The Largest Hydrocarbon Field Discovered to Date in Hungary&lt;subtitle&gt;Algyo&lt;/subtitle&gt;

Magyar, Imre; Fogarasi, Attila; Vakarcs, G.; Buk, Lszl

doi:10.1306/985734m843142

Cited by 13 publications

(17 citation statements)

References 17 publications

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“…The seismic interpretation was correlated with the surface geology outcropping along the Dinaridic basin margin (1:100.000 maps published by the Geological Institute of Serbia) and with recent kinematic, structural and exhumation studies published in or near this marginal area [ Schefer , 2010; Schmid et al , 2008; Stojadinović et al ., 2012; Toljić et al ., 2012; Ustaszewski et al , 2010]. Furthermore, our interpretation has been correlated with previously published basement or cover data located in various places across the basin in Serbia and neighboring Hungary, Romania and Croatia [e.g., Juhász et al , 2007; Magyar et al , 2006; Pavelić , 2001; Răbăgia , 2009; Saftić et al , 2003; Tari and Horváth , 2006; Tulucan , 2007]. The seismic interpretation uses the sequence stratigraphic terminology common to extensional basins [e.g., Martins‐Neto and Cătunean , 2010; van Wagoner et al , 1990].…”

Section: The Miocene Structural Geometry Of the Pannonian Basin In Sesupporting

confidence: 75%

“…The northeastmost part of Serbia, together with the neighboring parts of Hungary and Romania, incorporate large offset extensional structures such as the Szeged (in Hungary; Banatsko Aranđelovo in Serbia) Depression, the Algyő (in Hungary; Podeanu‐Teremia in Romania, Kikinda‐Mokrin in Serbia) High and the Makó (Srpska Crnja in Serbia, Tomnatec in Romania) Depression (Figures 3 and 6) [see also Haas et al , 2010; Magyar et al , 2006; Răbăgia , 2009; Tari et al , 1999]. These structures are separated by low‐angle, large‐offset normal faults that show highly eroded footwalls, while the Miocene thickness reaches 7 km in the Makó Depression (Figure 3) [see also Magyar et al , 2006].…”

Section: The Miocene Structural Geometry Of the Pannonian Basin In Sementioning

confidence: 99%

“…Large uncertainties still exist in the Tisza‐Dacia block in what concerns the timing, geometry and succession of extensional events, as well as the moment when this extension ceased. For instance, although late Miocene normal faults have been observed in the Pannonian Basin and middle–late Miocene extensional detachments have been rather intuitively defined in its SE part, the amount of coeval stretching has been generally considered limited and, therefore, the thermal relaxation is considered to be the main mechanism acting during late Miocene times [ Horváth et al , 2006; Kováč et al , 1995; Magyar et al , 2006; Tari et al , 1999; Tari and Horváth , 2006; Windhoffer et al , 2005]. Furthermore, when compared with the ALCAPA unit, much less is known on the role of the clockwise rotation of the Tisza‐Dacia unit on the formation of the Great Hungarian Plain part of the Pannonian Basin (and its connection with the Dinarides and Carpathians (Figures 1a and 1b).…”

Section: Introductionmentioning

confidence: 99%

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On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides

2012

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.[1] The large number and distribution of rollback systems in Mediterranean orogens infer the possibility of interacting extensional back-arc deformation driven by different slabs. The formation of the Pannonian back-arc basin is generally related to the rapid Miocene rollback of a slab attached to the European continent. A key area of the entire system that is neglected by kinematic studies is the connection between the South Carpathians and Dinarides. In order to derive an evolutionary model, we interpreted regional seismic lines traversing the entire Serbian part of the Pannonian Basin. The observed deformation is dominantly expressed by the formation of Miocene extensional detachments and (half) grabens. The extensional geometries and associated synkinematic sedimentation that migrated in time and space allow the definition of a continuous and essentially asymmetric early to late Miocene extensional evolution. This evolution was followed by the formation of few uplifted areas during the subsequent latest Miocene-Quaternary inversion. The present-day extensional geometry changing the strike across the basin is an effect of the clockwise rotation of the South Carpathians and Apuseni Mountains in respect to the Dinarides. Our study infers that the Carpathian rollback is not the only mechanism responsible for the formation of the Pannonian Basin; an additional middle Miocene rollback of a Dinaridic slab is required to explain the observed structures. Furthermore, the study provides constraints for the pre-Neogene orogenic evolution of this junction zone, including the affinity of major crustal blocks, obducted ophiolitic sequences and the Sava suture zone.Citation: Matenco, L., and D. Radivojević (2012), On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides, Tectonics, 31, TC6007,

