Research Article| May 01, 2009 The deep-water fold-and-thrust belt offshore NW Borneo: Gravity-driven versus basement-driven shortening S. Hesse; Hesse † 1Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, D-52056 Aachen, Germany †E-mail: hesse@geol.rwth-aachen.de Search for other works by this author on: GSW Google Scholar Back; Back D. Franke 2Federal Institute Geosciences and Natural Resources (BGR), Stilleweg D-30655 Hannover, Author Article Information Publisher: Geological...

A new approach for restoring sediment volumes onto the source area to estimate uplift timing and magnitude is discussed used in context of late Tertiary basin topographic development NW Borneo. Sediment Baram Deltaic Province were estimated four time periods (latest Early, Middle Late Miocene, Pliocene–Recent), using 2D 3D seismic horizons, wells outcrops. Volume restoration palaeo-sediment determined exhumation amount at drainage divide ( c . 5 km from 17 Ma Recent) provided a reasonable...

Manual fault mapping in 3D seismic interpretation is labor-intensive and time-consuming. Complex geometries the distortion of signal close to faults complicate full automation fault-mapping process. We present a semiautomatic fault-tracking method for data that consists highlighting followed by model-based tracking. Fault uses log-Gabor filters emphasizing oriented amplitude discontinuities at presence noise. Subsequent tracking fits an active contour highlighted voxels. The searches...

Abstract: Classically, the North Sea Chalk is interpreted as having been deposited under quiet, homogeneous pelagic conditions with local redeposition in slumps and slides. Recent observations of highly discontinuous reflection patterns on 2D 3D seismic data from NW European Group have led to a revision some general ideas chalk deposition, suggestion that long-lived, contour-parallel bottom currents exerted primary influence development intra-chalk channels, drifts mounds. This study...

Abstract The Miocene sedimentary succession of the southern Browse Basin records response a tropical reef system to long‐term, strong subsidence on passive continental margin. Geological interpretation comprehensive two‐dimensional (2D) seismic reflectivity data set documents for first time development continuous barrier Australian North West Shelf. With length over 250 km, this is among Earth's largest in Neogene record. A sequence stratigraphic analysis tied well shows that main controls...

Abstract:  Extensive 2D and 3D seismic-reflection data calibrated by wells provide new insights into the lateral extent, morphology, internal architecture, age of carbonate platforms in subsurface Browse Basin, Australian Northwest Shelf (NWS). The oldest build-ups are interpreted as a giant bryozoan build-up complex Oligocene (34.03–27.8 Ma). In late Burdigalian, tropical reef growth began, numerous reef-rimmed progressively coalesced an extensive barrier reef. From mid-Langhian to early...

Abstract This study analyses the three‐dimensional geometry of sedimentary features recorded on modern sea floor and in shallow subsurface a shelf to upper slope region offshore Australia that is characterized by pronounced internal wave regime. The data interpreted comprise an extensive, >12 500 km 2 industrial seismic‐reflection survey images northern part Browse Basin, Australian North West Shelf. most prominent seismic–morphological are submarine terrace escarpments, fault‐scarps...

Inorganic precipitation of aragonite is a common process within tropical carbonate environments. Across the Northwest Shelf Australia (NWS) such precipitates were abundant in late Pleistocene, whereas present-day sedimentation dominated by calcitic bioclasts. This study presents sedimentological and geochemical analyses core data retrieved from upper 13 meters IODP Site U1461 that provide high-resolution sedimentary record last ~15 thousand years. Sediments formed 15 to 10.1 ka BP are...

Kilometre-scale synsedimentary faults associated with well-preserved sedimentary successions on both hanging-wall and footwall sides are rarely seen in outcrop. However, one such example is found a Middle Miocene deltaic sand–shale sequence exposed along the Jerudong Anticline onshore Brunei Darussalam. Integration of detailed outcrop information regional geophysical subsurface data documents that: (1) initiation Jalan Tutong growth fault was related to delta-front instability failure; (2)...

Abstract After Mesozoic rifting, the Atlantic margin of Morocco has recorded consequences continental collision between Africa and Europe relative northward motion African plate over Canary Island hotspot during Cenozoic times. Interpretation recently acquired 2D seismic reflection data ( MIRROR 2011 experiment) presents new insights into Late Cretaceous to recent geodynamic evolution this margin. Crustal uplift presumably started triggered regional tilting in deep‐water west Essaouira...

In the past two decades, numerical forward modeling of petroleum systems has been extensively used in exploration geology. However, influenced by magmatic activity not a common practice, because it is often associated with additional uncertainties and thus high risk exploration. Subsurface processes volcanic influence all elements may have positive negative effects on hydrocarbon formation accumulation. This study integrates 3D seismic data, geochemical well data to build detailed 1D models...

Abstract Pleistocene glacial stages were implemented into a 3D basin and petroleum systems model of the northeastern Netherlands to address influence low surface temperatures mechanical loading ice sheets on subsurface. Two sheet thickness scenarios used based published data. Overall, Quaternary have substantial impact temperature pressure distribution in Subsurface are significantly reduced during stages, leading lowered present-day geothermal gradient shallow In deeply buried sedimentary...

This study examines eight syndepositional faults and syntectonic sediments in five major fault blocks western Niger Delta, offshore Nigeria, on three-dimensional seismic data. The initiation, lateral growth retreat, periods of activity quiescence, decay faulting around these can be ascertained by analyzing a series time-structure isopach maps. area subdivided into three structural zones. first zone is northwestern characterized counterregional the deep subsurface. deep-seated structure...