An improved high-precision Jacob's staff with laser sighting and topographic capabilities for the high-resolution stratigrapher

Qiang Xu, Yahui Yue

Journal of Sedimentary Research (SEPM)

.... 2017). This method is quite effective for specific outcrops with horizontal beds in a vertical section or dipping beds on a dip-parallel surface...

Wheeler Gorge Turbidite-Conglomerate Series, California; Inverse Grading

Richard V. Fisher, James M. Mattinson

Journal of Sedimentary Research (SEPM)

....) The coarse-grained beds are composed essentially of three major clastic components: (1) very well rounded granule to cobble-sized lithic fragments consisting...

Influence of Basement Structures on Stress Regimes in the Surat and Bowen Basins, Southeast Queensland

Samuel Brooke-Barnett, Thomas Flottmann, Pijush K. Paul, Seth Busetti, Peter Hennings, Ray Reid

Petroleum Exploration Society of Australia (PESA)

... and Burunga Faults. This increase is accompanied by a maximum horizontal stress rotation to the north along the major faults. East of the Taroom Trough...

Oil-Source Rock Correlations, Alaskan North Slope: SOURCE ROCK EVALUATION INCLUDING ISOTOPES AND BIOMARKERS

J. A. Williams, D. L. Dolcater, R. K. Olson

AAPG Special Volumes

... pristane/phytane, carbon isotope ratio, optical rotation, and vanadium-nickel analysis. Light ends analysis, infrared spectroscopy, aromatic compound...

Investigation of Lateral Fracture Complexity to Mitigate Frac Hits During Interwell Fracturing

Yanli Pei, Jiacheng Wang, Wei Yu, Kamy Sepehrnoori

Unconventional Resources Technology Conference (URTEC)

..., 90 degrees rotation of horizontal principal stresses) occurs over the natural fracture tip. Meanwhile, the area over which Shmin is significantly...

Polar Wandering and Continental Drift an Evalvation of Recent Evidence

Ernst R. Deutsch

Special Publications of SEPM

... of con tinental drift which may be the result ant of three components rotation of the land about the sampling location point along lines of latitude...

Analysis of Compaction Effects on Coal Fracture Patterns, Upper Cretaceous Rock Springs Formation, Southwestern Wyoming

Stephen E. Laubach, Daniel D. Schultz-Ela, Roger Tyler

Rocky Mountain Association of Geologists

... result from post-cleat development movements that are purely tectonic, the angle between faults and compaction fabric is 90°, despite rotation...

Character and Extent of Basin-Range Faultin, Western Montana and East-Central Idaho

Mitchell W. Reynolds

Rocky Mountain Association of Geologists

..." (Mertie and others, 1951). Clearly, the relative downdrop of the valley block with attendant structural rotation of the Tertiary beds requires crustal...

Unconventional Reservoir Microstructural Analysis Using SEM and Machine Learning

Amanda S. Knaup, Jeremy D. Jernigen, Mark E. Curtis, John W. Sholeen, John J. Borer IV, Carl H. Sondergeld, Chandra S. Rai

Unconventional Resources Technology Conference (URTEC)

... include random application of translations and transformations: rotation and shearing in the horizontal and vertical direction from -3° to 3°, translation...

WHERE DID THOSE HORIZONTAL LEGS GO?

ROBERT J. MUNDAY

Williston Basin Symposium

...WHERE DID THOSE HORIZONTAL LEGS GO? ROBERT J. MUNDAY 1998 104 105 Improved personal computer technology is allowing us to achieve the elusive goal...

Syndeformational Magnetization in the Ordovician Bigfork Chert at Black Knob Ridge, Western Ouachita Mountains, Southern Oklahoma: (Part I)

Tony K. Hillegeist

Oklahoma City Geological Society

... inclinations in the rocks at Black Knob Ridge are interpreted to be primarily the results of rotation around a horizontal axis as a result of thrusting...

Wrench Faulting and Rocky Mountain Tectonics

Donald S. Stone

Earth Science Bulletin (WGA)

... characterized by Important lateral slip components. They form under regional compression when the greatest and least principal pressures (axes) lie...

