Overly steep decays in airborne TEM data and their link to chargeability: example from the Howards East District, NT, Australia

Klara Steklova, Ken Lawrie, Esben Auken, Anders V. Christiansen, Gianluca Fiandaca

Petroleum Exploration Society of Australia (PESA)

.... Generally, 4th to 9th layer (corresponding to roughly 17 down to 50 metres below surface) appears to be the interval with chargeable layers...

Seismic Investigation of the Colorado Front Range Zone of Flank Deformation Immediately North of Golden, Colorado

Thomas L. Davis, Terence K. Young

Rocky Mountain Association of Geologists

...; varying from a few hundreds of feet at the basement level to a few tens of feet near the surface. (c) These faults usually exhibit down-to-the-basin...

Resolving geological complexity with legacy streamer survey, part 2: Application of DM FWI to sub-optimally acquired data

Nebojsa Pralica, Milos Cvetkovic, Seet Li Yong, Daniel Davies, Jon Rogers

International Meeting for Applied Geoscience and Energy (IMAGE)

... of DM FWI on 2D data, a specific example of a near-surface channel causing a disruption in the underlying geology was chosen. The Kirchhoff Pre-Stack...

Continent-Derived Vitric Mud and Mafic-Arc Rocks in Deep Kermadec Trench Diamictons

Peter F. Ballance , Harry A. Follas , Paul C. Froggatt , Eugene V. Mikhailic

Journal of Sedimentary Research (SEPM)

... the Mariana and Tonga arc systems Eocene or older arc lavas are either exposed or near the surface in the lower trench slope, where the rocks have...

Abstract: Limited Reflux Dolomitization in Restricted Upper Devonian (Leduc and Nisku) Carbonate-Evaporite Shelves, Southeastern Alberta, by W. Tan and E. W. Mountjoy; #90937 (1998).

Search and Discovery.com

Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)

Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto

Search and Discovery.com

... ABSTRACT The study area was a transition zone, located in middle Indonesia, and its near surface is soft weathered layer with many lower velocity...

PS-Wave Azimuthal Anisotropy: Benefits for Fractured Reservoir Management, by James E. Gaiser, #40120 (2004).

Search and Discovery.com

Subsidence, Crustal Structure, and Thermal Evolution of Georges Bank Basin

B. Ann Swift , D. S. Sawyer , J. A. Grow , K. D. Klitgord

AAPG Bulletin

... and ^phgr = porosity. Thus the near-surface sediments will have conductivities near 2.9 × 10-3 cal/cm sec °C, and more deeply buried sediment will approach...

Sediment transfer from shelf to deepwater slope: How does it happen?

Yuqian Gan, Flavio N. de Almeida, Júnior, Valentina M. Rossi, Ron J. Steel, Cornel Olariu

Journal of Sedimentary Research (SEPM)

... linkage or canyon capture), surface mud plumes (hypopycnal flow), dilute-suspension bottom-boundary-layer dispersal sometimes enhanced by waves or tide...

Clay Mineral Assemblages as Low Grade Metamorphic Geothermometers: Application to the Thrust Faulted Disturbed Belt Of Montana, U.S.A

Janet Hoffman, John Hower

Special Publications of SEPM

... Metamorphic grade index minerals in sand Arch Sweetgrass the sedimentary assemblages present indicate surface or near surface condi tions e g 1000 C...

Interrelationships of Deposition, Diapirism and Growth Faulting, Coastal Salt Basin

New Orleans Geological Society

... from studies of actual salt dome interiors--salt mines in near-surface piercement diapirs. Balk's pioneering studies (1949, 1953) were followed by those...

The Fault Trajectory Method: Estimating the Location and Dip of Controlling Faults Below Forced Folds; #41998 (2017)

Nathan Eichelberger, Alan Nunns, Richard Groshong, Ismael Yarbuh

Search and Discovery.com

... is an alternative to forward models can independently estimate the deep fault trajectory from the near-surface structural geometry with fewer kinematic assumptions...

