Results 11 to 20 of about 23,483 (232)

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  

+10 more sources

High‐Pressure Na‐Ca Carbonates in the Deep Carbon Cycle

open access: yesGeophysical Monograph Series, Page 127-136., 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 Rashchenko   +2 more
wiley  

+3 more sources

Experimental Study of the Mechanism of Acid Rain-Gabbro Interaction [PDF]

open access: yesE3S Web of Conferences, 2019
As a common natural disaster, acid rain could not only cause serious environmental pollution, but also endanger the engineering properties of rock due to water-rock interactions.
Zhao Xiaoyan   +3 more
doaj   +1 more source

WISTFUL: Whole‐Rock Interpretative Seismic Toolbox for Ultramafic Lithologies

open access: yesGeochemistry, Geophysics, Geosystems, 2022
To quantitatively convert upper mantle seismic wave speeds measured into temperature, density, composition, and corresponding and uncertainty, we introduce the Whole‐rock Interpretative Seismic Toolbox For Ultramafic Lithologies (WISTFUL).
William J. Shinevar   +2 more
doaj   +1 more source

A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications [PDF]

open access: yes, 2011
The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Amaral   +25 more
core   +3 more sources

Release of potassium from rock powder by the yeast Torulaspora globosa

open access: yesBrazilian Archives of Biology and Technology, 2012
The alteration of minerals in rocks and the availability of elements for plant nutrition require long periods of time, and microorganisms are thought to induce the release of potassium and phosphate from rocks.
Márcia Maria Rosa-Magri   +4 more
doaj   +1 more source

RELATIVE AGE OF ACCESSORY MINERALS IN PEGMATITES OF THE ILMENY MOUNTAINS, SOUTH URALS [PDF]

open access: yesМинералогия, 2021
Effective retrospective modeling of mineral formation in natural systems should take into account all minerals – rock-forming, secondary in abundance and accessory.
V.A. Popov
doaj   +1 more source

Petrogenetic processes in the ultramafic, alkaline and carbonatitic magmatism in the Kola Alkaline Province: a review [PDF]

open access: yes, 2005
Igneous rocks of the Devonian Kola Alkaline Carbonatite Province (KACP) in NW Russia and eastern Finland can be classified into four groups: (a) primitive mantle-derived silica-undersaturated silicate magmas; (b) evolved alkaline and nepheline syenites; (
Balaganskaya, E.   +4 more
core   +1 more source

Widespread abiotic methane in chromitites [PDF]

open access: yes, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G.   +8 more
core   +1 more source

EFFECT OF ALTERNATIVE MULTINUTRIENT SOURCES ON SOIL CHEMICAL PROPERTIES

open access: yesRevista Brasileira de Ciência do Solo, 2015
The current high price of potassium chloride and the dependence of Brazil on imported materials to supply the domestic demand call for studies evaluating the efficiency of alternative sources of nutrients.
Vanessa Martins   +6 more
doaj   +1 more source

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