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Mineralogical and Stable Isotope Studies of Kaolin

The siliceous and advanced argillic alteration along steep conduits formed from acidic ascending magmatic-hydrothermal fluids, whereas the near-surface kaolin formed from steam-heated meteoric waters. Alteration mineral assemblages and stable isotope data provide evidence of the temperature and source of hydrothermal fluids.

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Mineralogical and Stable Isotope Studies of Kaolin

Large kaolin deposits hosted by Miocene silicic pyroclastic rocks in northwestern Sardinia represent hydrothermal alteration formed within 200 m of the Miocene paleosurface. Boili

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Mineralogical, geochemical and stable isotope studies of

Mineralogical, geochemical and stable isotope studies of kaolin deposit in north-west Gonabad district (eastern Iran) Kaolin deposits, situated ~10 km north-west of Gonabad (eastern Iran), formed by the intrusion of hydrothermal fluids from a granite dyke in the western part of the study area, and the alteration of rhyolite, dacite and rhyodacite related to Eocene volcanism.

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Stable isotope geochemistry of ore deposits Reviews in

Stable isotope geochemistry of ore deposits Hiroshi Ohmoto. Hiroshi Ohmoto Pa. State Univ., Dep ... Mineralogical Magazine. V – Goldschmidt Abstracts 2013 ... as indicated by stable isotope studies Ore-bearing Granite Systems; Petrogenesis and Mineralizing Processes. View More ...

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Stable isotope constraints on the origin of kaolin deposits

Because detailed information about their stable isotope systematics is lacking, the origin of the largest kaolin deposits of Galicia is still under debate, as kaolinite could have formed by either weathering reactions (supergene kaolins), hydrothermal alteration during the late stages of pluton cooling (hydrothermal kaolins), or a combination ...

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Thermoanalytical characterization, stable isotope and

The aim of the present study was the paleoenvironmental reconstruction of the prevailing environment under which the Lwamondo and Zebediela kaolin deposits were formed. Hence, this study reports deuterium and oxygen stable isotope values and trace and rare earth element concentrations for two samples of kaolin.

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Mineralogical, stable isotope, and fluid inclusion studies of

2012-04-17  Mineralogical, stable isotope, and fluid inclusion studies of spatially related porphyry Cu and epithermal Au-Te mineralization, Fakos Peninsula, Limnos Island, Greece

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MINERALOGICAL, FLUID INCLUSION AND STABLE ISOTOPE

2005-10-02  MINERALOGICAL, FLUID INCLUSION AND STABLE ISOTOPE STUDIES OF THE BANSKA −TIAVNICA EPITHERMAL PRECIOUS AND BASE METALS DEPOSIT IN THE CENTRAL SLOVAKIA V. A. KOVALENKER1,V. Y. PROKOF’EV1, M. HABER2, S. JELEN2 and L. P. NOSIK1 1Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry (IGEM) RAS,

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Genesis of kaolin minerals and pyrophyllite in Kuroko

Printed in U.S.A. 0016-7037/89/$3.00 + .00 Genesis of kaolin minerals and pyrophyllite in Kuroko deposits of Japan: Implications for the origins of the hydrothermal fluids from mineralogical and stable isotope data KATSUMI MARUMO Mineral Deposits Department, Geological Survey of Japan, 1-3, Higashi 1 che, Tsukuba.

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Mineralogical, petrological, stable isotope, and fluid inclusion

2018-08-11  Graduate Theses and Dissertations Iowa State University Capstones, Theses and Dissertations 2010 Mineralogical, petrological, stable isotope, and fluid inclusion studies of the Palea Kavala reduced intrusion-related and the transitional Fakos

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Mineralogical, petrological, stable isotope, and fluid inclusion studies

2018-08-11  Graduate Theses and Dissertations Iowa State University Capstones, Theses and Dissertations 2010 Mineralogical, petrological, stable isotope, and fluid inclusion studies of the Palea Kavala reduced intrusion-related and the transitional Fakos

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Stable isotope, Fluid Inclusion and Mineralogical Studies of the

Stable isotope, Fluid Inclusion and Mineralogical Studies of the Samkwang Gold-Silver Deposits, Republic of Korea Samkwang gold-silver deposits;Ore mineralization;Fluid inclusion;Stable isotope; The Samkwang gold-silver deposits consist of gold-silver-bearing hydrothermal massive quartz veins which filled the fractures along fault ...

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Mineralogical, Petrological, Stable Isotope, and Fluid Inclusion

2010-01-08  Mineralogical, Petrological, Stable Isotope, and Fluid Inclusion Characteristics of the Tuvatu Gold-Silver Telluride Deposit, Fiji: Comparisons with the Emperor Deposit NANCY L. SCHERBARTH* AND PAUL G. SPRY† Department of Geological and Atmospheric Sciences, 253 Science I, Iowa State University, Ames, Iowa 50011 Abstract

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Formation of a hydrothermal kaolinite deposit from

Abstract. The Longmen kaolinite deposit is one of the largest hydrothermal clay deposits of Ganxi volcanic basin (northern Wuyi Mountain area, China). The pristine host rocks are rhyolitic crystal-vitric tuff and minor lapilli tuff from the Late Jurassic Ehuling Formation.

