Showing papers in "Marine and Petroleum Geology in 2004"

TL;DR: In this article, the evolution of sedimentary depocenters from the Late Cretaceous (obduction episode) until early Miocene collision is described, based on updated isopach maps and tectonic subsidence curves.

TL;DR: In this article, the authors used data gleaned from the literature on the Zagros have been compiled and used in conjunction with new interpretations to provide a better picture of the structures, sedimentation history and deformation of this hydrocarbon rich Mountain Belt.

TL;DR: The southern South China Sea is divided into contrasting morphology by the West Baram Line as mentioned in this paper, which separates the collision zone from the western extinct passive margin; and is a now extinct major right-lateral transform fault.

TL;DR: The authors distinguish five main controlling parameters interacting in fluid release locations: (1) the presence, at depth, of potential source rocks and reservoirs; (2) the distribution of Messinian evaporites preventing upward fluid migration; (3) the distributions of sedimentary overloading inducing localized overpressures on undercompacted and fluid-rich sediments; (4) syn-sedimentary faults acting as potential conduits for fluid migration, and finally (5) chiefly for pockmarks and mounds, the occurrence of large-scale sedimentary instabilities.

TL;DR: In this paper, the authors found that the high concentrations of H 2 S gas are found at depths >3000m (temperature now at ∼100°C) in evaporated platform facies oolitic dolomite or limestone that contains anhydrite nodule occurrence within the reservoirs.

TL;DR: In this article, a series of scaled analogue models designed to simulate thrust belt development formed by orthogonal and oblique convergence were constructed from homogeneous layered sandpacks in a 3m×1.3m deformation rig.

TL;DR: In this article, bottom simulating reflectors (BSR) cross-cut the post-breakup sediments of the mid-Norwegian margin and are always observed underneath opal A/opal CT transition, but heat flow data and the amplitude characteristics of this arrival exclude one of the known silicate diagenetic transitions or gas hydrates as the explanation for this reflector.

TL;DR: In this article, the Apulian Platform Carbonates form the reservoir unit in several major oil fields in the Val d'Agri area of southern Italy, and they are formed by compressional fold structures developed in the hanging wall of major reverse faults.

TL;DR: In this article, a new tectono-sedimentary model is proposed for one of the most important syn-tectonic sedimentary unit, the Gachsaran salt in the Zagros foreland basin.

TL;DR: In this article, Petrographic analysis combined with X-ray diffraction, stable isotope, fluid inclusion and core analysis have been used to assess: timing of growth and origin of mineral cements, whether sandstone diagenesis involved mass flux, the controls on reservoir quality and how reservoir quality is likely to vary in more deeply buried sections.

TL;DR: In this paper, a high-velocity lower crustal dome marked by a strong amplitude reflection (T Reflection) is described below the north Gjallar Ridge (NGR) near the volcanic plateau formed during the late Paleocene-Early Eocene breakup.

TL;DR: In this paper, a plan-view restoration of the Amazon Fan has been carried out and it is shown that extensional and contractional structures root into a common basal detachment, hundreds of kilometers long.

TL;DR: In this paper, the authors present a database of garnet compositional data from river sediments sourced from northern Scotland and Norway, and demonstrate the presence of marked variations in garnet compositions from different regions related to fundamental differences in basement lithology.

TL;DR: In this paper, the authors reconstruct the architecture and growth history of a Miocene carbonate platform in the Luconia province, offshore Sarawak, Malaysia, using 3D seismic reflection data and wireline logs.

TL;DR: In this article, the authors provide an overview of the North West Borneo deepwater fold and thrust belt and introduce some key issues and challenges for future hydrocarbon exploration in the region.

TL;DR: In this paper, the results of laboratory compaction tests on samples of Kimmeridge clay taken from two different locations in the UK were presented to determine how diagenesis affects the hydro-mechanical properties and compaction behavior of argillaceous sediments.

TL;DR: The Bandar Abbas syntaxis marks the transition between the Zagros collisional belt and the Makran subduction-related prism and constitutes a major structural feature within the Alpine-Himalayan mountain belt as mentioned in this paper.

TL;DR: Fault intersections are identified as important sites for hydrocarbon leakage from the Skua oil field in the Timor Sea, Australia as mentioned in this paper, and the potential for fluid leakage from these zones may be further enhanced where low shear strain occurs due to mechanical locking at the fault intersection.

TL;DR: In this article, two deep seismic reflection profiles from the South Caspian basin provide the first normal-incidence image of possibly the thickest sedimentary basin in the world.

TL;DR: In this paper, the effects of laboratory heating rates on pyrolytic parameters and geological extrapolations were investigated in the context of bulk petroleum generation by open-system programmed-temperature pyrolysys of Green River Shale, Toarcian Shale and Westfalian coal samples.

TL;DR: In the Tampen Spur area of the North Sea, a large-scale conical amplitude anomaly was identified as mentioned in this paper, with dimensions ranging from 100 to 200 m height and a few hundred metres to a few kilometres lateral extent.

TL;DR: Based on field work and seismic profiles, the structural styles and their formation mechanisms were determined, and the role of evaporites in the deformation was demonstrated as discussed by the authors, and the main structural styles in the overburden are detachment folds, large scale nappes, triangle zones, gentle and wide synclines, fault-propagation folds and pop-ups.

TL;DR: In this paper, the authors examined outcrops in the Apsheron region of the South Caspian Basin, and found that sandstone-prone intervals, interpreted as deposition during periods of increased fluvial discharge and sediment supply, and mudstone-plastic-rich intervals were interpreted as sediment starvation and therefore coarse-grained sediment starvation.

TL;DR: In this paper, geochemical studies of mudstones from boreholes in the Permian Skoorsteenberg Formation in the Karoo Basin of South Africa were undertaken to assess stratigraphic and provenance evolution and the feasibility of chemostratigraphic correlation.

TL;DR: In this article, a 2D seismic grid in the South Caspian Basin, offshore Azerbaijan, is used to define the areal distribution of mud volcanoes and to make a classification of the mud volcano based on characteristic seismic features.

TL;DR: In this article, the elastic properties of gas-saturated sediments can be predicted by the classical Biot-Gassmann theory (BGT), but parameters for the BGT such as the Biot coefficient or moduli of dry frame of unconsolidated and high porosity sediments are not readily available.

TL;DR: In this article, the East China Sea Basin is characterized by present-day heat flow around 70.6 mW/m 2, varying between 55 and 88 mW /m 2.

TL;DR: The combination of core and cuttings analyses and well-log data from the Late Oligocene-Early Miocene carbonate buildup in the Malampaya gas field (Offshore Palawan, Philippines) allowed the recognition of shelf depositional paleoenvironments and the definition of high-frequency, metre-scale, subtidal cycles, usually bounded by exposure surfaces.

TL;DR: In this paper, the influence of seafloor deformation on the morphology of gravity flow deposits, both at regional (×100 km) and local (1-10 km) scales and for 0.5-10