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The AAPG/Datapages Combined Publications Database
Showing 778 Results. Searched 196,121 documents.
Actualistic Studies of the Spatial and Temporal Distribution of Terrestrial and Aquatic Organism Traces in Continental Environments to Differentiate Lacustrine from Fluvial, Eolian, and Marine Deposits in the Geologic Record
Stephen T. Hasiotis, Brian F. Platt, Mark Reilly, Kathryn Amos, Simon Lang, David Kennedy, Jonathan A. Todd, Ellinor Michel
AAPG Special Volumes
... to the profundal zone.BackgroundLake Tanganyika is the largest, longest, and oldest of the East African Rift Valley lakes formed in the western branch...
2012
AAPG Studies in Geology No.53 - Part 2: Case Studies
edited by John H. Shaw, Christopher D. Connors and John Suppe
AAPG Special Volumes
... bend that is the locus for development of a fault-propagation fold. Figure 10b: (1) is a fault-propagation fold, with slight backward shear (2...
2005
Neoichnological experiments with masked chafer beetles (Coleoptera: Scarabaeidae): Implications for backfilled continental trace fossils
John W. Counts, Stephen T. Hasiotis
PALAIOS
... fill resulting from sediment collapse and sediment transported backward. When vertical, adult burrows contain chevron-shaped fill. Traces produced...
2009
Variation in wingless insect trace fossils: insights from neoichnology and the Pennsylvanian of Massachussetts
Patrick R. Getty, Robert Sproule, David L. Wagner, Andrew M. Bush
PALAIOS
... in the direction of locomotion indicates that in these fossils linear series are staggered forward, rather than backward (Sadler, 1993). Where a medial...
2013
SCLEROBIONTS, SHELL MORPHOLOGY AND BIOSTRATINOMY ON AMMONITES: TWO EARLY CRETACEOUS CASES FROM THE NEUQUÉN BASIN, ARGENTINA
LETICIA LUCI, MARCELA CICHOWOLSKI, MARÍA BEATRIZ AGUIRRE-URRETA, MARCELA CICHOWOLSKI, MARÍA BEATRIZ AGUIRRE-URRETA
PALAIOS
.... Spherocone ammonites such as W. vacaense would have been good backward swimmers, with moderate steerage and good vertical motility (Westermann 1996...
2016
Taphonomy and paleoecology of an ophiuroid-stylophoran obrution deposit from the Lower Devonian Bokkeveld Group, South Africa
Mhairi Reid, Wendy L. Taylor, Carlton E. Brett, Aaron W. Hunter, Emese M. Bordy
PALAIOS
... straight back, lateral arms curved backward and tips bent in a ‘‘u’’ shape, oral side up (inverted position) one or two leading arms raised, lateral arms...
2019
THE COLORADO EARTHQUAKE OF NOVEMBER 7,1882: SIZE, EPICENTRAL LOCATION, INTENSITIES, AND POSSIBLE CAUSATIVE FAULT
Robin K. McGuire, Alan Krusi, Sherry D. Oaks
Rocky Mountain Association of Geologists
..., oscillating from west to east and backward and forward. The second and third shocks were comparatively hght, but clearly perceptlble t o a person standing...
1982
Paleoecological Factors Controlling Distribution and Mode of Life of Cretaceous Ammonoids in Texas Area
Gayle Scott
AAPG Bulletin
... of an efficient hyponomic funnel which expelled water forward, thus serving to propel the animal backward after the manner of the modern squid. By correlative...
1940
Pressure and Basin Modeling in Foothill Belts: A Study of the Kutubu Area, Papua New Guinea Fold and Thrust Belt
Jean-Paul Callot, William Sassi, François Roure, Kevin Hill, Nigel Wilson, Renaud Divies
AAPG Special Volumes
... of the sections are created working backward from the present, including kinematic restoration, backstripping, and thickness modification. For each restoration...
2017
Resolving Multiphase Fractions in Horizontal Wells Using Speed of Sound Measured with Distributed Acoustic Sensors and a PVT Database
Peyman Moradi, Brian Seabrook, Neal Adair, Ricardo Garza
Unconventional Resources Technology Conference (URTEC)
... such as DAS-based flow regimes estimations into the workflow. Instead of resorting to statistical analysis and backward modeling to determine SoS...
2024
Sea level and vertical motion of continents from dynamic earth models since the Late Cretaceous
Sonja Spasojevic, Michael Gurnis
AAPG Bulletin
... their individual limitations. First, we simply integrate backward (e.g., simple backward integration [SBI] method of Liu and Gurnis, 2008) from...