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Minerals Free Full-Text Trace Element and Stable

The aim of the present study was the paleoenvironmental reconstruction of the prevailing environment under which the Lwamondo and Zebediela kaolin deposits were formed. Hence, this study reports deuterium and oxygen stable isotope values and trace and rare earth element concentrations for two samples of kaolin. Upper continental crust ...

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The geochemistry of carbonate-hosted Pb-Zn-Ag

2018-08-15  The geochemistry of carbonate-hosted Pb-Zn-Ag mineralization in the Lavrion District, Attica, Greece: fluid inclusion, stable isotope, and rare earth element studies Todd Andrew Bonsall Iowa State University ... studies. Mineralogical and petrographic studies of contact and regional metamorphism were

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Trace Element and Stable Isotope Geochemistry of Lwamondo

2019-02-04  Minerals 2019, 9, 93 2 of 20 of kaolins hinge on their environments of formation. Only a few studies have been carried out on the utilisation of kaolin in paleoenvironmental reconstruction. Trace element and stable isotope compositions of kaolins are powerful geochemical proxies in

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Mineralogical and stable isotope studies of gold

Mineralogical and stable isotope studies of gold-arsenic mineralisation in the Sams Creek peralkaline porphyritic granite, South Island, New Zealand: ... then the Sams Creek gold deposit appears to be a hybrid between those described as reduced granite Au-Bi deposits and alkaline intrusive-hosted Au-Mo-Cu deposits.

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Industrial mineral occurrences associated with Cenozoic

Read "Industrial mineral occurrences associated with Cenozoic volcanic rocks of Sardinia (Italy): Geological, mineralogical, geochemical features and genetic implications, Ore Geology Reviews" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Introduction of Several Albitite-greisen Type Deposits of Korea

Introduction of Several Albitite-greisen Type Deposits of Korea taeniolite ... and Lee I.S. (1996) Mineralogical and stable isotope studies of cassiterite greisen moneralization in the Uljin area, Korea ... Lee, H.J., and Cho, H.I. (1990) Secondary kaolin deposits of Jeollabugdo and primary deposits

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Geochemistry and Mineralogy of REE in Virtasalmi kaolin deposits, SE Finland

2011-02-16  Virtasalmi kaolin deposits, SE ... Title of report ; Geochemistry and Mineralogy of REE in Virtasalmi kaolin deposits, SE Finland . Abstract . The aim of this study was to find out the potential of Virtasalmi kaolins for ionic type REE-deposits. The samples for mineralogical and chemical studies were selected from the drill cores of ...

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Volume 16: Stable Isotopes in High Temperature

Virtually no issue of Economic Geology now appears without 3 or 4 papers dealing with stable isotope variations. No one writes papers on the development of the hydrosphere, hydrothermal alteration, ore deposits, melt-fluid-solid interactions, etc. without taking into account the ideas and concepts of stable isotope

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Textural, mineralogical and stable isotope studies of

Textural, mineralogical and stable isotope studies of hydrothermal alteration in the main sulfide zone of the Great Dyke, Zimbabwe and the precious metals zone of the Sonju Lake Intrusion, Minnesota, USA @article{Li2008TexturalMA, title={Textural, mineralogical and stable isotope studies of hydrothermal alteration in the main sulfide ...

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Genesis of kaolin minerals and pyrophyllite in Kuroko

Abstract Hydrogen and oxygen isotope and X-ray analyses were performed on kaolin minerals (kaolinite, dickite, and nacrite) and pyrophyllite from the Minamishiraoi and Inarizawa deposits of northern Japan. Dickite, nacrite, and mica-rich mica/smectite mixed-layer minerals occur as envelopes around barite-sulfide orebodies in the ...

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(PDF) Provenance studies of Kalabsha kaolin deposits,

The second cycle is kaolin-bearing, comprising Despite all the abovementioned studies, provenance, tec- three main types of kaolin deposits, namely (a) pisolitic-oolitic tonic setting, and paleoweathering conditions of the kaolin, (b) conglomeratic kaolin, and (c) massive kaolin Kalabsha kaolin deposit are still under discussion, and (Fig. 3a–c).

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Genesis of the La Espingarda kaolin deposit in

Read "Genesis of the La Espingarda kaolin deposit in Patagonia, Applied Clay Science" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Geochemical and Mineralogical Studies of a South Texas Roll

2010-11-09  Geochemical and Mineralogical Studies of a South Texas Roll Front Uranium Deposit By Martin B. Goldhaber and Richard L. Reynolds Abstract Core samples from a roll-front uranium deposit in south Texas have been analyzed for iron sulfide content and mineralogy, organic carbon content and the abundance of carbonate, iron, manganese and titanium.

