Results 31 to 40 of about 9,629,822 (348)

Jarosite versus Soluble Iron-Sulfate Formation and Their Role in Acid Mine Drainage Formation at the Pan de Azúcar Mine Tailings (Zn-Pb-Ag), NW Argentina [PDF]

open access: yes, 2014
Secondary jarosite and water-soluble iron-sulfate minerals control the composition of acid mine waters formed by the oxidation of sulfide in tailings impoundments at the (Zn-Pb-Ag) Pan de Azúcar mine located in the Pozuelos Lagoon Basin (semi-arid ...
Alicia Kirschbaum   +5 more
core   +3 more sources

Mineralogical characteristics of Suhostrel bituminous coal, SW Bulgaria

open access: yesReview of the Bulgarian Geological Society, 2023
The mineralogical composition of the Suhostrel bituminous coal was studied using optical microscopy, XRD and SEM-EDS analyses. Clay minerals (mostly kaolinite and mica), quartz and locally albite, are the dominant minerals. Their characteristics indicate predominant terrigenous origin and together with a poor accessory mineral association (rutile ...
Alexander Zdravkov, Denislav Yanchev
openaire   +1 more source

Complex examination of the Upper Paleozoic siliciclastic rocks from southern Transdanubia, SW Hungary—Mineralogical, petrographic, and geochemical study [PDF]

open access: yes, 2007
A vertical section of Upper Paleozoic sandstones from southern Transdanubia (Mecsek-Villány area, Tisza mega-unit, Hungary) has been analyzed for major and trace elements, including rare earth elements (REEs).
Á   +35 more
core   +1 more source

Ferromanganese nodules and micro-hardgrounds associated with the Cadiz Contourite Channel (NE Atlantic): Palaeoenvironmental records of fluid venting and bottom currents [PDF]

open access: yes, 2012
Ferromanganese nodule fields and hardgrounds have recently been discovered in the Cadiz Contourite Channel in the Gulf of Cadiz (850–1000 m). This channel is part of a large contourite depositional system generated by the Mediterranean Outflow Water ...
Abouchami   +159 more
core   +2 more sources

Contamination of surface waters by mining wastes in the Milluni Valley (Cordillera Real, Bolivia): Mineralogical and hydrological influences [PDF]

open access: yes, 2008
This study is one of very few dealing with mining waste contamination in high altitude, tropical-latitude areas exploited during the last century. Geochemical, mineralogical and hydrological characterizations of potentially harmful elements (PHEs) in ...
Isaure, Marie-Pierre   +3 more
core   +3 more sources

Mineralogical and geochemical characteristics of altered volcanic ashes (tonsteins and K-bentonites) from the latest Permian coal-bearing strata of western Guizhou Province, southwestern China

open access: yesInternational Journal of Coal Geology, 2021
Although the geochemical and mineralogical characteristics and provenance of Permian-Triassic boundary (PTB) widespread volcanic ashes from southern China have been well investigated, the volcanic ashes just prior to the end-Permian mass extinction (EPME)
Ming-Neng Shen   +11 more
semanticscholar   +1 more source

Effect of weathering product assemblages on Pb bioaccessibility in mine waste: implications for risk management [PDF]

open access: yes, 2013
General assessments of orebody types and associated mine wastes with regards to their environmental signature and human health hazards are needed to help managing present and historical mine waste facilities.
Cave, Mark R.   +3 more
core   +2 more sources

Mineralogical Characteristics and Color Genesis of Vesuvianite Jade from Hanzhong, Shaanxi Province, China

open access: yesCrystals
A new type of vesuvianite jade has recently been discovered in Hanzhong City, Shaanxi Province, China. However, a systematic investigation into its mineralogical characteristics and the origin of its color is currently lacking.
Ye Yuan   +4 more
doaj   +1 more source

ASSESSMENT OF LANDSCAPE SENSITIVITY BASED ON GEOCHEMICAL CHARACTERISTICS OF SEDIMENTS (KREMNA BASIN, SERBIA) [PDF]

open access: yesNatural Resources and Sustainable Development, 2018
The scale of human impacts on the natural environment is now considerably larger than at any point in history. The concept of geomorphic sensitivity can help to understand the rate, magnitude and nature of landscape adjustment to perturbation in a given ...
Kašanin-Grubin Milica   +6 more
doaj   +1 more source

Comparison of technical and short-term environmental characteristics of weathered and fresh blast furnace slag aggregates for road base applications in South Africa

open access: yesCase Studies in Construction Materials, 2019
This study investigated chemical, physical-mechanical and environmental characteristics of weathered blast furnace slag (WBFS) and freshly produced slag (FBFS) for their potential utilisation as granular road base and subbase aggregates.
C. Kambole   +4 more
doaj   +1 more source

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