Sedimentary basin analysis using airborne gravity data: a case study from the Bohai Bay Basin, China

Li, Wenyong; Liu, Yanxu; Jian-xin, Zhou; Zhou, Xiaoxia; Li, Bing

doi:10.1007/s00531-015-1284-x

Cited by 4 publications

(1 citation statement)

References 35 publications

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“…The resolution of such studies is more appropriate for regional tectonics than for basin studies. Land gravity studies [15,16] and airborne gravity survey [17] have proven effective in mapping the basement topography. In this study, we propose an interpretation of newly acquired gravity data to delineate basin structures around the Atambua area (Figure 2).…”

Section: Introductionmentioning

confidence: 99%

Basin Study in Atambua, West Timor, Indonesia from Gravity Data

Wijanarko¹,

Arisbaya²,

Sumintadireja

et al. 2022

J. Math. Fund. Sci.

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Timor Island, Indonesia has complex geological structures related to its tectonic history. There is an existing subsurface geological model that is based on geophysical data. It is limited to the regional crustal scale and has a relatively low spatial resolution. The objective of our study was to delineate the sedimentary basin configuration of the area, both laterally and vertically, based on gravity data. Spectral analysis of the Bouguer anomaly allowed for anomaly enhancement by wavenumber domain filtering. Two main basins were identified from elongated low gravity anomalies that follow a SW-NE trend, i.e., the Central Basin and the Atambua Basin. The 2½D gravity modeling of selected profiles perpendicular to the regional structural direction revealed the sedimentary fills of the basins and the basement based on their densities. The Bobonaro mélanges and Viqueque sequences dominate and overlay the syn-rift (Kekneno sequences) and post-rift (Kolbano sequences) with varying lithology. These para-autochthon sediments are dominated by shale and carbonaceous rocks. Their respective thicknesses and depths of burial imply the possibility of hydrocarbon generation. The underlying basement may be associated with the Australian crust protruding from the south.

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Section: Introductionmentioning

confidence: 99%

Basin Study in Atambua, West Timor, Indonesia from Gravity Data

Wijanarko¹,

Arisbaya²,

Sumintadireja

et al. 2022

J. Math. Fund. Sci.

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Deep structures underneath the Sihong Segment of the Tan-Lu Fault Zone, Eastern China: Interpretations of gravity anomaly and seismic profiles

Ren

Zeng

et al. 2019

Journal of Asian Earth Sciences

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Subsurface modelling of Kei Kecil Island with 3D gravity inversion

Supriyadi

Wijanarko²,

Khumaedi

2021

J. Phys.: Conf. Ser.

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Kei Kecil Island located at Kei Islands, Maluku Province, Indonesia and it is one of outer Banda Arc. Several compression and extension tectonic accoured in Kei Island that made complex regional structural geology there. Mapping of surface geology has been done by several geoscientists, but subsurface mapping is still challenging. This paper aims to image subsurface geological features in Kei Island and its surrounding. Gravity method carried out to obtain density configuration for interpretation of basin topography. Gravity data obtained from previous publication and the other collected through satellite-derived gravity. Result of analyses show Kei Kecil Island located at depocenter of the basin around the high of the surroundings. Trending of the basin is Northeast–Southwest to North-South. Interpretation reveals basin in the Kei Kecil Island situated in central part toward northern trending almost North-South direction. The higher density rock dominating southern area of the island caused by Weduar and Elat Formation from Kei Besar Island. The denser density dipping from Kei Besar Island to Kei Kecil Island with Northwest direction. The basins in Kei Kecil Island probably produce hydrocarbon.

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Sedimentary basin analysis using airborne gravity data: a case study from the Bohai Bay Basin, China

Cited by 4 publications

References 35 publications

Basin Study in Atambua, West Timor, Indonesia from Gravity Data

Basin Study in Atambua, West Timor, Indonesia from Gravity Data

Deep structures underneath the Sihong Segment of the Tan-Lu Fault Zone, Eastern China: Interpretations of gravity anomaly and seismic profiles

Subsurface modelling of Kei Kecil Island with 3D gravity inversion

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