The Ayutthaya Basin is a N-S trending Cenozoic basin located in Lower Central Plain Thailand. The basin overlies on Mae Ping fault zone in NNW-SSE trend. 2D seismic sections and well data are included to illustrate a structural and stratigraphic variation in the basin. Surface map, isopach map, tectono-stratigraphy and structural evolutionary model are presented in this study. Ayutthaya basin is characterized by half-graben geometry which is eastward tilted. The major faults are west dipping normal fault with N-S oriented. The evolution of Ayutthaya basin can be divided into 4 phases. The first phase commences with extensional rifting in which the basin was developed during the Late Oligocene to Middle Miocene period. Subsequently, the extensional stress ended and subsidence phase had increased. After that, the stress regime had changed to the NNW compression which episodically resulted in strike-slip reactivation and basin inversion phase. Finally, the overall stress has been stopped in Pliocene. Basins were subsided without significant tilting or rotating.

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QBM5013 - BASIN & STRUCTURAL DYNAMICS

Past Year Exam Question · UTPedia (Universiti Teknologi Petronas) · 2023

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Structural controls on basin evolution

Cloetingh, S.A.P.L., Fernandez, M., Munoz, J.A. et al. · Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) · 1997

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OBQ5013- BASIN & STRUCTURAL DYNAMICS

Past Year Exam Question · UTPedia (Universiti Teknologi Petronas) · 2024

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Structural characteristics of northern Houtman sub-basin, Perth Basin

Chris Southby, Irina Borissova, Lisa Hall et al. · ASEG Extended Abstracts · 2018

The northern Houtman Sub-basin is an under-explored region of Australia’s western continental margin. It is located at the transition between the non-volcanic margin of the northern Perth Basin and the volcanic province of the Wallaby Plateau and lies adjacent to the Wallaby-Zenith Transform Margin. In 2014, Geoscience Australia acquired new 2D seismic data (GA-349, 3455 km) across the northern Houtman Sub-basin to assess its hydrocarbon prospectivity. Previous studies of the Houtman Sub-basin indicated that en-echelon basin bounding N-NW trending faults are associated with the Permian half graben complex, however, it was not known if this structural style continued into the northern area of the Houtman Sub-basin. This study integrated interpretation of the recently acquired survey, with regional interpretation of the Houtman Sub-basin. This was further supported by well data and geophysical modelling and a regional 2D structural and stratigraphic interpretation developed. Structural mapping was done for the basement, Early Triassic (Woodada Formation) and Early Jurassic (Eneabba Formation).The basement structure of the northern Houtman Sub-basin is controlled by a series of large en-echelon NW-SE trending SW dipping faults, some of which have a throw of more than 10 km. These basement-involved faults control a series of Permian half graben separated by transfer zones and fault ramps. This basement architecture is similar to the inboard part of the southern Houtman Sub-basin, however the structures are larger. The Early Triassic and Early Jurassic faults trend NW-SE similar to the basement-involved faults, however major faults within the Jurassic succession lie about 50 km to the west of the Permian faults.Interpretation of the northern Houtman Sub-basin reveals a structurally complex basin containing a wide range of structural and stratigraphic traps at several stratigraphic levels. Potential plays have been identified in the upper Permian, Triassic and Jurassic successions. They include large stratigraphic plays in the Upper Permian/Lower Triassic, rollover anticlines within the Lower Triassic and Jurassic, and fault propagation folds and fault block plays in the Jurassic.

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Structural and kinematic analysis of a transpressional basin: Çiçekdağ Basin

Tokay, Bülent, Lefebvre, Come · OpenMETU (Middle East Technical University) · 2015

The Central Anatolian Crystalline Complex (CACC), which lies within Turkish Alpine orogenic belt, incorporates several basins located either within the complex or at and along its boundaries. Many of the basins developed during extension since Late Cretaceous and then evolved with advancing collision of Anatolide-Tauride with Pontides. With regard to deformation and evolution of the region, recent paleomagnetic study from the central Anatolian intrusives defines three blocks with characteristic rotation, pointing out the break-up of the CACC and the formation of two deformation zones between blocks. This study is focused on Çiçekdag Basin (ÇB) which is located within ˘ one of the intensely deformed zones in the CACC. The structural analysis within and around ÇB in support of these models and claims is, however, limited. Thus this present study aims to provide more structural data that bears on the evolution of the Çiçekdagı Basin as well as the CACC, especially during regional contraction taking place at ˘ the end of the Eocene. Major structures of the study area fall into six groups: (i) E-W-trending synclines and a burried major reverse fault, suggesting N-S shortening; (ii) approximately NW-SE-trending plunging en-échelon folds, consistent with NE-SW compression; (iii) a NW-SE-trending (130◦ ) left-lateral strike-slip fault; (iv) E-W-trending (260◦ ) normal fault at southern edge of the basin and NW-SE-trending (∼150◦ ) normal fault; (v) NE-SW-trending reverse faults (∼050◦ -055◦ ) in the north of and middle of the basin, with hanging wall syncline geometry compatible with NWSE to N-S compression; (vi) WNW- ESE trending reverse faults implying nearly N-S compression. At this stage, it is not clear to us if all these structures were encountered within the same strain field or they belong to a poly-phase deformation. This will be evaluated and discussed further.

