Investigating epikarst using low-frequency GPR: example from the Gran Sasso range (Central Italy)

Tallini, Marco; Gasbarri, Diego; Ranalli, Danilo; Scozzafava, M.

doi:10.1007/s10064-005-0017-y

Cited by 19 publications

(7 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Gr 6 therefore represents shallow circulating groundwater which has the short-residence time, from which all the others evolve. Along the flowpaths, salinity and temperature increase (Barbieri et al 2005), due to the lithological and structural setting, outcrops of dolomite bedrock and karst or epikarst features (Magaldi and Tallini 2000;Petitta and Tallini 2002;Tallini et al 2006Tallini et al , 2013.…”

Section: Introductionmentioning

confidence: 99%

Isotope hydrology and geochemical modeling: new insights into the recharge processes and water–rock interactions of a fissured carbonate aquifer (Gran Sasso, central Italy)

et al. 2014

Self Cite

View full text Add to dashboard Cite

The goal of this paper was to characterize the recharge process and water-rock interactions in a regional homogeneous fractured carbonate aquifer in the Mediterranean environment (Gran Sasso, central Italy) through isotope data (d 2 H, d 18 O and d 13 C-DIC) collected between 2006 and 2010. Samples were collected from the springs of the Gran Sasso aquifer and from the Underground Nuclear Physics Laboratories, located within the aquifer. Additionally, the hydrochemical data and the reference hydrogeological frameworks of previous studies have been used as a starting point for the geochemical modeling. The Gran Sasso aquifer, which is bounded by terrigenous and clastic units acting as aquitards, accommodates a uniquely broad regional groundwater, which feeds springs mainly at its border with high, steady discharge. In total, these springs discharge of more than 18 m 3 /s. At a local scale for the aquifer core and at a regional scale for the overall aquifer, d 2 H, d 18 O and d 13 C-DIC isotope data, the geochemical inverse modeling through PHREEQC and the d 13 C-DIC fractionation modeling through NETPATH 2.0 show the following. (1) Clear processes of evaporation and related isotope enrichment may be ruled out. (2) Groundwater flow is active and extends to the overall aquifer without clear signs of layering and partitioning. (3) Groundwater flowpaths radiate from the core toward the periphery. (4) In L'Aquila Plain, Gran Sasso groundwater mixes with shallow Quaternary water at a ratio of one half. (5) The main geochemical processes are the dissolution of calcite and dolomite, and in some cases, ion exchange occurs (Mg 2? and SO 4 2-release, Ca 2? adsorption). (6) In the less mineralized recharge groundwater, the d 13 C-DIC value is influenced by the d 13 C-DIC value of rainfall, while in more evolved groundwater, the final d 13 C-DIC value is reached by fractionation during the flowpaths, indicating a lengthy interaction with limestone.

show abstract

Section: Introductionmentioning

confidence: 99%

Isotope hydrology and geochemical modeling: new insights into the recharge processes and water–rock interactions of a fissured carbonate aquifer (Gran Sasso, central Italy)

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Poleg tipičnih kraških pojavov se je georadar izkazal kot primerna metoda tudi za karakterizacijo pokritega krasa in določitev meje med epikraško cono in kompaktnejšim apnencem pod njo (Tallini et al, 2006). V raziskavi so uporabili 40 MHz neščiteno in 100 MHz neščiteno anteno.…”

Section: Epikras In Kontakt Tla/matična Podlagaunclassified

Application of ground penetrating radar in karst environments: An overview

Čeru¹,

Gosar²

2019

Geologija

View full text Add to dashboard Cite

Kras kot kompleksen in heterogen sistem predstavlja za georadar velik izziv. Kljub vsemu pa lahko z dobro načrtovanimi georadarskimi raziskavami pridobimo dodatne informacije o plitvem podpovršju, kjer se odvija večina kraških procesov. Zaradi specifičnosti kraškega površja so v uvodnem delu predstavljene nekatere ovire in prilagoditveni pristopi pri raziskavah na krasu. Analiza pregleda objavljene literature je pokazala, da se georadar v kraških okoljih najpogosteje uporablja za zaznavanje jam in območij pogrezanj ter pri preprečevanju nenadnih porušitev tako v urbanih območjih kot tudi pri gradbenih posegih v prostor. Georadar se uporablja tudi pri raziskavah kraških vodonosnikov, epikrasa in raziskavah v kamnolomih. Poleg uveljavljenih aplikacij so predstavljene nekatere še neuveljavljene aplikacije, kot je uporaba georadarja pri raziskavah brezstropih jam in jamskih sedimentov. Glavni namen članka je prikazati in ovrednotiti možnosti uporabe georadarja v različnih kraških okoljih in spodbuditi njegovo uporabo za nekatere nove aplikacije in opozoriti na nujnost interdisciplinarnega pristopa v takšnih študijah.

show abstract

“…GPR is historically not used in the extremely conductive floodplain setting due to signal attenuation at normal operating frequencies. As GPR systems have been used in more varied settings, new systems have been designed that use lower frequencies (10 to 100 MHz) in an attempt to image deeper (Davis and Annan, 1989;Jol et al, 2002;Tallini et al, 2006;Tsoflias and Becker, 2008;Zeng et al, 2008). The introduction of systems like the 25 MHz system used for this study has made it tempting to try these systems in this highly conductive environment.…”

Section: Introductionmentioning

confidence: 99%

Integrating ground penetrating radar and ground-based high resolution EM to improve understanding of floodplain dynamics

Hatch

Lawrie

Clarke

et al. 2010

ASEG Extended Abstracts

View full text Add to dashboard Cite

Investigating epikarst using low-frequency GPR: example from the Gran Sasso range (Central Italy)

Cited by 19 publications

References 6 publications

Isotope hydrology and geochemical modeling: new insights into the recharge processes and water–rock interactions of a fissured carbonate aquifer (Gran Sasso, central Italy)

Isotope hydrology and geochemical modeling: new insights into the recharge processes and water–rock interactions of a fissured carbonate aquifer (Gran Sasso, central Italy)

Application of ground penetrating radar in karst environments: An overview

Integrating ground penetrating radar and ground-based high resolution EM to improve understanding of floodplain dynamics

Contact Info

Product

Resources

About