Geochemistry of formation waters in the Pannonian Basin (southeast Hungary)

Varsányi, Irén; Matray, Jean-Michel; Kovács, Lajos Ó.

doi:10.1016/s0009-2541(97)00045-4

Cited by 34 publications

(26 citation statements)

References 14 publications

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“…Pannonian Basin is a sedimentary basin characterized by a thinned crust and filled with sediments of low heat conductivity which favorize high geothermal gradients (approximately 50°C/km) with a heat flow of 90-100 mW/m 2 (Dövényi et al, 2002). The bulk of the basin consists of Late Miocene, Pliocene and Quaternary clastic sediments deposited under brackish to freshwater conditions and containing type III kerogen in the dispersed form of lignite (Varsányi et al, 1997;Hetényi, 1992). Two main hydrological systems are associated with geothermal fluids.…”

Section: Sampling Areamentioning

confidence: 99%

“…One of them is in the Upper-Pannonian (Late Miocene and Pliocene) units consisting of clastic porous sandstones between depths of 500 and 2500 m (Erdélyi, 1979). Varsányi et al (1997Varsányi et al ( , 1999 described in detail the geochemistry and hydrogeology of geothermal waters of the Pannonian Basin. They found that the formation waters located in the center of the Pannonian Basin at depths between 75 and 2500 m are meteoric in origin, infiltrated during the last glacial period (Würm glacial, 70,000 to 10,000 years before present).…”

Section: Sampling Areamentioning

confidence: 99%

“…Linearity can be seen between the total humic content and the UV-vis absorption. Here we note that in previous studies the HA contents of thermal waters were measured spectrophotometrically at 420 nm using a Fluka humic acid as standard (Varsányi et al, 1997, Kárpáti et al, 1999. Table 3 shows the elemental composition of HS isolated from thermal waters and SRFA.…”

Section: Ha and Fa Content Of Water Samplesmentioning

confidence: 99%

“…The interest in studying HS from shallow to deep aquifers has increased recently Buckau et al, 2000;Hertkorn et al, 2002;McIntyre et al, 2005;Einsiedl et al, 2008). Most geochemical studies of thermal waters are focused on isotope composition of the water as well as major and minor dissolved ions or trace elements (Varsányi et al, 1997;Kralj, 2004;Yalcin, 2007;Parello et al, 2008;Fekete et al, 2009). The investigation of organic compounds in thermal waters has attracted much less attention apart from some exceptions (Kárpáti et al, 1996(Kárpáti et al, , 1999Varsányi et al, 2002;Di Gioia et al, 2006;González-Barreiro et al, 2009;Fekete et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Comparative study on humic substances isolated in thermal groundwaters from deep aquifers below 700 m

et al. 2012

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Section: Sampling Areamentioning

confidence: 99%

Section: Sampling Areamentioning

confidence: 99%

Section: Ha and Fa Content Of Water Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative study on humic substances isolated in thermal groundwaters from deep aquifers below 700 m

et al. 2012

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“…Geochemical investigations were done in the central and eastern Hungarian part of the Pannonian Basin (deák et al, 1987;Varsányi et al, 1997Varsányi et al, , 1999Varsányi et al, , 2011Varsányi & koVács, 2009) as well as in its Slovenian part (kralj & kralj, 2000a, 2000bkralj, 2001;kralj et al, 2009;laPanje, 2006laPanje, , 2007Pezdi~, 1991Pezdi~, , 1999Pezdi~, , 2003. However, no cross-border hydrogeochemical studies of the Mura-Zala basin aquifers were known before our research.…”

Section: Settings Of the Investigated Mura-zala Sedimentary Basinmentioning

confidence: 99%

Transboundary geothermal resources of the Mura-Zala basin:a need for joint thermal aquifer management of Slovenia and Hungary

