Edwards Aquifer Philosophical Society - aka brown bag luncheon
Wednesday, February 8, 2017 at 11:55 A.M. . A Walk Through Sinkholes in the Central Ebro Basin By Dr. María Asunción Soriano At Edwards Aquifer Authority Training Room 900 E Quincy Street, San Antonio, TX 78215 Dr. María Asunción Soriano, Profesor Titular (Associate Professor) of Geodinámica Externa at the Universidad de Zaragoza will present a talk titled "A Walk Through Sinkholes in the Central Ebro Basin. The presentation will occur on Wednesday, February 8, 2017 from 11:55 A.M. to 12:55 P.M. in the Training Room at the Edwards Aquifer Authority, 900 E. Quincy Street, San Antonio, Texas. These are informal presentations so please feel free to bring your lunch. You may also contact the EAA at 210.222.2204 or www.edwardsaquifer.org<http://www.edwardsaquifer.org/> for additional directions. If you are traveling a long distance for the talk, I would recommend that you call our receptionist at 210.222.2204 that morning to make sure that the talk is still scheduled. On very rare occasions, we have had to cancel or move the talk. I apologize for any inconvenience this may cause. Abstract The central Ebro Basin is an exceptional region for studying karstification. Miocene evaporites are covered by alluvial deposits (Quaternary in age) and, consequently, a mantled karst is profusely developed. In this scenario, sinkholes have been developing since the Early Pleistocene until today. Present sinkholes are one of the main geohazards in this region. They are causing a lot of damage and economic loss especially in urban areas. Human activities, mainly irrigation, contribute to the development of these sinkholes. Application of research with diverse geophysical devices provides a better delimitation of risky urban areas. In addition, Pleistocene detrital deposits of the central Ebro Basin frequently present deformation features (both syn- and postsedimentary) traditionally attributed to karstification. The increase of urban areas in past years caused plenty of civil works and subsequent activities in quarries. Consequently, a high number of excellent artificial outcrops (up to 20 m in height) exposing Quaternary deposits and also Miocene deposits have been generated. The study of these paleodeformation structures (interpreted as paleosinkholes, in most cases) provides different pieces of information about: 1) the diverse processes involved in its genesis, 2) the evolutionary stages, 3) when dating, the length of time activity of the paleosinkhole, 4) the presence of anomalous sediments in the general sedimentary context, 5) the preservation of fine sediments that without sinkholes will be eroded. Comparison of patterns between paleo and present sinkhole are similar and, for this reason, the study of paleosinkholes can help to a better urban planning. Biography Dr. María Asunción SORIANO, obtained her Bachelor and PhD. in Geology both from the University of Zaragoza in Spain. She is Profesor Titular (Associate Professor) of Geodinámica Externa at the Universidad de Zaragoza, where she teaches Geology, Geomorphology and Remote Sensing applied to Geology. Her main research interests are on Geomorphology, mainly of the Ebro Basin and Iberian Range (Spain). She elaborated detailed mapping of these areas. She also accomplished detailed studies of Holocene deposits in gullies, as well as in Neotectonics of Tertiary and Quaternary deposits in the Ebro Basin and Iberian Range, in some cases using Remote Sensing images. But her main research topic is the study of karst in the central Ebro Basin. Present sinkholes are one of the main geohazards in this area and geomorphological and geophysical tools have been used in their study. Paleosinkholes are also numerous and in the last years this is a main target of her research. She carried out several research projects as principal researcher and researcher. She also developed several contracts with private and public companies. Dr. Soriano published more than one hundred of scientific papers in journals and conference proceedings. Thank you. Geary [https://ucarecdn.com/cfe99bfa-9ee9-4330-862f-aee807af1b4c/-/resize/132x68/img.png]<http://www.edwardsaquifer.org/> Geary Schindel Director/CTO, Aquifer Science www.edwardsaquifer.org<http://www.edwardsaquifer.org/> 210.222.2204 ext 346 900 E Quincy San Antonio, TX 78215 [https://app.zippysig.com/social-icons/24/000055/03facebook.gif]<https://www.facebook.com/TheEdwardsAquifer/?sk=wall> [https://app.zippysig.com/social-icons/24/000055/03twitter.gif] <https://twitter.com/EdwardsAquifer> [https://app.zippysig.com/social-icons/24/000055/03youtube.gif] <https://www.youtube.com/edwardsaquiferauthorityeaa>
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