Results 81 to 90 of about 2,449 (244)

The Halab deposit, SW Zanjan: Volcanogenic massive sulfide Zn–Pb (Ag) mineralization, Takab–Takht-e-Soleyman–Angouran metallogenic district

open access: yesJournal of Economic Geology, 2021
Introduction The Halab Zn–Pb (Ag) deposit, 125-km southwest of Zanjan, is located in the Takab–Takht-e-Soleyman–Angouran metallogenic district (TTAMD), Sanandaj-Sirjan zone.
Fatemeh Karami   +3 more
doaj   +1 more source

Near Infrared Spectroscopy of the Smithsonite Minerals

open access: yesJournal of Near Infrared Spectroscopy, 2008
The importance of NIR spectroscopy has been successfully demonstrated in the present study of smithsonite minerals. The fundamental observations in the NIR spectra, in addition to the anions of OH− and CO32–, are Fe and Cu in terms of cation content.
Frost, Ray   +3 more
openaire   +2 more sources

Intermediate-sulfidation epithermal base and precious metal mineralization in the Qebchaq deposit (NW Qarachaman, East Azerbaijan): Geology, mineralization, and geochemical evidence

open access: yesJournal of Economic Geology, 2023
Precious and base metal mineralization in the Qebchaq deposit occurred as brecciated quartz-sulfide veins within the Eocene tuff and lava strata, and the Oligocene quartz diorite-gabbro intrusion.
Mohammad Sohbatloo   +2 more
doaj   +1 more source

Geochemistry and Mineralogy of Zincian Dolomite in the Tangedozdan area (Fereydounshahr- West of Isfahan Province)

open access: yesJournal of Economic Geology
The Tangedozdan zinc and lead deposit is located 25 km northeast of Fereydounshahr and in the middle part of the Sanandaj-Sirjan zone. The rock units from old to new include greenish volcanics, calcareous sandstone, crystalline limestone, limestone to ...
Seyed Vahid Shahrokhi
doaj   +1 more source

Scientific, Educational, and Environmental Considerations Regarding Mine Sites and Geoheritage: A Perspective from SE Spain [PDF]

open access: yes, 2011
Should abandoned mine sites be eligible for some official protection under the umbrella of geoconservation? Providing they have enough educational and scientific value, the answer is affirmative, and we suggest that they should be granted protection ...
López Andrés, Sol   +3 more
core   +2 more sources

The Petrogeochemistry and Zircon U-Pb Age of Nephrite Placer Deposit in Xiuyan, Liaoning

open access: yesYankuang ceshi, 2019
BACKGROUND The Xiuyan placer nephrite is located in the Xiyu gully, Baisha river valley and terrace, located in Xiuyan, Liaoning Province. Currently, the primary nephrite in the Xiyu gully is regarded as the Xiuyan placer nephrite's primary deposit ...
ZHENG Fen, LIU Yan, ZHANG Hong-qing
doaj   +1 more source

Effects of Sodium Citrate on the Ammonium Sulfate Recycled Leaching of Low-Grade Zinc Oxide Ores

open access: yesHigh Temperature Materials and Processes, 2016
The effects of sodium citrate on ammonium sulfate recycled leaching of low-grade zinc oxide ores were studied. By applying various kinds of detection and analysis techniques such as chemical composition analysis, chemical phase method, scanning electron ...
Yang Kun   +5 more
doaj   +1 more source

Trace Element Composition of Stream Sediments an Integrating Factor for Water Quality [PDF]

open access: yes, 1975
Bottom sediments, suspended sediments, and water were sampled along 130 miles of the Buffalo River in northern Arkansas. The water and acid extracts of the suspended sediments and the minus 95 mesh fraction of the bottom sediments were analyzed by atomic
Bowen, William S.   +3 more
core   +2 more sources

Geochemical Study of the My Duc Pb-Zn Deposits in Vietnam [PDF]

open access: yesGeo Data
This study presents a comprehensive geochemical investigation of the undeveloped Pb-Zn mineral deposits in the My Duc area of Quang Binh Province, central Vietnam.
Injoon Kim, Hong-Jin Lee
doaj   +1 more source

Dolomitization Related to Zn-(Pb) Deposits in the Río Mundo Area (Riópar, Albacete) [PDF]

open access: yes, 2013
España. Ministerio de Economía y CompetitividadDepto. de Mineralogía y PetrologíaFac.
Cardellach, Esteve   +7 more
core  

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