Results 21 to 30 of about 311,267 (287)

Assessment of microcomponent pollution of snow coverage of mountain tops of the Ukrainian Carpathians

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2021
Introduction. Today, the territory of Ukraine can be divided into urban areas and relatively clean, remote from major sources of industrial pollution, such as the Carpathian Biosphere Reserve (KBR). It should be emphasized that in this case, the analysis
Едуард Жовинський   +2 more
doaj   +1 more source

Exploration and local forecast of gold-ore deposits based on typomorphic properties of pyrite [PDF]

open access: yes, 2015
The article describes the data in exploration and local forecast of gold-ore deposits based on typomorphic pyrite properties. The pyrite properties: crystal shape, impurity-elements and thermal EMF change in relation to the deposit formation conditions ...
Abramova, Raisa Nikolaevna   +3 more
core   +1 more source

Identity Formation in Adolescence: Change or Stability? [PDF]

open access: yesJournal of Youth and Adolescence, 2009
The aim of this five-wave longitudinal study of 923 early to middle adolescents (50.7% boys; 49.3% girls) and 390 middle to late adolescents (43.3% boys and 56.7% girls) is to provide a comprehensive view on change and stability in identity formation from ages 12 to 20.
Klimstra, T.A.   +4 more
openaire   +3 more sources

Using the bioindication method for determining air pollution by heavy metals

open access: yesGeo&Bio, 2022
The results of studies of chemical pollution (Pb, Zn) of perennial grasses—Elymus repens L., Artemisia absinthium L., and Hypericum perforatum L.—on background plots and within the areas of impact of industrial enterprises in Kropyvnytskyi (Ukraine) are ...
Nataliya Kryuchenko   +2 more
doaj   +1 more source

Mineralogical petrochemical and geochemical features of near ore metasomatism in the gold ore deposit "Verkhne-Sakukanskoye" (Northern Transbaikal Region) [PDF]

open access: yes, 2006
Discussion in comparative aspect of the nature of geochemical fields in the mesothermal gold deposits formed in blacks and a crystal substratum is continued.
Kucherenko, I. V.
core   +2 more sources

In situ thermochemical sulfate reduction during ore formation at the Itxaspe Zn-(Pb) MVT occurrence (Basque-Cantabrian basin, Northern Spain) [PDF]

open access: yes, 2009
International audienceOrganic matter is thought to play a role in the genesis of many Mississippi Valley-type (MVT) deposits, acting as a reducing agent during thermochemical sulfate reduction (TSR).
Canals, Angels   +3 more
core   +8 more sources

GEOCHEMICAL TRANSFORMATION OF ENVIRONMENTAL OBJECTS WITHIN SOLID WASTE LANDFILLS (ON THE EXAMPLE OF KYIV)

open access: yesГеохімія техногенезу, 2021
The presented research is devoted to the study of geochemical transformation of environmental key objects (soils, surface and groundwater) within the solid waste landfills.
I. Kuraieva   +4 more
doaj   +1 more source

Skarns in the Kamioka mine [PDF]

open access: yes, 1964
The Kamioka mine, Gifu prefecture, working the largest lead and zinc deposit in Japan, lies in the eastern corner of the Hida gneiss complex. The skarn minerals in this mining district are genetically divided into the following three groups.
Okuno, Takaharu
core   +1 more source

Тектонічні умови формування рудовмісних структур Приазовського мегаблока Українського щита (на прикладі Дібровської) [PDF]

open access: yes, 2016
Согласно предыдущим исследованиям, структурный узор восточной части Украинского щита, формировавшийся в несколько этапов существенно сдвиговых трансформаций кристаллического основания при РТ-условиях минеральных преобразований, по совокупности данных ...
Осьмачко, Л.С.
core   +2 more sources

Applied scientific and systemic problems of the related ore-dressing plants interaction in the event of decommissioning the massif that separates their quarries [PDF]

open access: yes, 2020
Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar between the No. 3 quarry of PJSC
Azarian, Volodymyr   +5 more
core   +1 more source

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