The Vicksburg of South Texas: A Shelf-Delta System with an Attitude

Tony Whitbread, Todd Nicholson, Bill Owens

GCAGS Transactions

... on the listric fault plane was reduced as the slump rotated to a horizontal position. When rotation was complete, all the curvature from the base of the slump...

ABSTRACT: Paleomagnetic Evidence from Land-Based and ODP Cores for Clockwise Rotation and Northward Translation of the Philippine Sea Plate, by S.M. Cisowski, M. Fuller, Roger B. Haston, M. Koyama; #90097 (1990).

Search and Discovery.com

Magnetic Stratigraphy and Tectonic Rotation of the Upper Paleocene Pattiway Formation, Caliente Range, San Luis Obispo County, California

Donald R. Prothero, Robert B. Vacca

Pacific Section SEPM

...Magnetic Stratigraphy and Tectonic Rotation of the Upper Paleocene Pattiway Formation, Caliente Range, San Luis Obispo County, California Donald R...

Triassic Paleomagnetism of Northern South America

William D. MacDonald , Neil D. Opdyke

AAPG Bulletin

... America have a minimum misfit for a rotation of 57.6° about a pole at 42.5°N, 29.9°W (500 fm isobath). Triassic paleomagnetic poles for Africa, when...

Optimization of well Placement and Drilling Time by the Use of Azimuthal Measurements in Directional Bottom Hole Assemblies

G. Whiteley, A. Douglas, C. Brown

Indonesian Petroleum Association

... tool (instrumented motor) resulted in considerable efficiency gains while drilling the Widuri B-22 horizontal well. While the quality of the formation...

Dolomitization of Mississippian Carbonates in the Shell Waterton Gas Field, Southwestern Alberta: Insights from Paleomagnetism, Petrology and Geochemistry

Michael T. Lewchuk,, Ihsan S. Al-Aasm,, David T.A. Symons, Kevin P. Gillen

CSPG Bulletin

...° and 300°C (10 to 50 mT) and synde-positional Paleozoic directions above 300°C after correction for a minor clockwise vertical axis rotation on the thrust...

Normal Fault Structures and Others

Bailey Willis

AAPG Bulletin

... the assumed conditions of excessive load horizontal stresses are usually set up and they cause a rotation of the shearing planes toward the vertical...

Fault Techniques: Analyzing Normal Faults: Unit 21: Techniques

Martin P. A. Jackson, William E. Galloway

AAPG Special Volumes

... accompanied by rotation of beds or fault plane. Nonrotational faults produce extension without rotation of beds or fault plane (table 1). Nonrotational...

PALEOMAGNETIC EVIDENCE CONCERNING POLAR WANDERING AND CONTINENTAL DRIFT

K. M. Creer

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... in which the lava cooled as well as its direction (relative to present geographical north and present horizontal). However, there are difficulties...

Sedimentological Signature of a Deformable Bed Preserved Beneath an Ice Stream in a Late Pleistocene Glacial Sequence, Ross Sea, Antarctica

Ellen A. Cowan, Poul Christoffersen, Ross D. Powell

Journal of Sedimentary Research (SEPM)

... thickens, decreasing the intergranular effective stress and inducing rotation of the angular till aggregates. An alternative model calls for basal...

An Automated Grain-shape Classifier

William H. Glezen, John C. Ludwick

Journal of Sedimentary Research (SEPM)

... a particle rolls on a horizontal surface after descending an inclined surface. An inclined turntable has been used in the shape-classification of glass...

Cretaceous to Neogene Structural History of the Tok Valley Region, Eastern Interior Alaska - Abstract

J. E. Andrew, L. K. Freeman, R. J. Newberry, D. J. Szumigala, M. B. Werdon

Alaska Geological Society

... orientations. There are four kinematic subgroups: (A) NNE-SSW oriented sub-horizontal P-axes with subhorizontal T-axes; (B) N-S oriented sub-horizontal P...

Techniques of Palinspastic Investigation for Predicting Deep Structure Under Conditions of Disharmonic Folding

Yu. A. Sterlenko, T. S. Sidorovich

Petroleum Geology: A Digest of Russian Literature

... on transverse profiles. Profiles were chosen to include as many wells as possible. The direction of the resultant horizontal component was determined on each...