No.169, Science (Kexue) Avenue,National HI-TECH Industry Development Zone, Zhengzhou, China [email protected] 0086-371-86549132

ONLINE MESSAGE
MOBILE CEUCHERS

search results isotope composition of carbon gold deposits:

Isotope (C and O) composition of auriferous quartz ...

Oct 01, 2015  Carbon (δ 13 C PDB) and oxygen (δ 18 O SMOW) isotopic compositions of auriferous quartz-carbonate veins (QCVs) of gold deposits from Sangli, Kabuliyatkatti, Nagavi, Nabapur and Mysore mining areas developed on the Central Lode system of the Gadag Gold Field (GGF) in the Neoarchaean Gadag schist belt of the Dharwar Craton, southern India have been examined for the

Read More
Carbon isotope studies of auriferous quartz carbonate ...

Jun 30, 2012  Carbon and oxygen isotopic compositions of carbonates from auriferous quartz carbonate veins (QCVs) of two orogenic gold deposits – Ajjanahalli and Guddadarangavvana Halli (G.R. Halli) – from the Neoarchean Chitradurga schist belt of the Dharwar craton, southern India are examined to understand the origin of the mineralizing fluids.

Read More
Carbon and oxygen isotope zoning around Carlin-type gold ...

Sep 01, 1998  A composition for the soluble (carbonate) fraction of the Ordovician Sequence shales (δ 18 O = +24‰, δ 13 C = 0‰) was estimated from oxygen and carbon isotope data for least altered samples at Twin Creeks and is consistent with the worldwide data

Read More
Isotope (C and O) composition of auriferous Quartz ...

Carbon (δ¹³CPDB) and oxygen (δ¹⁸OSMOW) isotopic compositions of carbonates of auriferous quartz-carbonate veins (QCVs), S-isotope (δ³⁴SCDT) composition of gold bearing sulphide minerals ...

Read More
Multiple isotope composition (S, Pb, H, O, He, and Ar) and ...

高达12%返现  Jul 05, 2013  Lead isotope compositions of the sulfides from the gold-bearing quartz veins show considerable variability within each deposit, but the ranges are similar among deposits (ESM Table 3). The 206 Pb/ 204 Pb, 207 Pb/ 204 Pb, and 208 Pb/ 204 Pb ratios of sulfides (pyrite and galena) in ores are 15.796–16.739, 15.188–15.680, and 36.589–37.930 ...

Read More
Isotope geochemistry and genesis of the Liyuan gold ...

Sep 21, 2021  In addition to the well-known gold deposits, such as the Yixingzhai and Xinzhuang gold deposits in the Hengshan Complex (Tian et al., 1998;Ye et al., 1999;Li et al., 2014;, the Shihu gold deposit ...

Read More
Fluid mixing in orogenic gold deposits: Evidence from the ...

Oct 25, 2016  Fluid boiling has little effect on the oxygen isotope composition, but has potential to significantly affect the hydrogen isotope composition below the critical temperature of the fluid, as shown in Fig. 4B. Fluid/rock exchange contributes to the variance in oxygen isotope composition typical for orogenic gold deposits, as shown by numerical ...

Read More
isotope position of carbon gold deposits

The Cachoeira gold deposit is one of several large (> 20 tonnes Au), shear-zone hosted hydrothermal gold deposits of the Proterozoic Gurupi Belt in northern Brazil. O, H, C, and S isotope compositions of carbonate, silicate, and sulfide minerals, and from graphite and inclusion fluids from this deposit have been measured in order to infer the ...

Read More
Isotope (C and O) composition of auriferous quartz ...

Carbon (δ13CPDB) and oxygen (δ18OSMOW) isotopic compositions of auriferous quartz-carbonate veins (QCVs) of gold deposits from Sangli, Kabuliyatkatti,

Read More
Isotope composition of carbon in the carbonates of the ...

@article{osti_6791254, title = {Isotope composition of carbon in the carbonates of the Gumbeykan scheelite deposits in the southern Urals}, author = {Korzhinskii, A F and Mamchur, G P and Yarynych, O A}, abstractNote = {Through investigations of the isotope composition of carbon of various generations and carbonates from marbles, skarns, and nested and vein scheelite orebodies, the

Read More
USGS Info Handout: Stable Isotopes and Mineral Resource ...

The isotope 14 C undergoes radioactive decay to an isotope of nitrogen ( 14 N). Because of its decay, 14 C is called a radiogenic or "unstable" isotope. The radioactive decay of 14 C is the basis for radiocarbon (carbon-14) dating. In contrast, 12 C and 13C do not radioactively decay. Hence, they are called stable isotopes.

Read More
Uniformity in sulfur isotope composition in the orogenic ...

May 05, 2009  The sulfur isotope composition of sulfides (mainly pyrite and arsenopyrite) from gold deposits/prospects of the Dharwar Craton such as Hutti, Hira-Buddini, Uti, Kolar (Chigargunta), Ajjanahalli, and Jonnagiri has a narrow range (δ 34 S = +1.1 to +7.1‰). Such craton-scale uniformity of the above gold camps is noteworthy, in spite of the wide diversity in host rock compositions and their ...

