Part 1: Introduction

Francis P. Shepard, Neil F. Marshall, Patrick A. McLoughlin, Gary G. Sullivan

AAPG Special Volumes

... the rotation of the Savonius rotor using the reflection of a light source from a bright surface of the rotor. This light pulse signal is transmitted...

A Case for Brittle Deformation of the Basement During the Laramide Revolution in the Rocky Mountain Foreland Province

Vincent Matthews III

Rocky Mountain Association of Geologists

..., cordingly, e.g., ~f answer toquestion A were "horizontal forces'', the then that would requlre faults that flatten and a preponderance of low-angle faults...

A Pipette Method of Size Analysis for the Centifruge

Stephen W. Dana

Journal of Sedimentary Research (SEPM)

.... By definition a = w2R, where w is the angular velocity in radians and R is the distance of the particle from the axis of rotation. By definition w = 2N, where N...

GEOLOGY OF THE HEBBLE MINE, ST. CLAIR COUNTY, ALABAMA

Denny N. Bearce, Richard E. Carroll

Alabama Geological Society

... rotation of beds and faults, and then rotation of the beds (northwest limb) to horizontal about the horizontal hinge. Present and original attitudes...

Tectonic versus diagenetic origin of fractures in a naturally fractured carbonate reservoir analog (Nerthe anticline, southeastern France)

Arthur P. C. Lavenu, Juliette Lamarche, Arnaud Gallois, Bertrand D. M. Gauthier

AAPG Bulletin

... Paper 97382, 7 p.Gattacceca, J., A. Deino, R. Rizzo, D. S. Jones, B. Henry, B. Beaudoin, and F. Vadeboin, 2007, Miocene rotation of Sardinia: New...

Rock Mechanical Behavior at the Inch Scale in a Thinly Laminated Unconventional Formation

Smaine Zeroug, Bikash K. Sinha, Ting Lei, John Jeffers

Unconventional Resources Technology Conference (URTEC)

..., occurring in the limestone layers and reflecting rock compressive failure under a large deviatoric horizontal stress, are typically arrested...

“Factory Mode” Development of Fortín de Piedra Block, Gas Window

Pedro Biscayart, Matías Brolli, Josefina d’Hiriart, Diego García Acebal, Adrian Giachino, Sebastián Olmos, Neptalí Requena, Raúl Varela

AAPG Special Volumes

... rotation (completely vertical) and is quantified with the integration of the density log. The quantification of the minimum horizontal stress...

Evidence of different contractional styles along foredeep margins provided by Gilbert deltas: examples from Bowser Basin, British Columbia, Canada

Brian D. Ricketts, Carol A. Evenchick

CSPG Bulletin

... basin beyond. At one location, fault-block rotation resulted in oversteepening of foresets and internal discordances. Deposition was dominated by non...

Study of the Crooked Hole Problem: GEOLOGICAL NOTES

F. H. Lahee

AAPG Bulletin

... on the bit; speed of rotation; rate of circulation; ease of drilling; ease of running in and coming out with the drill stem; ease of setting...

Fault Seal Integrity in the Timor Sea Area: Prediction of Trap Failure Using Well-Constrained Stress Tensors and Fault Surfaces Interpreted from 3D Seismic

D. A. Castillo, D. J. Bishop, M. de Ruig

Indonesian Petroleum Association

... of the maximum horizontal principal stress in this area. The marked rotation in SHmax beginning in the Nancar Trough and continuing...

Influence of Tectonic Stress Regime on Fracture Porosity of Tight Carbonate Reservoirs, #42103 (2017).

Constantin-Laurian Ciuperca, Gregory Jackson, Bogdan-Mihai Niculescu, Abid Bhatti

Search and Discovery.com

.... The alignment of the major fault and the natural fractures, parallel to the minimum horizontal stress direction, suggests a compressional tectonic regime...

Characteristics of Sediments on Modern and Ancient Continental Slopes

Harry E. Cook, Michael E. Field, James V. Gardner

AAPG Special Volumes

... rotation of the slumped body. Slides can exhibit varied amounts of internal deformation. Some slides show purely elastic behavior, the Fig. 5. Continental...