Transformation of Resistivity to Pseudovelocity Logs

Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs

AAPG Bulletin

... are not compatible with the scale function or fresh interstitial water in the near surface has produced anomalously high resi tivities to yield large...

Abstract: Natural Gases in the Peace River Arch Belloy Field and the Alberta Deep Basin Kakwa Field: Isotope Depth Profiles; #90225 (2015)

Barbara J. Tilley, Ryan R. Miller, Karlis Muehlenbachs, and Bryan J. Szatkowski

Search and Discovery.com

..., maturity and compartmentalization of gas from the entire stratigraphic section from the Mississippian Debolt Formation up to the near surface. Comparisons...

Sedimentology and Depositional History of Coastal Lagoons, Northeastern Quintana Roo, Mexico

Michael J. Brady

New Orleans Geological Society

... by indigenous biota. Mg calcite of the near-surface sediment is mainly derived from breakdown of Melobesia which heavily encrusts Thalassia in the lagoon...

A Deep Water Trace Fossil Assemblage from the German Rancho Formation, Stump Beach, Salt Point State Park

Jack D. Farmer, Molly Fritz Miller

Pacific Section SEPM

... except near continen- tervals of hemipelagic sedimentatal margin where turbid layer tion. flow may dominate. Characteristics for recognizing...

Shortening Histories in Active Detachment Folds Based on Area-of-relief Methods

Ramon Gonzalez-Mieres, John Suppe

AAPG Special Volumes

... growth of Yaken and the late emergence are not well resolved because of limited near-surface seismic imaging. However, the available seismic imaging shows...

Deltaic Environments of Deposition

J. M. Coleman, D. B. Prior

AAPG Special Volumes

... bank; the shallow-sloping depositing side is termed the point bar. Maximum flow velocities are found near the steep concave bank, while lower velocities...

Abstract: Hydrogeochemical Prospecting for Natural Gas: The Geochemical Chimney, Shallow Groundwater Hydrogeology, and Interpretation of Near-Surface Data; #90172 (2014)

Matthew V. Kohlbecker, Dimitri Vlassopoulos

Search and Discovery.com

...Abstract: Hydrogeochemical Prospecting for Natural Gas: The Geochemical Chimney, Shallow Groundwater Hydrogeology, and Interpretation of Near-Surface...

The use of FWI in coal exploration

Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... for estimating elastic parameters (P and S wave velocities and density) from the inversion of a synthetic seismic dataset that was recorded over the surface...

Abstract: Canadas Ice Island: a platform for the characterization of the Arctic Ocean through stable isotope studies

Janet M. Dunphy

Atlantic Geology

... © 2015 Atlantic Geology ATLANTIC GEOLOGY with depth from 0.07% N ~d 0.6% C near the surface, to a maximum of0.13% N and2.5% Cat the bottom of the cores...

ABSTRACT: DEPTH IMAGING VELOCITY ESTIMATION CASE HISTORY IN A CHALLENGING AREA OF CALIFORNIA; #90014 (2003)

Fliedner, Moritz, Dimitri Bevc, Robert Clapp

Search and Discovery.com

... ESTIMATION CASE HISTORY IN A CHALLENGING AREA OF CALIFORNIA Two major issues that give rise to seismic imaging challenges in California are near-surface...

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

... for differing interpretations;and subsurfacefault trajectones can be qu~ckly accurately predicted from knowledge or near-surface fold geometry...

Carbonate Textures: Dissolution Fabrics

AAPG Special Volumes

.... Selective leaching of dolomite (de-dolomitization) has taken place in this rock. This is a common near-surface process and is aided by the presence...

Automated metallic pipeline detection using magnetic data and convolutional neural networks

Brett Bernstein, Yaoguo Li, Richard Hammack

International Meeting for Applied Geoscience and Energy (IMAGE)

....cageo.2015.09.015. Cooper, G., 2019, The downward continuation of aeromagnetic data from magnetic source ensembles: Near Surface Geophysics, 17, 101–107...