Results 61 to 70 of about 13,627 (232)
Bulletin of the Mineral Research and Exploration, 2022 The central district campus of Gümüşhane, located on the Trabzon-Erzurum Highway, has a steep topography, and because of the effect of climatic and morphological structure, frequent rockfall events can cause loss of life and property from time to time ...
Selçuk Alemdağ +2 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
wiley +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley +1 more source
BuildingsIn practical engineering, a shed-tunnel structure often encounters repeated impacts from rockfall during its whole service life; therefore, this research focuses on exploring the dynamic response characteristics of shed-tunnel structures under repeated ...
Hao Zhao, Zepeng Lyu, Hongyan Liu
doaj +1 more source
Rockfall hazard in the Imja Glacial Lake, eastern Nepal
Geoenvironmental Disasters, 2020 In Nepal, rockfall related studies are rarely conducted and are limited to the landslide study along with few case studies on rockfall events. Rockfall problems in Nepal are more frequent in the Higher Himalayan region than Midland and Lesser Himalayan ...
Durga Khatiwada, Ranjan Kumar Dahal
doaj +1 more source
Origin and significance of 'dispersed facies' basal ice: Svínafellsjökull, Iceland [PDF]
, 2010 Dispersed facies basal ice - massive (i.e. structureless) ice with dispersed debris aggregates - is present at the margins of many glaciers and, as a product of internal glacial processes, has the potential to provide important information about the ...
Darrel A. Swift +10 more
core +3 more sources
The Age and Origin of Block Deposits in the Victorian Alps, Australia
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows +4 more
wiley +1 more source
Investigating submerged morphologies by means of the low-budget “GeoDive” method (high resolution for detailed 3D reconstruction and related measurements) [PDF]
, 2018 Geophysical methods allow to collect geological data on lake and sea bottoms and characterize large areas, even at high depths, but with high costs.
Crognale, Jacopo +2 more
core +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley +1 more source
QuaRRi: a new methodology for rock-fall risk analysis and management in quarry exploitation [PDF]
, 2010 Rockfall is one of the most critical geological events that can affect quarrying activities. Nevertheless, few tools are currently available to help designers and managers correctly define the risk conditions and quantify the advantages, in terms of ...
Borio, Luca +3 more
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