Results 11 to 20 of about 1,808 (244)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 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.
Richard E. Ernst   +8 more
wiley  

+13 more sources

High‐Pressure Transformations and Stability of Ferromagnesite in the Earth's Mantle

open access: yesGeophysical Monograph Series, Page 105-113., 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 ...
Eglantine Boulard   +2 more
wiley  

+13 more sources

Controls on zircon age distributions in volcanic, porphyry and plutonic rocks [PDF]

open access: yesGeochronology
The distribution of zircon crystallisation ages in igneous rocks has been proposed to provide insights into the dynamics of underlying magma reservoirs.
C. Nathwani   +5 more
doaj   +1 more source

Magmatic to hydrothermal conditions in the transition from the A-type Pikes Peak granite (Colorado) to its related pegmatite

open access: yesFrontiers in Earth Science, 2022
Fluid exsolution in magmas is a process that, in many silicic upper crustal reservoirs, starts at relatively low crystallinities (near liquidus), and precedes the precipitation of many ore bodies, including pegmatites.
Ludmila Maria Fonseca Teixeira   +3 more
doaj   +1 more source

Polymetallic Cu-Bi-(Pb-Zn-Co-Ag) mineralization of the Perin Potok locality near Bor, Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2013
Complex polymetallic Cu-Bi-(Pb-Zn-Co-Ag) mineralization of the Perin Potok locality occurs as disseminations and fine nests in quartz-ankerite-(sericite) veins. The veins are located in metamorphic rocks of the outer contact zone of the Variscan
Pačevski Aleksandar   +2 more
doaj   +1 more source

Crystal structure of K3EuSi2O7 [PDF]

open access: yesJournal of the Serbian Chemical Society, 2021
As part of research on the flux technique for growing alkali rare-earth elements (REE) containing silicates, tripotassium europium disilicate, K3EuSi2O7, was synthesized and characterized by single-crystal X-ray diffraction.
Kovač Sabina Z.   +2 more
doaj   +1 more source

Lithology-Controlled Hydrodynamic Behaviour of a Fractured Sandstone–Claystone Body in a Radioactive Waste Repository Site, SW Hungary

open access: yesApplied Sciences, 2022
The fracture network modelling and hydrogeological assessment were performed in an 845 m deep borehole of the potential high-level waste repository formation and its caprock.
Emese Tóth   +3 more
doaj   +1 more source

Post-eruptive mobility of lithium in volcanic rocks

open access: yesNature Communications, 2018
Lithium, an increasingly economically important element, is also used to trace the cycling of materials through the Earth system. Here the authors show that post-eruptive processes such as degassing and groundmass crystallisation control the inventory of
B. S. Ellis   +7 more
doaj   +1 more source

Structural controls on petroleum migration and entrapment within the faulted basement blocks of Szeghalom Dome (Pannonian Basin, SE Hungary)

open access: yesGeologia Croatica, 2015
 The basement of the Pannonian Basin contains several fractured metamorphic hydrocarbon reservoirs that typically form structural highs between the Neogene sedimentary sub-basins.
Lászlo Molnár   +2 more
doaj   +1 more source

Cements, Waters, and Scales: An Integrated Study of the Szeged Geothermal Systems (SE Hungary) to Characterize Natural Environmental Conditions of the Thermal Aquifer

open access: yesGeofluids, 2019
The study area, Pannonian Basin (Central Europe), is characterized by high heat flow and presence of low-enthalpy geothermal waters. In the Szeged Geothermal Systems (Hungary), having Miocene to Pliocene sandstone aquifers with dominantly Na–HCO3-type ...
Andrea Varga   +5 more
doaj   +1 more source

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