Pattern recognition on seismic data is a useful technique for generating seismic facies maps that capture changes in the geological depositional setting. Seismic facies analysis can be performed using the supervised and unsupervised pattern recognition methods. Each of these methods has its own advantages and disadvantages. In this paper, we compared and evaluated the capability of two unsuperv...

in order to microfacies studies of the cretaceous deposits, a section called korkouh was selected in kerman province in central iran area. the korkouh is on the bidou formation with angular unconformity and underlain by paleogene conglomerates with an erosional surface. the studied section basically contains lime and dolomitic limestone with the thickness of 146 meters with new fossils such as ...

Ba salt of the Chil cotin Group (CG), sit u ated in the In te rior Pla teau phys io graphic re gion of cen tral Brit ish Co lum bia, cov ers an area of nearly 36 500 km. Its dis tri bu tion is en tirely within the re gion of BC that is most af fected by mountain pine bark beetle (MPBB) in fes ta tion (Fig 1). The CG is im me di ately un der lain by Pa leo zoic-Me so zoic base ment rocks with hi...

Over the years, there has been an ongoing struggle to relate well-log and seismic data due to the inherent bandwidth limitation of seismic data, the problem of seismic amplitudes, and the apparent inability to delineate and characterize the transitions that can be linked to and held responsible for major reflection events and their signatures. By shifting focus to a scale invariant sharpness ch...

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 new approach is presented for inverse modeling to reconstruct continuous features in space, such as channels, that exhibit sparseness in a complementary basis (e.g. a Fourier basis) using observations in spatial domain. Continuity in space is used to constrain the solution to be sparse in the discrete cosine transform (DCT) domain. The DCT is used to effectively reduce the dimension of the se...

Hereditary gingival enlargement also known as gingivitis or familial elephantiasis is a rare type of gingival enlargement. It appears as an isolated autosomal dominant disorder or maybe associated with other conditions. Oral manifestations may vary from minimal involvement of only tuberosity area and the buccal gingiva around the lower molars to a generalized enlargement inhibiting eruption of ...

The factors causing congenital heart disease, apart from the well known effects of rubella in the mother during the first three months of pregnancy, are in general obscure. The association of congenital heart disease with Multiple non-cardiac abnormalities may form the basis for an investigation }nto other aetiological factors. The combination of cardiac defects with mfantile hypercalcaemia is ...

From Oligocene to Recent times a series of tectomcally controlled coastal embayments fonned on the Pacific fore-arc side of the southern Central American island-arc system. Each of these basins shows characteristic stratal geometries and facies distributIOns reflecting the complex interaction of changes of sea level. volcaniclastic input. and tectonic activity (subsidence, uplift). Sequential s...