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The AAPG/Datapages Combined Publications Database

Showing 706 Results. Searched 200,619 documents.

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Geostatistical Earth modeling of cyclic depositional facies and diagenesis

Thomas Le Blévec, Olivier Dubrule, Cédric M. John, and Gary J. Hampson

AAPG Bulletin

... by correlation coefficient β and then shifted by a vector noted α (equation 4 in the Appendix), which gives the direction of the cyclicity...

2020

Architectural analysis of subsurface meander-belt sandstones: A case study of a densely drilled oil field, Zhanhua sag, east of Bohai Bay Basin

Zhifeng Sun, Chengyan Lin, Xianguo Zhang, Dongxing Du, Yong Yang, and Jia Guo

AAPG Bulletin

... channel width (Wc) is estimated from measured channel story thicknesses (h) and the dip angle of lateral accretion surfaces (β) by using...

2020

Geochemical characterization and classification of crude oils of the Permian Basin, west Texas and southeastern New Mexico

Simon Echegu, Adry K. Bissada, and Louis Elrod

AAPG Bulletin

... (e.g., Pu et al., 1987; ten Haven et al., 1988). S, R, α, and β represent the stereochemical configuration of the biomarker in question. D &equals...

2021

Geological evaluation of suprasalt carbon storage opportunities in the Silverpit Basin, United Kingdom Southern North Sea

A. D. Hollinsworth, I. de Jonge-Anderson, J. R. Underhill, and R. J. Jamieson

AAPG Bulletin

... compressional velocity using Gardner et al. (1974)’s approximation: where ρ is the density, VP is the P-wave velocity, and α and β are constants derived from...

2022

Deep hydrothermal dolomitization in a superimposed basin that experienced multiple tectonic-thermal events

Zhiqian Gao, Duan Wei, Kaikai Li, Hairuo Qing, Shoutao Peng, Jingbin Wang, Ruisi Li, and Tailiang Fan

AAPG Bulletin

... et al. (2016), wherein ages are quoted without and with systematic uncertainties, as ± α/β, respectively. RESULTS Petrographic Characteristics...

2025

Chapter 16: Controls on Stratal Record: Mechanisms and Contingencies Affecting Sediment Supply and Accommodation

Kevin M. Bohacs

AAPG Special Volumes

... and character, aquifer character, and standing-water character (after Freeze and Cherry, 1979): (11) z 2 = - 2 β Q λ K z ( 1 + β x   ( 11...

2022

Chapter 11: Origin and Petroleum System of the Cabo Frio High Between the Santos and Campos Basins: Reviewed Integration of Structural and Paleogeographic Reconstruction with the Oil and Gas Systems

W. U. Mohriak, A. Gordon, M. R. Mello

AAPG Special Volumes

... system include the presence of β-carotane, diasteranes/TPP ratio less than 1, gammacerane index between 0.12 and 0.30, Ts much lesser than Tm, hopane...

2021

Modest Change In Fluvial Style With Varying Accommodation In Regressive Alluvial-To-Coastal-Plain Wedge: Upper Cretaceous Blackhawk Formation, Wasatch Plateau, Central Utah, U.S.A

Gary J. Hampson, Thomas O. Jewell,, Nawazish Irfan,,† M. Royhan Gani, Bryan Bracken

Journal of Sedimentary Research (SEPM)

..., bankfull channel width is estimated from measured sandbody thickness (h) and the dip angle of lateral-accretion surfaces (β) using the relationship proposed...

2013

Bedform Disequilibrium

Paul M. Myrow, Douglas J. Jerolmack, J. Taylor Perron

Journal of Sedimentary Research (SEPM)

... larger, however, their migration rates (c) slow down as a consequence of mass conservation: where H is bedform height, and β is a shape factor...

2018

Active Ooid Growth Driven By Sediment Transport in a High-Energy Shoal, Little Ambergris Cay, Turks and Caicos Islands

Elizabeth J. Trower, Marjorie D. Cantine, Maya L. Gomes, John P. Grotzinger, Andrew H. Knoll, Michael P. Lamb, Usha Lingappa, Shane S. O'Reilly, Theodore M. Present, Nathan Stein, Justin V. Strauss, Woodward W. Fischer

Journal of Sedimentary Research (SEPM)

...) or octadecatrienoic acid (Cyanobacteria), the pigments Chlorophyll-a, phaeophytin a, β-carotene and zeaxanthin (algae and Cyanobacteria...

2018

Age Progression and Petrological Development of Samoan Shield Volcanoes: Evidence from K-AR Ages, Lava Compositions, and Mineral Studies

James H. Natland, Donald L. Turner

Circum Pacific Council Publications

... of Alaska, Fairbanks. K O values in parentheses by XRF (Natland, 1975) on separate pieces of the same rocks. - 1 0 - 1 0 y r - 1 - 4 40K/K β 2...

1985

Geophysical Data from the Continental Margin off Wilkes Land, Antarctica--Implications for Breakup and Dispersal of Australia-Antarctica

M. König

Circum Pacific Council Publications

... for the stretching fac­ tor β(Hegarty, 1 9 8 5 ) , corresponding to 3 0 % of crustal exten­ sion. Hegarty's detailed analysis of the stratigraphic record...

1987

Geochemical mudstone study of Late Pennsylvanian to early Permian strata in the southern margin of the Delaware Basin (Wolf Camp Hills, Texas) and its depositional implications

Maria A. Gutierrez,, Benjamin H. Richards,, Jake K. Sleight, Arthur D. Donovan, Michael C. Pope

Journal of Sedimentary Research (SEPM)

... and has a copper (Cu) target tube. The tube voltage was set to 40 kV and a current of 15 mA. Samples were scanned in a continuous mode, using a K-β...

