Structural and depositional evolution of the East

Conference · Wed Jan 01 00:00:00 EST 1992 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:5905728

Reed, J J ^[1]; Fleischmann, K H ^[2]; Schamel, S ^[3]

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1. Savannah River Group, Westinghouse, Aiken, SC (United States)
2. Univ. of Texas, Dallas, TX (United States)
3. Univ. of South Carolina, Columbia, SC (United States)

The East Slovakian Basin, eastern Czechoslovakia, is a Neogene back-arc extensional and transtensional basin that formed during east and northeast shortening across the Outer Carpathian fold and thrust belt. Analysis of seismic, well log and outcrop data indicate three principal phases of structural evolution: (1) Early transtension, (2) Basin-wide downwarping, and, (3) Late compression and transpression. Initial clastic deposition occurred in the northwest corner of the present-day basin during Egerian/Eggenburgian time. Sedimentation accompanied increasing subsidence through the Karpatian, Badenian and into the Lower Sarmatian. Following Sarmatian time the rate of sedimentation slowed, and deposition was restricted to the southeastern part of the basin. Deposition occurred in a shallow marine to transitional environment, becoming more terrestrial through time. Early deposition occurred along an east to southeast axis with the depocenter axis rotating through time in a clockwise direction. The East Slovakian Basin has been heavily explored and is currently producing predominantly dry gas from five different fields. Wet gas is produced only from the Ptruksa anticline, a phase one structure while dry gas is produced from phase three structural traps. This implies that late-forming hydrocarbon traps combined with high heat flow may preclude the entrapment of liquid phase hydrocarbons.

• OSTI ID: 5905728
• Report Number(s): CONF-921058-; CODEN: GAAPBC
• Journal Information: Geological Society of America, Abstracts with Programs; (United States), Vol. 24:7; Conference: 1992 annual meeting of the Geological Society of America (GSA), Cincinnati, OH (United States), 26-29 Oct 1992; ISSN 0016-7592
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
CZECHOSLOVAKIA
NATURAL GAS DEPOSITS
DEFORMATION
DEPOSITION
GEOLOGIC HISTORY
GEOLOGIC STRUCTURES
NATURAL GAS
PRODUCTION
SEISMIC SURVEYS
WELL LOGGING
DEVELOPING COUNTRIES
EASTERN EUROPE
ENERGY SOURCES
EUROPE
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
RESOURCES
SURVEYS
030200* - Natural Gas- Reserves
Geology
& Exploration