Geobody architecture of continental carbonates: “Gazda” travertine quarry (Süttő, Gerecse Hills, Hungary)

Abstract

The Gazda quarry is one of the largest outcrops of the present-day Süttő travertine complex that is situated close to the town of Süttő (Hungary), in the Pannonian Basin. Sedimentological and petrographical analyses show that the Gazda travertine body is built out of phytohermal, wavy laminated, massive and flat laminated travertine lithofacies representing reed mound, slope, lacustrine and palustrine depositional environments, respectively. Based on petrographic analyses, the following three main textural features were recognized that allow to describe the most common microscopic features: (1) micrite textures; (2) micritic coatings and crusts; and (3) different types of clasts. Each major lithofacies is characterized by a particular association of these textural types.The geometry of the travertine beds follows the antecedent land-surface, a NE-SW striking prePleistocene valley. It is proposed that in this valley travertine precipitation took place along a gently sloping terrain. The Gazda travertine system was fed by at least two groundwatersprings. One of them was located NE of the quarry from which waters were flowing along the axis of the valley. The other source was located to the East of the Gazda quarry and waters joined the main water-course along the valley. Closest to the confluence, a phytohermal mound developed with lateral slope and eventual pond depositional systems. Onlapping and interfingering with the flat laminated lithofacies indicate alternating activity of the two springs.Fractures observed in the quarry are mainly related to postdepositional gravitational sliding, however, neotectonic forces resulting in SE-NW tension also played a role in the formation of the fractures. Detailed sedimentological and geochemical study of the Gazda travertine complex allowed small-scale facies characterization providing information about the ancient depositional environment and the heterogeneous nature of these carbonates.

INVESTIGATION OF A FLOWSTONE-LIKE HISTORICAL INDOOR-TRAVERTINE (RUDAS SPA, BUDAPEST, HUNGARY) USING THE14C “BOMB-PEAK”

“…The presence of Al, K and Fe can be related probably to the non-carbonate fraction mentioned above. Based on her studies of a large Pleistocene travertine complex at Süttő (NW of Budapest) Török (2018) and Török et al (2019) suggested that the majority of such trace elements were of detrital origin and they accumulated on the travertine surface as dust at times of temporary subaerial exposure. Temporary halts of the water-supply might have also resulted in dust (aerosol)-deposition on the surface of the Rudas travertine buildup, thus enhancing the non-carbonatic contamination of the subsequently precipitating travertine layer.…”

Calcretes and travertines from the Palaeocene Itaboraí Basin as evidence of the early evolution of the Southeastern Brazil Continental Rift

“…Other ranges that are comparable to the ones from Itaboraí Basin were verified in travertines from different sites in Italy (Gonfiantini et al ., 1968; Minissale et al ., 2002) and around the world, such as in the USA (Chafetz & Lawrence, 1994; Fouke et al ., 2000), Hungry (Török et al ., 2017), Tunisia (Teboul et al ., 2016), Germany (Usdowski et al ., 1979), China (Liu et al ., 2003) and Turkey (Özkul et al ., 2002; Uysal et al ., 2009; Kele et al ., 2011; Claes et al ., 2015).…”

Mikrobialitok jellegzetességei: a biofilmek szerepe a karbonátkiválásban

“…Sajátos A Gerecsében a süttői édesvízi mészkőben a csomós mik rit szövet alapján definiálták a mikrobialit litofáciest, amit biofilmből való kalcitkiválásként értelmeztek (TÖRÖK et al 2017). Az egerszalóki hőforrás környezetében kivált édesvízi mészkő boundstone mikrofáciesében a szálas kalci mikroba és a csomós mikrit szöveti komponensek a jel - 11. ábra.…”