FIG. 1.—Alternative explanations of strata exhibiting progradational followed by retrogradational stacking. In Interpretation 1, the switch in stacking patterns is interpreted as a combined type I sequence boundary (SB(I)) and transgressive surface (TS), underlain by the highstand systems tract (HST) and overlain by the transgressive systems tract (TST). In Interpretation II, the switch in stac...

Straits are crossed by marine currents that amplified due to constrictions. These nearshore high-velocity flows problematic for offshore infrastructures (bridge pillars, cables, pipelines, etc), but constitute an interesting carbon-free energy source. Many modern straits dominated tidal which flow axially, with reversal directions and phase difference between the two interlinked basins. interpl...

Abstract Sequence stratigraphy and Electrosequence of the Don-Field Central Swamp depobelt Niger Delta Basin, was carried out using well logs, biostratigraphic core data. The aim this study is to re-characterise revalidate reservoirs within area provide an optimum framework for predicting reservoir character, development quality distribution. Detailed petrophysical evaluation reveals proficient...

The historical sediment record of Lake Sonachi (Kenya) was used to study the influence of lake depth and mixing regime on patterns of sedimentation in a small, fluctuating tropical soda lake. Lake Sonachi last desiccated completely in the early nineteenth century and has fluctuated between 3and 18-m lake depth over the past 115 yr. A freeze-core of offshore sediments describes recent lake histo...

Exploration of the Black Sea shelf reveals two major shelf-crossing unconformities. The older unconformity separates mostly-barren deposits of late glacial age from overlying Neoeuxinian sediment containing fresh to brackish fauna. This unconformity can be traced over the shelf edge to depths beyond –140 m. The substrate below is dry, firm, and contains unchallenged evidence of subaerial exposu...

Richards Bay is part of a back-barrier lagoon fronted by high coastal dunes on the NE, Indian Ocean coast South Africa. In early 1970s, berm was constructed, dividing original Mhlathuze Estuary into two separate systems; Harbour and new Estuary. This study investigates stratigraphic evolution incised valley system bayhead delta in segment. Seven seismic units (Units 1–7) were imaged. A single r...

Ketzer, J. 2002. Diagenesis and Sequence Stratigraphy. an integrated approach to constrain evolution of reservoir quality in sandstones. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 762. 30 pp. Uppsala. ISBN 91-554-5439-9 Diagenesis and sequence stratigraphy have been formally treated as two separate disciplines in s...

Sea ̄oor geomorphology and sur®cial stratigraphy of the New Jersey middle continental shelf provide a detailed record of sea-level change during the last advance and retreat of the Laurentide ice sheet (t120 kyr B.P. to Present). A NW±SE-oriented corridor on the middle shelf between water depths of ,40 m (the mid-shelf apaleo-shoreo) and ,100 m (the Franklin apaleoshoreo) encompasses ,500 line-k...

Integration of ichnologic, sedimentologic, and stratigraphic studies of cores from Lower Pennsylva-nian oil and gas reservoirs (lower Morrow Sandstone, southwest Kansas) allows researchers to distinguish between estuarine-and open-marine deposits. This study represents one of the first published ichnologic analyses of a Paleozoic reservoir and, therefore, provides a unique opportunity to test t...