Read More
Carbon isotope composition of sedimentary rocks in the ...

The narrow variations in carbon isotope composition of the bitumoid are defined by their derivation from lipids, whose components are almost insusceptible to changes in the PT conditions. Kerogen from platform deposits is more strongly depleted than CB in the heavy carbon isotope (δ13Cav − 32.2‰).

Read More
(PDF) Sericite 40Ar/39Ar dating and S-Pb isotope ...

Feb 13, 2021  Sericite 40Ar/39Ar dating and S-Pb isotope composition of the Kanggur gold deposit: Implications for metallogenesis of late Paleozoic gold deposits in

Read More
STABLE ISOTOPES OF HYDROTHERMAL CARBONATE

The stable oxygen and carbon isotopic composition of the carbonate minerals are compared to see if any relationships exist between them. The isotopic values are also compared to depth within the deposit as well as across the district to determine if any relationships exist spatially.

Read More
Sericite 40Ar/39Ar dating and S-Pb isotope composition of ...

Sericite 40Ar/39Ar dating and S-Pb isotope composition of the Kanggur gold deposit: Implications for metallogenesis of late Paleozoic gold deposits in the Tianshan, central Asian Orogenic Belt Ore Geology Reviews ( IF 3.809) Pub Date : 2021-02-13, DOI: 10.1016/j.oregeorev.2021.104056

Read More
APPLYING STABLE ISOTOPES TO MINERAL EXPLORATION: TEACHING ...

Ratios of the stable isotopes of H, C, O, and S have been measured and applied to mineral deposit research since the 1950s (Engel et al., 1958).Stable isotopes have been used to decipher the origin and evolution of ore-forming fluids (see reviews of Ohmoto and Goldhaber, 1997; Taylor, 1997).In addition, several studies have demonstrated that stable isotope ratios are commonly altered in rocks ...

Read More
新疆哈图金矿成矿流体组分与同位素地球化学特征分析-Analysis of

Abstract:Hatu gold deposit, located in the south of western junggar region of Xinjiang, is one of the important gold deposits in the Hatu gold belt.In this paper, fluid inclusion composition analysis of quartz in quartz vein samples of gold mine is carried out, and the characteristics of sulfur isotopes of arsenopyrite and pyrite as well as carbon and oxygen isotopes in calcite were analyzed.

Read More
(PDF) Fluid inclusion and stable isotope (O, H, C, and S ...

Fluid inclusion and stable isotope (O, H, C, and S) constraints on the genesis of the Serrinha gold deposit, Gurupi Belt, northern. Evandro Klein. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

Read More
CiteSeerX — Citation Query Isotopes of sulfur and carbon ...

The Youngbogari deposit shares many features with other metamorphic rock-hosted gold deposits in the area, including a massive single-stage nature of veins and a simple vein mineralogy. However, its ore mineralogy is unique in that (1) arsenopyrite and pyrite occur dominantly with only minor pyrrhotite and (2) electrum grains are very poor in ...

Read More
Browse the USGS Publications Warehouse

Oxygen, hydrogen, sulfur, and carbon isotopes in the Pea Ridge magnetite-apatite deposit, southeast Missouri, and sulfur isotope comparisons to other iron deposits in

Read More
ISOTOPE GEOCHEMISTRY OF GOLD ORE DEPOSITS OF THE

Key words: stable isotope, gold ore deposit, genesis, Ukrainian Carpathians. ... F.I.Zhukov and D.O.Lesnoj [5], the isotope composition of carbon in carbonates varies in limits from -13.7 up to +1.5›. In shales of quartz-carbonate-sericitic composition, which contain mineralization, the

Read More
Stable Isotopic Evidence for the Involvement of Mantle ...

S. Sarangi, A. Sarkar, R. Srinivasan, S.C. Patel Carbon isotope studies of auriferous quartz carbonate veins from two orogenic gold deposits from the Neoarchean Chitradurga schist belt, Dharwar craton, India: Evidence for mantle/magmatic source of auriferous fluid, Journal of

Read More
Orogenic gold: Common or evolving fluid and metal sources ...

Sep 15, 2015  Orogenic gold deposits of all ages, from Paleoarchean to Tertiary, show consistency in chemical composition. They are the products of aqueous-carbonic fluids, with typically 5–20 mol% CO 2, although unmixing during extreme pressure fluctuation can lead to entrapment of much more CO 2-rich fluid inclusions in some cases.Ore fluids are typically characterized by significant concentrations of ...

Read More
Multiple sulphur and iron isotope composition of detrital ...

Multiple sulphur and iron isotope composition of detrital pyrite in Archaean ... igneous rocks and siliciclastic sedimentary rocks with low carbon and sulphur contents have limited Fe isotope variations, diagenetic pyrites in ... sources and shed lighton the provenance of Witwatersrand-type gold and uranium placer deposits. 2. Sample localities ...

