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Constraining self-organizing map facies analysis with stratigraphy: An approach to increase the credibility in automatic seismic facies classification

, 2017
Pattern recognition-based seismic facies analysis techniques are commonly used in modern quantitative seismic interpretation. However, interpreters often treat techniques such as artificial neural networks and self-organizing maps (SOMs) as a “black box”
Tao Zhao, Fangyu Li, K. Marfurt
semanticscholar   +1 more source

Facies Diagnosis and Facies Models

1982
Microfacies types document differences in the kind of and significance of sedimentological (affecting sediment) and biological (affecting organisms) environmental factors. Although during the genesis of facies units there is an interplay of several factors, some environmental factors — especially in marine areas — seem to be of major importance.
openaire   +2 more sources

A comparison of classification techniques for seismic facies recognition

, 2015
During the past decade, the size of 3D seismic data volumes and the number of seismic attributes have increased to the extent that it is difficult, if not impossible, for interpreters to examine every seismic line and time slice. To address this problem,
Tao Zhao   +3 more
semanticscholar   +1 more source

Clastic facies models and facies analysis

Geological Society, London, Special Publications, 1985
Summary The term facies is used either descriptively, for a certain volume of sediment, or interpretatively for the inferred depositional environment of that sediment. Facies models are intellectual aids to the understanding of sedimentary environments and the origin of ancient sedimentary rocks.
openaire   +2 more sources

Pre-salt microbialites from the Campos Basin (offshore Brazil): image log facies, facies model and cyclicity in lacustrine carbonates

, 2015
This study uses a borehole image log, supported by limited sidewall-core samples, and conventional wireline logs to erect facies and stratigraphic models for the Aptian pre-salt microbial carbonates (Macabu Formation (Fm)) of the southern Campos Basin ...
M. C. Muniz, D. Bosence
semanticscholar   +1 more source

The elfin facies syndrome

Oral Surgery, Oral Medicine, Oral Pathology, 1975
The elfin facies syndrome is characterized by idiopathic infantile hypercalcemia; mental retardation; cardiovascular anomalies, usually supravalvular aortic stenosis and peripheral pulmonary artery stenosis; a peculiar elfin facies and oral anomalies, primarily enamel hypoplasia and oligodontia.
Elizabeth S. Barr, John R. Kelly
openaire   +2 more sources

Chapter 13 Contourite Facies and the Facies Model

2008
Publisher Summary This chapter reviews the historical context and describes the different contourite facies recognized. The contourite facies models are outlined and the interpretation of contourite sequences is discussed. Some hybrid contourite facies are considered and criteria for the distinction between contourites and associated facies in deep ...
Dorrik A. V. Stow, Jean-Claude Faugères
openaire   +2 more sources

Amniotic Band Facies

Journal of Craniofacial Surgery, 1998
Craniofacial deformities of 14 patients with amniotic band syndrome at one institution were reviewed for morphologic similarities. In addition to associated cleft lip and palate, vertical and oblique facial clefts, which were not associated with embryologic lines of fusion, were seen.
Barry L. Eppley   +4 more
openaire   +3 more sources

The effect of TiO2 and Fe2O3 on metapelitic assemblages at greenschist and amphibolite facies conditions: mineral equilibria calculations in the system K2O–FeO–MgO–Al2O3–SiO2–H2O–TiO2–Fe2O3

, 2000
Mineral equilibria calculations in the system K2O–FeO–MgO–Al2O3–SiO2–H2O–TiO2–Fe2O3 (KFMASHTO) using thermocalc and its internally consistent thermodynamic dataset constrain the effect of TiO2 and Fe2O3 on greenschist and amphibolite facies mineral ...
White, Powell, Holland, Worley
semanticscholar   +1 more source

Concepts of Facies [PDF]

open access: possibleAAPG Bulletin, 1958
Stratigraphic facies was recognized, defined, and named by Gressly in 1838. Before the end of the nineteenth century the concept of facies became firmly established, through the works of Mojsisovics, Renevier, and Walther, as referring to the sum of lithologic and paleontologic characteristics of a sedimentary rock from which its origin and the ...
openaire   +1 more source

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