Araştırma Makalesi
Sulfur and Lead Isotopic Compositions of the Akgüney (Ordu) Cu-Pb-Zn Deposit in the Black Sea Region, Turkey
Öz
The Akgüney Cu-Pb-Zn deposit is a vein type hydrothermal Cu-Pb-Zn deposit in the Black Sea Region of Turkey. This deposit
is hosted by Upper Cretaceous andesitic rocks. The deposit consists of seven veins with varying thicknesses in the investigated
area. The primary mineral paragenesis includes pyrite, galena, chalcopyrite, sphalerite, fahlore, quartz and calcite.
The δ34S values of sulfide minerals (pyrite, chalcopyrite, sphalerite and galena) range from -0.63 ‰ to 3.02 ‰, with an average
of 1.22 ‰. These δ34S values and the calculated δ34SH2S values for H2
S dissolved in hydrothermal fluids are suggesting a homogeneous
magmatic source.
The galena samples have 206Pb/204Pb ratios from 18.533 to 18.745, 207Pb/204Pb ratios from 15.633 to 15.657 and 208Pb/204Pb ratios
from 38.710 to 38.772. These values suggest an orogenic source for lead.
is hosted by Upper Cretaceous andesitic rocks. The deposit consists of seven veins with varying thicknesses in the investigated
area. The primary mineral paragenesis includes pyrite, galena, chalcopyrite, sphalerite, fahlore, quartz and calcite.
The δ34S values of sulfide minerals (pyrite, chalcopyrite, sphalerite and galena) range from -0.63 ‰ to 3.02 ‰, with an average
of 1.22 ‰. These δ34S values and the calculated δ34SH2S values for H2
S dissolved in hydrothermal fluids are suggesting a homogeneous
magmatic source.
The galena samples have 206Pb/204Pb ratios from 18.533 to 18.745, 207Pb/204Pb ratios from 15.633 to 15.657 and 208Pb/204Pb ratios
from 38.710 to 38.772. These values suggest an orogenic source for lead.
Anahtar Kelimeler
Akgüney deposit Cu-Pb-Zn Eastern Black Sea region lead isotope sulfur isotope
Kaynakça
- Akıncı, T.Ö., 1985. The Eastern Pontide volcano-sedimentary belt and associated massive sulfide deposits. İn: Dixon JE, Robertson AHF, editors. The Geological Evolution of the Eastern Mediterranean. Special Publication of the Geological Society 17. Oxford: Blackwell.
- Demir, Y., Uysal, İ., Sadıklar, M.B., Ceriani, A., Hanilçi, N. and Müller, D., 2015. Mineralogy, mineral chemistry, fluid inclusion, and stable isotope investigations of the Kabadüz ore veins, Ordu, NE-Turkey. Ore Geology Reviews, 66, 82-98.
- Eyüboğlu, Y., Santosh, M., Yi, K., Tüysüz, N., Korkmaz, S., Akaryalı, E., Dudas, F.O. and Bektas, O., 2014. The Eastern Black Seatype volcanogenic massive sulfide deposits: Geochemistry, zircon U–Pb geochronology and an overview of the geodynamics of ore genesis. Ore Geology Reviews, 59, 29-54.
- Gökce, A., 1990. Sulfur isotope study of Cu-Zn-Pb deposits of the Kurşunlu (Ortakent-Koy
- Gökce, A. and Bozkaya, G., 2006. Lead and sulfur isotope evidence for the origin of the Inler Yaylası lead-zinc deposits, Northern Turkey. Journal Asian Earth Science, 26, 91-97.
- Grassineau, N.V., Mattey, D.P. and Lowry, D., 2001. Sulfur isotope analysis of sulfide and sulfate minerals by continuous flow-isotope ratio mass spectrometry. Analytical Chemistry, 73, 220-225.
- Köse, M., 1987. Geological investigation of the Pb – Zn – Cu veins Akgüney – Kabadüz (Ordu) area. M.Sc, KTÜ, Trabzon, Turkey
- Okay, A.I., 1996. Granulite facies gneisses from the Pulur Region, Eastern Pontides. Turkish Journal of Earth Sciences, 5, 55–61.
- Okay, A.I. and Şahintürk, Ö., 1997. Geology of the Eastern Pontides. In: Robinson, A. (Ed.), Regional and Petroleum Geology of the Black Sea and Surrounding Regions. AAPG Memoir, 68, 291–311.
- Stacey, J.S. and Kramers, J.D., 1975. Approximation of the terrestrial lead isotope evolution by a two-stage model. Earth and Planetary Science Letters, 26, 207-221.
- Steinmann, M., and Emerson, C., 2001, Technical reports on the geology, reserves and drilling program of the North Turkey Project:Zamanti, Zamanti Mining Company, 15 p (unpublished).
- Terlemez, İ. and Yılmaz, A., 1980. Stratigraphy of the area between Ünye-Ordu-Koyulhisar-Reşadiye. Bulletin of the Geological Society of Turkey 23, 179-191.
- Ünal, E., Gökce, A. and Harris, C., 2009. Microthermometric and O- and H-isotope characteristics of the mineralizing fluid in the Akgüney copper–lead–zinc deposit, NE Turkey. International Geology Review, 51, 375-387.
- Woodhead, J.D. and Hergt, J.M., 1997. Application of “double spike” technique to Pb –isotope geochronology. Chemical Geology, 138, 311-321
- Yılmaz, Y., Tüysüz, O., Yiğitbaş, E., Genç, Ş.C. and Şengör, A.M.C.,1997. Geology and tectonic evolution of the Pontides, in Robinson, A.G., ed., Regional and petroleum geology of the Black Sea and surrounding region: AAPG Memoir, 68, 183–226.
- Zartman, R.E. and Haines, S.M., 1988. The Plumbotectonic model for Pb isotopic systematics among major terrestrial reservoirs—a case for bidirectional transport. Geochemica et Cosmochimica Acta, 52, 1327–1339
Toplam 16 adet kaynakça vardır.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Eylül 2018 |
| Gönderilme Tarihi | 12 Şubat 2018 |
| Kabul Tarihi | 25 Temmuz 2018 |
| Yayımlandığı Sayı | Yıl 2018 Cilt: 39 Sayı: 2 |
