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The AAPG/Datapages Combined Publications Database

Showing 43,831 Results. Searched 200,619 documents.

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Late Devonian Peraluminous Granitic Plutons in the Canso Area, Eastern Meguma Terrane, Nova Scotia

J. D. Hill

Atlantic Geology

... in muscovite, aluminum and alkalis and depleted in biotite and cafemic components relative to comparable rocks in other Meguma Terrane granites...

1988

Early Evolution of the Oceansa„A Weathering Model

G. Michel Lafon, Fred T. Mackenzie

Special Publications of SEPM

... abundances permits an eval 2 of the mass of the excess volatiles modeling of the reaction per balancing investigation Goldschmidt Rock Minerals Excess...

1974

Improving Depth Prediction Accuracy of Quantified Drilling Hazards

W. Scott Leaney, William H. Borland

Geological Society of Malaysia (GSM)

...). In the following sections we look at the geopressure problem, review the seismic trace inversion problem and examine the essential components of high...

1996

The Billy's Peak Mafic Complex of the Trinity Sheet, California: Roots of a Paleozoic Island Arc

Scott W. Petersen, Calvin G. Barnes, James D. Hoover

Pacific Section SEPM

... to determine the degree of structural disruption in the peridotite, owing to poor exposures; however, the relative structural integrity seen throughout much...

1991

Ichnologic, Taphonomic, and Sedimentologic Clues to the Deposition of Cincinnatian Shales (Upper Ordovician) Ohio, U. S. A.

Danita Brandt Velbel

Special Publications of SEPM

... The spatial distribution and density of biogenic structures in these trilobite shales fauna mostly Flexicalymene and Isotelus help clarify the relative...

1984

Quantitative Facies Characterization of the Wolfcamp Shale, Midland Basin Using Anisotropy of Magnetic Susceptibility and Hand-held X-Ray Fluorescence

Gerhard Heij, Bryan Turner, Alyssa Wickard, Doug Elmore

Unconventional Resources Technology Conference (URTEC)

... interval. Sample coordinate systems were reoriented using FMI logs and are projected relative to a geographic coordinate system. Reorientation...

2016

Using Hierarchical Cluster Analysis to Improve Facies Definitions in Permian Mudrocks (Wolfcamp and Lower Leonard), Midland Basin, Texas; #41986 (2017)

Robert W. BaumgardnerJr., Harry D. Rowe

Search and Discovery.com

... the abundance of elemental data (20+ major and trace elements for every data point) is problematic. The object of this study was an 852-ft continuous core...

2017

Diagenesis of Carbonate Debris Deposits from the Sebuku Block, Makassar Strait, Indonesia

Chrisna A. Tanos, Julie Kupecz, Argha S. Hilman, Dedi Ariyono, Ian L. Sayers

Indonesian Petroleum Association

... in resolving the paragenesis and relative timing of porosity development. Results indicate that the Late Oligocene debris flow carbonates have a complex...

2013

Deformation of Flysch Formations in the West Bourland Mountain Area, Western Marathon Basin, Texas

Mary Anne Duncan

West Texas Geological Society

... formations is poor relative to many of the older Paleozoic formations; however, the Dimple Limestone is resistant in the dry West Texas climate and forms...

1985

Regression Models for Faulted Structural Surfaces

W. R. James

AAPG Bulletin

.... (The sign of a3 indicates the relative direction of movement.) Estimation: For a given set of data the sum of squares of the residuals...

1970

Two-dimensional Kinematic Modeling of the Southern Kirthar Fold Belt, Pakistan

J. N. Fowler, R. Graham, W. Sassi, J. D. Smewing, J. Warburton

AAPG Special Volumes

... to assess the petroleum potential of foreland fold and thrust belts. The method employs the use of forward modeling and cross section balancing...

2004

Effect of High-Pressure Deformation on Permeability of Ottawa Sand

Mark D. Zoback , James D. Byerlee

AAPG Bulletin

... changes relative to an initial confining pressure of 20 bars and pore pressure of 7.5 bars and then extrapolating back to atmospheric conditions...

1976

Application of random forest algorithm to predict lithofacies from well and seismic data in Balder field, Norwegian North Sea

Hoang Nguyen, Bérengère Savary-Sismondini, Virginie Patacz, Arnt Jenssen, Robin Kifle, and Alexandre Bertrand

AAPG Bulletin

... to that criterion relative to the total number of samples in the training data. The model starts with the first node (root), in which both rainy and sunny...

