Geology and Offshore Resource Potential of the New Ireland - Manus Region--A Synthesis

N. F. Exon, M. S. Marlow

Circum Pacific Council Publications

... the surface. Flat areas farther north are filled with what are assumed to be near surface lava flows (Figure 7). S.P. Lee profile 424, west of Manus Island...

Navigating full-waveform inversion success in Mexico with complex geology: Shallow-water and land case studies

Wei Kang, Federico Fenoglio, Liubov Mulisheva, Pavel Vasilyev, Luxin Zhang, Abdalla Abouelela, Xin Cheng, Denes Vigh, Silvino Dominguez Garcia, Alejandro Cabrales, Alfredo Vazquez Cantu

International Meeting for Applied Geoscience and Energy (IMAGE)

...). Firstly, a stable and representative wavelet is critical to wavefield simulation and the convergence of FWI. Due to the source effect and near-surface...

Central Texas Coast Sedimentation: Characteristics of Sedimentary Environment, Recent History, and Diagenesis: PART 2

Francis P. Shepard, David G. Moore

AAPG Bulletin

... a steady progressive change down the bays, varying according to the increasing salinity in the direction of the open Gulf. Near the inlets the faunas...

Biosedimentary Facies of a Subtropical Microtidal Estuary--An Example from Southern Brazil

Catia F. Barbosa , Kenitiro Suguio

Journal of Sedimentary Research (SEPM)

... from inner to outer estuary, whereas near the surface, salinity remained constant at 0o/oo. The average annual rainfall in the area is greater than...

Controls on organic matter distributions in Eocene Lake Uinta, Utah and Colorado

Ronald C. Johnson, Tracey J. Mercier, Justin E. Birdwell

Rocky Mountain Association of Geologists

... in R-0 zone (there is no laterally transported material in coreholes examined), (4) hypothesized circulating currents in the near-surface layer...

Abstracts: Seismic Anisotropy of the Marcellus Shale: Feasibility Study for Fracture Characterization; #90173 (2015)

James Gaiser, Alvaro Chaveste, Mary Edrich, Tony Rebec, and Richard Verm

Search and Discovery.com

...-azimuth dataset to invert traveltime information for fracture characterization. These data are acquired in Pennsylvania, USA, in a complex near-surface...

Insights into Salinity Variations for Waterfloods, Frac-Fluids and Drilling Mud in Clay-Hosted Pores using Molecular Simulations

Hao Xiong, Deepak Devegowda

Unconventional Resources Technology Conference (URTEC)

... adjacent to the lower surface which corresponds to a tight layer of Na+ cations near the lower clay surface and Cl- anions distributed over the Na+ layer...

Geologic Evolution of a Pliocene-Pleistocene Salt-Withdrawal Minibasin: Eugene Island Block 330, Offshore Louisiana

Laurel L. Alexander , Peter B. Flemings

AAPG Bulletin

... characteristics of near-surface sediments, upper continental slope of northern Gulf of Mexico: Geo-Marine Letters, v. 10, p. 200-208. Bryant, W. R., J. R...

Biological Pumping Upwards of the Coarse Fraction of Deep-Sea Sediments

I. N. McCave

Journal of Sedimentary Research (SEPM)

... is Unit 1, a 4-cm-thick, soft brown mud, the HEBBLE Mud. Spatial Distribution of Gravel near the Surface Many X-radiographs of subsamples taken in flat...

Organic Geochemical, Isotopic, and Seismic Indicators of Fluid Flow in Pressurized Growth Anticlines and Mud Volcanoes in Modern Deep-water Slope and Rise Sediments of Offshore Brunei Darussalam: Implications for Hydrocarbon Exploration in Other Mud- and Salt-diapir Provinces

John K. Warren, Alwyn Cheung, Ian Cartwright

AAPG Special Volumes

... and near an eroded collapsed surface overlying a ramping thrust structure (Figure 7a). A homogeneous layer of weak amplitude (hydrate cemented...

Geophysical Framework of Northern End of Gulf of California Structural Province

Shawn Biehler , Robert L. Kovach , Clarence R. Allen

AAPG Special Volumes

..." and is not pervasive over the floor of the entire valley. Basement arrivals from the various profiles in this region show seismic velocities varying from 5.2 km...

