Chamosite Oolites in the Devonian of Pennsylvania

Richard A. Sheppard, Ralph E. Hunter

Journal of Sedimentary Research (SEPM)

... as oolites by their nuclei and concentric structure and by their spherical form where protected from flattening after deposition. Broken oolites serving...

Theory of Sieving: NOTES

Basanta K. Sahu

Journal of Sedimentary Research (SEPM)

... be conveniently classified into two groups; ellipsoidal (spherical) grains (Case I) and tabular grains (Case II). The tabular grains are further...

Quiet Water Oolites from the Ordovician of Minnesota: NOTES

Richard A. Davis, Jr.

Journal of Sedimentary Research (SEPM)

... in which nuclei are not recognizable are mostly well sorted and spherical. Most recognizable nuclei are quartz grains, but some are rounded intraclasts...

Modern Armored Mud Balls in an Urban Environment

Richard W. Ojakangas, Joyce A. Thompson

Journal of Sedimentary Research (SEPM)

... and armored. Spherical, subspherical, cylindrical, and elliptical shapes were observed. BELL, H. S., 1940, Armored mud balls: Their origin, properties...

Abstract: An Azimuthal-AVO-Compliant 3D Land Seismic Processing Flow; #90171 (2013)

David Gray, Darren Schmidt, Nirupama Nagarajappa, Charles Ursenbach, and Jon Downton

Search and Discovery.com

...., 2001). 2. Azimuthal spherical divergence correction (Xu and Tsvankin, 2006). 3. 5D interpolation (Trad et al., 2005). 4. Migration of Common Offset...

Abstract: Seismic Dispersion in Extra-Heavy Oil Saturated Rock; #90172 (2014)

Todd D. Bown, Douglas R. Schmitt

Search and Discovery.com

... model, determined for spherical pores (Berryman, 1980), is expressed by a system of two equations for solving effective K* and shear μ* moduli...

The Curious Case of Hydrocarbon-Expulsion Fractures: Genesis and Impact on the Bakken Shales; #80398 (2014)

Mohammed Duhailan, Steve Sonnenberg

Search and Discovery.com

... are naturally fractured and can be interpreted on resistivity-curve separation. The Three Forks and Middle Bakken pressure-transient behaviors show spherical...

Application of Electrical Resistivity Measurements to Problem of Fluid Flow in Porous Media

M. R. J. Wyllie , M. B. Spangler

AAPG Bulletin

... having a porosity, ^phgr, is EQUATION (12) Where x=2 if the particles are spheres and x is less than 2 when the particles are not spherical...

Glimpses of Our Southwestern National Monuments

N. N. Dodge

Tulsa Geological Society

... before Columbus dreamed of a spherical world. Some of the finest of these remains are guarded today by the custodians of the 14 archeological monuments...

Particle Size Measurement of Diatoms with Inference of Their Properties: Comparison of Three Techniques

Robert S. Pugh, I. Nick McCave

Journal of Sedimentary Research (SEPM)

... these inferred sizes (all expressed as quartz-equivalent spherical diameters) have implications for the physical properties of diatom tests. Earlier work...

ABSTRACT: Fluorescence spectroscopy of sedimentary organic matter via Confocal Laser Scanning Microscopy

Paul C. Hackley, Aaron M. Jubb, Robert C. Burruss

The Society for Organic Petrology (TSOP)

... spherical morphology and, in optical microscopy, this burial deformation results in generally parallel extinction (strain-influenced) and positive...

Practical Applications of Amplitude-vs-Offset Analysis in Expanded Yegua Exploration

James L. Allen

Houston Geological Society

... Near offset vs Far offset Maintaining true amplitude at all offsets Compensation for spherical divergence NMO Stretch Multiples "Good...

Evaluating Gas Content of Deep Gas-Shale Core Samples: The Lost Gas Problem

Alton Brown

West Texas Geological Society

... as an alternate approach for estimating lost gas. The reference model to be fit is dimensionless fractional gas evolved from a spherical sample...

