[en] To provide quantitative information on the ground acceleration necessary to break speleothems, laboratory measurements on samples of stalagmite have been performed to study their failure in bending. Due to their high natural frequencies, speleothems can be considered as rigid bodies to seismic strong ground motion. Using this simple hypothesis and the determined mechanical properties (a minimum value of 0.4 MPa for the tensile failure stress has been considered), modelling indicates that horizontal acceleration ranging from 0.3 m/s(2) to 100 m/s(2) (0.03 to 10g) are necessary to break 35 broken speleothems of the Hotton cave for which the geometrical parameters have been determined. Thus, at the present time, a strong discrepancy exists between the peak accelerations observed during earthquakes and most of the calculated values necessary to break speleothems. One of the future research efforts will be to understand the reasons of the defined behaviour. It appears fundamental to perform measurements on in situ speleothems.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Cadorin, Jean-François
Jongmans, Denis
Camelbeeck, Thierry
Delaby, Serge
Quinif, Yves
Plumier, André ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingéniérie sismique
Language :
English
Title :
Modelling of speleothems failure in the Hotton cave (Belgium). Is the failure earthquake induced?
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Bini A., Quinif Y., Sules O., Uggeri A. (1992) Evidences de tectonique récente dans les grottes du M. Campo de Fiori (Lombardie, Italie). Karstologia 19:23-30.
Delaby S. (1999) Etude statistique de l'enregistrement paléosismique par les spéléothémes. L'exemple de la Grotte de Hotton (Belgique)'Karst 99'. Etudes de géographie physique , travaux 1999 - nE CAGEP, Université de Provence; 28(SUPPL.):73-76.
Delaby S. Paleoseismic Investigations in Belgium Caves , In press: Cahier du Centre Européen de Géodynamique et de Sismologie; 2001, 18:45-48.
Forti P., Postpischi D. (1979) Derivazione di dati neotettonici da analisi di concrezioni alabastrine, IE contributo. Analisi statistica delle stalagmiti del sistema carsico Fiume-Vento (S. Vittore Genga - Ancona). CNR - Progetto Finalizzato Geodinamica 251.
Forti P., Postpischl D. (1980) Neotectonic data from stalagmites : Sampling and analysis techniques. European Regional Conference on Speleology Sofia , CNR - Progetto Finalizzato Geodinamica, 351 Sofia; 2:34-39.
Forti P., Postpischl D. (1984) Seismotectonic and paleoseismic analysis using karst sediments. Marine Geology 55:145-161.
Forti P., Postpischl D. (1986) May the growth axis of stalagmites be considered as recorders of historic and prehistoric earthquakes? Preliminary results from the Bologna karst area (Italy). Int. Symp. Engineering Geology Problems in Seismic Area , Bari, 1; 1:183-193.
Forti P., Postpischl D. (1988) Datazione radiometrica di eventi palaeosismici. Studi e Ricerche, M. Unguendoli Ed., CUSL, Bologna; .
Forti P., Postpischl D. (1988) Seismotectonics and radiometric dating of karst sediments. Proc.Hist.Seismol.Central Eastern Mediterranean Region ENEA , Roma; 321-332.
Gilli E. (1986) Néotectonique dans les massifs karstiques, un exemple dans les Préalpes de Nice, la grotte des Deux Gourdes. Karstologia 8:50-52.
Gilli E., Levret A., Sollogoub P., Delange P. (1999) Research on the February 18, 1996 earthquake in the caves of Saint-Paul-de-Fenouillet area (Eastern Pyrenees, France). Geodinamica Acta - Karst and tectonics : Han-98 12(3-4):143-158.
Lemeille F., Cushing M., Carbon D., Grellet B., Bitterli T., Flehoc C., Innocent C. (1999) Co-seismic ruptures and deformations recorded by speleothems in the epicentral zone of the Basel earthquake. Geodinamica Acta - Karst and tectonics : Han-98 12(3-4):179-192.
Massonnet Ch. Résistance des Matériaux , Ed. Dunod; 1962, 56-57.
Moretti A., Vulcano A. (1999) Uso di speleotemi quali possibli indicatori della massima accelerazione sismica al sito. GEOITALIA, 2° Forum FIST 1:355-357.
Postpischl D., Ahostini S., Forti P., Quinify Y. (1991) Paleoseismicity from karst sediments : The 'Grotta del Cervo' cave case study (Central Italy). Tectonophysics 193:33-44.
Quinif Y. (1996) Enregistrement et datation des effects sismotectoniques par l'étude des spéléothèmes. Annales de la Société Géologique de Belgique 119(1):1-13.
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.