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... conductivity profile. Porosity generally decreases with depth from between 20-40% near the surface in the Duchesne River and Uinta formations to values...

Seismic Investigation of the Big Pie Structure, A Probable Laccolithic Intrusion, Routt County, Colorado

John W. Hickenlooper, Jerry P. Williams

Rocky Mountain Association of Geologists

... are of excellent quality, but the portable data range from good to poor. Surface and near-surface formations, along with underlying intrusives, limit...

1.3 Igneous Structures: The Little Murray Ridge

R. S. White

AAPG Special Volumes

.... This reduction in magnitude of the folding near the surface is also seen on all the other crossings of the frontal fold along the Makran margin (White...

Statistical depth imaging through complex cluttered near-surface with path summation

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the presence of a complex near-surface scattering layer. We characterize such layer as a random, cluttered medium that remains unknown but whose...

Advancing Geophysics Through Cooperation

Josef Paffenholz

GEO ExPro Magazine

... and models karst structures and the extreme contrasts between unconsolidated near-surface sediments and bedrock, which often obscure deeper imaging...

Well Logs Invaluable to Interpreting Limited-Quality Seismic of Complex Structures, by Bob Hardage, #40385 (2009).

Search and Discovery.com

New Technology to Acquire, Process, and Interpret Transient EM Data; #41579 (2015)

Anton Ziolkowski, Richard Carson, David Wright

Search and Discovery.com

...-resistivity section, for instance, as shown in Figure 4. Features include a conductive layer in the near surface that ends abruptly at about CMP 1300...

Changes in soils and terrestrial landscapes of the Appalachian Basin (Conemaugh, Monongahela, and Dunkard groups), U.S.A., at the onset of the late Paleozoic climate transition

Daniel I. Hembree

Journal of Sedimentary Research (SEPM)

... with rhizoliths and in variegated near-surface and subsurface horizons. Some were poorly developed and contained organic carbon. Others showed evidence...

Clastic Pipes and Soft-Sediment Deformation of the Jurassic Carmel Formation, Southern Utah, U.S.A.: Implications For Pipe Formation Mechanisms and Host-Rock Controls

David Fairchild Wheatley,, Marjorie Ann Chan

Journal of Sedimentary Research (SEPM)

.... These pipe examples are key paleoenvironmental indicators, which give valuable information about subsurface fluids and the presence of a near-surface...

The Wave-Dominated William River Delta, Lake Athabasca, Canada: Its Morphology, Radar Stratigraphy, and History

Derald G. Smith, Harry M. Jol, Norman D. Smith, Raymond A. Kostaschuk, Cheryl M. Pearce

Special Publications of SEPM

.... All stated dip angles have been corrected to include migration. The common-midpoint technique was used to calculate the near-surface average velocity...

Geology of the Ahuas Area in the Mosquitia Basin of Honduras: Preliminary Report

R. A. Mills , R. Barton

AAPG Bulletin

... on a relative basis. Velocities from the Embarcadero well sonic log and check-shot survey probably are accurate. Near the total depth of both wells...

Bentonite Mining Near Kaycee, Wyoming

Thomas Thorson

Wyoming Geological Association

...Bentonite Mining Near Kaycee, Wyoming Thomas Thorson 1976 253 256 Historical Note Bentonite deposits on the Eastern flank of the Big Horn Mountains...

NEOICHNOLOGY OF SEMIARID ENVIRONMENTS: SOILS AND BURROWING ANIMALS OF THE SONORAN DESERT, ARIZONA, U.S.A.

DANIEL I. HEMBREE, JON J. SMITH, ILYA V. BUYNEVICH, BRIAN F. PLATT

PALAIOS

... vertically and laterally in complex, branching networks. At the C horizon, most of the fine roots extend laterally along the surface, but some do penetrate...

Salt Structure of Jefferson Island Salt Dome, Iberia and Vermilion Parishes, Louisiana

Robert Balk

AAPG Bulletin

... in impure salt, at L 4. Surface is vertical plane across layer, and shows in cross section one large and several smaller fragments of halite-cemented...