Lead Isotope Identification of Sources of Galena from …
Doe, B. R., Lead Isotope Data Bank, Lead Isotopes and Ore Deposits Project (1975). Google Scholar. FLETCHER, I.R., THESIS U TORONTO (1979). ... THWAITES, R. G., Notes on early lead mining in the Fever (or Galena) River region, WISCONSIN HISTORICAL COLLECTIONS 13: 271 (1895). Google Scholar. Submit a Response to …
New look at the lead isotope growth curve
Using high precision analytical techniques Stacey et al.2 redetermined the single stage growth curve and found that galena samples ranging in age from 0 to 3,100 m.y. fit a …
The global lead isotope system: Toward a new …
From early on, researchers observed that the Pb isotope compositions of lead ore deposits, in the form of galena, appear to follow a simple isotopic growth curve (Cooper et al., 1969; Russell and Allan, 1955). Fig. 5 shows the growth distribution of the …
Lead isotopes in galena as tracers of the underlying …
The similarity of the 206Pb/204Pb-isotope ratios of galena from Lavrion and Milos suggests a common metal source underlies both regions, the Lower Cycladic Nappe, which contributed to the shallow crustal deposits in the western Cyclades and was accessible since the Late Miocene. In contrast, a mixture of more primitive metal sources, the Upper ...
(PDF) Sulfur and lead isotope geochemical characteristics of …
The lead isotope data for 18 galena samples and 18 ones of δ34S isotope data (including galena and pyrite samples) were collected from lead-zinc ore deposits in some areas in the Khau Loc zone ...
Metal provenancing using isotopes and the Oxford archaeological lead
The methodology of creating the Oxford lead isotope database (OXALID) is outlined and a summary is given of the lead isotope resource provided by OXALID. ... Hart SR, Shimizu N, Sverjensky DA (1981) Lead isotope zoning in galena: an ion microprobe study of a galena crystal from the Buick mine. Southeast Missouri, Economic Geology …
Regional similarities in lead isotopes and trace elements in galena …
Lead isotopes in galena from the Cyclades can be separated into two distinct regional metal sources, which correspond with known and proposed tectono-metamorphic units and can be used as a tracer of the underlying basement in the Cyclades. The unique crustal exposures of the region provide an important opportunity to …
Lead isotope systematics of strata-bound sulfide
55 galena samples from 18 deposits. Volcanite-hosted deposits have a less radiogenic lead isotope composition than sediment-hosted deposits, while galena in quartz segregations and crack fillings shows the most pronounced radiogenic lead isotope composition.
A geochemical characterization of lead ores in …
A well reasoned lead (Pb) isotope-driven provenance study lies in concert with a comprehensively evaluated database of geological ore sources and accompanying archaeological and contextual information. …
(PDF) Interpretation of Galena Lead Isotopes
Consequently, this paper examines all available galena lead isotope data related to this area. These data are from LEADTABLE, a. INTRODUCTION The Stewan-Iskut area has had the most exploration activity in the …
Lead isotope mapping of galena from base metal deposits …
The purpose of this study is to investigate the differences in sources of discrete four zones that are represented by the lead isotope map of metal mines using galena samples. The lead isotope map has been constructed based on 119 galena samples from 38 metal mines in the southern Korean Peninsula, together with previously …
GALENA LEAD ISOTOPE RESEARCH AT THE UNIVERSITY …
remote showings, are urged to submit them to the authors. These involve galena lead isotope analysis and interpretation ~~~~~,~~~~l~ 250 galena have been of mineralization from deposits in the Ro'ssland Group (with histories, continue ongoing projects, and provide prelimin. batholith (with D.A. Brouln and J.M. Logan). results
Galena | Common Minerals
Galena is the most abundant lead mineral, has been mined for millennia, and remains our major source of that metal. It is a metallic, lead-gray mineral with cubic cleavage and a distinctly high density that makes galena samples feel much 'heavier' than expected for their size. Because it melts at a relatively low temperature and is so ...
Lead and sulfur isotopic compositions of galena from the …
Sulfur, oxygen, carbon, and strontium isotope geochemistry of the Sarrabus-Gerrei mining district, southeastern Sardinia, Italy Economic Geology Textural and fluid inclusion evidence for ore deposition in the Pb-Zn deposit at Laisvall, Sweden
Interpretation of Galena Lead Isotopes from Texada Island
Interpretation of Galena Lead Isotopes from Texada Island* (92F) Colin Godwin. 2000. See Full PDF Download PDF. See Full PDF Download PDF. Related Papers ...