2022

High Resolution Sequence Stratigraphy and Diagenesis in Carbonate Rocks, Wonosari Formation, Yogyakarta: An Outcrop Analog for Modeling Chalky Limestone Reservoir Distribution

Usman Jauhari, Budianto Toha

Indonesian Petroleum Association

... in the eastern and middle area but difficult to trace in the western area. This might be caused by the fact that relative sea level only exposes the eastern...

2005

BRAZOS 440-L FIELD OFFSHORE TEXAS

Richard F. Lane and Robert C. Pace

GCAGS Transactions

... Miocene age.  SEISMIC ACQUISITION In 1995, after several years of relative inactivity, a speculative survey of 3-D seismic was shot by PGS/ Jebco using...

1998

Direct Evidence of Hydrocarbon Accumulations from Seismic Data

E. G. Selby

Indonesian Petroleum Association

.... The data were shot for 24-fold coverage and the trace spacing on this display is 25m. Figure 3 is a display of this same section where the vertical...

1975

Reduction of the Seismic Data Management Problem by Sign Bit Recording

J'T. O'Brien, W. P. Kamp, G. M. Hoover, G. W. Crosby

Indonesian Petroleum Association

... trace is composed of coherent repeatable signals and random noise. For single shot, single trace data noise levels are ordinarily comparable...

1979

Spring Deposits: Surface Expressions of the Henry's Fork Fault, Sweetwater County, Wyoming

Ronald W. Wiegman

Wyoming Geological Association

... on the Green River Formation in Sweetwater County, Wyoming, appear to trace an extension of the Henry's Fork fault system, Composed predominantly...

1965

Direction-dependent strain transfer function of DAS considering gauge length and pulse shape with its implications on high spatial resolution acquisitions

Peter Hubbard

International Meeting for Applied Geoscience and Energy (IMAGE)

... measurement information. DAS would be a convenient tool for these applications because of its large spatial coverage, trace density and exceptional strain...

2022

EXTENDED ABSTRACT: A comprehensive understanding of rare earth elements and yttrium in coal ash: enrichment mechanisms, speciation, and extraction techniques

Biao Fu, James C. Hower, Wencai Zhang, Hong Yao

The Society for Organic Petrology (TSOP)

... of the trace elements in coal, but also provide basis for modeling REY partitioning during coal combustion and for developing economically viable REY recovery...

2021

EXTENDED ABSTRACT: Organic petrology and geochemistry of the Los Molles Formation (Middle Jurasic) in the Picún Leufú area, Neuquén Basin

Fernando Larriestra, Georgina Erra, Marcos Comerio, Juan Pineda, Alejandro Gómez Dacal, Santiago Genta Iturreria, Eduardo G. Ottone

The Society for Organic Petrology (TSOP)

..., minor and trace elements percentages were obtained using a handheld XRF after the method described by Muller et al. (2017). 105 Copyright © 2021...

2021

Landsat Interpretation of Devil’s River – Marathon Uplift; Val Verde Basin, Southwest Texas

Patrick J. Shannon

West Texas Geological Society

... associated structural rollovers would be somewhere behind the surface trace. Small circular anomalies in this position seen in several places probably...

1998

Sedimentologic, Paleontologic, and Ichnologic Criteria for the Recognition of Ancient Estuarine Deposits: An Example from the Lower Cretaceous McMurray Formation in the Athabasca Oils Sands Area of Northeastern Alberta

Blair W. Mattison, Andrew J. Fox, S. George Pemberton

CSPG Special Publications

... and are restricted to lows on the unconformity surface. Relative sea level rise transformed the lower McMurray fluvial channels into a complex of estuarine channels...

1989

Shannon Sandstone, Salt Creek Area, Wyoming

Roderick W. Tillman

Wyoming Geological Association

... deposits and lowstand shoreface deposits. The Shannon contains few body fossils except for Baculites (smooth), however trace fossils are moderately...

1997

Uranium Distributions in Recent Skeletal Carbonates

Johannes H. Schroeder , Donald S. Miller, Gerald M. Friedman

Journal of Sedimentary Research (SEPM)

... portions of the skeleton; configuration and the factor of relative enrichment of this zone vary between different coral species. The branching coral...

1970

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