Results 21 to 30 of about 48,492 (250)
Research of vitrinite and fusinite coals for predicting geological hazards in coal seams
Мінеральні ресурси України, 2020 To establish the necessity of dividing fossil coals into vitrinitic and fusinitic varieties in order to identify the hazardous properties of coal seams during mining. Methodology.
М. I. Antoshchenko +3 more
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Time's arrow, time's cycle: Granulite metamorphism and geodynamics
Mineralogical magazine, 2019 Although the thermal evolution of the mantle before c. 3.0 Ga remains unclear, since c. 3.0 Ga secular cooling has dominated over heat production—this is time's arrow.
Michael Brown, T. Johnson
semanticscholar +1 more source
Mesostructural paragenesises of the southeastern part of the Ebeta antiform (Northern Kazakhstan)
Известия высших учебных заведений: Геология и разведка, 2015 Data on a geoiogical structure and evolution of mesostructural complexes of a southeast part of the Ebeta antiformhas been provided. Multistage nature of the deformations and a metamorphism of a Mamyt metamorphic complex and its frame have been ...
B. G. Golionko, O. A. Artemova
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Study of Events and Phases in Robat-e Zengejeh Area (Southwestern Bardaskan) [PDF]
Journal of Sciences, Islamic Republic of Iran, 2017 Robat-e Zengejeh rocks affected by a variety of events began from Precambrian. This research studied preserved effects of the events. Regional metamorphism is the oldest event in this rocks include schist, amphibolite and orthogneiss, that reached up to ...
M. Jamshidibadr, N. S. Faramarzi
doaj
Reflection of sequence of geodynamic processes in geological structure of the Bug area
Геофизический журнал, 2019 The age of formations composing granulite blocks of the Ukrainian Shield is a pro-blem for disputes. In order to ascertain the primary genesis and conditions of transduction of the Bug area rocks it is proposed to find out how was deep process realized ...
O. V. Usenko
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Геодинамика и тектонофизика, 2015 The information on the XXIV AllRussia youth conference on structure of lithosphere and geodynamics is presented. It was held on April 19–24, 2011 at the Institute of the Earth’s Crust, Irkutsk. The scope of conference is presented.
Victoria A. Khak
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Journal of Economic Geology, 2010 Barika gold (and silver) rich massive sulfide deposit is located 18 km east of Sardasht, north western part of Sanandaj-Sirjan metamorphic zone. Rock units outcropped in this area are Cretaceous metamorphosed volcano-sedimentary rocks in green schist ...
Hossein Ali Tajeddin +3 more
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Matching of images based on their diffeomorphic mapping [PDF]
Компьютерная оптика, 2018 We discuss a problem of comparison of two diffeomorphic images, namely, the source and target images of a diffeomorphism, which are given by two sets of points.
Sergej Lejhter, Sergey Chukanov
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Experimental study and weighting analysis of factors influencing gas desorption
Frontiers in Earth Science, 2023 Gas is one of the necessary contributing factors for coal and gas outburst accidents, and the gas desorbed in coal is the energy carrier in the outburst process.
Xin He +6 more
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Frontiers in Earth Science, 2020 The role of near-surface snow processes for the formation of climate signals through densification into deep polar firn is still barely understood. To this end we have analyzed a shallow snow pit (0-3 meters) from EastGRIP (Greenland) and derived high ...
Maurine Montagnat +6 more
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