Sulphur- and lead-isotope geochemistry of the Arapuçandere lead–zinc–copper deposit, Biga Peninsula, northwest Turkey

Bozkaya, Gülcan

doi:10.1080/00206810902945090

Cited by 36 publications

(17 citation statements)

References 12 publications

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“…The sulfide minerals of ores formed in deposits usually contain very low concentrations of U and Th and insignificant increase of the radiogenic Pb (Zhang, 1992;Zhang & Gao, 2012). Therefore, Pb isotopes of sulfides from deposits are commonly used to constrain the source of the Pb, regardless of the total Pb concentration in the sulfides (e.g., Bozkaya, 2011;Goldfarb et al, 2004;Mortensen et al, 2008;Zhao, Jiang, Ni, Ling, & Jiang, 2007).…”

Section: Lead Sourcesmentioning

confidence: 99%

Genesis of the Huanggoushan Pb–Zn–Au polymetallic deposit in southern Jilin Province, NE China: Constraints from fluid inclusions and C–H–O–S–Pb isotope systematics

et al. 2019

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The Huanggoushan Pb–Zn–Au deposit is located in the central part of southern Jilin Province in northeastern portion of the North China Craton. It experienced two types of mineralization, namely, stratabound Pb–Zn mineralization placed close to interlayer fracture zones of banded marble and veined Au mineralization controlled by NNE‐trending brittle–ductile shear zones. The Pb–Zn mineralization is characterized by a low‐temperature and low‐salinity H2O–NaCl system of hydrothermal fluids that yielded δD and δ18OH2O values similar to those of meteoric water. The δ34S values of sulfide minerals in the Pb–Zn ores range from 14.8‰ to 17.1‰ with an average of 16.1‰, which reflects a sulfur origin in the seawater sulfate. The sulfur of Pb–Zn ores was most possibly transformed from that of sulfate S6+ into the sulfide S2− by bacteriogenic sulfate reduction processes. Lead isotopic compositions of sulfides separated from the Pb–Zn ores show 206Pb/204Pb ratios from 15.309 to 16.353, 207Pb/204Pb ratios from 15.321 to 15.485, and 208Pb/204Pb ratios from 34.883 to 35.550. By contrast, original medium‐high‐temperature hydrothermal fluids in stage I of the Au mineralization are represented by low‐salinity H2O–CO2–NaCl system with relatively higher δD and δ18OH2O values, which indicates that original ore‐forming fluids were possibly sourced from the Mesozoic magmatic fluids. The δ13C values of fluid inclusions in hydrothermal quartz from Au ores range from −9.6‰ to −2.4‰, most values of which are similar to those of magmas. The sulfides in Au ores have relatively lower δ34S values of 1.0‰ to 8.0‰ than those of sulfides in the Pb–Zn ores. The various δ34S values of sulfides from the Au ores, similar to those of sulfides from the Mesozoic magmatic hydrothermal Au deposits in Heilongjiang—Jilin region, reflect a magmatic sulfur origin. Lead isotopic compositions of sulfides from the Au ores have relatively higher ratios, with 206Pb/204Pb from 17.852 to 20.468, 207Pb/204Pb from 15.591 to 15.833, and 208Pb/204Pb from 37.051 to 38.899. Collectively, geology, fluid inclusions, and isotope geochemistry suggest that ore‐forming fluids of the Pb–Zn mineralization originated from heated seawater with sulfur and lead sourced from seawater sulfate and upper crust, respectively. Thus, the Pb–Zn mineralization can be classified as the Paleoproterozoic SEDEX Pb–Zn category. Whereas, the ore‐forming fluids and sulfur of Au mineralization were of the Mesozoic magmatic origin, with the lead materials from the Paleoproterozoic Zhenzhumen Formation. These features demonstrate that the Au minerlization was closely related to the Mesozoic magmatic‐hydrothermal activity and thus categorized as Mesozoic magmatic hydrothermal Au.

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Section: Lead Sourcesmentioning

confidence: 99%

Genesis of the Huanggoushan Pb–Zn–Au polymetallic deposit in southern Jilin Province, NE China: Constraints from fluid inclusions and C–H–O–S–Pb isotope systematics

et al. 2019

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“…Sıvı kapanım çalışmalarıyla elde edilen veriler sayesinde akışkanların yüksek tuzluluklu (olasılıkla magmatik) sıvılar ve meteorik sıvıların etkileşimleri sonucu oluştuğu ortaya koyulmuştur. Bozkaya (2011), δ 34 S ve Pb izotop çalışmaları ile sıvı kapanım verileri yardımıyla Arapuçandere Pb-Zn-Cu damarlarındaki Pb ve S'ün Erken Kretase-Paleosen aralığında derin dolaşımlı meteorik sular aracılığı ile Triyas yaşlı metaklastik ve metabaziklerden süzülerek zenginleştiğini ifade etmiştir. Ancak, tüm bu modellerde hala açıklanmayı bekleyen noktalar bulunmaktadır.…”

Section: Tartişma Ve Sonuçlarunclassified

Çataltepe (Lapseki-Çanakkale) Pb-Zn±Cu±Ag Yatağı'nın Jeolojisi ve Alterasyon Özellikleri

