Results 21 to 30 of about 6,856 (206)

Mapping Listvenite Occurrences in the Damage Zones of Northern Victoria Land, Antarctica Using ASTER Satellite Remote Sensing Data

Remote Sensing, 2019
Listvenites normally form during hydrothermal/metasomatic alteration of mafic and ultramafic rocks and represent a key indicator for the occurrence of ore mineralizations in orogenic systems.
Amin Beiranvand Pour, Yongcheol Park, Laura Crispini, Andreas Läufer, Jong Kuk Hong, Tae-Yoon S. Park, Basem Zoheir, Biswajeet Pradhan, Aidy M. Muslim, Mohammad Shawkat Hossain, Omeid Rahmani   +10 more
doaj   +1 more source

VIS-NIR-SWIR spectroscopic mapping for classification of hydrothermal-metasomatic alterations on the flanks of the Stolbovoe uranium deposit (Eastern Cis-Sayan)

Известия высших учебных заведений: Геология и разведка, 2022
Background. The Stolbovoe deposit is located in the northern part of the Eastern Sayan, in the Nizhneudinsky district of the Irkutsk region, within the N-47-IX map sheet. The surveying of the territory began in the sixties of the last century.
E. N. Karmanov, N. V. Ledeneva, V. A. Rassulov, A. V. Tomashev   +3 more
doaj   +1 more source

Metasomatic Alteration of Type 3 Ordinary and Carbonaceous Chondrites [PDF]

Space Science Reviews
Abstract Metasomatism refers to the process during which a pre-existing rock undergoes compositional and mineralogical transformations associated with chemical reactions triggered by the reaction of fluids which invade the protolith. It changes chemical compositions of minerals, promotes their dissolution and precipitation of new minerals. In
Krot, A, Petaev, M, Piani, L., Marrocchi, Y., Fujiya, W., Pravdivtseva, O, Dobrică, E., Vacher, L, King, A, Lee, M., van Kooten, E., Jacobsen, B., Alexander, C, Bischoff, A., Brearley, A, Le Guillou, C., Remusat, L., Leitner, J., Huss, G   +18 more
openaire   +3 more sources

Hydrothermal speleogenesis in carbonates and metasomatic silicites induced by subvolcanic intrusions: a case study from the Štiavnické vrchy Mountains, Slovakia

International Journal of Speleology, 2016
Several caves of hydrothermal origin in crystalline limestones and metasomatic silicites were investigated in the central zone of the Štiavnica stratovolcano, Štiavnické vrchy Mountains, central Slovakia.
Pavel Bella, Ľudovít Gaál, Vladimír Šucha, Peter Koděra, Rastislav Milovský   +4 more
doaj   +1 more source

THE “CLINOPYROXENE” PALEOGEOTHERM BENEATH THE OBNAZHENNAYA KIMBERLITE PIPE AND THIСKNESS OF LITHOSPHERE UNDER THE KUOYKA FIELD (SIBERIAN CRATON, YAKUTIA)

Геодинамика и тектонофизика, 2022
The mantle paleogeotherm under the Obnazhennaya kimberlite pipe (Kuoika field, Siberian craton) was reconstructed using the chemical composition of clinopyroxene xenocrystals and the FITPLOT program.
E. A. Muravjeva, A. M. Dymshits, I. S. Sharygin, A. V. Golovin, A. M. Logvinova, O. B. Oleinikov   +5 more
doaj   +1 more source

PRECIOUS-METAL MINERALIZATION AT THE WESTERN EXOCONTACT OF THE HAUTAVAARA MASSIF, SOUTH KARELIA

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
Intense silicification zones and metasomatic alterations (propylitic-type) with Au-Bi-Tebearing base-metal and sulfoarsenide mineralization were revealed at the exocontact of the Hautavaara granosyenite-monzogranite massif, South Karelia.
Людмила Владимировна Кулешевич, Олег Лавров, Антонина Дмитриева, Владимир Тытык, Lyudmila Kuleshevich, Oleg Lavrov, Antonina Dmitrieva, Vladimir Tytyk   +7 more
doaj   +1 more source

Hydrothermal alteration in the lower part of an early Proterozoic greenstone complex at Palovaara, Enontekiö, northwestern Finland [PDF]

Bulletin of the Geological Society of Finland, 1988
The lower part of the early Proterozoic greenstone complex at Palovaara, northwestern Finnish Lapland, comprises a quartzite formation overlain by intermediate and felsic tuffs and tuffites with some lava flows, mostly intermediate in chemical ...
P. Eilu, H. Idman
doaj   +1 more source

Metastable Nanosized Diamond Formation from Fluid Systems [PDF]

, 2010
The model of nanosized diamond particles formation at metastable P-T parameters from fluid is presented. It explains the specific of CVD diamond synthesis gases mixtures and hydrothermal growth of diamond at low P-T parameters as well as it explains the ...
Sergei Simakov
core   +2 more sources

On reasons of specific composition of the Keivy domain rocks (the Kola Peninsula) [PDF]

Vestnik MGTU, 2017
The Keivy domain differs from the other structures of the Kola region by the specific composition of the metamorphic complexes, the presence of the oldest for the region alkaline granites and gabbroanorthosites associated with them as well as by the ...
Kozlov N. E., Fomina E. N., Martynov E. V., Sorokhtin N. O., Marchuk T. S.   +4 more
doaj   +1 more source

Metallogenic Prediction of Magnetite in the Pandian Area at the Northwest Margin of Luxi Uplift, China: Constraints of Wide-Field Electromagnetic Data

Remote Sensing, 2023
The Pandian deposit is a newly discovered contact metasomatic skarn magnetite deposit found in the Cainozoic super-thick overburden on the northwest margin of Luxi Uplift (LXU).
Jianxin Liu, Keke Zhou, Hongda Liu, Rongwen Guo, Yunqi Zhu, Zihao Zhang, Rong Liu   +6 more
doaj   +1 more source