In the Ordos Basin, Chang 81, a Member of Yanchang Formation, features development braided river thin-bedded tight sandstones. These sandstones constitute one main production layers oil and gas in Formation within basin. This study integrates data from core samples, drilling, seismic information to identify 81 at Daijiaping, using method constrained correlation between waveform facies. approach...

electro-facies is a unit of the vertical sediments sequence on the wire-line logs that can be differentiated from the upper and lower units. for detection of the electro-facies interval in kangan and upper dalan formations in south pars gas field, wire-line log and core data analysis (wells a, b, c and d) were used. note, only core data analysis in well a were available. first, thin-sections st...

Palimpsests are large, circular, low-relief impact scars on Ganymede and Callisto. These structures were poorly understood based on Voyager-era analysis, but high-resolution Galileo images allow more detailed inspection. We analyze images of four Ganymedean palimpsests targeted by Galileo: Memphis and Buto Faculae, Epigeus, and Zakar. Ganymedean craters and Europan ring structures are used as t...

The aim of this research was to accurately measure the surface of the semi lunar articular surface of the pelvis (facies lunata acetabuli) and the variability of the acetabular geometry, as well as to determine the correlation between measured parameters. 30 macerated anatomical specimens of pelvic bones were measured. The radius and depth were measured in the classical way, while cartilaginous...

To improve the prediction of thin reservoirs with special geophysical responses, a geostatistical inversion technique is proposed based on an in-depth analysis theory inversion. This Markov chain Monte Carlo algorithm, to which we added contents facies-constrained. The feasibility and reliability results are demonstrated by sand bodies in braided river channel bars Xiazijie Oilfield Junggar Bas...

The occurrence of power law relationships in the spatial distribution of sedimentary lithotopes has been identified in both modern and ancient carbonate depositional bodies. In this study, facies patterns and their spatial relationships are investigated quantitatively in an Arabian Gulf shallow subtidal carbonate ramp setting, using a synergy of IKONOS satellite imagery and vessel-based acousti...

Trichoepithelioma is a benign tumor of follicular unit. It has been rarely described as the cause of leonine facies. We are presenting a classical case of multiple familial trichoepitheliomas (MFTs) with characteristic histopathological features leading to leonine facies.

Identification of specific environments of deposition represented by black shales has been a traditional puzzle for geologists. The present study was undertaken to see whether sedimentary structures, especially biogenic structures, could be used to subdivide the inclusive term "black shale facies." Because of the prevalence of infauna, modern marine muds are typically bioturbate; only where ani...

Introduction: Recent reexamination of the fan-shaped deposits on the NW flanks of the Tharsis Montes and Olympus Mons has revived earlier interpretations [e.g., 13] that these deposits could have a glacial origin. New spacecraft data and improved understanding of cold-base glacier behavior has led to the interpretation that these features are the depositional remains of cold-based tropical moun...

This paper presents for the first time a detailed study on information content of X-band single-pass interferometric spaceborne SAR data with respect to snow facies characterization. An approach for classifying different snow facies of the Greenland Ice Sheet by exploiting X-band TanDEM-X interferometric synthetic aperture radar acquisitions is firstly detailed. Large-scale mosaics of radar bac...