Tempestite Deposition

Paul M. Myrow , John B. Southard

Journal of Sedimentary Research (SEPM)

... storm flows. Strong storm winds produce waves and surface currents. The effect of the Earth's rotation produces Ekman veering: the net transport...

On Illogical Interpretation of Geological Structures in the Rocky Mountain Foreland Province: Discussion

Vince Matthews

Rocky Mountain Association of Geologists

...’t seem to fit neatly with purely horizontal compression. When I later learned the principles of the forced fold model, they seemed to provide...

Failure of cap-rock seals as determined from mechanical stratigraphy, stress history, and tensile-failure analysis of exhumed analogs

E. S. Petrie, J. P. Evans, and S. J. Bauer

AAPG Bulletin

..., JMicroVision: Image analysis toolbox for measuring and quantifying components of high-definition images, Version 1.2.7. Schamel, S., 2006, Shale gas...

Geomechanical insights on the importance of mechanical stratigraphy to hydraulic fracture containment

Kevin J. Smart, David A. Ferrill, and Alan P. Morris

AAPG Bulletin

...., 2018; Boersma et al., 2020). The code uses a Lagrangian formulation that accurately handles large-magnitude strain and rotation and complex contacts...

Zircon geochronology and paleomagnetism of an Archean harzburgite intrusion, eastern Bighorn Mountains, Wyoming

Alexandra Wallenberg, Michelle Dafov, David Malone, John Craddock

Rocky Mountain Association of Geologists

... magnetic vectors is best explained by a 90° clockwise rotation along a horizontal axis of rotation by Eocene motion on the Laramide Clear Creek thrust...

Structure and geomorphology of the Duchesne graben, Uinta basin, Utah, and its enhancement of a hydrocarbon reservoir

Alicia Groeger, Ronald Bruhn

AAPG Bulletin

... and Wasatch formations of the Uinta basin, Utah: targets for horizontal drilling, in T. D. Fouch, V. F. Nuccio, and T. C. Chidsey, eds., Hydrocarbon...

Petrology and Geochemistry of the Duzel (Ordovician) and Gazelle (Silurian) Formations, Northern California

Kent C. Condie, Sathian Snansieng

Journal of Sedimentary Research (SEPM)

... grains (35-50 percent) (hereafter referred to collectively as silica components) in a matrix of quartz, sericite, chlorite, and carbonate, the last...

Plate Tectonics and the Origin of the Gulf Coast Basin

Robert Beall

GCAGS Transactions

... faults and through clockwise rotation around the Adirondacks. Sales (1968) has shown that variations in the strength of crustal segments in the western...

Evolution of Precambrian Massif of Western Newfoundland: Chapter 46: Northwestern Border of the Orogenic Belt

Paul M. Clifford

AAPG Special Volumes

... link them with rocks of nearby Labrador. Block motions, both vertical and horizontal, are implied by variations in the nature and position...

Geophysical Illusions of Continental Drift: A DISCUSSION

Robert S. Dietz , John C. Holden

AAPG Bulletin

... the continents are embedded in a mosaic of even larger rigid lithospheric plates which drift in relative rotation on the earth's spherical surface. The plates...

AAPG Pacific Section Meeting Universal City, California April 9–11, 2001, - Abstracts, #90904 (2001).

Search and Discovery.com

Evolution of the Karamea Basin, West Coast, South Island, New Zealand

H. McQuillan

Petroleum Exploration Society of Australia (PESA)

... sediments in the onshore hinterland to the Karamea Basin are found in a westerly dipping sheet of greywacke breccia which includes granite components...

The Role of Mudstone Baffles In Controlling Fluid Pathways In A Fluvial Sandstone: A Study In the Pennsylvanian–Permian Fountain Formation, Northern Colorado, U.S.A.

Ian M. Hogan, Sally J. Sutton

Journal of Sedimentary Research (SEPM)

... as other Paleozoic and Mesozoic formations. The Laramide Orogeny also resulted in the rotation of Paleozoic strata derived from the northwestern...