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 ...
Pedro Waterton +2 more
exaly +3 more sources
Nanoscale solid-fluid interaction and amphibole formation in the lithospheric mantle [PDF]
Scientific ReportsNanoscale amphibole nucleation and growth in the Earth’s mantle is poorly understood despite its important role in the evolution and stability of the lithosphere, along with its influence on the coexisting fluid composition.
Thomas Pieter Lange +7 more
doaj +2 more sources
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 +2 more
doaj +1 more source
Geophysical Monograph Series, Page 137-165., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov +3 more
wiley +3 more sources
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 +5 more
doaj +1 more source
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
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
PHYSICO-CHEMICAL CONDITIONS OF CRYSTALLIZATION OF MINERALS-PHENOCRYSTS IN BASALTIC COMPLEXES HOSTING MASSIVE SULFIDE DEPOSITS OF THE URALS AND SIBERIA [PDF]
Минералогия, 2020 The paper discusses the physico-chemical formation conditions of minerals-phenocrysts in basaltic complexes, which host massive sulfide deposits of the Urals and Siberia. It is found as a result of study of melt inclusions that clinopyroxene from basalts
V.A. Simonov, V.V. Maslennikov
doaj +1 more source
Environmental Effects of Volcanic Volatile Fluxes From Subaerial Large Igneous Provinces
Geophysical Monograph Series, Page 103-116., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Tamsin A. Mather, Anja Schmidt
wiley +1 more source
Brazilian Journal of Geology, 2020 Macrocryst assemblages of porphyritic alkaline dikes in the Mantiqueira range (SE Brazil) are mainly composed of clinopyroxene and olivine with different origins.
Júlio César Lopes da Silva +4 more
doaj +1 more source