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The AAPG/Datapages Combined Publications Database

Showing 1,363 Results. Searched 187,994 documents.

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Recognizing Fossil Strand Lines From Grain-size Analysis: DISCUSSION

Anil Lyall, James Shearer

Journal of Sedimentary Research (SEPM)

..., curves 4, 5, 6). These results do not coincide with those advocated by Chappell. The parallelism of curves in this figure 3 is not expected when...

1969

Quantitative Sedimentologic Application for Dipmeter Data: ABSTRACT

Marian J. Furst

AAPG Bulletin

... quantitative analysis. This new program computes curves that provide measures of the thickness between dip correlations, planarity of correlations...

1985

A Study of Textural Changes in a Beach by Repeated Samplings

Marshall Schalk

Journal of Sedimentary Research (SEPM)

... that a parallelism of trend is indicated. Station C.--At this station the median curves show a distinct parallelism. With a variation in median from 0.24 to 0.34 mm...

1946

Settling Velocities of Quartz and Tourmaline in Eolian Sandstone Strata

James R. Steidtmann, Harry C. Haywood

Journal of Sedimentary Research (SEPM)

... for quartz, tourmaline, and all other heavy minerals together from several preliminary samples. The general parallelism of these curves, and the parallelism...

1982

Micro-Mechanisms of Sedimentation in the Epicontinental Environment

Albert V. Carozzi

Journal of Sedimentary Research (SEPM)

... last a very short time (fig. 13B); these conditions are clearly displayed when the curves are compared to one another. In other instances, however...

1958

A Sedimentological Continuum Occurring through Geologic Time: A Study for students

B. R. Pelletier

Atlantic Geology

... in grain size in the direction of transport is apparent, as is the parallelism of the curves with each other. THE TIME INTERVAL OF A GEOLOGIC PERIOD...

1980

Hydrocarbons in Non-Reservoir Rocks--Source Beds: ABSTRACT

Ellis E. Bray

AAPG Bulletin

.... There is a parallelism between amount of organic carbon, quantity of hydrocarbons, frequency of occurrence of dispersed oil in non-reservoir rock, and the occurrence...

1964

Interpretation of Fossil Fluvial Bivalve Burrows in Catskill Formation, Based on Analogy with Margaritifera margaritifera (L.): ABSTRACT

Richard E. Thoms, Thomas M. Berg

AAPG Bulletin

... preferential curvature, cross-sectional ellipse parallelism, and internal asymmetric crescentic features. Vectorial analysis of these features has been based...

1980

A Note on Thin Section Mechanical Analysis: NOTES

Sudhir Basumallick

Journal of Sedimentary Research (SEPM)

.... Both the long-diameter and short-diameter for each grain are measured and cumu ative curves are drawn showing each type of distribution (fig. 2), phi...

1964

Limitations of Reflection Seismograph

L. E. Nugent, Jr.

AAPG Bulletin

... plots of these first arrivals has the slope 1/V1. If the line is extrapolated to the shot point, the intercept represents the average delay time...

1953

Drainage Analysis in Geologic Interpretation: A Summation

Arthur David Howard

AAPG Bulletin

... transitions from dendritic to parallel drainage. Transitional types also may result from changes with time. The change toward parallelism might result...

1967

Size Frequency Distributions of Sediments and the Normal Phi Curve

W. C. Krumbein

Journal of Sedimentary Research (SEPM)

... implications of normal phi curves are given, in terms of environmental factors which may control them. CAMP, B. H., 1931, The mathematical part of elementary...

1938

Fore-Reef Petrography of the Silurian Richvalley Reef, Indiana

Albert V. Carozzi, John B. Hunt

Journal of Sedimentary Research (SEPM)

... to microfacies 5. The detrital supply was regular, accounting for the parallelism between the curves of size and frequency. This rather peculiar origin...

1960

Relationships between Initial Porosity of Tertiary Argillaceous Sediments and Paleosalinity in the Rheintalgraben (SW-Germany)

Dietrich Heling

Journal of Sedimentary Research (SEPM)

.... A striking parallelism between the curves of salinity and porosity is evident. The modified initial porosity of the saline Lymnaenmergel and Lower...

1969

Salients, Recesses, Arcs, Oroclines, and SyntaxesA Review of Ideas Concerning the Formation of Map-view Curves in Fold-thrust Belts

Stephen Marshak

AAPG Special Volumes

...Salients, Recesses, Arcs, Oroclines, and SyntaxesA Review of Ideas Concerning the Formation of Map-view Curves in Fold-thrust Belts Stephen Marshak...

2004

The Process of Deposition of the Salina Salt of Michigan

Louis F. Dellwig

Journal of Sedimentary Research (SEPM)

... with solar salt and artificially produced grainer salt reveals similarities in the crystals which necessitate a parallelism of genesis. Additional...

1954

Microstructure of Unconsolidated and Consolidated Marine Sediments

Frederick A. Bowles, William R. Bryant, Charles Wallin

Journal of Sedimentary Research (SEPM)

... again, and so on. The results of the test are plotted as void ratio (e) versus log pressure (p) curves with the pressure given in Kg/cm2. For a complete...

1969

System in Photogeology

Ronald R. Hartman , Kalman N. Isaacs

AAPG Bulletin

... dendritic, but local parallelism is common due to joint control. Gullies that develop in the soil mantle are steep-sided. The area is usually forested...

1958

Fossil Diversity in Thin Section

Richard Smosna, Steven Warshauer

Journal of Sedimentary Research (SEPM)

... Biology, v. 13, p. 131-144. SANDERS, H. L., 1969, Benthic marine diversity and the stability-time hypothesis: In Diversity and stability in ecological...

1978

Computer-Generated Corelike Descriptions from Open-Hole Logs (1)

HERVE ANXIONNAZ, PIERRE DELFINER, and JEAN PIERRE DELHOMME

AAPG Bulletin

... microresistivity curves. The various descriptive elements then are analyzed and combined using geological information encoded as rules or knowledge...

1990

Fracture Phenomena in the Waterways and McMurray Formations, Athabasca Oil Sands Region, Northeastern Alberta

E. A. Babcock

CSPG Bulletin

... paralleling the meander curves. At station 3-20 there is close parallelism between northwest-striking joints and the bank of a minor channel connecting...

1975

Validity of Polar and Continental Movement Hypotheses Based on Paleomagnetic Studies

J. W. Northrop III , A. A. Meyerhoff

AAPG Bulletin

...------------------------------ curves (Fig. 1) illustrate this belief. The two curves lie 3,000 to 5,000 km apart until Mesozoic time. This separation usually is explained...

1963

Mechanical Factors Affecting Stimulation Design in Devonian Gas Shale: ABSTRACT

William J. Gregg, T. H. Mroz

AAPG Bulletin

... fractures throughout the basin was generally parallel to the trend of Paleozoic tectonic structure. This parallelism, as well as the details...

1983

Cross-Laminations in Graded Bed Sequences

K. Jinghwa Hsu

Journal of Sedimentary Research (SEPM)

... curves of a few selected samples are shown in figure 3. Petrographically, they are more similar to what has been called arkose than to what has been...

1964

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