Results 41 to 50 of about 1,515 (211)

A new clinopyroxene thermobarometer for mafic to intermediate magmatic systems [PDF]

European Journal of Mineralogy, 2021
Clinopyroxene-only thermobarometry is one of the most practical tools to reconstruct crystallization pressures and temperatures of clinopyroxenes. Because it does not require any information of coexisting silicate melt or other co-crystallized mineral ...
X. Wang, T. Hou, T. Hou, M. Wang, C. Zhang, Z. Zhang, R. Pan, F. Marxer, H. Zhang   +8 more
doaj   +1 more source

Establishing a protocol for the selection of zircon inclusions in garnet for Raman thermobarometry

, 2020
The structural and chemical properties of zircon inclusions in garnet megablasts from the Dora Maira Massif (Western Alps, Italy) were characterized in detail using charge contrast imaging, Raman spectroscopy, and laser ablation inductively coupled ...
Hermann J., Mihailova, Boriana, Campomenosi, Nicola, Campomenosi N., Alvaro M., Hermann, Joerg, Rubatto D., Rubatto, Daniela, Alvaro, Matteo, Scambelluri M., Scambelluri, Marco, Mihailova B.   +11 more
core   +1 more source

Resetting of zircon inclusions in garnet: Implications for elastic thermobarometry

, 2023
Elastic thermobarometry of host-inclusion systems for back-calculating pressure (P) and temperature (T) conditions of inclusion entrapment relies on the assumption that the hostinclusion rheology is purely elastic.
Campomenosi N., Alvaro M., Mihailova B., Angel R. J.   +3 more
core   +1 more source

Magma Plumbing During the 2014–2015 Eruption of Fogo (Cape Verde Islands)

Frontiers in Earth Science, 2020
Phenocrysts in volcanic rocks are recorders of magmatic processes that have occurred at depth before and during a volcanic eruption. Our petrological investigations of stratigraphically controlled tephrite and phonotephrite samples from the latest ...
Andreas Klügel, Simon Day, Markus Schmid, Bruno Faria   +3 more
doaj   +1 more source

Petrography, geochemistry and mineral chemistry of the Almogholagh intrusive rocks (Hamedan, Iran): Evidences for their shallow-level emplacement [PDF]

پترولوژی, 2018
The Almogholagh plutonic body with about 10 km2 is located 15 km of West of Hamedan city and on the Sanandaj-Sirjan zone. The Almogholagh pluton consists of diorite and gabbroic diorite, monzodiorite, quartz monzodiorite, monzonite, quartz monzonite ...
Hossein Shahbazi, Amin Bahmanpour, Mohammad Nour Mohammadi, Ali Dehdar, Farhad Aliani, Ashraf Tourkian, Leyli Izadi Kilan   +6 more
doaj   +1 more source

Garnet Chemical Zoning Based Thermobarometry: Method Evaluation and Applications in the Menderes Massif, Western Turkey

Geosciences, 2021
The garnet chemical zoning method (GZM) is a reliable thermodynamic approach for forward modeling pressure-temperature (P-T) paths using observed garnet and bulk rock compositions.
Thomas M. Etzel, Elizabeth J. Catlos
doaj   +1 more source

COMPLICATED THERMAL HISTORY OF THE LITHOSPHERIC MANTLE OF THE ANABAR REGION: RECONSTRUCTIONS BASED ON XENOCRYSTS FROM KIMBERLITES

Геодинамика и тектонофизика
The thermal history and thickness of the lithospheric mantlebeneath the kimberlite fields of the Eastern Anabar shield and adjacent territories of the Siberian craton were reconstructed based on the composition of clinopyroxene xenocrysts from the ...
А. M. Dymshits, E. A. Gladkochub, S. I. Kostrovitsky   +2 more
doaj   +1 more source

Estimation of P-T entrapment conditions of a subduction fluid using elastic thermobarometry: A case study from Cabo Ortegal Complex, Spain [PDF]

, 2023
Fluid and mineral inclusions in metamorphic rocks allow the understanding of fluid-involved processes in subduction-zones providing essential contributions to the nature of geochemical processes and element cycling in present day subduction zones.
Csaba Szabó, Márta Berkesi, Spránitz, Tamás, Konečný, Patrik, Spranitz T., Alvaro, Matteo, Matteo Alvaro, Vaczi T., Tamás Váczi, Tamás Spránitz, Blazekova M., Berkesi M., Berkesi, Márta, Mattia Gilio, Szabo C., Alvaro M., Patrik Konečný, Gilio M., Konecny P., Gilio, Mattia, Blažeková, Michaela, Szabó, Csaba, Michaela Blažeková, Váczi, Tamás   +23 more
core   +1 more source

High‐Resolution P‐T‐Time Paths Across Himalayan Faults Exposed Along the Bhagirathi Transect NW India: Implications for the Construction of the Himalayan Orogen and Ongoing Deformation

Geochemistry, Geophysics, Geosystems, 2020
Pressure‐temperature (P‐T) conditions and high‐resolution paths from 11 garnet‐bearing rocks collected across Himalayan fault systems exposed along the Bhagirathi River (Uttarakhand, NW India) reveal the tectonic conditions responsible for their growth ...
Elizabeth J. Catlos, Theresa J. Perez, Oscar M. Lovera, Chandra Shekhar Dubey, Axel K. Schmitt, Thomas M. Etzel   +5 more
doaj   +1 more source

Application of Clinopyroxene Chemistry for Investigation of the physical conditions of ascending magma, a case study of volcanic rocks in the Aliabad area (Northwest of Nain)

Journal of Economic Geology, 2020
Introduction The Aliabad area is located in the northwest of Nain. Volcanic rocks of the Aliabad area have andesitic to rhyolitic composition. On the basis of petrographic investigations, porphyritic texture is the main texture of these rocks.
Rezvan Mehvari, Mortaza Sharifi
doaj   +1 more source