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Ömer Işık ECE Professor of Geology

2012-08-27  Stable isotope geochemistry and genesis of hydrothermal stockwork-type magnesite deposits in NW Turkey. G) Stable isotope geochemistry of halloysite-alunite deposits at Turplu Mine, Balıkesir, Turkey. H) Genesis of kaolin-alunite deposits in the Düvertepe Kaolin

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Geochemistry of Sublacustrine Hydrothermal Deposits in

Abstract. Geochemical and mineralogical studies of hydrothermal deposits and altered vent muds from the floor of Yellowstone Lake indicate that these features form due to hydrothermal fluid quenching in shallow flow conduits or upon egress into bottom waters.

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Fluid evolution of the Jiawula Ag–Pb–Zn deposit, Inner Mongolia: mineralogical

2017-05-09  Shou-Guang Wang Yu-Xi Li (2013) Fluid evolution of the Jiawula Ag–Pb–Zn deposit, Inner Mongolia: mineralogical, fluid inclusion, and stable isotopic evidence, International ... ern China due to its wide variety of metal deposits and dif-fering ... compositional studies of the ore-forming minerals, isotope geochemistry ...

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Mineralogy and stable isotope geochemistry of the Ab

Abstract. Abstract \ud The Ab Ask mineral springs are located 85 km northeast of Tehran, in the southern range of the Damavand volcano. Deposits of these calcareous springs are mainly precipitated as travertine. Petrographical, mineralogical, and stable isotope studies were conducted on different types of travertine to determine their ...

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Studies of the Dopolan Bauxite Deposit, Zagros

2016-07-09  minerals Article Mineralogy, Geochemistry and Stable Isotope Studies of the Dopolan Bauxite Deposit, Zagros Mountain, Iran Somayeh Salamab Ellahi 1, Batoul Taghipour 1,*, Alireza Zarasvandi 2, Michael I. Bird 3 and Alireza K. Somarin 4 1 Department of Earth Sciences, Shiraz University, Shiraz 7146713565, Iran; [email protected]

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Stable isotopes and geocbemistry as exploration indicators

2018-05-11  The approach of the Isotope and Alteration Studies component of the Mount Read Volcanics Project has been to provide an integrated approach to the study of rock alteration around massive sulphide deposits, involving petrography, mineralogy, stable isotope and whole-rock geochemistry, and fluid inclusions, with the dual aims of: 1.

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Kaolin deposits of the Charentes Basin - Wikipedia

2019-10-16  These chemical and mineralogical evolutions (dissolution–crystallization) allow the neo-formation of kaolin and gibbsite, as well as iron sulfide. [citation needed] At their basement, highly enlaced and with channel shapes, those deposits often fill

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Isotopic tools of dating paleoweathering in Europe

2015-07-01  ISOTOPIC TOOLS AND METHODS OF DATING PALEOWEATHERING 50 GÉOLOGIE DE LA FRANCE, N° 1, 2003 illite-smectite, celadonite) in saprolites is very problematic (e.g., Gilg and Frei, 1997). A combination of radiogenic and stable isotope and fluid inclusion data can be useful in

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Exploring for Carbonate‐Hosted Ore Deposits Using

In this contribution we review the theory of carbon and oxygen isotope alteration during hydrothermal fluid flow, and present various case studies carried out over the last 50 years which demonstrate stable isotope alteration in carbonate‐hosted ore deposits.

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Disclaimer

2019-05-07  Both deposits have large tonnage of Cu, Mo and Au, and been mined for a long time. Compared to many geological studies about petrographic and mineralogical characteristic of both deposits, few researches have been conducted for ore genesis and material sources. Based on geological, mineralogical and stable isotope geochemical measurements,

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Mineralogical Association - RECENT AND NOT-SO-RECENT DEVELOPMENTS IN URANIUM DEPOSITS ...

2015-05-15  v Decay schemes 34 The age equation 35 U-Pb systems 38 Sm-Nd systems 40 K-Ar and Ar-Ar systems 41 Radiogenic isotopes as tracers 42 Stable isotope geochemistry 43 Application of stable isotope geochemistry to uranium 46 Fluid inclusion studies 47

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Earth Sciences 9506a. Stable Isotope Geochemistry in Earth

2016-07-08  Earth Sciences 9506a June 27, 2016 FJ Longstaffe 3 Course Outline: This outline is a guide only. Stable Isotope Science is a dynamic tool applied to scientific research in many different fields. Course content may change depending on class

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The Bou Dahar Jurassic carbonate-hosted Pb–Zn–Ba deposits

2019-06-10  The Bou Dahar Jurassic carbonate-hosted Pb–Zn–Ba deposits (Oriental High Atlas, Morocco): Fluid-inclusion and C–O–S–Pb isotope studies Larbi Rddada,⁎, Salah Bouhlelb a Kingsborough Community College of the City University of New York, Department of Physical Sciences, Earth and Planetary Division, department of Physical ...

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