Geological evolution, regional perspectives and hydrocarbon potential of the northwest Phu Khanh Basin, offshore Central Vietnam

Fyhn, Michael B.W.; Nielsen, Lars Henrik; Boldreel, Lars Ole; Thang, Le Duc; Bojesen‐Koefoed, Jørgen A.; Petersen, Henrik I.; Huyen, Nguyen Thu; Đức, Nguyễn Anh; Dau, Nguyen T.; Mathiesen, Anders; Reid, I.; Huong, Dang T.; Tuấn, Hoàng Anh; Hien, L.V.; Nytoft, Hans Peter; Abatzis, Ioannis

doi:10.1016/j.marpetgeo.2007.07.014

Cited by 82 publications

(100 citation statements)

References 46 publications

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“…The wedge-shaped sedimentary bodies are interpreted as alluvial fans/fan deltas (Fig. 15(A)), in accordance with regional analogs and the Cenozoic syn-rift depositional pattern of large parts of Southeast Asia (Lee et al, 2006;Fyhn et al, 2007;Nielsen et al, 2007). Layers of short, high-amplitude, low-frequency complex reflections, are interpreted as volcanic flows and/or sills associated with syn-rift volcanism (Fig.…”

Section: Ms1 (Late Cretaceouselate Eocene and Early Oligocene)mentioning

confidence: 54%

Seismic stratigraphy and structural analysis of the northern East China Sea Shelf Basin interpreted from multi-channel seismic reflection data and cross-section restoration

Cukur

Horozal

Kim

et al. 2011

Marine and Petroleum Geology

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Section: Ms1 (Late Cretaceouselate Eocene and Early Oligocene)mentioning

confidence: 54%

Seismic stratigraphy and structural analysis of the northern East China Sea Shelf Basin interpreted from multi-channel seismic reflection data and cross-section restoration

Cukur

Horozal

Kim

et al. 2011

Marine and Petroleum Geology

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“…In fact, these extensional structures have also been observed in southern China (e.g. Faure et al, 1996;Lin et al, 2000;Zhu et al, 2010) and Vietnam (Fyhn et al, 2009;Lin et al, 2008b). This means that the late Mesozoic extension occurs along the entire Eastern Eurasia continent, and its geodynamics requires further research.…”

Section: Tectonic Setting Of Destruction Of the Nccmentioning

confidence: 92%

Timing and processes of late Mesozoic mid-lower-crustal extension in continental NE Asia and implications for the tectonic setting of the destruction of the North China Craton: Mainly constrained by zircon U–Pb ages from metamorphic core complexes

Wang

Guo

Zheng

et al. 2012

Lithos

228

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“…The evidence for a breakup unconformity was found in the northeastern South China Sea, close to Taiwan Island, where a depositional hiatus from 37 to 31 Ma was identified based on the ages of youngest underlying and oldest overlying sediments (Lin et al 2003). In the Phu Khanh Basin, rifting was terminated by middle Oligocene uplift and erosion associated with left-lateral transpression (Fyhn et al 2009c). In the Cuu Long Basin to the west of the Southwest Subbasin (Fig.…”

Section: The Middle Miocene Unconformity (Mmu)mentioning

confidence: 99%

“…Widespread rifting occurred from the Paleocene to Eocene in the Dangerous Grounds, Phu Khanh Basin and the Pearl River Mouth Basin (Fig. 1) (Ru and Pigott 1986;Ties et al 2005;Fyhn et al 2009c). The evidence for a breakup unconformity was found in the northeastern South China Sea, close to Taiwan Island, where a depositional hiatus from 37 to 31 Ma was identified based on the ages of youngest underlying and oldest overlying sediments (Lin et al 2003).…”

Section: The Middle Miocene Unconformity (Mmu)mentioning

confidence: 99%

Rifting to drifting transition of the Southwest Subbasin of the South China Sea

Song

2015

Mar Geophys Res

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Continental rupturing process and related dynamics on the onset of seafloor spreading remain poorly understood in the opening of the South China Sea. To constrain the timing and cause of major tectonic events, we focus on the rifting-to-drifting transition of the Southwest Subbasin, which has very wide extended continental margins. By carefully interpreting rifting structures and carbonate platforms and reefs, we distinguished two major unconformities, i.e., the breakup unconformity (BRU) and the mid-Miocene unconformity, in the two conjugate margins of the Southwest Subbasin. The age of the BRU in our study area is near the Oligocene/Miocene boundary (*23 Ma). Pre-stack depth migration of a recently acquired multichannel reflection seismic profile reveals complex structures and strong lateral velocity variations associated with a 3.5 km thick syn-rifting sequence developed right at the continent-ocean boundary (COB) of the Southwest Subbasin. This syn-rifting sequence is bounded landwards by a large seaward dipping fault, and tapers out seawards. An erosional truncation, which represents the mid-Miocene unconformity landwards but the older breakup unconformity on the seaward side, occurred at the top of this sequence. The overall transitional deformation style from the rifting to drifting suggests a successive episode of rifting, faulting, compression, tilting, and erosion at the COB during the crustal thinning and mantle upwelling. Localized thick syn-rifting deposition and early deposition beneath the BRU in the oceanic domain exist only at the seaward concave part of the COB, indicating discrete rifting and seafloor spreading prior to the buildup of a unified spreading center for the entire subbasin.

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Geological evolution, regional perspectives and hydrocarbon potential of the northwest Phu Khanh Basin, offshore Central Vietnam

Cited by 82 publications

References 46 publications

Seismic stratigraphy and structural analysis of the northern East China Sea Shelf Basin interpreted from multi-channel seismic reflection data and cross-section restoration

Seismic stratigraphy and structural analysis of the northern East China Sea Shelf Basin interpreted from multi-channel seismic reflection data and cross-section restoration

Timing and processes of late Mesozoic mid-lower-crustal extension in continental NE Asia and implications for the tectonic setting of the destruction of the North China Craton: Mainly constrained by zircon U–Pb ages from metamorphic core complexes

Rifting to drifting transition of the Southwest Subbasin of the South China Sea

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