Centrifuge Simulations of the Interaction Between Folding,Faulting and Diapirism During Regional Extension

Search and Discovery.com

... to the diapir trunk beneath the overhanging “tongue” of mushroom-shaped diapirs and tight to isoclinal upright to inclined synforms form between diapirs. Open...

Topical Tropical Non-Marine Deep Water Deltaic Charge Systems in SE Asia. A Model to Explain Why Some Are Oily and Some Are Not

Ian Longley

Indonesian Petroleum Association

... and/or turbidites have been proposed in the literature to explain how the terrestrial source material was transported into deep water. Equally intriguing are recent...

Formation of Reactivation Surfaces Within Superimposed Deltas and Bedforms

Peter J. McCabe , Colin M. Jones

Journal of Sedimentary Research (SEPM)

... subsequent burial by the next ripple produces an inclined erosion surface similar in form to many described reactivation surfaces. In natural environments...

Structural Patterns of the Pacific Floor Offshore of Peninsular California: Chapter 7: Part III. Regional Geophysics and Geology

Peter Lonsdale

AAPG Special Volumes

... into a pattern in which even small-offset fracture zones are orthogonal to the magnetic stripes. However, some magnetic lineations within the Pioneer survey off...

Chapter One: Introduction to AAPG Memoir 42/SEG Investigations in Geophysics, No. 9, 7th Ed.

Alistair R. Brown

AAPG Special Volumes

... permits three-dimensional processing of the data as a volume. The volume concept is equally important to the seismic interpreter. With 3-D data...

Unusual Shoreface Sedimentology in the Upper Jurassic of the Boulonnais, Northern France

P.B. Wignall , O.E. Sutcliffe , J. Clemson , E. Young

Journal of Sedimentary Research (SEPM)

... of wave propagation--usually orthogonal or oblique to the shoreline (Clifton et al. 1971; Clifton 1976). In the uppermost shoreface and the foreshore...

Core Orientation from Non-Oriented Core: A Tutorial

D. C. Carter

Indonesian Petroleum Association

... is equally applicable to use of dip-meter, borehole image or magnetic field vector data. For instances where dip-meter or borehole image data are used...

Penecontemporaneous Downdip Slump Structures in Middle Ordovician Limestone, Harrisonburg, Virginia: GEOLOGICAL NOTES

W. D. Lowry , B. N. Cooper

AAPG Bulletin

..., and an equally thick section overlies the Beekmantown Dolomite in the Broadway syncline, adjace t on the northwest. Brent, W. B., 1960, Geology...

Origin of Tepees in Upper Permian Shelf Carbonate Rocks of Guadalupe Mountains, New Mexico

Denys B. Smith

AAPG Bulletin

... concerning these tepees are equally applicable to those in older rocks of the Artesia Group. Field work was carried out mainly in 1970, when the writer...

Sand-injection Structures in Deep-water Sandstones from the Ty Formation (Paleocene), Sleipner st Field, Norwegian North Sea

Nicholas Satur, Andrew Hurst

AAPG Special Volumes

... in the well. The data show vertical pressure communication in the well, with all reservoir zones equally depleted by production. Blue arrows locating...

SPATIAL AND TEMPORAL SIGNIFICANCE OF PROCESS ICHNOLOGY DATA FROM SILTY-MUDSTONE BEDS OF INCLINED HETEROLITHIC STRATIFICATION, LOWER CRETACEOUS MCMURRAY FORMATION, NE ALBERTA, CANADA

ERIC R. TIMMER, MURRAY K. GINGRAS, JOHN-PAUL ZONNEVELD

PALAIOS

...SPATIAL AND TEMPORAL SIGNIFICANCE OF PROCESS ICHNOLOGY DATA FROM SILTY-MUDSTONE BEDS OF INCLINED HETEROLITHIC STRATIFICATION, LOWER CRETACEOUS...

The Process of Sand Injection: Internal Structures and Relationships with Host Strata (Yellowbank Creek Injectite Complex, California, U.S.A.)

Anthony Scott, Mario Vigorito, Andrew Hurst

Journal of Sedimentary Research (SEPM)

... (IS) shows inclined banding. These bands are 0.15–0.2 m thick and progressively diverge from the injection axis until parallel with the host mudstone...

