Results 31 to 40 of about 14,747 (240)
Two generations of scapolite at Snezhnoe ruby deposit, Central Pamir
Известия высших учебных заведений: Геология и разведка, 2017 At Snezhnoe ruby deposit, localized in the eastern part of the tectonic zone of Central Pamir, two generations of sсapolite have been discovered by the textural and structural features.
A. K. Litvinenko +2 more
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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
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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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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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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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The 1.79 Ga Särkilahti leucogranite – a horizontal magma layer below granulite-grade migmatites in SE Finland [PDF]
Bulletin of the Geological Society of Finland, 2019 The heterogeneous, peraluminous Särkilahti garnet-cordierite leucogranite occupies ~ 75 km2 area in Svecofennian granulite-grade terrain of SE Finland. Country rocks are metasedimentary garnet-cordierite-biotite migmatites with some orthopyroxenegarnet ...
Hannu Mäkitie +3 more
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Comparative study on coal rank gradient under different types of metamorphism
Meitan kexue jishuCoal rank gradient is fundamental for predicting the degree of coalification in deep reservoirs. This study, based on the measured maximum reflectance of vitrinite of 85 sets, the maximum reflectance of vitrinite /dry ash-free basis volatile yield of 2 ...
Jielin LU +4 more
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Fluid inclusions in rocks of the Archean high-grade Varpaisjärvi-Lapinlahti area, central Finland [PDF]
Bulletin of the Geological Society of Finland, 1992 Fluid inclusions both in matrix quartz of metamorphic rocks and in quartz veins from five samples from the Archean high-grade Varpaisjärvi-Lapinlahti area were examined with microthermometric methods. Two types of fluid inclusions were observed: CO2-rich
M. Poutiainen
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