Results 71 to 80 of about 1,473 (216)
Root Cause Analysis of a Collapse in a Hydropower Tunnel
Applied SciencesThis paper describes the investigation and findings from the root cause analysis (RCA) of a significant collapse that occurred in a hydropower tunnel at a confidential location.
Paul Schlotfeldt +2 more
doaj +1 more source
Geologia Croatica, 2016 Extensive Miocene volcanic activity produced basaltic and pyroclastic successions, which were penetrated by many wells in the area of Üllés-Ruzsa-Bordány, in the western and central part of the Great Hungarian Plain.
Barbara Szabó +3 more
doaj +1 more source
The role of temperature on P-induced crystal-fluid interaction : a study on LAU and HEU topologies
, 2023 Natural zeolites can be found in soil, oceanic basalts as well as sediments and diagenetic environments. Their peculiar reversible hydration property (i.e., the ability to adsorb and release H2O molecules) and the ability to overhydrate under pressure ...
G. D. Gatta +3 more
core +2 more sources
Arctic, Antarctic, and Alpine ResearchClay minerals are ubiquitous in glacial sediment, but their source is debated. In this study, automated mineralogy is used to characterize the size distribution of weathering products from bedrock and glacial sediment collected from multiple glacier ...
Jeffrey W. Crompton
doaj +1 more source
Laumontite in an andesite from Kinzan, Satsuma-Cho, Kagoshima Prefecture.
The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1979 A laumontite occurs in the cracks of an andesite at Kinzan, Satsuma-cho, Kagoshima Prefecture. Alkali content of the laumontite is higher than that of laumontites reported in Japan so far. Unit-cell constants calculated from x-ray powder data are very close to those of reported laumontites; a=14.765±0.007A, b=13.135±0.005A, c=7.561±0.004A and β=111.766±
TOMITA, KATSUTOSHI +3 more
openaire +2 more sources
Etude pétrographique des Grès de Taveyanne entre Arve et Giffre (Haute-Savoie, France)
, 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
Influence of Temperature on the Microstructure Deterioration of Sandstone
Energies, 2018 Macroscopic properties of sandstone are commonly attributed to the degradation of its microstructure during heating treatment processes. However, few previous studies have focused on comprehensive observations on how the microstructure of sandstone ...
Yan-Jun Shen +4 more
doaj +1 more source
Case Studies in Construction MaterialsSubgrade 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]
Geological 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
Geothermal 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