2012
Experiments on Wedge-Shaped Deep Sea Sedimentary Deposits in Minibasins and/or on Channel Levees Emplaced by Turbidity Currents. Part I. Documentation of the Flow
Octavio E. Sequeiros, Benoit Spinewine, Marcelo H. Garcia, Rick T. Beaubouef, Tao Sun, Gary Parker
Journal of Sedimentary Research (SEPM)
.... In order to reach a quasi-steady state flow, the head of the current must reach the downstream end of the study zone and be reflected backward in the form...
2009
Subduction in the Indonesian Region
Warren Hamilton
Indonesian Petroleum Association
... sediments and basement against and beneath its toe, and also by internal imbrication which is a gravitationally driven response to backward, subductive...
1976
An Iteratively Coupled Model for Flow, Deformation, and Fracture Propagation in Fractured Unconventional Reservoirs
Harun Rashid, Femi Olorode, Chukwudi Chukwudozie
Unconventional Resources Technology Conference (URTEC)
.... To solve the governing equation for fluid flow in the matrix, we discretize the partial differential Equation [6] in time and space. We use the backward...
2021
Terrestrial and aquatic neoichnological laboratory experiments with the freshwater crayfish Orconectes: Trackways on media of varying grain size, moisture, and inclination
Justin M. Fairchild, Stephen T. Hasiotis
PALAIOS
... walking, are used by males during mating. Females use pereiopod 4 in rolling forward and backward during egg laying and pereiopod 5 in the cleaning...
2011
On the Formation of the Vitiaz Trench Lineament and North Fiji Basin
Thomas M. Brocher
Circum Pacific Council Publications
... and actively subducting segments of the Tonga Trench is now taking place at 90 mm/yr along the Fiji Transform Fault (Figures 1 and 2 ) . Backward extrapola tion...
1985
New Applications of Computer-Based Section Construction: Strain Analysis, Local Balancing, and Subsurface Fault Prediction
J. Geiser, P.A. Geiser, Roy Kligfield, R. Ratliff, M. Rowan
Rocky Mountain Association of Geologists
... @ was then created by drawing line lengths from pin line 8 backward t o fault segment 9 (Fig. 14c). The next step involved transferring the line lengths within...
1988
Analog Modeling of Doubly Vergent Thrust Wedges
K. R. McClay, P. S. Whitehouse
AAPG Special Volumes
..., displacement on retrovergent thrusts TR2 and TR3 carried the first-formed main provergent thrust T1 backward, up into the zone of axial uplift (Figure 10avi...
2004
Use of Seismic-Derived Velocities for Stratigraphic Exploration on Land: Seismic Porosity and Direct Gas Detection: Chapter 4
Norman S. Neidell, J. H. Beard, Ernest E. Cook
AAPG Special Volumes
... on the structure, we essentially flatten it and view all below as though we had moved backward in geologic time. We may now assess the new view...
1985
Calculating Lunar Retreat Rates Using Tidal Rhythmites
Erik P. Kvale , Hollis W. Johnson , Charles P. Sonett , Allen W. Archer , Ann Zawistoski
Journal of Sedimentary Research (SEPM)
...----------------------- the number of synodic months per year. As one goes backward in time, one finds that the Moon was closer to the Earth and all its periods were...
1999
Subsurface Structure of the Eastern Edge of the Zagros Basin as Inferred from Gravity and Satellite Data
Mohamed N. Bushara
AAPG Bulletin
... to -160 mGal over the suture zone between the Arabian margin and central Iran crustal blocks. The second feature is marked by a backward-L-shaped pair...
1995
Interpreting shoreline sands using borehole images: A case study of the Cretaceous Ferron Sandstone Member in Utah
Chunming Xu
AAPG Bulletin
.... The thick Kf-B shoreface sandstones in the BHI 1 well (close-up image in Figure 10) consist of three backward-stepping parasequences and probably pinch...
2007
Deep compressed learning for 3D seismic inversion
Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Therefore, the forward-pass employs the binarization function, whereas the backward-pass utilizes the hard-sigmoid function σH (x), defined as follows: σH...
2023
Earthquakes in the San Andreas Fault Zone, Maricopa to Elizabeth Lake
Gordon B. Oakeshott
Pacific Section SEPM
..., SEPM (Society for Sedimentary Geology) great Fort Tejon earthquake took place. The best we can do is count backward from a jeweler's clock which...
1964
GIS and GPS for Earth Scientists
Joseph Kerski
PTTC
... drawing F9 9.1,9.2 Zoom in and out Roll the mouse wheel backward and forward. Hold down Ctrl for a finer zoom. To switch direction of the mouse roll...
2007