Results 21 to 30 of about 298,446 (259)

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

Distribution of rare earth elements in Ruska Poliana granites and accessory fluorites

open access: yesМінеральні ресурси України, 2019
Fluorite is one of the main concentrators of rare earth elements (REE) in the granites of the Ruska Polіana massif of the Korsun-Novomyrhorod pluton of the Ukrainian Shield. Despite its distribution in the granites of the massif, the geochemical features
O. M. Ponomarenko   +4 more
doaj   +1 more source

Th e age of detrital zircon from metasedimentary rocks of the Ternuvate strata (West Azov block of the Ukrainian Shield)

open access: yesДоповiдi Нацiональної академiї наук України, 2023
The Ternuvate strata comprise metamorphic rocks that make up the Haichur arcuate structure, which is about 72 km long. Its western part lies within the Andriivka fault zone, which separates the Vovcha and Huliaipole blocks, while the eastern part is ...
G.V. Artemenko   +2 more
doaj   +1 more source

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

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

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

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

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

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

MINERALOGICAL AND TEXTURAL EVOLUTION OF THE ECONOMIC MANGANESE MINERALIZATION IN WESTERN RHODOPE MASSIF, N GREECE [PDF]

open access: yes, 1991
The western Rhodope massif contains a significant number of 'battery grade' Mn-oxide deposits which are best developed in the area near Kato Nevrokopi, Drama district, N. Greece.
Nimfopoulos, M K, Pattrick, R A D
core   +1 more source

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