2025

Subsidence Dynamics of the Montney Formation (Early Triassic, Western Canada Sedimentary Basin): Insights for its Geodynamic Setting and Wider Implications

Sébastien Rohais, Vincent Crombez, Tristan Euzen, John-Paul Zonneveld

CSPG Bulletin

... estimated the stretching with the Beta factor (β) (i.e. ratio between the initial crustal and the final crustal thickness; McKenzie, 1978) using...

2018

Sedimentology, Depositional Model, and Implications for Reservoir Quality

Daniel Minisini, Patricio Desjardins, Germán Otharán, Maximiliano Paz, Diego Kietzmann, Gregor Eberli, Carlos Zavala, Toni Simo, James H. Macquaker, Christian Heine

AAPG Special Volumes

...). Time of deposition derived from ammonite biozones (see Figure 5 of Minisini et al., 2020, this Memoir). A uniform crustal stretching factor (β) of 1.3...

2020

Structural Geology: Tectonic History, Macrostructures, Regional Fault Map, Fault Systems, Second-Order Structures, and Impact of the Inheritance

Denis Marchal, Rene Manceda, Ricardo Fabián Domínguez, Federico Sattler

AAPG Special Volumes

... indicates a low β factor of 1.074 (7.4% extension) (Jorgensen et al., 2014). At that time, the subduction was nonexistent or very slow (Ramos et al...

2020

Chapter 1: The Santos Basin Pre-Salt Super Giant Petroleum System: An Incredible Journey from Failure to Success

M. R. Mello, W. Peres, S. P. Rostirolla, O. A. Pedrosa, Jr., A. Piquet, S. Becker, P. O. Yilmaz

AAPG Special Volumes

...). The key biomarker features for the rock extract and oils are the presence of β-carotane (e.g., not showing in Figure 8), hopane/sterane ratio greater...

2021

Numerical Modeling of Tides in the Late Pennsylvanian Midcontinent Seaway of North America with Implications for Hydrography and Sedimentation

Martin R. Wells, Peter A. Allison, Matthew D. Piggott, Gerard J. Gorman, Gary J. Hampson, Christopher C. Pain, Fangxin Fang

Journal of Sedimentary Research (SEPM)

... of the following approximations is made: (1) the f-plane approximation, which applies a constant value of f to the entire domain (f = fo) or (2) the β...

2007

Organic geochemistry of the Eagle Ford Group in Texas

Andrea A. Miceli Romero, Thanh Nguyen, and R. Paul Philp

AAPG Bulletin

...). Isorenieratene can also be formed from aromatization of β-carotene, a common pigment of various photosynthetic organisms; therefore, some caution needs...

2018

Onshore–offshore correlations of Cretaceous fluvial-deltaic sequences, southern Baltimore Canyon trough

William J. Schmelz, Kenneth G. Miller, Gregory S. Mountain, James V. Browning, and Kimberly E. Baldwin

AAPG Bulletin

...-sea reflector β identified beneath the modern continental rise (Mountain and Tucholke, 1985). The carbonate platform was generally progradational...

2020

Timing and origin of multiple petroleum charges in the Solveig oil field, Norwegian North Sea: A rhenium-osmium isotopic study

Svetoslav V. Georgiev, Holly J. Stein, Judith L. Hannah, and Rolando di Primio

AAPG Bulletin

...:10.1021/ef201218m. The radioactive β− decay of 187Re to 187Os with time (decay constant λ = 1.666 ± 0.017 × 10−11 yr−1; half-life ca. 41.6 Ga; Smoliar et al...

2021

Fractal characteristics of pore networks and sealing capacity of Ordovician carbonate cap rocks: A case study based on outcrop analogues from the Tarim Basin, China

Jun Wu, Tailiang Fan, Enrique Gomez-Rivas, Anna Travé, Zhiqian Gao, Shanshan Wang, and Xiaolong Sun

AAPG Bulletin

...(β is a constant related to the geometric shape of the pore and rmin...

2021

Skempton’s poroelastic relaxation: The mechanism that accounts for the distribution of pore pressure and exhumation-related fractures in black shale of the Appalachian Basin

Terry Engelder, and Rose-Anna Behr

AAPG Bulletin

... 37-083-55942 (Zhou et al., 2018). Variable B is calculated using the following:where β is the isothermal bulk compressibility for the Hamilton Group...

2021

Northern Extension of Active Petroleum Systems in the Offshore Perth Basin„ an Integrated Stratigraphic, Geochemical, Geomechanical and Seepage Study

N. Rollet, M. Pfahl, A. Jones, J. Kennard, C. Nicholson, E. Grosjean, D. Mantle, D. Jorgensen, G. Bernardel, R. Kempton, L. Langhi, Y. Zhang, L. Hall, R. Hackney, S. Johnston, C. Boreham, D. Robertson, P. Petkovic, M. Lech

Petroleum Exploration Society of Australia (PESA)

... the observed tectonic subsidence curve for each well to a variety of predicted tectonic subsidence curves that were based on varying β values (stretching...

2013

Chapter 14: Gravity, Seismic Reflection, and Tomographic Constraints on the Subduction-to-Strike-Slip Transition at the Southeastern Caribbean Plate Boundary Zone

Tricia G. Alvarez, Paul Mann, Carlos A. Vargas, Lesli J. Wood

AAPG Special Volumes

... and station locations as foci. The ellipsoidal volume that is sampled by the coda wave at a given time (t) is, therefore, a function of the S-wave velocity (β...

2021

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