Results 41 to 50 of about 10,830 (246)
Journal of Metamorphic Geology, Volume 43, Issue 7, Page 681-705, September 2025.ABSTRACT To gain insights into the pressure–temperature evolution of a scarcely studied portion of the Variscan basement of Corsica in southern Europe, we combined phase equilibrium modelling, Zr‐in‐rutile thermometry and apatite‐in‐garnet elastic barometry. We investigated Grt‐St micaschist rocks containing garnet grains of several millimetres in size
Lorenzo Dulcetta +6 more
wiley +1 more source
Geologica Carpathica, 2014 Paleocene to Oligocene tectonic processes in northwest Iran resulted in extensive I-type calc-alkaline and alkaline magmatic activity in the Ahar region.
Mollai Habib +2 more
doaj +1 more source
Mineralogy and Genesis of Joveinan Iron Skarn (Cenozoic Magmatic Arc, North of Isfahan) [PDF]
پترولوژی, 2017 Joveinan marbles and skarns are located 5 km NE of Ghohrood and 140 km NW ofIsfahan in the *central part of Urumieh- Dokhtar magmatic arc. Intrusion of Ghohroodgranitoid into the Cretaceous carbonate rocks caused the contact metamorphism andformation of ...
Shahzad Sherafat +1 more
doaj +1 more source
Meteoritics &Planetary Science, Volume 60, Issue 9, Page 1953-1969, September 2025.Abstract Multiple generations of calcite and dolomite precipitated in CM chondrites during ice melting events that led to episodes of liquid water. Models and laboratory analysis have suggested a long‐term transition from oxidizing to reducing conditions during aqueous alteration on the CM parent body.
Elizabeth Bailey +3 more
wiley +1 more source
Геофизический журнал, 2019 Prospects for the search for gold deposits within the limits of the Lypovenky-Sukhiy Tashlyk area of the Golovanivsk suture zone (GSZ) of the Ukrainian Shield (USh) have been considered, where in the 80―90s of the last century North Capitanian gold ...
V.N. Pavlyuk +3 more
doaj +1 more source
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.Abstract To date, the generation of natural hydrogen (H2) from the alteration of FeII‐bearing minerals has mainly been studied through serpentinization in (ultra)mafic rocks. This study explores Banded Iron Formations (BIF), which are rich in FeII minerals, as a potential source for H2.
U. Geymond +5 more
wiley +1 more source
Study of specifications of the second index Baba-Ali,unusual magnetite-limonite layered deposit (Hamedan province) [PDF]
پترولوژی, 2018 Baba Ali Index 2, iron deposit is located in the northwest of Hamedan province and the southwestern of Baba Ali village in the Sanandaj-Sirjan structural zone.
Mehrdad Barati +2 more
doaj +1 more source
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.Abstract Correlation of ignimbrite units at polygenic calderas is mandatory for the reconstruction of caldera‐forming events and proper identification of their eruption dynamics. However, ignimbrites erupted at different times from the same caldera can display similarities in composition and lithology that can hamper proper correlation of outcrops ...
Arianna Beatrice Malaguti +5 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.Abstract The Kallianos Au‐Ag‐Te deposit is a Cenozoic orogenic‐style deposit on Evia, hosted in the Cycladic Blueschist Unit. Integrated field observations and isotopic data illustrate a connection between the structural architecture that hosts mineralization in the deposit and the regional stress field associated with a crustal‐scale detachment, the ...
L. Hamel +3 more
wiley +1 more source
Руды и металлыThe Gurvunur apatite-magnetite deposit is located within the Ozerny ore cluster in Western Transbaikalia. A peculiarity of this object is the presence of rare-earth mineralization in the ores. The main REE concentrator minerals include monazite, allanite,
Izvekova A. D. +2 more
doaj +1 more source