Results 71 to 80 of about 688 (199)

The role of temperature in P-induced crystal fluid interaction: the case of LAU and HEU topology [PDF]

open access: yes, 2022
Zeolites are a class of open-framework aluminosilicate minerals commonly present in soil, oceanic basalts and sediments and diagenetic environments. Zeolites may act as fluid carriers in the upper Earth crust during the early subduction stage thanks to ...
G. D. Gatta   +4 more
core  

Proportion optimization and performance analysis of ternary solid waste geopolymer grouting material based on the response surface method

open access: yesCase Studies in Construction Materials
Subgrade loosening, cavities, and sub-slab voids are common distresses in aging highways, severely affecting structural performance and driving safety. This study addresses the Guigang S511 project in Guangxi, China, by developing an eco-friendly ternary
Jiaquan Wang   +4 more
doaj   +1 more source

Scientific results from the deepened Lopra-1 borehole, Faroe Islands: Mineralogical and thermodynamic constraints on Palaeogene palaeotemperature conditions during low-grade metamorphism of basaltic lavas recovered from the Lopra-1/1A deep hole, Faroe Islands [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2006
The sequene of secondary minerals that are reported for the Lopra-1/1A well records progressive zeolite facies to prehnite–pumpellyite-facies mineral progressions consistent with those of other wellstudied hydrothermally altered rock sequences.
Glassley, William E.
doaj  

The layered model of the Copahue geothermal reservoir, Argentina

open access: yesGeothermal Energy, 2019
An exhaustive review of the available data related to the reservoir of the volcano-hosted Copahue geothermal system is presented. Reservoir interpretation to date suggests a vapor-dominated nature.
Hernan Barcelona   +2 more
doaj   +1 more source

Etude pétrographique des Grès de Taveyanne entre Arve et Giffre (Haute-Savoie, France)

open access: yes, 1968
L'auteur décrit principalement une série détritique de type flysch, connue sous le nom de „Grès de Taveyanne". Il s'agit de grauwackes provenant de la démolition d'édifices volcaniques dont le matériel effusif est constitué d'andésites à labrador.
Martini, Jacques
core   +1 more source

Poromechanical Analysis of Deeply Drilled Wellbores for Geo-energy Production [PDF]

open access: yes, 2023
Geo-mechanical analysis and ensuring wellbore stability are paramount for the success of deep geo-energy production projects. The present study addresses the complex challenges arising from geological formations comprising laumontite-rich rocks, fault ...
Heidari, Sina
core  

The thermal dehydration of natural zeolites [PDF]

open access: yes, 1974
The zeolites constitute a group of minerals of much interest from geological, mineralogical and technological points of view. Structurally, they are tectosilicates with an 'open' framework containing channels and cavities which accommodate cations and ...
van Reeuwijk, L.P., Reeuwijk, L.P., van
core  

Implications of zeolites and their zonation in the Cajon Pass Deep Drillhole [PDF]

open access: yes, 1988
Zeolites occur in all cores and most cuttings samples of plutonic and gneissic rock from the Cajon Pass Deep Drillhole. Laumontite or stilbite replace plagioclase and fill fractures
James, Eric W., Silver, Leon T.
core  

Differential diagenetic and densification processes of low-permeability and tight sandstones: A case study of the Jurassic Shaximiao Formation in the central and western Sichuan Basin, China

open access: yesJournal of Asian Earth Sciences: X
Tight sandstone reservoirs of low permeability are of both scientific and economic significance, but their origin and formation process remain not well understood..
Laixing Cai   +6 more
doaj   +1 more source

Georgian laumontite as an immobilizing agent for remediation of lead-contaminated soil

open access: yesWorld Journal of Advanced Research and Reviews
Heavy metals are a major source of environmental pollution, and the problem is becoming increasingly critical worldwide. Soil contamination by heavy metals is particularly hazardous because these elements are non-biodegradable, can accumulate in the soil for many years, and are readily taken up by plants.
Nino Burkiashvili   +2 more
openaire   +1 more source

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