A Model for the Nonlinear Creep Behavior of Oil Shale

Ken P. Chong, George F. Dana, Jui-Lin Chen

Circum Pacific Council Publications

... of the material of the same horizon as the materials to be tested for creep. For creep tests, specimens were placed between the spherical seat...

Abstract: Session 2: Regional Tectonics and Basin Perspectives: Southeast Asia Tectonics, Palaeogeography and Palaeoclimate

Robert J Morley, Jon Teasdale, Harsanti P. Morley

Southeast Asia Petroleum Exploration Society (SEAPEX)

... a rigorously constrained, spherical global reference frame coupled with a spatially consistent interpretation of basement terranes and regional...

Artificial Oolites from Spray from Ammonia-cooling Tower of Ice Plant, Seymour, Texas

Augusta Hasslock Kemp

Journal of Sedimentary Research (SEPM)

... of the tower, due to the prevailing southerly winds. DESCRIPTION The oolites are only approximately spherical. Associated with them are small, irregular...

Petrographic Microscope Slides of Detrital Mineral Grains

Paul Herbert, Jr.

Journal of Sedimentary Research (SEPM)

... dried. Caution must be used when placing the cover glass over highly spherical grains such as the St. Peter quartzes and tourmalines, or the glacial...

Abstract: The Distribution of Oil and Natural Gas Deposits in the Earth’s Crust in Relation to Pt, Ni, and Cr Mineralization Along Great Circles

N. Thamm, Robert A. Hodgson

Utah Geological Association

... and two 45 degree angles albeit distorted (enlarged) due to the spherical nature of the feature. These angles (including their distortion) are well...

ABSTRACT: Optical Photothermal Infrared Spectroscopy Reveals Nanoscale Chemical Heterogeneity in Tasmanites Driven by Burial Stress

Aaron M. Jubb, Paul C. Hackley, M. Rebecca Stokes, Ryan J. McAleer

The Society for Organic Petrology (TSOP)

... on the chemical structure of SOM as these algae are roughly spherical prior to deposition but are flattened during burial and compaction into discoid...

An Occurence of Artificial Oolites: NOTES

J. B. Reark

Journal of Sedimentary Research (SEPM)

... spherical, or nearly so, because of the constant rotation of the spiractor. There is no information available as to the rate of formation...

Abstract: Ancient Floodplain Deposits within the Jura-Cretaceous Alluvial Complex near Bandar Muadzam Shah, Pahang: Facies Characteristics and Climatic Significance

Abdul Hadi Abd. Rahman

Geological Society of Malaysia (GSM)

... of interbedded mudstone. No primary sedimentary structures is evident; the most conspicuous feature here are the highly spherical "dinasour egg...

A Sound Exposure Level (SEL) Study for a 3D Seismic Survey off the WA Coastline, Browse Basin

Andrew S. Long, Jens F. Wisløff, Jaafar Ali, Averrouz Mostavan, David Hedgeland, Alec J. Duncan, Amos L. Maggi, Jeremy Colman

Petroleum Exploration Society of Australia (PESA)

... was required to assess standard value (1 .0) equals spherical spreading cetacean' species such as the humpback wha le. both the likely received...

ABSTRACT: Framework and Sedimentation Patterns of Tullock Member of Fort Union Formation, East-Central Powder River Basin, Montana and Wyoming, by Janet L. Brown; #91040 (2010)

Search and Discovery.com

Rock Texture: An Important Factor For Clast Shape Studies: NOTES

Lon D. Drake

Journal of Sedimentary Research (SEPM)

... that texturally anisotropic rocks will fracture into less spherical fragments than isotropic rocks, so these two groups are considered separately. For field...

Relationship of Velocity Defined Accuracy to Phi Defined Accuracy in Settling Tubes: METHOD PAPER

C. L. McCormick, Eric S. Posmentier

Journal of Sedimentary Research (SEPM)

..., V. The two expressions that he gave were empirically derived equations for spherical grains falling at terminal velocity. His relationship between...