Barform deposits of the Carolyn Shoemaker formation, Gale crater, Mars

Benjamin T. Cardenas,, John P. Grotzinger, Michael P. Lamb, Kevin W. Lewis, Christopher M. Fedo, Alexander B. Bryk, William E. Dietrich, Nathan Stein, Madison Turner, Gwénaël Caravaca

Journal of Sedimentary Research (SEPM)

..., and linearized (projected to a linear CAHV camera model, Yakimovsky and Cunningham (1978)). Linearization results in epipolar-aligned and equally scaled...

The Cuyama Strike-Slip Basin, California, U.S.A.: An Exemplar of Contrasting Syntectonic and Post-Tectonic Strata

Bryce Hoppie, Robert E. Garrison

Journal of Sedimentary Research (SEPM)

... little depositional asymmetry. Minor erosion is distributed equally among regressive and transgressive relative sea-level changes. Asynchronous changes...

STRUCTURAL TRENDS IN THE BEARTOOTH MOUNTAINS, MONTANA AND WYOMING

EDGAR WINSTON SPENCER

Montana Geological Society

... areas equally independent of fault zones may show great variations in spacing, length, and number of trends. Only the number...

Types of Channel-Fills Interpreted from Dipmeter Logs in the McMurray Formation, Northeast Alberta

W. Muwais, D.G. Smith

CSPG Bulletin

..., McGraw-Hill, p. 208-222. Thomas, R.G., Smith, D.G., Wood, J.M., Calverley-Range, E.A., Visser, J.and Koster, E.H. 1987. Inclined heterolithic...

Imbrication and Initial Dip in a Keweenawan Conglomerate Bed

Walter S. White

Journal of Sedimentary Research (SEPM)

... flood gravels. In addition, many pebbles in the Houghton conglomerate are inclined at about 40° to bedding it is suggested that these pebbles may have...

Estimating Drilling Direction for Optimum Production in a Fractured Reservoir

Richard C. Nolen-Hoeksema , J. H. Howard

AAPG Bulletin

... by an inclined hole. This degenerate case can be reduced to a two-dimensional form by projecting the well bore onto the horizontal plane. The optimum drilling...

The Paradox: A Pull-Apart Basin Of Pennsylvanian Age

G. M. Stevenson, D. L. Baars

Four Corners Geological Society

... the Paradox pull-apart basin nucleated and subsequently developed throughout Middle Pennsylvanian time. Smaller sub-basins developed by orthogonal...

Comparison of National and Private Petroleum Company Exploration Techniques, Philosophy, and Success

A. A. Meyerhoff

CSPG Bulletin

... of a poorly informed public and of equally poorly informed private and public officials. Public education is only a part of the cure for these hostile...

Chapter 13: Linking Cognitive Science and Disciplinary Geoscience Practice: The Importance of the Conceptual Model

Thomas F. Shipley, Basil Tikoff

AAPG Special Volumes

.... The most common use of cross-sections in textbooks is to present orthogonal sections as faces of a block diagram where the 2-D information in a single...

Classification of Porosity and Fractures in Reservoir Rocks

W. A. Waldschmidt , P. E. Fitzgerald , C. L. Lunsford

AAPG Bulletin

... over into Group 4. The one exception belonged in Group 4 with some lapping over into Group 5. This sample was about equally divided into anhydrite...

Salt Structures of Gulf of Mexico Basin--A Review

Grover E. Murray

AAPG Special Volumes

... zones (Fisk, 1944; Murray, 1956b). Individual salt stocks are vertical to slightly inclined, with any or all flanks being vertical to inclined. Some...

Chapter 12: Mowry Shale–Belle Fourche Shale, Bighorn Basin, Wyoming, USA—A Mesozoic Clastic-Biosiliceous Shelf System: A Prolific Source Rock with Associated Mudstone Reservoir Potential

K. M. Bohacs, O. R. Lazar, R. D. Wilson, J. H. S. Macquaker

AAPG Special Volumes

... bedsets are roughly equally common: thickening-upward bedsets comprise 42% of those observed in this facies association, whereas aggradationally stacked...

Sedimentology of the Modern and Holocene Burdekin River Delta of North Queensland, Australia…Controlled by River Output, Not By Waves and Tides

Christopher R. Fielding, Jonathon Trueman, Jan Alexander

Special Publications of SEPM

... facies are somewhat finer-grained but equally well-sorted sands. Three varieties of coastal flats are recognized (mangrove, salt, and other types...