Patterns of Sedimentation in Rhondda Beds of South Wales

Gilbert Kelling

AAPG Bulletin

... beds with a few silty bands, including isolated current (and rare symmetric) ripples, form the upper part of member C. Mottling and other bioturbation...

Cretaceous Strike-Valley Sandstone Reservoirs, Northwestern New Mexico

Donald G. McCubbin

AAPG Bulletin

..., unlike the others, appears to have been nearly symmetric in profile. As can be seen from the map, this depression was widest and deepest...

Computer Simulation Models of Salt Domes

James C. Howard

AAPG Bulletin

... of salt dome growth. Waveforms are symmetric around vertical axis. Amplitudes and wavelengths are expressed in dimensionless form. Vertical...

Continuous Sea-Floor Spreading in Red Sea: An Alternative Interpretation of Magnetic Anomaly Pattern

J. L. Labrecque , N. Zitellini

AAPG Bulletin

... are rapidly lost as ^sgrP increases. Remanent and present field directions are chosen to produce a symmetric profile ^Thgr = 0. nT = nanotesla. From...

Seismic Characteristics and Identification of Negative Flower Structures, Positive Flower Structures, and Positive Structural Inversion

T. P. Harding

AAPG Bulletin

... dipping strand. The fault architecture is not always symmetric. In some areas, the splays may diverge upward toward only one side of the structure...

Episodic Rifting and Subsidence in the South China Sea

Ke Ru , John D. Pigott

AAPG Bulletin

...------------------------------ anomalies extended over the crest of a large basement rise, interpreted as an extinct spreading ridge, the anomalies were not symmetric...

Permian and Triassic Sedimentation in the Northeastern Brooks Range, Alaska: Deposition of the Sadlerochit Group (1)

R. KEITH CROWDER

AAPG Bulletin

... thickness variation, the Kavik Member has a consistent internal organization. Sandstone interbeds within the member form a symmetric pattern in vertical...

Structural Geology and Evolution of the Mississippi Fan Fold Belt, Deep Gulf of Mexico (1)

PAUL WEIMER and RICHARD T. BUFFLER

AAPG Bulletin

.... Approximately 100 km to the northeast, the seismic profile of Figure 7 shows two anticlines; the basinal (southern) fold is a symmetric box fold...

Evolution of stratigraphic sequences in multisegmented continental rift basins: Comparison of computer models with the basins of the East African rift system

Juan Contreras, Christopher H. Scholz

AAPG Bulletin

... for the generated synthetic topography and 30 arc s (about 1 km) for the DEM. Only one fault was considered in this simulation and grew in a symmetric way...

Toward consistency in petroleum exploration: A systematic way of constraining uncertainty in prospect volumetrics

David G. Quirk, Richard G. Ruthrauff

AAPG Bulletin

...). (a) Symmetric distribution centered around the interpreter's most likely resource value. (b) Pseudoprobabilistic distribution where an upside tail has been...

Fault facies modeling: Technique and approach for 3-D conditioning and modeling of faulted grids

N. Fredman, J. Tveranger, N. Cardozo, A. Braathen, H. Soleng, P. Roe, A. Skorstad, A. R. Syversveen

AAPG Bulletin

... factor.Figure 7. (A) Unbiased Gaussian distribution across the fault envelope, which produces a symmetric, smooth displacement. (B) Biased Gaussian...

Structural evaluation of column-height controls at a toe-thrust discovery, deep-water Niger Delta

Olga V. Kostenko, Steve J. Naruk, Willem Hack, Manuel Poupon, Hans-Jurg Meyer, Miguel Mora-Glukstad, Charles Anowai, Margaret Mordi

AAPG Bulletin

...-verging low-amplitude fold; (b) cross section 2: symmetric pop-up structure without preferred vergence associated with two crosscutting thrust faults; (c...

Measuring and modeling fault density for CO2 storage plume-fault encounter probability estimation

Preston D. Jordan, Curtis M. Oldenburg, Jean-Philippe Nicot

AAPG Bulletin

... on measurements from the fault map. Each mode will also require a different unless the sweep area is radially symmetric. Equation 8 can then be used...