Nádor¹,

Lapanje²,

Tóth³

et al. 2012

Geologija

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Large transboundary Upper Miocene geothermal sandy aquifers which are widely utilized by both countries for balneological and direct heat purposes exist in the Slovenian-Hungarian border region. In NE Slovenia the total direct heat use was 382 TJ in 2010, while in SW Hungary it was 648 TJ, including utilization from basement reservoirs. The total installed capacity of the 13 Slovenian users was 38.8 MW t , while that of the 29 Hungarian users was 70.6 MW t . Utilisation takes place without harmonized management strategies which might endanger the longterm sustainability of these systems. We aimed to overcome this by delineating a transboundary thermal groundwater body (TTGWB) Mura-Zala with an aerial extent of 4,974 km 2 and with vertical extent between depths 500-2,200 m, which was done based on detailed geological, hydrological, geochemical and geothermal models as well as numerical modelling. The regional groundwater flow in the Mura-Zala TTGWB is from west to east in general, the modeled cross-border flow is approximately 50 l/s. At present, thermal water abstraction rates from the Mura/ Újfalu Fm. (61.8 l/s in the Slovenian and 67.3 l/s in the Hungarian part of the TTGWB) does not endanger the good regional quantity status of the water body, and this should be maintained by allowing a maximum increase of thermal water abstraction 3.5 times higher than today. However, to achieve target numbers for an increased proportion of geothermal energy in the total energy mix in both countries, we suggest that increase of thermal efficiency and re-injection should be prioritized apart from the higher thermal water abstraction with setting up limit of the maximum allowable drawdown. Izvle~ekNa mejnem obmo~ju med Slovenijo in Madžarsko so razprostranjeni obsežni, prekomejni zgornjemiocenski geotermalni pe{~eni vodonosniki, ki se v obeh državah uporabljajo predvsem v balneolo{ke namene in za direktno rabo toplote. V severovzhodni Sloveniji je skupna direktna raba toplote v letu 2010 dosegla 382 TJ, v jugovzhodnem delu Madžarske pa 648 TJ, vklju~no z rabo vodonosnikov v podlagi neogenskih kamnin. Celotna in{talirana kapaciteta 13 slovenskih uporabnikov je zna{ala 38,8 MW t , medtem ko je in{talirana kapaciteta pri 29 madžarskih uporabnikih dosegla 70,6 MW t . Uporaba poteka brez usklajene strategije upravljanja, kar lahko ogrozi dolgoro~no vzdržnost teh sistemov. To smo želeli prese~i z opredelitvijo prekomejnega Mursko-Zalskega telesa termalne podzemne vode (VTPodV Mura-Zala) s povr{ino 4.974 km 2 in vertikalnim razponom globine 500-2200 m, dolo~enega na podlagi podrobnih geolo{kih, hidrogeolo{kih, geokemi~nih in geotermalnih modelov, kot tudi numeri~nega modela podzemne vode. Tok podzemne vode v VTPodV Mura-Zala je usmerjen pretežno v smeri zahod-vzhod, pri ~emer je prekomejni tok ocenjen na približno 50 l/s. Pri trenutni koli~ini odvzema termalne vode (~ 61,8 l/s iz slovenskega ter ~ 67,3 l/s iz madžarskega dela VTPodV Mura-Zala) koli~insko stanje telesa ni ogroženo, a njegovo dobro stanje je potrebno ohranjati ...

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Hydraulic conclusions from chemical considerations: groundwater in sedimentary environments in the central part of the Pannonian Basin, Hungary

2014

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Geochemistry of formation waters in the Pannonian Basin (southeast Hungary)

Cited by 34 publications

References 14 publications

Comparative study on humic substances isolated in thermal groundwaters from deep aquifers below 700 m

Comparative study on humic substances isolated in thermal groundwaters from deep aquifers below 700 m

Transboundary geothermal resources of the Mura-Zala basin:a need for joint thermal aquifer management of Slovenia and Hungary

Hydraulic conclusions from chemical considerations: groundwater in sedimentary environments in the central part of the Pannonian Basin, Hungary

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