The Upper Cretaceous facies of Enugu Area are part of the sequence in the Anambra Basin of Southeastern Nigeria. These include the Enugu Shale, Mamu Formation, Ajali Sandstone and Nsukka Formation. The deformation structures within the Upper Cretaceous in Enugu area were dominant to sandstones of the Marnu Formation. The white silty fine sandstone, muddy fine sandstone and heteroliths of this f...

In recent years, Airborne Laser Bathymetry (ALB) has proven to be a timely and costly effective method for surveying extensive coastal regions. Along with gathering precise topographic and bathymetric data, ALB systems are now being considered for small target detection, water column characterization, sediment budget evaluation, and nearshore environmental classification. In fact, various envir...

Relating sedimentary records to seismic data is a major challenge. By shifting focus to a scale-invariant sharpness characterization for the reflectors, we develop an attribute that can capture and categorize the main reflector features, without being sensitive to amplitudes. Sharpness is defined by a scale exponent, which expresses singularity order and determines the reflection signature/wave...

A high resolution seismic survey was conducted in the Patos Lagoon, southern Brazil, aboard of the research vessel LARUS of the Fundação Universidade Federal do Rio Grande (FURG). Around 400 km of 3.5 kHz seismic profiles were collected, which provided acoustic signals of good penetration depth and resolution. Seismic anomalies, including turbidity and pocket gas, revealed that gas-charged sedi...

Carter, R M, 1975 A discussion and classlfmatlon of subaqueous mass-transport with particular application to gram-flow, slurry-flow, and fluxoturbldltes Earth-Sci Rev, 11 145--177 Sediments will remmn at rest on the sea-floor provided forces of shear resistance exceed the downslope shear stress imposed by gravity The shear resmtance of granular water-saturated sediments IS dmcussed within the c...

the kashkan formation (paleocene to middle eocene), consists of conglomerate, sandstone, and siltstone in the zagros folded zone, southwest iran. type of the sedimentary facies, architectural elements and trace fossils show that kashkan deposits were formed in a low sinuosity braided stream system, with north to south flow direction. the formation displays coarsening-upward succession reflects ...

The Corg:P ratios of organic-rich facies (TOCN1%) exhibit considerable variation through the Phanerozoic, from b10:1 in the Permian Phosphoria Formation to N1000:1 in some Devonian black shales. Relative to the composition of phytoplankton (C:P ∼106:1), which provide the bulk of organic C and P to organic-rich marine sediments, the range of Phanerozoic sedimentary Corg:P ratios largely reflects...