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The AAPG/Datapages Combined Publications Database

Showing 33,896 Results. Searched 191,995 documents.

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Grain Fabric in Hummocky Cross-Stratified Storm Beds: Genetic Implications

R. J. Cheel

Journal of Sedimentary Research (SEPM)

...-laminated interval of an HCS storm bed, grain imbrication angles vary about a mean of approximately 13° from the horizontal, dipping into the paleoflow...

1991

Effects of subsidiary faults on the geometric construction of listric normal fault systems (Geologic Note)

Tingguang Song, Peter A. Cawood

AAPG Bulletin

... on the master fault during the bed-fault construction. The extension on subsidiary faults is supposed to be transferred into the main fault, along...

2001

BASEMENT WEDGES, BACK-THRUSTING AND THIN-SKINNED DEFORMATION IN THE NORTHWEST BEARTOOTH MOUNTAINS NEAR LIVINGSTON, MONTANA

E.A. Robbins, E.A. Erslev

Montana Geological Society

... 1986 111 123 The exposed faults on the northeastern flank of the Beartooth Mountains display a reversal of vergence, with southwest-dipping...

1986

A Unique Mass Flow Marker Bed in a Miocene Streamflow Molasse Sequence, Switzerland

Heinz M. Burgisser

CSPG Special Publications

... protruding base of NNW-dipping mass flow rudite of the marker bed Figure 13. Erosional contact between the marker bed (mass flow facies...

1984

Backset Bedding in Turbidites: A Further Example from the Cloridorme Formation (Middle Ordovician), Gaspe, Quebec

Keith Skipper , S. B. Bhattacharjee

Journal of Sedimentary Research (SEPM)

... 1978 Vol. 48 No. 1. (March), "Backset bedding" was found in a thick (144 cm) turbidite bed in the Cloridorme Formation, Gaspe Peninsula, Quebec...

1978

Coarse-Grained Storm Beds of the Upper Cretaceous Chungo Member (Wapiabi Formation), Southern Alberta, Canada

Richard J. Cheel, Dale A. Leckie

Journal of Sedimentary Research (SEPM)

...- and extraformational clasts; 2) a cross-stratified conglomeratic division with cross-strata dipping predominantly onshore and capped by symmetrical coarse-grained...

1992

Backset Bedding Developed in Shooting Flow in Laboratory Experiments: NOTES

Alan V. Jopling , Everett V. Richardson

Journal of Sedimentary Research (SEPM)

... direction. Backset bedding was also produced in experiments where antidune and chute and pool bed configurations were formed in a recirculating flume...

1966

PETROGRAPHIC CHARACTERISTICS AND DEPOSITIONAL ENVIRONMENT OF THE PALEOCENE 61-M-THICK SUBBITUMINOUS BIG GEORGE COAL BED, POWDER RIVER BASIN, WYOMING.

E.C.T. Chao, J.A. Minkin, J.M. Back, F.W. Pierce, U.S. Geological Survey, Reston, Virginia U.S. Geological Survey, Denver, Colorado

North Dakota Geological Society

...PETROGRAPHIC CHARACTERISTICS AND DEPOSITIONAL ENVIRONMENT OF THE PALEOCENE 61-M-THICK SUBBITUMINOUS BIG GEORGE COAL BED, POWDER RIVER...

1984

A Graphical Dip Domain Technique For Projecting Large Growth Faults To Depth Using Imaged Hanging-Wall Structure

R. E. Bischke and D. J. Tearpock

GCAGS Transactions

..., there is a causative relationship between the shape of the fault and the shape of the fold. This relationship allows industry to predict fault shape from rollover...

1999

Reported Late Tertiary Thrusting in Northeastern Nevada

John C. Hazzard , William R. Moran

AAPG Bulletin

... and 34, T. 42 N., R. 66 E., the Paleozoic-Humboldt contact is well exposed. For approximately 3/4 mile along the range front, steeply west-dipping...

1952

Chert "Dike" Structures in Senonian Chert Beds, Southern Negev, Israel

Gideon Steinitz

Journal of Sedimentary Research (SEPM)

...) In a chert bed below the main sandstone body (Sandstone Member). 2) On bedding planes of the hard laminated cherts in the Laminated and Irregular Chert...

