Results 11 to 20 of about 24,088 (309)

Pressure‐Induced sp 2 ‐sp 3 Transitions in Carbon‐Bearing Phases

open access: yesGeophysical Monograph Series, Page 1-9., 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 ...
Sergey S. Lobanov   +1 more
wiley  

+7 more sources

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 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.
Jessica H. Whiteside   +3 more
wiley  

+5 more sources

Pyroxene chemistry of xenoliths related to volcanic rocks in the Eslamieh Peninsula (Saray volcano): Implications for geothermobarometry and tectonic setting [PDF]

open access: yesعلوم زمین خوارزمی, 2023
The high K-volcanic rocks of the Eslamieh Peninsula (Saray) are exposed in the northwestern Urumieh-Dokhtar magmatic belt. They mainly include phonolitic lavas and related xenoliths.
Pouya Besharati   +2 more
doaj  

The Cuitzeo granitic xenolith: evidence of an Early Miocene magma plumbing system in central Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2021
Relevant data on the structure and composition of the crystalline basement in Central México can be found by means of plutonic, metamorphic, and sedimentary xenoliths transported by Neogene and Quaternary volcanic eruptions within the Trans-Mexican ...
María del Sol Hernández-Bernal   +6 more
doaj   +1 more source

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

open access: yes, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V.   +4 more
core   +1 more source

POSSIBLE EVIDENCE FOR THE EXISTENCE OF VOLCANOGENIC MAGMATISM IN THE SINYAYA RIVER BASIN AT THE SOUTHERN FLANK OF THE VILYUI SYNECLISE

open access: yesГеодинамика и тектонофизика, 2023
The results of different-extension geological survey, exploration and thematic work methods show that the Vilyui syneclise is relatively amagmatic. However, the recent factual evidence in this region indicates the occurrence of magmatism of a different ...
V. V. Baranov   +7 more
doaj   +1 more source

How is carbonate crust digested by magma?

open access: yesFrontiers in Earth Science, 2023
Magma’s volatile budget depends on deep magmatic sources, the degree of differentiation and degassing conditions, and volatile input from the assimilated crust.
Anastassia Y. Borisova, Wendy A. Bohrson
doaj   +1 more source

The lithospheric mantle and lower crust-mantle relationships under Scotland: a xenolithic perspective [PDF]

open access: yes, 2011
In the British Isles the majority of volcanic rocks containing upper mantle and lower crustal xenoliths occur in Scotland. Most of the occurrences are of Carboniferous–Permian age.
Arai   +17 more
core   +1 more source

THE NATURE OF ULTRAMAFIC XENOLITHS IN THE BASALTS OF LANZAROTE ISLAND (CANARY ARCHIPELAGO)

open access: yesГеодинамика и тектонофизика, 2022
Mineralogical and geochemical study was performed on peridotite xenolith hosted by amygdaline basalts of Lanzarote Island (Canary archipelago). Their modal composition corresponds to harzburgite.
V. A. Krylova   +2 more
doaj   +1 more source

Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]

open access: yes, 2001
Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr.   +2 more
core   +1 more source

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