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Clinopyroxene Dissolution Records Rapid Magma Ascent [PDF]

Frontiers in Earth Science, 2020
Magma ascent rates control volcanic eruption styles. However, the rates at which basaltic magmas ascend through the crust remain highly uncertain. Although recent studies have successfully exploited records of decompression driven degassing to estimate ...
David A. Neave, John Maclennan
doaj   +4 more sources

Natural Clinopyroxene Reference Materials for in situ Sr Isotopic Analysis via LA-MC-ICP-MS

Frontiers in Chemistry, 2020
Clinopyroxene is a major host mineral for lithophile elements in the mantle lithosphere, and therefore, its origin is vital for constraints on mantle evolution and melt generation. In situ Sr isotopic measurement of clinopyroxene has been available since
Han Zhao, Han Zhao, Han Zhao, Xin-Miao Zhao, Xin-Miao Zhao, Xin-Miao Zhao, P. J. Le Roux, Wen Zhang, Hao Wang, Hao Wang, Hao Wang, Lie-Wen Xie, Lie-Wen Xie, Lie-Wen Xie, Chao Huang, Chao Huang, Chao Huang, Shi-Tou Wu, Shi-Tou Wu, Shi-Tou Wu, Jin-Hui Yang, Jin-Hui Yang, Jin-Hui Yang, Fu-Yuan Wu, Fu-Yuan Wu, Fu-Yuan Wu, Yue-Heng Yang, Yue-Heng Yang, Yue-Heng Yang   +28 more
doaj   +2 more sources

Deep Magma Storage Revealed by Multi-Method Elemental Mapping of Clinopyroxene Megacrysts at Stromboli Volcano

Frontiers in Earth Science, 2019
The magmatic architecture and physicochemical processes inside volcanoes influence the style and timescale of eruptions. A long-standing challenge in volcanology is to establish the rates and depths of magma storage and the events that trigger eruption ...
Teresa Ubide, John Caulfield, Claire Brandt, Yannick Bussweiler, Yannick Bussweiler, Silvio Mollo, Silvio Mollo, Flavio Di Stefano, Manuela Nazzari, Piergiorgio Scarlato   +9 more
doaj   +2 more sources

Mineralogy of anorthosite veins and host gabbros in the Kal-e-Kafi intrusive body (northeast of Anarak, Isfahan Province, Central Iran)

Journal of Economic Geology, 2022
Introduction In the northeastern part of the Isfahan province and 65 km northeast of the Anarak city (Kal-e-Kafi area), an I-type granitoid pluton cross cut the Paleozoic metamorphic rocks and Eocene volcanic rocks. In the contact of this granitoid body
Hanan Salim, Ghodrat Torabi , Nargess Nosouhian   +2 more
doaj   +1 more source

A new clinopyroxene thermobarometer for mafic to intermediate magmatic systems

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 ...
Xudong Wang, T. Hou, Meng Wang, Chao Zhang, Zhaochong Zhang, Ronghao Pan, Felix Marxer, Hongluo L. Zhang   +7 more
semanticscholar   +1 more source

A Machine Learning‐Based Approach to Clinopyroxene Thermobarometry: Model Optimization and Distribution for Use in Earth Sciences

Journal of Geophysical Research - Solid Earth, 2021
Thermobarometry is a fundamental tool to quantitatively interrogate magma plumbing systems and broaden our appreciation of volcanic processes. Developments in random forest‐based machine learning lend themselves to a data‐driven approach to clinopyroxene
Corin Jorgenson, O. Higgins, M. Petrelli, Florence Bégué, L. Caricchi   +4 more
semanticscholar   +1 more source

Clinopyroxene Crystals in Basic Lavas of the Marsili Volcano Chronicle Early Magmatic Stages in a Back-Arc Transcrustal Mush System

Geosciences, 2021
Constraining the pre-eruptive processes that modulate the chemical evolution of erupted magmas is a challenge. An opportunity to investigate this issue is offered by the interrogation of the crystals carried in lavas.
Teresa Trua, Michael P. Marani
doaj   +1 more source

THE “CLINOPYROXENE” PALEOGEOTHERM BENEATH THE OBNAZHENNAYA KIMBERLITE PIPE AND THIСKNESS OF LITHOSPHERE UNDER THE KUOYKA FIELD (SIBERIAN CRATON, YAKUTIA)

Геодинамика и тектонофизика, 2022
The mantle paleogeotherm under the Obnazhennaya kimberlite pipe (Kuoika field, Siberian craton) was reconstructed using the chemical composition of clinopyroxene xenocrystals and the FITPLOT program.
E. A. Muravjeva, A. M. Dymshits, I. S. Sharygin, A. V. Golovin, A. M. Logvinova, O. B. Oleinikov   +5 more
doaj   +1 more source

Compositional Data Analysis (CoDA) of Clinopyroxene From Abyssal Peridotites

Geochemistry, Geophysics, Geosystems, 2022
We analyze a large database of abyssal peridotite clinopyroxene compositions using log‐ratio transformation, principal component analysis (PCA) and k‐means clustering, to better understand clinopyroxene compositional systematics in abyssal peridotites ...
I. Nishio, K. Itano, P. Waterton, A. Tamura, K. Szilas, T. Morishita   +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