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The Effects of Retrograde Reactions and of Diffusion on 40Ar-39Ar Ages of Micas [PDF]

, 2017
The effects of metamorphic reactions occurring during decompression were explored to understand their influence on the 40Ar-39Ar ages of micas. Monometamorphic metasediments from the Lepontine Alps (Switzerland) reached lower amphibolite facies during ...
Allaz, J., Berger, A., Engi, M., Villa, I. M. +3 more
core

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley +1 more source

Application of Clinopyroxene Chemistry to Interpret the Physical Conditions of Ascending Magma, a Case Study of Eocene Volcanic Rocks in the Ghohrud Area (North of Isfahan)

Journal of Economic Geology, 2016
Introduction Volcanic rocks with a porphyritic texture have experienced two crystallization stages. The first is slow, resulting in phenocrysts, and the second, which took place at, or near the surface, or during intrusion into a cooler body of rock ...
Mohammad Sayari, Mortaza Sharifi
doaj

Mineral chemistry of clinopyroxene: guidance on geo- thermobarometry and tectonomagmatic setting of Nabar volcanic rocks, South of Kashan

Journal of Economic Geology, 2017
Introduction The Nabar area that is a part of the Urumieh- Dokhtar volcano- plutonic belt is located in the south of Kashan. Research works such as Emami (Emami, 1993) and Abbasi (Abbasi, 2012) have been done about the geology of this area.
Rezvan Mehvari +5 more
doaj +1 more source

Robust thermobarometry: constraints on the physical state of the mantle beneath the Kaapvaal craton