GALENA LEAD ISOTOPE MODEL FOR VANCOUVER ISLAND …
Galena lead isotope data from 3 groups of deposits in the Omineca crystalline belt can be interpreted in terms of mixing of lead from 2 contrasting sources, both of which follow simple growth ...
Lead isotope zoning in galena; an ion microprobe study of a galena …
Ion microprobe techniques have been used to determine the variations of Pb isotope ratios within a single octahedral crystal of galena from the Buick mine, southeast Missouri. The crystal shows uniform concentric zonation of Pb isotope ratios, with a total variation of approximately 3 percent in 208 Pb/ 206 Pb and approximately 4 percent in 207 Pb/ 206 …
Lead Isotopes | SpringerLink
Lead is chemically isolated from other elements by cation exchange chromatography, except when it is extracted from galena where it represents 82 % of the mineral. Lead isotope ratios have been measured by thermal ionization mass spectrometry (TIMS) or by multi-collector inductively coupled mass spectrometry (MC-ICPMS) .
Lead isotope mapping of galena from base metal …
The lead isotope map has been constructed based on 119 galena samples from 38 metal mines in the southern Korean Peninsula, together with previously …
Lead isotope zoning in galena; an ion microprobe study of a …
Abstract. Ion microprobe techniques have been used to determine the variations of Pb isotope ratios within a single octahedral crystal of galena from the Buick mine, …
Regional variations in the lead isotopic composition …
This study presents a comprehensive database ( n = 215) of lead isotopes in galena from the southern Korean peninsula using new and published data. Of the 69 …
Isotopic composition of lead in galenas from the Viburnum …
Patterns of lead isotope variation from the center to the edge of galena crystals can be correlated for distances up to 200 m.Our lead isotope data, together with earlier data for …
A geochemical characterization of lead ores in China: An isotope …
Lead isotope abundance studies on galena occurrences in Norway. Norsk. Geologisk Tidsskrift. 1963; 43: 283–344. 41. Liu R, Rawson J, Pollard AM. Beyond ritual bronzes: identifying multiple ...
Lead and Sulfur Isotope Studies of the Koru (Çanakkale, Turkey) Lead
Lead Isotope Results and Discussions The presented lead isotope data in Table 2 for 8 galena samples from various parts of the Koru Pb-Zn deposits Table 3. Sulfur isotope geothermometric temperature (ºC) and δ34S values of H2S in equilibrium with sphalerite and galena. Sample No EK-6 TK-45 TK-61 TK-73 δ34S values of sphalerite δ34S values ...
A geochemical characterization of lead ores in China: An isotope …
Lead isotope characterization of galena ores from the South China Block (SCB) and major metallogenic belts within. (A) Ternary diagram showing the isotopic fields of the Lower and Upper Yangtze province, Cathaysia, and Jinshachang Pb-Zn deposit. Jinshachang belongs to the Mississippi Valley Type (MVT) ore cluster in Northeast Yunnan.
Lead and sulfur isotope microstratigraphy in galena crystals …
The development of an analytical procedure for lead and sulfur isotope analysis by secondary ion microprobe mass spectrometry allowed us to provide in situ isotopic microanalyses of galena crystals.We performed analyses across the growth zones of two crystals of galena from Mississippi Valley-type ore deposits, with a spatial resolution of …
Geology and Lead‐Isotope Study of the
5.2.1 Ore lead. The Pb isotope compositions of galena and sphalerite in the Baiyinnuoer deposit are similar and homogeneous. A slightly more radiogenic Pb isotopic composition is evident in sulfide samples than that of the other rock samples at Baiyinnuoer.
(PDF) PRELIMINARY INTERPRETATION OF LEAD ISOTOPES IN GALENA-LEAD …
Based on lead isotope data, it has been shown that lead in the Beishan stratabound sphalerite-pyrite deposit came mainly from the oldland and its underlying basement rocks and, subordinately, the ...
Isotope characterization of lead in galena from ore deposits …
The three linear clusters of galena lead isotope data, groups 1 to 3, re¯ect di erences in the tectono-magmatic evolution and geology of the deposits sampled in the Group 2 AyseÂn region. Similar clustering of lead isotopes to de- ®ne fundamental geologic provinces has been observed Group 2 deposits are associated most closely with epi- in ...
Galena Lead Isotope Characteristics of Mineralization
Galena lead isotope data from 3 groups of deposits in the Omineca crystalline belt can be interpreted in terms of mixing of lead from 2 contrasting sources, both of which follow simple growth ...