About: Surface and sub-surface Schmidt hammer rebound value variation for a granite outcrop

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About: Surface and sub-surface Schmidt hammer rebound value variation for a granite outcrop Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://onlinelibrary.wiley.com/doi/10.1002/esp.2029/pdf
Description	This study presents rock strength variations at granite outcrops and in subsurface vertical profiles in the Jizerské hory Mountains, Czech Republic. Schmidt hammer rebound values in subsurface profiles change gradually from the bedrock surface downward. An exponential relation has been observed between the R-values and depth in rock outcrops to a depth of around 4.5 m. The exponential nature of the curve indicates that rock hardness increases more rapidly with depth in the uppermost one-metre section of the rock profile. A detailed study of rebound values obtained from both intact and polished rock exposures reveal effects of surface grinding on results of the Schmidt hammer method. The range of data collected increases after grinding, allowing more precise discrimination of rock surfaces in respect of age and weathering. The Schmidt hammer method may be effectively used as a relative-age dating tool for rock surfaces that originated during the Late Pleistocene. We conclude that this time limitation can be significantly mitigated by the surface grinding before measurement. This study presents rock strength variations at granite outcrops and in subsurface vertical profiles in the Jizerské hory Mountains, Czech Republic. Schmidt hammer rebound values in subsurface profiles change gradually from the bedrock surface downward. An exponential relation has been observed between the R-values and depth in rock outcrops to a depth of around 4.5 m. The exponential nature of the curve indicates that rock hardness increases more rapidly with depth in the uppermost one-metre section of the rock profile. A detailed study of rebound values obtained from both intact and polished rock exposures reveal effects of surface grinding on results of the Schmidt hammer method. The range of data collected increases after grinding, allowing more precise discrimination of rock surfaces in respect of age and weathering. The Schmidt hammer method may be effectively used as a relative-age dating tool for rock surfaces that originated during the Late Pleistocene. We conclude that this time limitation can be significantly mitigated by the surface grinding before measurement. (en)
Title	Surface and sub-surface Schmidt hammer rebound value variation for a granite outcrop Surface and sub-surface Schmidt hammer rebound value variation for a granite outcrop (en)
skos:prefLabel	Surface and sub-surface Schmidt hammer rebound value variation for a granite outcrop Surface and sub-surface Schmidt hammer rebound value variation for a granite outcrop (en)
skos:notation	RIV/00216208:11310/11:10106395!RIV12-GA0-11310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GAP209/10/0519), S, Z(MSM0021620831)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Engel, Zbyněk Černá, Barbora
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	233481
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/11:10106395
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Jizerské hory Mountains; Quaternary; Schmidt hammer; granite; weathering (en)
http://linked.open.../riv/klicoveSlovo	Schmidt hammer granite Jizerské hory Mountains Quaternary weathering
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[E3473E557FEA]
http://linked.open...i/riv/nazevZdroje	Earth Surface Processes and Landforms
http://linked.open...in/vavai/riv/obor	DE
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Paleogeographic reconstruction of Quaternary deglaciation in mountain areas of the Bohemian Massif
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	Engel, Zbyněk Černá, Barbora
http://linked.open...ain/vavai/riv/wos	000287154000003
http://linked.open...n/vavai/riv/zamer	GEOGRAPHICAL SYSTEMS AND RISK PROCESSES IN CONTEXT GLOBAL CHANGES AND EUROPEAN INTEGRATION
issn	0197-9337
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/esp.2029
http://localhost/t...ganizacniJednotka	11310

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