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Stratigraphic-structural characteristics of Macva basin

Ivana Carević, Velimir Jovanović · Glasnik srpskog geografskog drustva · 2009

The analysis of stratigraphic-structural features of Macva basin had been conducted in this paper on the basis of data obtained with deep exploratory boring performed for the needs of hydrogeothermal research project for the purpose of identifying the reserves of geothermal energy of Macva. The research has been carried out with the aim of finding out the relation between the Tertiary and its Triassic bedrock (Ladinian and Carnian stages) in which process the considerable realistic image of paleorelief (the bedrock of Tertiary deposits) was obtained.

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Structural trends in the Illinois Basin,

Cohee, George Vincent, 1907-, Carter, Charles William, 1908- · The Journal of the Abraham Lincoln Association

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Structural Geology of Crazy Mountains Basin: ABSTRACT

Howard Garrett · AAPG Bulletin · 1973

The Crazy Mountains basin is a physiographic depression, as well as a structural basin in south-central Montana. The basin is bounded on the north by the Castle Mountains, Shawmut anticlinal trend, and the Huntley-Lake basin fault zone; on the west by the Bridger and Big Belt Mountains, on the south by the Nye-Bowler lineament and the Beartooth Range; and on the east by the Pryor-Big Horn uplift. Separation of the Crazy Mountains basin from the Big Horn basin to the south is arbitrarily placed along the Nye-Bowler lineament. The Crazy Mountains are a passive intrusive complex occupying the deeper part of the basin. This setting is analogous to the Raton basin of the Colorado and its associated Spanish Peaks intrusives. The structural pattern of the Crazy Mountains basin is somewhat enigmatic, being most varied and diverse. Structures within the basin resulted from the superposition of Laramide compression on an earlier fragmented Precambrian crystalline basement. The resulting structures are folds related to thrusting; drape folds over faults with dip-slip movement; and en echelon folds with gash fractures related both to left-lateral and right-lateral transcurrent fault movement. End_of_Article - Last_Page 956------------

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Structural analysis of 105 K Basin monorails

S. Kanjilal · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1995

Structural analysis of 105 K Basin monorails. The analysis addresses all monorails in the K basin and documented the load carrying capacity of each monorail.

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Structural analysis of the Cretaceous Pungam Basin

Hee-Kwon Lee · Journal of the geological society of Korea · 1998

The Pungam Basin is one of the Cretaceous sedimentary basins developed along the Kongju fault system. The geometry of the Keumwang fault zone in the study area suggests that it is a transpressional basin formed at a gentle restraining bend resulting in uplift of one margin and downdropping of the basin as one block moves past the restraining bend of the fault zone. The Keumwang fault zone, the most significant structure in the study area, is a sinistral strike slip fault zone with a width of up to 400 m. The cataclasites occurring within the Keumwang fault zone indicate that the ductile shear zone evolved into the brittle fault zone as the whole block uplifted. Cataclastic foliation is very well developed in the massive mudstone within the fault zone, suggesting the reactivation of the fault zone after deposition of the mudstone. A detailed structural analysis indicates that folds, joints and faults were formed in the sedimentary rocks by strike-slip movement of the Keumwang fault zone. The systematic arrangement of these structural elements was caused by transpressional movement of the fault zone in the southwestern part and by transtensional movement of the fault zone in the northeastern part of the Pungam Basin.

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Reversible 3D Structural Deformation for Basin Modelling

M. Thibaut, Natacha Gibergues, Jean‐Pierre Gratier et al. · 68th EAGE Conference and Exhibition incorporating SPE EUROPEC 2006 · 2006

We use seismic tomography at time delays of first-arrival waves in order to solve this problem. Special 2D time fields t(õ,l) of reference waves are used for velocity inversion. It allows us to combine wave-arrival times into a unified system when observed with different details, and also when isolated travel-time curves are not correlated. The developed technology of seismic tomography is common in different problem-solving in oil and ore geology and in studying deep Earth’s crust of Siberia. These problems are as follows: - Interpretation of first waves recorded by CDP method in ore regions makes it possible to study the uppermost heterogeneous layer of the Earth’s crust and to forecast new ore knots and investigate their structures; - Problem-solving in prospecting for oil and gas in West Siberia allows studying structures and compositions (in combination with drilling logs) of the oil-and-gas Paleozoic, which is rather difficult to do by CDP method; - Illumination of the inner structure of the deep Earth’s crust and disclosure of wave guides, zones of disintegration, deep faults.

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Deep Structural Imaging in the Vienna Basin

Ahmed Mamdouh, Klaus Pelz, S. Bezdan et al. · First Break · 2023

Reprocessing of a recent wide azimuth vibroseis survey in the Vienna basin, followed by detailed anisotropic velocity model building and pre-stack depth migration, has led to an improved understanding of the subsurface structure, helping to de-risk future drilling decisions. Several processing and imaging routes were investigated, including common reflection surface stacking, 5D regularisation, Kirchhoff and common reflection angle migrations, using an interpretation-constrained velocity model. Results for the different routes are compared, with an assessment of the interpretational uplift obtained with the different approaches.

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Structural Controls on Rift Basin Depositional Systems

Robert C. Shoup · 2019

Summary There are three archetypal rift basin geometries: asymmetric half grabens, symmetric sags and grabens, and compound basins. The basin geometry in turn imparts a fundamental control on the distribution of the various depositional systems within the rift . Outcrop observations in several Triassic rift basins in north eastern Thailand combined with well, core, and depositional environment maps from twenty six Tertiary rift basins in Southeast Asia indicate that the distribution of synrift lacustrine source rocks and reservoir sequences are remarkably similar in continental rift basins. In that the relationship of the depositional systems to the basin geometry is highly predictable interpreters have the means to define the elements of the rift basin’s petroleum system.

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