Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ekaterina P. Reguir"'
Publikováno v:
Minerals, Vol 8, Iss 11, p 481 (2018)
Zircon macrocrysts in (sub)volcanic silica-undersaturated rocks are an important source of information about mantle processes and their relative timing with respect to magmatism. The present work describes variations in trace element (Sc, Ti, Y, Nb,
Externí odkaz:
https://doaj.org/article/c9348de277194ca09c32a1ec15d55053
Autor:
E. B. Sal’nikova, Panseok Yang, Anton R. Chakhmouradian, A. B. Kotov, Ekaterina P. Reguir, Irina T. Rass, M. V. Stifeeva
Publikováno v:
Mineralogical Magazine. 85:469-483
This work is the first in situ U–Pb geochronological study of perovskite and calcic garnet (andradite) from the Guli complex in the Maimecha–Kotuy alkaline province (Polar Siberia, Russia). The U–Pb isotopic compositions of perovskite from cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79cbd1cff0fb97c086a1ec9ea3febb9
https://doi.org/10.1180/mgm.2021.53
https://doi.org/10.1180/mgm.2021.53
Autor:
Wissale Boukirou, Mohammed Bouabdellah, Anton R. Chakhmouradian, Abdellah Mouttaqi, Ekaterina P. Reguir, Folkmar Hauff, Michel Cuney, Michel Jébrak, Johan Yans, Kaj Hoernle
Publikováno v:
Chemical Geology. 594
The Gleibat Lafhouda dolomite carbonatites of the Moroccan Sahara occur as three separate cone-shaped plugs intruding an autochthonous succession of Archean supracrustal basement rocks. Geochemically, the Gleibat Lafhouda dolomite carbonatites are ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85f45c288993d1276e861668600cf949
https://researchportal.unamur.be/en/publications/b7684df5-d69b-4d5a-aaf8-94757bcb0461
https://researchportal.unamur.be/en/publications/b7684df5-d69b-4d5a-aaf8-94757bcb0461
Autor:
Anton R. Chakhmouradian, M. V. Stifeeva, Anatoly V. Nikiforov, E. B. Sal’nikova, Ekaterina P. Reguir, A. B. Kotov, Yulia D. Gritsenko
Publikováno v:
Lithos. :141-154
This contribution presents U-Pb geochronological data for Ca-Fe-Ti garnets from compositionally diverse alkaline and carbonatitic intrusive rocks ranging from Neoarchean to Permian-Triassic (Cinder Lake and Eden Lake in Manitoba, Canada; Belaya Zima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7904852d90b76045ca0af5cd9b99fb99
https://doi.org/10.1016/j.lithos.2019.03.032
https://doi.org/10.1016/j.lithos.2019.03.032
Autor:
Anton R. Chakhmouradian, V. A. Glebovitsky, M. V. Stifeeva, E. B. Sal’nikova, Ekaterina P. Reguir
Publikováno v:
Doklady Earth Sciences. 478:148-151
The geochronological U–Pb study of shorlomite from igneous rocks of the alkali–ultramafic Afrikanda massif (Kola Peninsula) was performed. The results demonstrate the reliability of calcium garnet as a mineral for the U–Pb geochronology of a wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f4c949430da6c23854211e3ffa1eaad
https://doi.org/10.1134/s1028334x18020083
https://doi.org/10.1134/s1028334x18020083
Publikováno v:
American Mineralogist. 102:1340-1352
Zoned crystals of carbocernaite occur in hydrothermally reworked burbankite-fluorapatite-bearing calcite carbonatite at Bear Lodge, Wyoming. The mineral is paragenetically associated with pyrite, strontianite, barite, ancylite-(Ce), and late-stage ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a483ceaa524f3d3509fdeed7dd268bc
https://doi.org/10.2138/am-2017-6046
https://doi.org/10.2138/am-2017-6046
Publikováno v:
Mineralogy and Petrology. 110:361-377
The composition of calcite and dolomite from several carbonatite complexes (including a large set of petrographically diverse samples from the Aley complex in Canada) was studied by electron-microprobe analysis and laser-ablation inductively-coupled-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17ad8637e3d35efa95e86b50168041e8
https://doi.org/10.1007/s00710-015-0392-4
https://doi.org/10.1007/s00710-015-0392-4
Autor:
Ekaterina P. Reguir, Jeremy Crozier, Panseok Yang, Laura K. Pisiak, Ravinder Sidhu, Ryan D. Kressall, Anton R. Chakhmouradian
Publikováno v:
Ore Geology Reviews. 64:642-666
The Aley Nb deposit in northern British Columbia, Canada, is hosted by metamorphosed calcite and dolomite carbonatites of anorogenic affinity emplaced in Lower Paleozoic sedimentary carbonate rocks in the Devonian. Primary Nb mineralization consists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcc777cba8e0b70dad246d5e52a1f2af
https://doi.org/10.1016/j.oregeorev.2014.04.020
https://doi.org/10.1016/j.oregeorev.2014.04.020
Autor:
Anton R. Chakhmouradian, Emma Humphreys-Williams, Evgeny S. Bogomolov, Olga A. Zaitseva, Ekaterina P. Reguir, Michael Leach, Anton I. Savchenok, Joshua Mwankunda, Anatoly N. Zaitsev, Larissa Leach, Stanislav Strekopytov, A. A. Arzamastsev, Victor V. Sharygin, Lindsay J. McHenry, John Spratt
Publikováno v:
Journal of African Earth Sciences. 158:103561
The Upper Laetolil marker Tuffs 1 to 8 are mineralogically similar rocks, but heterogeneous in terms of their texture, structure, proportion of primary minerals, volume of cement and degree of low-temperature alteration. Originally they were deposite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14fa161752e4fbc832cb91319ea21e28
https://doi.org/10.1016/j.jafrearsci.2019.103561
https://doi.org/10.1016/j.jafrearsci.2019.103561
Autor:
Alexander V. Golovin, Ekaterina P. Reguir, Victor V. Sharygin, Anton R. Chakhmouradian, Vadim S. Kamenetsky
Publikováno v:
Chemical Geology. 353:112-131
Perovskite is a common groundmass phase in many mantle-derived undersaturated rocks (e.g., kimberlites), serving as an important repository for rare-earth elements (REE), high-field-strength elements (especially, Ti, Nb and Ta), Th and U. Perovskite-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::038a8254ca22e08bfd833035f464f62e
https://doi.org/10.1016/j.chemgeo.2013.01.007
https://doi.org/10.1016/j.chemgeo.2013.01.007