1970

Complex Pre-Lewis Thrust Deformation, Southeastern Glacier Park, Montana

An Yin

Rocky Mountain Association of Geologists

...-parallel faulting, and (3) top-tothe-east simple shear that rotated primary, east-dipping contraction faults to apparent west-dipping normal faults...

1991

Morphology, Internal Structure, and Reversal of Asymmetry of Large Subtidal Dunes in the Entrance to Gironde Estuary (France)

Serge Berne , Patrice Castaing , Eliane le Drezen , Gilles Lericolais

Journal of Sedimentary Research (SEPM)

... the lee side of a small dune usually appears as a branch of a hyperbola dipping in the direction of migration of the bed form (e.g., Fig. 11...

1993

Extended Abstract: Relationship between Anticlinal Folding and the Evolution of Mechanical Stratigraphy, Rock Mechanics Properties and Reservoir Quality in the Tensleep Sandstone at Alcova Reservoir, Central Wyoming, USA

Peter Hennings, Anita É. Csoma, Chris Zahm

Houston Geological Society Bulletin

...Extended Abstract: Relationship between Anticlinal Folding and the Evolution of Mechanical Stratigraphy, Rock Mechanics Properties and Reservoir...

2015

Abstract: Breakdown of the Gutenberg-Richter Relation in Layered Media; #90224 (2015)

David W. Eaton

Search and Discovery.com

... magnitude statistics of microseismic events that occur on steeply dipping to vertical fracture surfaces in horizontally layered media. Termination...

2015

Microseismic Event Location Trends and Their Relationship with Sequence Stratigraphy, #41992 (2017).

Jing Zhan, Roger Slatt

Search and Discovery.com

... preferentially, develop along the bed dipping trend and SHmax (maximum horizontal stress) direction of N78°E. About 60 percent of events or accumulated magnitude...

2017

En Echelon Geometry and Two-Dimensional Model of the Triangle Zone, Grease Creek Syncline Area, Alberta

Gregory S. Soule,, Deborah A. Spratt

CSPG Bulletin

... in the basal Upper Brazeau Formation (Upper Cretaceous clastic unit). The surface expression of the triangle zone is an antiform, with an east-dipping thrust...

1996

Dual Classification of Faults: GEOLOGICAL NOTES

Mason L. Hill

AAPG Bulletin

..., intersection of dike and bed) is displaced and then the actual relative movement (net slip) can be calculated. The absolute movement of either bl ck can...

1959

Chutes and Lobes: Newly Identified Elements of Braiding in Shallow Gravelly Streams

John B. Southard, Norman D. Smith, Roger A. Kuhnle

CSPG Special Publications

... In-channel features here called chutes and lobes are dominant elements of braiding in the small gravel-bed outwash plain of Hilda Glacier, western...

1984

Antidunes and Traction-Carpet Deposits in Deep-Water Channel Sandstones, Cretaceous, British Columbia, Canada

Koji Yagishita

Journal of Sedimentary Research (SEPM)

... of graded beds shows a lens-shaped channel geometry. Wavy bed forms similar in shape to the hummock-and-swale topography that is thought to form hummocky...

1994

THE TYLER FORMATION AND BASEMENT FAULTING

G. G. COOPER

Montana Geological Society

..., Montana. A.A.P.G. Bulletin, Volume 20, Number 9, pages 1161-1188, 1936. The purpose of this paper is to suggest a relationship...

1956

Control of mechanical stratigraphy on bed-restricted jointing and normal faulting: Eagle Ford Formation, south-central Texas

David A. Ferrill, Ronald N. McGinnis, Alan P. Morris, Kevin J. Smart, Zachary T. Sickmann, Michael Bentz, Daniel Lehrmann, and Mark A. Evans

AAPG Bulletin

...Control of mechanical stratigraphy on bed-restricted jointing and normal faulting: Eagle Ford Formation, south-central Texas David A. Ferrill, Ronald...

2014

Delta-front hyperpycnal bed geometry and implications for reservoir modeling: Cretaceous Panther Tongue delta, Book Cliffs, Utah

Cornel Olariu, Ronald J. Steel, Andrew L. Petter

AAPG Bulletin

... observations on bed dip and rate of bed thickness change along both dip and strike directions indicate a basinward gently dipping delta front (less than...

2010

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