Grain-Shape Indices and Isometric Graphs

H.J. Hofmann

Journal of Sedimentary Research (SEPM)

... their focus at the apex and make more nearly orthogonal intersects with the lines for the disc-rod index. The discrepancy is greater with respect...

The Paradox: A Pull-Apart Basin of Pennsylvanian Age: Part IV. Southern Rocky Mountains

G. M. Stevenson, D. L. Baars

AAPG Special Volumes

... nucleated and subsequently developed throughout Middle Pennsylvanian time. Smaller subbasins developed by orthogonal spreading along intersecting...

Regional Subdivisions, Sequences, Correlations and Facies Relationships of the Lower Triassic Montney Formation, West-Central Alberta to Northeastern British Columbia, Canada — with Emphasis on Role of Paleostructure

Graham R. Davies, Neil Watson, Thomas F. Moslow, James A. MacEachern

CSPG Bulletin

... length of over 1000 kms. The cross-sections are presented in two formats: proportionally-spaced LAS log sections, included as text figures; equally...

Flute-Like Marks and Associated Structures from the Carboniferous Port Hood Formation of Eastern Canada: Evidence of Secondary Origin in Association with Sediment Intrusion

Dave G. Keighley, Ron K. Pickerill

Journal of Sedimentary Research (SEPM)

..., inclined, stepped, and top surfaces of sandstone beds in contact with mudstone bodies. These occurrences are difficult to reconcile with primary...

The Salem Oil Field

H. H. Arnold Jr

Kansas Geological Society

... as greenish to grey, fine to medium coarse grained angular sand. Muscovite flakes are present throughout the sand body. The top of the sand is inclined...

ABSTRACT: The Source of the Coal in the Titanic and Effects of Exposure to Seawater

Curtis A. Palmer, Robert B. Finkelman, Gerald H. Luttrell, Chaosheng Zhang, Cortland Eble

The Society for Organic Petrology (TSOP)

... for fixed carbon and volatile matter indicate that the Titanic samples are all bituminous in rank, and equally distributed among low volatile, medium...

Experiment in Photographing the Walls of Drill Holes in Carbonate Rocks

A. R. Kinzikeyev

Petroleum Geology: A Digest of Russian Literature

... there are extensive microfractures, which are predominantly horizontal; moderately inclined fractures are observed more rarely. The width of most of the fractures...

Fusulinid-Bearing Rocks in Sublett Range, Southern Idaho: REPLY

Walter Youngquist

AAPG Bulletin

... the Wells formation type section in Wells Canyon and feel that if the Wells were defined strictly from this section we might be equally justified in using...

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...

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...

III Columbia Oil & Gas Investment Conference: Conventional & Unconventional Hydrocarbon Resources - Abstracts

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... (or moving coil) sensors were used, either in arrays or individually, together with conventional data recording systems. The weight of the 3C geophones...

Quantifying Variability in Hydraulic Fracture Geometry Using Stage-by-Stage ISIP Analysis in Geomechanically Heterogeneous Rocks

Erfan Sarvaramini

Unconventional Resources Technology Conference (URTEC)

... fracture height) Consider a horizontal well that is hydraulic fractured with n equally spaced stages at a distance of Ls between each stage as illustrated...

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...

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...

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...

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...

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...