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American Mineralogist, 2021
AbstractThe timescales of magmatic processes within a volcanic system may be variable over a volcano’s geological history. Crystals reflect environmental perturbations under which they grew, and compositional gradients quenched inside crystals on eruption can be exploited to extract timescales of magmatic processes. Here, we use multi-element diffusion
Alberto Caracciolo +5 more
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AbstractThe timescales of magmatic processes within a volcanic system may be variable over a volcano’s geological history. Crystals reflect environmental perturbations under which they grew, and compositional gradients quenched inside crystals on eruption can be exploited to extract timescales of magmatic processes. Here, we use multi-element diffusion
Alberto Caracciolo +5 more
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Testing Orthopyroxene Diffusion Chronometry on Rocks From the Lanzo Massif (Italian Alps)
Journal of Geophysical Research: Solid Earth, 2019AbstractRocks from the northern and central zones of the Lanzo peridotite massif contain large (>3 mm) orthopyroxene crystals, often within a fine‐grained matrix. The rocks have been decompressed and cooled from the spinel peridotite field, via plagioclase peridotite to near the ocean floor. Orthopyroxene preserves evidence of the early part of this
Michael C. Jollands, Othmar Müntener
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Moscow University Bulletin. Series 4. Geology, 2018
Zoned crystals record changes in magma evolution, such as injection of mafic magma into a shallow magma chamber, which often triggered to eruption of arc volcanoes. We applied diffusion chronometry for reverse zoned crystals of orthopyroxene from 6 eruptions of Bezymianny volcano during 2006–2012 years and showed correlation between time of injection ...
V. O. Davydova +2 more
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Zoned crystals record changes in magma evolution, such as injection of mafic magma into a shallow magma chamber, which often triggered to eruption of arc volcanoes. We applied diffusion chronometry for reverse zoned crystals of orthopyroxene from 6 eruptions of Bezymianny volcano during 2006–2012 years and showed correlation between time of injection ...
V. O. Davydova +2 more
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The principles of diffusion chronometry and applications in magmatic systems
Acta Petrologica Sinica, 2022CHEN HouBin, JI WeiQiang, ZHANG ShaoHua
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Geology
Abstract Ultrahigh-temperature (UHT) metamorphism (≥900 °C) represents the most extreme thermal regime in the continental crust. Whether such conditions occurred as brief pulses (<1 m.y.) during the Precambrian, as observed in some Phanerozoic orogens, remains unresolved.
Yi Zou +5 more
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Abstract Ultrahigh-temperature (UHT) metamorphism (≥900 °C) represents the most extreme thermal regime in the continental crust. Whether such conditions occurred as brief pulses (<1 m.y.) during the Precambrian, as observed in some Phanerozoic orogens, remains unresolved.
Yi Zou +5 more
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Submarine volcanoes make up ~75% of volcanism on Earth, yet they are one of the least explored volcanic features. Our understanding of these eruptions is limited due to challenges in monitoring these often remote volcanos with summits deep underwater.
Karoline Brückel +6 more
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Karoline Brückel +6 more
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Diffusion Chronometry-Constraining Metamorphic Timescales to Understand Tectonics
Understanding Earth’s tectonic processes is contingent on constraining their rates and durations. The timescale of metamorphism (i.e., for how long a rock is subjected to high pressure and temperature) is indicative of how heat and mass transfer during a tectonic event.openaire +1 more source
The dichotomous nature of Mg-in-plagioclase partitioning: Implications for diffusion chronometry
Goldschmidt2022 abstracts, 2022Euan Mutch +2 more
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