Demirela¹,

Akıska²,

Sayili³

et al. 2014

YRB

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ÖZ Biga Yarımadası'nın KB ucunda ve Çanakkale ili Lapseki ilçesi doğusunda yer alan Çataltepe Pb-Zn±Cu±Ag yatağı, Kretase yaşlı Çamlıca metamorfitlerinin mermerleri içinde ve onların diğer kayaçlarla olan dokanakları boyunca genellikle litolojik kontrollü olarak gelişmiş bir cevherleşmedir. Şu an aktif olarak üretim yapılan işletme alanında cevherleşmelerin genel doğrultu/eğimi mermer ve diğer metamorfitlerin genel doğrultu/eğimine uyumlu olup yaklaşık K40 o B/40 o KD'dur. Mikroskobik çalışmalar prograd evreye özgün granat ve piroksen minerallerinin varlığını ve bu minerallerin retrograd evrede karbonatlaşıp epidotlaştığını göstermektedir. Cevher mineralleri olarak kahverengi sfalerit, bal renkli sfalerit, galenit, kalkopirit, pirit, pirotin, valeriit, manyetit, hematit, markazit, arsenopirit ve limonit mineralleri izlenmektedir. Retrograd evre sırasında gelişen cevherleşmeler dokusal olarak masif dokulu cevherleşmeler ve saçınımlı dokulu cevherleşmeler olmak üzere iki gruba ayrılmakta ve masif dokulu cevherleşmeler saçınımlı dokulu cevherleşmeler tarafından kesilmektedir. Bu cevher minerallerine karbonat, klorit ve kuvars mineralleri eşlik etmektedir. Geç evre alterasyonlar başlıca manganoksit-hidroksit, limonit, karbonat ve kalsit mineralleri ile temsil edilmekte olup prograd ve retrograd evre alterasyonlarını maskelemektedir. Çalışmalar sırasında elde edilen veriler, Çataltepe Pb-Zn±Cu±Ag yatağının mermer-metakumtaşı/kuvarsit dokanakları boyunca ve esas olarak mermerler içinde bir magmatik etki ile evrimleşen cevherli çözeltilerden itibaren oluştuğuna işaret etmektedir. Ayrıca veriler, sıcaklık bakımından mezo-epitermal koşullarda oluşan distal Pb-Zn skarn yataklarına göre biraz daha sığ kesimlerde ortaya çıkmış epijenetik bir yatağı önermektedir.

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“…Lead isotope signatures can be used to define the source of Pb (Doe & Zartman, ), and to fingerprint mineral systems with model age information for an individual deposit (Downes & Seccombe, ). Therefore, the application of lead isotope analysis can provide important data to be used in constraining the process of ore formation (Harkins, Appold, Nelson, Brewer, & Groves, ; Zartman & Smith, ; Bozkaya, ; Huston, Pehrson, Eglington, & Zaw, ; Huston, Relvas, Gemmell, & Drieberg, ). A limited previous work dealing with lead isotopic characteristics for the well‐known and sizeable volcanic‐hosted massive sulfide (VHMS) deposits concluded that the source region of the VHMS deposits has a variety of tectonic settings, with a range in lead isotope composition, consistent with variable contributions of lead from the mantle, seawater, and sediments (Fouquet & Marcoux, ; Stuart, Ellam & Duckworth, 1999; Hannington, De Ronde, & Petersen, ; Huston et al, ).…”

Section: Introductionmentioning

confidence: 99%

Pb‐isotope compositions of the Tasik Chini volcanic‐hosted massive sulfide deposit, Central Belt of Peninsular Malaysia: Implication for source region and tectonic setting

et al. 2017

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Lead isotope data of sulfides and host volcanic rocks from the Bukit Botol and Bukit Ketaya deposits, the two representative deposits of the Tasik Chini volcanic‐hosted massive sulfide (VHMS) deposit, Central Belt of Peninsular Malaysia, are reported. Lead isotope compositions of the associated sulfide minerals and volcanic rocks from the Bukit Botol deposit exhibit homogeneous and less radiogenic values (206Pb/204Pb showing a range of composition from 18.14 to 18.20, 207Pb/204Pb between 15.52 and 15.59 and 208Pb/204Pb from 37.96 to 38.35). Similarly, the Pb isotopic compositions of the host volcanic rocks from the Bukit Ketaya deposit yielded a narrow range to those of the sulfide samples (206Pb/204Pb from 18.04 to 18.20, 207Pb/204Pb between 15.43 and 15.57 and 208Pb/204Pb of 37.96 to 38.30). The uniform Pb‐isotope compositions of the sulfides in the ore horizon and the host volcanic rocks from both deposits suggest a derivation from a similar source reservoir and mineralization processes. In the framework of the tectonic model for the Central Belt of Peninsular Malaysia, both deposits display a range of lead isotopic compositions originated from mixing of bulk crust/juvenile arc and minor mantle sources, which are typical for VHMS deposits in an island arc–back arc setting.

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Sulphur- and lead-isotope geochemistry of the Arapuçandere lead–zinc–copper deposit, Biga Peninsula, northwest Turkey

Cited by 36 publications

References 12 publications

Genesis of the Huanggoushan Pb–Zn–Au polymetallic deposit in southern Jilin Province, NE China: Constraints from fluid inclusions and C–H–O–S–Pb isotope systematics

Genesis of the Huanggoushan Pb–Zn–Au polymetallic deposit in southern Jilin Province, NE China: Constraints from fluid inclusions and C–H–O–S–Pb isotope systematics

Çataltepe (Lapseki-Çanakkale) Pb-Zn±Cu±Ag Yatağı'nın Jeolojisi ve Alterasyon Özellikleri

Pb‐isotope compositions of the Tasik Chini volcanic‐hosted massive sulfide deposit, Central Belt of Peninsular Malaysia: Implication for source region and tectonic setting

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