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Section: The Miocene Structural Geometry Of the Pannonian Basin In Sesupporting

confidence: 75%

Section: The Miocene Structural Geometry Of the Pannonian Basin In Sementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides

2012

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“…As both shallow-and deepwater coarse sediments of this large, longlived lake are targets of hydrocarbon exploration (Dank 1988;Magyar et al 2006), they are penetrated by thousands of wells and covered by a dense network of seismic profiles.…”

Section: Introductionmentioning

confidence: 99%

Water-level changes and their effect on deepwater sand accumulation in a lacustrine system: a case study from the Late Miocene of western Pannonian Basin, Hungary

Uhrin¹,

Sztanó

2011

Int J Earth Sci (Geol Rundsch)

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Major deepwater sand accumulations are known to be connected to sea-level lowstands in marine basins, due to the relative lack of accommodation space on the shelf. This model was tested for the Late Miocene Lake Pannon, a large endorheic lake depositing a sedimentary succession up to 3-4 km thick. The progradation of the shelf between 9.7 and 6 Ma was tracked along a 2D seismic network. The shelf-edge trajectory indicates continuous, moderate lake-level rise between 9.7 and 9 Ma. This is followed by alternating intervals of quasi-steady and rapidly rising relative lake level with a period of ca. 250 ky. However, due to the lack of significant lake-level drops, no third-order sequence boundary was identified in the studied time span (9.7-6 Ma). The sand ratio of the deepwater deposits does not show strong correlation with these lakelevel changes; moreover, the units deposited under rising lake-level conditions generally contain slightly larger proportion of sand. These features can be explained by the climatic origin of water-level rises: increasing precipitation enhances not only water inflow, but also sediment influx, which can overwhelm the well-known effect of accommodation space on the sand transport toward the deep water. The results suggest that shelf-margin trajectory might not be an efficient tool for predicting deepwater accumulations of sand in endorheic lacustrine basins.

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“…However, the giant Algyő oil and gas field is located adjacent to the M-H trough. [8] Samples were chosen from the M-H trough originating from different wells and layers, and from outside the trough from different wells to examine the differences and similarities and test the isotope type-curve methods for oils of known origin. For proprietary reasons, the names of the wells and fields have been changed.…”

Section: Geological Setting and Samplesmentioning

confidence: 99%

Hydrogen isotope type‐curves of very hot crude oils

Fekete¹,

Sajgó²,

Demény³

2010

Rapid Comm Mass Spectrometry

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Several crude oil accumulations in the Pannonian Basin are trapped in uncommonly hot (>170°C) reservoirs. Their maturities range from mature to very mature on the basis of cracking parameters of their biological marker homologous series (ratio of products to reactants). A stable carbon isotopic study of these oils, poor in biological markers commonly used for correlation purposes, did not provide a reliable oil-to-oil correlation. As an alternative tool, the hydrogen isotope compositions of oil fractions separated on the basis of different polarities were measured, and hydrogen isotope type-curves were generated for a set of mature to very mature crude oil samples. This method of presenting hydrogen isotope composition of fractions as type-curves is novel. Nineteen samples (17 crude oils from SE-Hungary, 1 oil condensate and 1 artificial oil) were chosen for the present study. The aim was to examine the applicability of hydrogen isotope type-curves in oil-to-oil correlation and to test the simultaneous application of carbon and hydrogen isotope type-curves in the field of petroleum geochemistry. We have shown that, although the conventionally used co-variation plots proved to be inadequate for the correlation of these hot and mature oils, the simultaneous use of carbon and the newly introduced hydrogen isotope type-curves allows us to group and distinguish oils of different origins.

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The Largest Hydrocarbon Field Discovered to Date in Hungary<subtitle>Algyo</subtitle>

Cited by 13 publications

References 17 publications

On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides

On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides

Water-level changes and their effect on deepwater sand accumulation in a lacustrine system: a case study from the Late Miocene of western Pannonian Basin, Hungary

Hydrogen isotope type‐curves of very hot crude oils

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