Read More
Oxygen-Isotope Fractionations in Systems Containing ...

David P Stenger, Stephen E Kesler, Torsten Vennemann Carbon and oxygen isotope zoning around Carlin-type gold deposits: a reconnaissance survey at Twin Creeks, Nevada, Journal of Geochemical Exploration 63, no.2 2 (Sep 1998): 105–121.

Read More
Exploring for Carbonate‐Hosted Ore Deposits Using Carbon ...

Mar 29, 2019  However, carbon and oxygen stable isotope ratios in the rocks surrounding carbonate-hosted ore deposits often record large alteration halos (on the order of hundreds of meters to kilometers) which can be used to identify and vector toward ore bodies.

Read More
Carbon oxygen isotopes in Carbonate minerals

Carbon isotope ratios may be used to assess the source of carbon in carbonate minerals (e.g. mantle carbon, sedimentary rock (e.g. limestone) carbon, biogenic carbon) as well as to assess the role that oxidation may play within hydrothermal systems. Oxygen isotope ratios in carbonate minerals typically vary as a function

Read More
(PDF) Sericite 40Ar/39Ar dating and S-Pb isotope ...

Feb 13, 2021  Sericite 40Ar/39Ar dating and S-Pb isotope composition of the Kanggur gold deposit: Implications for metallogenesis of late Paleozoic gold deposits in

Read More
Carbon and Oxygen Isotope Compositions of Calcite and ...

Mar 24, 2011  Carbon and oxygen isotope compositions of carbonates are compiled in Table 1 together with the chemical composition, Th, and temperatures determined by a chlorite geothermometer (Inoue et al., 2009, 2010). The table also contains some data of carbonates from TH-2, TH-3, TH-5, and veins of Toyoha mine, other than TH-4 and TH-6, for comparison.

Read More
Ross LARGE Emeritus Distinguished Professor PhD ...

Interpretation of bulk sulfur isotope data of the orogenic gold deposit is frequently hampered by complex zoning in pyrite, which calls for in-situ determination of sulfur isotope composition of ...

Read More
Sulfur Isotope Composition of Ciemas Gold Deposit in West ...

Dec 01, 2014  Aug. 2014 ZHENG Chaofei, ZHANG Zhengwei, WU Chengquan and YAO Junhua, 2014. Sulfur Isotope Composition of Ciemas Gold Deposit in West Java, Indonesia. Acta Geologica Sinica (English Edition), 88(supp. 2): 852-853. Sulfur Isotope Composition of Ciemas Gold Deposit in West Java, Indonesia ZHENG Chaofei1,2, ZHANG Zhengwei1, WU Chengquan1,2 and YAO Junhua1,2 1 State Key Laboratory of Ore Deposit ...

Read More
Fluid Inclusion, Rare‐Earth Element and Stable Isotope ...

Jun 15, 2007  Carbon and oxygen isotope composition of calcite from the Pongkor gold–silver deposit. Theoretical curves for calcite composition are calculated using a Rayleigh degassing-precipitation model with HCO 3 − and H 2 CO 3, respectively, as the dominant dissolved carbon species in

Read More
Fluid Inclusion and H–O–S–Pb Isotope Geochemistry of the ...

Oct 07, 2019  The Yuka gold deposit, located in the western part of northern Qaidam, contains Au orebodies hosted in early Paleozoic metamorphic basic volcaniclastic rocks. The Yuka mineralization can be divided into three stages: early quartz-pyrite (stage-I), middle quartz-gold-polymetallic sulfide (stage-II), and late quartz-carbonate (stage-III). Gold deposition is primarily contained within stage-II.

Read More
(PDF) Lead Isotope Heterogeneity in Sulfides from ...

The com parison of the Pb isotope composition in sulfides of the veinlet disseminated mineralization sampled from different ore bodies revealed no spatial regularity in the lead distribution. However, pronounced variations in the Pb isotope composition were found for the min erals of veinlet disseminated ores and those of the late gold-quartz ...

Read More
<< Previous:Phosphate Rock Life Search
>> Next:Ginger Ginding Machine

QUALITY SERVICE

Pre-sale service

Shuttle bus

Factory visit

Business tourism

Conference reception

Sale service

On-the-spot investigation

Conceptual design

Detailed quotation

Sign a contract

After-sale service

Packaging delivery

Installation and debugging

Operation training

Regular visit

1.Liming Heavy Industry, a professional manufacturer, can provide perfect quality assurance system for the products.
2.The flexible payment method can help you relieve project stress.
3.Short stocking period and quick delivery speed can reduce project preparation cycle.
4.There are many transportation ways including sea transportation, air transportation, land transportation, which can make your product reach destination quickly.
5.There is a quick response to your problem. And technicians will provide professional assistance at any time.

Copyright © 2004-2015 by China Liming Heavy Industry Science and Technology Co. LTD All rights reserved Industry News Products