Unsteady-state diffusion modeling of gas in coal matrix for horizontal well production

Jian-Chun Guo, Ren-Shi Nie, and Yong-Lu Jia

AAPG Bulletin

... concentration in coal-matrix elements is spherically symmetric. The gas diffuses from the center of the matrix elements into the cleat network...

The concept of joint saturation and its application

Yunhui Tan, Thomas Johnston, and Terry Engelder

AAPG Bulletin

... saturation in rock, the shape of the joint-spacing histogram tends to migrate from skewed to symmetric (Rives et al., 1992). As joints infill to saturate...

Sedimentology, diagenesis, and reservoir characterization of the Permian White Rim Sandstone, southern Utah: Implications for carbon capture and sequestration potential

David Wheatley, Spencer Hollingworth, Peter Steele, and Marjorie Chan

AAPG Bulletin

... (e.g., contorted bedding or clastic pipes), (2) symmetric ripple laminations, (3) bioturbated (dominantly horizontal), and (4) bioturbated (dominantly...

Origin of bedding-parallel calcite “beef” layers in the Upper Jurassic Haynesville shale, northwestern Louisiana

L. Taras Bryndzia, Calum I. Macaulay, Alexander P. Litvinchuk, and Brian D. Monteleone

AAPG Bulletin

... line in the Raman spectrum, which is due to the symmetric CH4 bond stretching vibration, as referenced in Lu et al. (2007). We have adopted...

An enhanced method for evaluating the static connectivity of reservoirs using pressure coefficient–depth plots

Geng Qian, Haifeng Yang, Dayong Guan, Jinghan Wang, Junpei Yue, and Meng Zhao

AAPG Bulletin

.... Symmetry: The curve’s configuration is symmetric, despite the absence of data for the undrilled upper segment. Although the minor fault cuts through...

Tectonic Evolution of the Sanga Sanga Block, Mahakam Delta, Kalimantan, Indonesia; Ken McClay, Tim Dooley, Angus Ferguson, and Josep Poblet; Search and Discovery Article #30005 (2000)

Search and Discovery.com

Immature Aquatic Dipteran Impressions Preserved in Tufa: Eocene Fossil Lake, Wyoming

V. Leroy Leggitt, Mark A. Loewen

Rocky Mountain Association of Geologists

... of the dense bands show symmetric angular deformation of the tube wall that may be impressions of dipteran pupal/larval abdominal spines or nodes (Fig. 2B...

Pressure Transient Behavior of Unconventional Reservoirs: Combined Effect of Spatial Variation and Stress-Dependence of Formation Permeability

Ayon Kumar Das, Hassan Hassanzadeh

Unconventional Resources Technology Conference (URTEC)

... of the symmetric element considered. Here, we consider ku as the undisturbed formation permeability. In order to incorporate stress-sensitive effect...

The Internal Structure of Old Faithfull Geyser as Deduced from Physical Evidence

James H. Barbee

Earth Science Bulletin (WGA)

...’s geyser vent but found no difference in the readings taken at different locations. It is highly improbable that Reservoir B is radially symmetric...

Petrophysical Evaluation of Organic Richness and Brittleness of Shale for Unconventional Hydrocarbon Prospecting: A Case Study on Vadaparru Shale, Krishna Godavari Basin, India

Arijit Sahu, Milan Kanti Das

Unconventional Resources Technology Conference (URTEC)

... is applied here to obtain such relation as dependency of the two variables i.e. logarithmic resistivity and sonic must be symmetric for geological...

Exploration of Part of the Northwest Shelf of Australia (A Case History)

J. S. Thomas, E. O. Nestvold, A. Crostella

Southeast Asia Petroleum Exploration Society (SEAPEX)

... to be due to a Cretaceous — early Tertiary epeirogenic tectonism. In the Ashmore—Sahul area, late Tertiary symmetric folds are present...

Horizontal Completion Challenges in the Vaca Muerta Formation

Robert Fulks

Unconventional Resources Technology Conference (URTEC)

... results. Baseline Completion Design A symmetric geometric stage/perforation cluster completion design was chosen to established baseline performance...