурит и другие минералы.
Ключевые слова: Порфиро-эпитермальный, Au-Ag-Cu-Pb-Zn руда, Гадир, Гедабей, Малый Кавказ
GƏDƏBƏY RAYONUNDA GƏDƏBƏY VƏ QƏDIR YATAQLARININ MINERALOJI
VƏ FILIZ PETROQRAFIK TƏRKIBI (QƏRBI AZƏRBAYCAN)
İsmayıl C1, Arık F2,Özen Y3.
1Konya Texniki Universiteti,Geoloji Mühəndislik Şöbəsinin tələbəsi
42250, Türkiyə, Konya, Selçuklu rayonu, Rauf Orbay küç., Ardıçlı məhəlləsi: cosqun.ismayil1993@gmail.com;
2Konya Texniki Universiteti,Geoloji Mühəndislik Şöbəsinin rəhbəri, Professor, Doktor
42250, Türkiyə, Konya, Selçuklu rayonu, Rauf Orbay küç., Ardıçlı məhəlləsi;
3Konya Texniki Universiteti,Geoloji Mühəndislik Şöbəsinin Doktoru
42250, Türkiyə, Konya, Selçuklu rayonu, Rauf Orbay küç., Ardıçlı məhəlləsi
lasə. Gədəbəy (Qərbi Azərbaycan) filizləşmə zonası Kiçik Qafqaz bölgəsində yerləşir. Filizləşmə Tetis metallogenik kəməri-
nin Lök-Qarabağ struktur-formasiya zonası içərisində subduksiya zonasında əmələ gəlmişdir. Gədəbəy Azərbaycanın ən böyük por-
fir-epitermal filizləşmə sahəsi hesab olunur. Region haqqında bu nə qədər çox sayda fərqli tədqiqatçılar tərəfindən araşdırmalar
aparılmışdır. Bölgədə Orta və Üst Yura yaşlı xurlar geniş yayılmışdır. Regiondafilizləşmələrin əmələ gəlməsində vulkanik -
xurların Gədəbəy intruzivinin önəmli rolu var. Əvvəlki tədqiqatlara əsasən Gədəbəy filiz rayonunda riolit və riodasit tərkibli
vulkanik süxurlar Bayos yaşlı, andezit tufları və andezit dasitlər Bat yaşlı, Gədəbəy intruzivindəki diorit və qranodioritlər Üst Yura-
Alt Təbaşir yaşlı olduğu qeyd olunmuşdur. Gədəbəy filiz rayonunda magmatizm 3 etapa aylır: Bayos, Bat və Üst Yura mərtəbələ-
ri. Gədəbəy rayonunda həm Gədəbəy Au-Ag-Cu yatağının, m də Qədir Au-Ag-Cu-Pb-Zn yatağının filizənəzarət faktoru Gədə-
bəy-Bittibulaq dərinlik yarılmadır. Bu araşdırmanın qsədi Gədəbəy Au-Ag-Cu və Qədir Au-Ag-Cu-Pb-Zn yataqlanın minera-
loji-petroqrafik xüsusiyətlərini və hidrotermal dəyişilmə zonalanı petroqrafik, filiz- petroqrafik və XRD metodu ilə açıqlamaqdır.
Filizlərdə ərisində xalkopirit, sfalerit, qalenit, pirit, qızıl, kovellin, malaxit, azurit və başqa minerallar qeyd edilmişdir.
Açar sözlər: Porfir-Epitermal, Au-Ag-Cu-Pb-Zn yatağı, Qədir, Gədəbəy, Kiçik Qafqaz
... The Tethyan Metallogenic Belt extending from southeast Europe through Anatolia to Lesser Caucasus and Iran show the subduction and/or collision (Fig. 1;Şengör and Yılmaz 1981;Okay and Tüysüz 1999;Sosson et al. 2010;Rolland et al. 2012;Moritz and Baker 2019). The Tethyan Metallogenic Belt is host to several types of deposits such as massive sulfide, porphyry Cu-(Mo) and epithermal Au deposits (Özen 2012;Özen and Arık 2013;Hedjazi and Monhemius 2014;Özen and Arık 2015;Rabayrol et al. 2016;Özen and Arık 2019;Vural 2019;İsmayıl et al. 2020;İsmayıl et al. 2021). The mineral deposits in the region are associated with two different geodynamic evolutions which is defined that started with magmatic arc formation because of a Mesozoic collision throughout the Eurasian margin and continued with Cenozoic subduction-related after the Mesozoic collision (e.g., Mederer et al. 2014;Moritz et al. 2016a;Moritz et al. 2017). ...
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The Gadir Au-Ag-Cu-Pb-Zn deposit, located in the western part of Azerbaijan, was extensively occurred in quartz porphyry, and rarely in the contact of the hornfelsed andesite and quartz porphyry. The hydrothermal alterations associated with mineralization are quartz-adularia±sericite and propylitic alterations. The Gadir deposit is mainly composed of native gold, hessite, chalcopyrite, sphalerite, galena, pyrite, minor arsenopyrite, marcasite, digenite, barite, and adularia. The Gadir deposit is mainly composed of Au, Ag, Cu, Pb, and Zn which maximum quantities are 10.3 ppm, 1133 ppm, 23780 ppm, 59811 ppm, and 424770 ppm, respectively. The δ34SH2S values (−2.2 to 4.4 ‰) of sulfides (chalcopyrite, pyrite, and sphalerite) from the Gadir Au-Ag-Cu-Pb-Zn deposit indicate a magmatic origin for the ore-forming fluids. The geological, mineralogical, geochemical, and isotopic data for Gadir deposit suggest an epithermal deposit associated with the porphyry system.
