Geochemistry, mineralogy and genesis of the Ayazmant Fe–Cu skarn deposit in Ayvalik, (Balikesir), Turkey

Oyman, Tolga

doi:10.1016/j.oregeorev.2010.03.002

Cited by 63 publications

(19 citation statements)

References 59 publications

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“…Eolian sand deposits throw into disarray chronosequence identification; however, these deposited events are records of paleo-climatic conditions (Moody and Graham 1995). Recently, several studies have used oxygen isotope ratio to evaluate the sedimentation dynamic and ascertain the source of parent materials in heterogeneous soil profiles (Bechtel and Schubert 2009;Feng and Zhu 2009;Katz and Starinsky 2009;Oyman 2010).…”

Section: Introductionmentioning

confidence: 99%

Geomorphological and paleoclimatic implications of soil development from siliceous materials on the coral-reef terraces of Liuchiu Island in southern Taiwan

Cheng

Jien

Tsai

et al. 2011

Soil Science and Plant Nutrition

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Liuchiu Island is an uplifted coral-reef island located off southwestern Taiwan. A total of four soil pedons, labeled as LC-1 and LC-2 from the Holocene terraces and LC-3 and LC-4 from the Pleistocene terraces, were sampled on the island for this work. These soils were siliceous, and were characterized by enrichment of clay and free iron (Fe d ). According to Soil Taxonomy, pedons LC-3 and LC-4 were classified as Paleudults and pedons LC-1 and LC-2 were Dystrudepts. The soil properties showed progressive changes from pedon LC-1 to pedon LC-4 in morphology, physical and chemical properties, and clay mineralogy. The contents of total Fe and dithionite-citrate-bicarbonate extractable Fe were significantly higher in pedons LC-3 and LC-4 with high weathering degree than in pedons of LC-1 and LC-2 with less weathering degree. Enrichment of kaolinite and gibbsite in pedons LC-3 and LC-4 also suggested high chemical weathering degree of the soils. The estimated soil ages for all studied pedons were consistent with their degrees in pedogenesis, where pedons LC-3 and LC-4 were located at older terraces and pedons LC-1 and LC-2 were located at younger terraces. Namely, it complied with the geologic interpretation of the continuous and simultaneous uplift and tilt of the island over time. Instead of the in situ weathering from the underlying coral reef limestone, all soils developed from siliceous parent materials deposited onto the surfaces. The SiO 2 /Al 2 O 3 ratios of soils indicated a component of loess may have been incorporated from continental China as part of the parent material, which confirmed a climate change of strong monsoons or severe dust storms occurred before the Holocene. However, soil development increased by the subsequent warm and humid climates of the interglacial stage over time.

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Section: Introductionmentioning

confidence: 99%

Geomorphological and paleoclimatic implications of soil development from siliceous materials on the coral-reef terraces of Liuchiu Island in southern Taiwan

Cheng

Jien

Tsai

et al. 2011

Soil Science and Plant Nutrition

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“…Both are contact hydrothermal deposits. On the basis of direct observations and of the previous work [15,18,21,22], the mineralization occurs both as a skarn-type in the contact area between limestone and the volcanic dacite, and as an epithermal carbonate-replacement type (as disseminatedand veinlets-types, in fractures of the limestone, and in dacite). Although the carbonate-replacement deposits typically occur as irregular, disseminated, and discontinuous pots and lenses, there is, commonly, an overall structural, and lithological, control.…”

Section: Geological Setting Of the Study Areamentioning

confidence: 81%

Geological modeling of rock type domains in the Balya (Turkey) lead-zinc deposit using plurigaussian simulation

Yünsel

Ersoy

2013

Open Geosciences

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Mineral resource evaluation requires defining geological rock-type domains. The traditional simulation methods have serious limitations for applications to large numbers of domains, which have complex contact relations. Plurigaussian simulation is an effective method which can be applied, in a simple way, to any number of domains, using both local and global geological information to infer the distributions of rock types. This work not only presents the application of the plurigaussian simulation method to the Balya lead-zinc deposit, but also assesses the spatially varying rock type proportions, and accounts for uncertainties between them. These parameters are extremely important for mining deposits, since the mineralizations of interest generally occur only in certain rock types. Furthermore, being able to model the different geological rock types is vital to good mine operations, production planning, and management. The results indicate that the plurigaussian method correctly reproduces the different orientations of the individual rock types, as seen in drill holes, and the proportion of each rock type, even if this varies in space.

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“…The small Ayazmant Fe-Cu-(Au) porphyry-related skarn deposit has a reported reserve of 5.75 Mt at 46 percent iron and 0.6 percent copper (Oyman, 2010). It occurs at the contact between early Triassic metapelites and metabasites and an early Miocene (20.1 Ma) calc-alkaline porphyry stock (Oyman, 2010;Yigit, 2006Yigit, , 2009).…”

Section: Ayazmant Porphyry Depositmentioning

confidence: 99%

“…It occurs at the contact between early Triassic metapelites and metabasites and an early Miocene (20.1 Ma) calc-alkaline porphyry stock (Oyman, 2010;Yigit, 2006Yigit, , 2009). The skarn is made up of early diopsidegrossularite; scapolite and magnetite(±hematite); andraditesalite-actinolite-sulfide; and late actinolite, epidote, orthoclase, phlogopite, and chlorite.…”

Section: Ayazmant Porphyry Depositmentioning

confidence: 99%

“…The skarn is made up of early diopsidegrossularite; scapolite and magnetite(±hematite); andraditesalite-actinolite-sulfide; and late actinolite, epidote, orthoclase, phlogopite, and chlorite. Mineralization consists of chalcopyrite and subordinate molybdenite, pyrite, cubanite, bornite, pyrrhotite, galena, sphalerite, and idaite (Oyman, 2010).…”

Section: Ayazmant Porphyry Depositmentioning

confidence: 99%

See 1 more Smart Citation

Porphyry copper assessment of the Tethys region of western and southern Asia: Chapter V in <i>Global mineral resource assessment</i>

Zürcher¹,

Bookstrom²,

Hammarstrom³

et al. 2015

Scientific Investigations Report

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1-888-ASK-USGS (1-888-275-8747).For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod.To order this and other USGS information products, visit http://store.usgs.gov.Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report.Suggested citation: Zürcher, L., Bookstrom A.A., Hammarstrom, J.M., Mars, J.C., Ludington, S., Zientek, M.L., Dunlap, P., and Wallis, J.C., with contributions from Drew, L.J., Sutphin, D.M., Berger, B.R., Herrington, R.J., Billa, M., Kuşcu, I., Moon, C.J. ,and Richards, J.P., 2015, Porphyry copper assessment of the Tethys region of western and southern Asia: U.S. Geological Survey Scientific Investigations Report 2010-5090-V, 232 p., and spatial data, http://dx.doi.org/10.3133/sir20105090V. AbstractA probabilistic mineral resource assessment of undiscovered resources in porphyry copper deposits in the

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Geochemistry, mineralogy and genesis of the Ayazmant Fe–Cu skarn deposit in Ayvalik, (Balikesir), Turkey

Cited by 63 publications

References 59 publications

Geomorphological and paleoclimatic implications of soil development from siliceous materials on the coral-reef terraces of Liuchiu Island in southern Taiwan

Geomorphological and paleoclimatic implications of soil development from siliceous materials on the coral-reef terraces of Liuchiu Island in southern Taiwan

Geological modeling of rock type domains in the Balya (Turkey) lead-zinc deposit using plurigaussian simulation

Porphyry copper assessment of the Tethys region of western and southern Asia: Chapter V in <i>Global mineral resource assessment</i>

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