Dr
Jacek Szczygieł
(Department of Fundamental Geology, Faculty of Earth Sciences, University of Silesia)
10/25/18, 2:00 PM
Oral Preference
In the extensive parts of the Niedźwiedzia Cave in Kletno discovered in 2011-2013, several dozen broken and fallen stalagmites, stalactites and flowstones have been documented, the largest of which are nearly 0.6 m in diameter and ~ 2 m in height. Damaged speleothems can be observed in the whole cave, as well as collapses of thickness up to several meters. In order to decipher the causes of...
Prof.
Yves Quinif
(University of Mons)
10/25/18, 2:20 PM
Session 4 Orals
Oral Preference
The relations between the karstification and the sismotectonic events can be divided in two great chapters. (1) During karstogenesis, there are relations between tectonic conditions and possibility of karstogenesis. (2) After active evolution of endokarst, we can use the geometry of the endokarstic features and the endokarstic deposits to characterize and date the sismotectonic...
Dr
Katalin Gribovszki
(Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences)
10/25/18, 2:40 PM
Oral Preference
Earthquakes hit urban centers in Europe infrequently, but occasionally with disastrous effects. Obtaining an unbiased view of seismic hazard (and risk) is therefore very important.
In principle, the best way to test Probabilistic Seismic Hazard Assessments (PSHA) is to compare them with observations that are entirely independent of the procedure used to produce PSHA models. Arguably, the...
Prof.
Víctor-Hugo GARDUÑO-MONROY
(UMSNH-INICIT)
10/25/18, 3:30 PM
Oral Preference
Paleospeleosismology is a discipline, which studies fallen stalagmites and stalactite as archives of past seismic events (Quinif, 1996; Gilli, 2005). Damaged or fallen speleothems (named seismothems) are often observed in caves, and first recognized at Han-sur-Lesse karst complex. There are several physical causes that can damage or break stalagmites: one is the reaction of the stalagmite – as...
Dr
Sophie Verheyden
(Royal Belgian Institute of Natural Sciences -Geopark Famenne-Ardenne- VUB - BELSPO)
10/25/18, 3:50 PM
Oral Preference
The two most recent collapses in the Han-sur-Lesse Cave (Belgian Ardenne), more precisely in the Dôme room, occurred on or shortly after 3rd December 1828 and between the 13th and 14th of March 1984. These collapses were directly observed by cave guides and occurred less than a year after the
23rd February 1828 (Mw =5.1 in Central Belgium) and 8th November 1983 (Mw=4.8 in Liège)...
Prof.
Daniele Pinti
(GEOTOP - Université du Québec à Montréal)
10/25/18, 4:10 PM
Oral Preference
Stalagmites can provide very high-resolution (seasonal to annual) continental archives for paleoenvironmental reconstructions (Bar-Matthews et al, 1991, Bar-Matthews et al, 1997) due to their precise chronology and their ability to register climatic and environmental changes through proxy-tools such as stable isotopes \delta ^{13}C and \delta ^{18}O (McDermott, 2004) and trace elements...