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In this study, it was aimed to investigate the geological and mineralogical properties of Gedabek (West Azerbaijan) gold-copper deposit, which is one of the most important gold copper deposits of Azerbaijan, in the northwest of Gedabek and 50 km west of Ganja (West Azerbaijan). Gedabek gold-copper deposit, extending from Pakistan, Iran, Azerbaijan, Georgia to Turkey, the world's major gold and one of the copper province Tethyan Tectonic Belt located and is known as one of the ancient areas of the copper engraving Lesser Caucasus in the Azerbaijan section of is located at. In the region, especially in Gedabek, numerous antique copper mines such as Alaverdi, Şamlık, Mishana, Zengezur and Şenerdere are undergoing re-processing for copper mining. Middle and Upper Jurassic sediments which are complicated by magmatic rocks and fractures of different ages and compositions in the region. Due to the tectonic structure of the Gedabek deposit and the tectonic structure of the Semkir anticline, the magmatic activity in the region has also occurred in three stages: Bajocian, Batonian and Late Jurassic. The Gedabek Au-Cu deposit, observed in the biggest porphyry-epithermal ore field of Azerbaijan, were occurred in the quartz porphyry which was formed in the contact of the Middle Jurassic andesitic rocks and the Upper Jurassic-Lower Cretaceous granitoid (granodiorite-diorite). The main ore minerals are chalcopyrite, sphalerite, galena, arsenopyrite, bornite, pyrite, covellite, chalcocite, native gold, silver, kaolinite, barite, and iron hydroxides. Keywords: Gold, copper, mineralogy, Azerbaijan, Gedabek
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Gadir deposit is located in the East of Yogundag, near Gedabek deposit, also, Shamkir uplift of the Lok-Karabakh structural-formation zone in the Lesser Caucasus Mega-anticlinorium of Azerbaijan. The deposit has complicated geological structure, and consists of different age and different composite intrusive bulks and fracture structure consisted of complicated with Middle and Upper Jurassic sediments. A structural position of Yogundag area (also, Gadir) predetermined a set of magmatic complexes and a character of magmatism occurrence for Gedabek-Bittibulag deeper fault direction as a whole including the investigated area where are widely developed a set of volcano-pluton formations and volcanism of central character. Gadir was first suggested as a low sulfidation epithermal deposit type by Gedabek Exploration Geologists (2014) following field work and geological interpretation. The Gadir deposit is belong to Pb-Zn-Cu-Ag-Au vein deposit which is characteristic to Low Sulfidation epithermal deposit. The main ore minerals are sulfides. Sulfides consist of pyrite, sphalerite, galena, and trace amounts of chalcopyrite.
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  • V M Baba-Zade
  • A I Mahmudov
  • V G Ramazanov
Baba-zade V.M., Mahmudov A.I., Ramazanov V.G. Copper and molybdenum porphyry deposits. Azerneshr. Baku, 1990, 375 p. (in Russian).
New perspective gadir mineralization field in gеdabey ore region
  • V Babazadeh
  • A Veliyev
  • F Abdullayeva Sh
  • N Imamverdiyev
  • S Mammedov
  • J Ibrahimov
  • A Bayramov
Babazadeh V., Veliyev A., Abdullayeva Sh.F., Imamverdiyev N., Mammedov S., Ibrahimov J., Bayramov A.New perspective gadir mineralization field in gеdabey ore region. The Reports of National Academy of Sciences of Azerbaijan, 2015, Vol. LXXI, No 2, Baku, 2015, 8 p.
Petrology and potential mineralization of Gedabek intrusion
  • A A Bayramov
Bayramov A.A. Petrology and potential mineralization of Gedabek intrusion. Master Thesis, Baku State University, 2015, 75 p. (in Azerbaijani).
Radiogeochronological study of geological formations of Azerbaijan
  • A R İsmet
  • R K Hasanov
  • I A Abdullaev
  • O D Bagirbekova
  • R S Jafarova
  • S A Jafarov
İsmet A.R., Hasanov R.K., Abdullaev I.A., Bagirbekova O.D., Jafarova R.S., Jafarov S.A. Radiogeochronological study of geological formations of Azerbaijan. Nafta Press. Baku, 2003, 191 p. (in Russian).
The mineralization and petrology of Gedabek ore cluster
  • G I Kerimov
Kerimov G.I. The mineralization and petrology of Gedabek ore cluster. Azerbaijan AS Publishing. Baku, 1963, 211 p. (in Russian).
Isotope geochemical characteristics (Sm-Nd, Rb-Sr, S) and U-Pb SHRIMP II age of the Gedabek ЛИТЕРАТУРА
  • E A Sadıkhov
  • A A Veliev
  • A A Bayramov
  • S M Mamedov
  • D R Ibragimov
Sadıkhov E.A., Veliev A.A., Bayramov A.A., Mamedov S.M., Ibragimov D.R. Isotope geochemical characteristics (Sm-Nd, Rb-Sr, S) and U-Pb SHRIMP II age of the Gedabek ЛИТЕРАТУРА
Gədəbəy intruzivinin petrologiyası və potensial filizləşməsiş Magistr dissertasiyası
  • A A Bayramov
Bayramov A.A. Gədəbəy intruzivinin petrologiyası və potensial filizləşməsiş Magistr dissertasiyası. Bakı Dövkət Universiteti, 2015, 75 s.