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The AAPG/Datapages Combined Publications Database

Showing 94,221 Results. Searched 195,387 documents.

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Magnetic Stratigraphy and Tectonic Rotation of the Upper Paleocene San Francisquito Formation, Los Angeles County, California

Donald R. Prothero, Robert B. Vacca

Pacific Section SEPM

... of Opdyke et al. (1977), which are statistically clustered; circles with diagonal pattern are Class II sites, which had only two samples, so no statistics...

2001

Comprehensive Fracture Evaluation Using Wireline Borehole Imager and Array Acoustic Tools

Cahyo Nugroho, Gunawan Sucahyo, Adriaan Bal, Pipin Ariyanto, Wilfred Samosir, Edison Nadeak

Indonesian Petroleum Association

... of these sets are not orthogonal. The pervasiveness of the structural trend through the two rock types is clearly evident when the fracture strikes...

2018

Development of a 3-D Depositional Model of Braided-River Gravels and Sands to Improve Aquifer Characterization

Ian A. Lunt, John S. Bridge, Robert S. Tye

Special Publications of SEPM

...-framework gravel increases downstream. D) Two sets of large-scale strata (arrowed) formed by migration of unit bars from left to right. Lower set is made...

2004

Relationship Between the Distribution of Big Endogenic Ore Deposits and the Basement Fracture Pattern - Examples from Four Continents

Jan Kutina

Utah Geological Association

... by Kutina (1973b) from the Cretaceous sedimentary cover of the Czech Massif (Fig. 21). Two main sets of preferential directions have been recognized...

1974

Mapping Depth to Basement Using 2D Werner Inversion of High-Resolution AeroMagnetic (HRAM) Data, #41595 (2015).

Hassan H. Hassan, Robert A. Charters, John W. Peirce

Search and Discovery.com

... grid. 3. Extract two sets of 200m-spacing orthogonal lines from the ASCII grid. These two sets of orthogonal lines represent profiles along which we...

2015

Time Series Analysis II

Gerard V. Middleton

Special Publications of SEPM

... a dimension of two. We expect that two surfaces in threedimensional space will intersect, and the intersection will be a line (Figure 4.2...

1995

Pebble Shape (and Size!)

Werner K. Illenberger

Journal of Sedimentary Research (SEPM)

... inherent in 3-D data sets; there are two shape factors and one size factor. I use this terminology throughout the p per to distinguish these mathematically...

1991

Possible Relationships Between Lineament Tectonics and the Dynamics of the Milky Way Galaxy

Peter J. Haman

Utah Geological Association

... a single system or, two superimposed systems, may be present creating a complex pattern of joints. His System I predominates and has sets trending N65°E...

1974

Log Resistivity Measuring Devices Compared to S-waves from a Vertical-Force Source VSV / VSH Ratio in Identification of Fracture Sweet Spots in Densely Fractured Reservoirs

John M. Robinson, Bob Van Nieuwenhuise

GCAGS Transactions

... the processing of converted wave P–SV data. The direct source S-wave data are processed as a single dataset, not as two separate data sets (i.e....

2014

Log Resistivity Measuring Devices Compared to S-waves from a Vertical-Force Source, #41377 (2014)

John M. Robinson

Search and Discovery.com

... are processed as a single data set, not as two separate data sets (i.e., positive and negative offsets) as with the P-SV data. Direct source S-wave data...

2014

The Hunton Quarry Anticline, Arbuckle Mountains, Oklahoma.

Andrew Cullen

Oklahoma City Geological Society

... principal that formed the Tishomingo anticline. The quarrymen exploited two nearly orthogonal vertical fracture sets (20° and 100° azimuths...

2017

Characterization and development of subsurface fractures observed in the Marcellus Formation, Appalachian Plateau, north-central Pennsylvania

Scott Wilkins, Van Mount, Keith Mahon, Andrew Perry, and Jon Koenig

AAPG Bulletin

... orthogonal to Appalachian Plateau fold axes and an associated set of low-angle reverse faults and stylolites that strike parallel to fold axes. As the trend...

2014

Concurrent Processing of Two 3-D Seismic Data Sets: A Method of Quality Control

J.H. Isaac, D.C. Lawton, J. Eastwood

CSPG Special Publications

...Concurrent Processing of Two 3-D Seismic Data Sets: A Method of Quality Control J.H. Isaac, D.C. Lawton, J. Eastwood 1994 120 121...

1994

Fracture Systems in Folded and Faulted Carbonates: Surface and Subsurface Case Studies

Deborah A. Spratt

Search and Discovery.com

... are observed at all fold positions in outcrop and subsurface data. The two dominant fracture orientations are orthogonal and directly related to in situ...

Unknown

Fracture Systems in Folded and Faulted Carbonates: Surface and Subsurface Case Studies

Deborah A. Spratt

Search and Discovery.com

... are observed at all fold positions in outcrop and subsurface data. The two dominant fracture orientations are orthogonal and directly related to in situ...

Unknown

Paleomagnetic Dating of Liesegang Bands

Karen A. Cochran , R. Douglas Elmore

Journal of Sedimentary Research (SEPM)

...). Samples were collected from two sites on the south flank and two on the north flank of the Arbuckle Anticline so that a fold test could be performed...

1987

From outcrop to flow simulation: Constructing discrete fracture models from a LIDAR survey

Christopher E. Wilson, Atilla Aydin, Mohammad Karimi-Fard, Louis J. Durlofsky, Amir Sagy, Emily E. Brodsky, Oliver Kreylos, Louise H. Kellogg

AAPG Bulletin

... for two hypothetical scenarios: with and without secondary fracture sets. The results of these two scenarios indicate that for this particular...

2011

Antarctic Sediment Drifts and Plio-Pleistocene Orbital Periodicities (Odp Sites 1095, 1096, and 1101)

Marina Iorio, Thomas Wolf-Welling, Tobias Moerz

Special Publications of SEPM

... coefficient 0.984) between the two nondimensional ratio sets. This allows tying the sedimentary thickness wavelengths 2.35 m, 2.80 m, and 3.80 m...

2004

Geomechanical Complexity Associated With Sub-seismic Fold Structures in a Horizontal Well

Dee A. Moronkeji, Weiwei Wu, Ryan Hillier, Christopher Wolfe

Unconventional Resources Technology Conference (URTEC)

... of the orthogonal coordinate system (a, b, and c) with the dotted great circles representing bedding and the solid great circles representing fractures. L: low...

2023

Fluid-flow evolution in the Albanide fold-thrust belt: Insights from hydrogen and oxygen isotope ratios of fluid inclusions

Stefan de Graaf, Casimir W. Nooitgedacht, Johan Le Goff, Jeroen H. J. L. van der Lubbe, Hubert B. Vonhof, and John J. G. Reijmer

AAPG Bulletin

... dissolution activity along fracture planes enhanced the visibility of their traces, which may be continuous over tens of meters. Two systematic sets...

2019

Testing and Adjusting the Binocular Microscope and Suggestions on the Use of Microscopes in General: GEOLOGICAL NOTES

Marcus I. Goldman

AAPG Bulletin

... important. All adjustments between the two eyes having been made, cover the field of one eye, focus the microscope carefully for the other eye on the circles...

1925

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