Geology of the Anacacho Formation in Southwest Texas

Douglas H. Wilson

South Texas Geological Society Special Publications

... Late Cretaceous mafic intrusions and extrusive seamounts that penetrated the Austin Chalk seafloor in a narrow zone between the waning Cretaceous Seaway...

Envelope full-waveform inversion of marine seismic data

Kai Xiong, David Lumley, Wei Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

..., where there is a blue low-velocity hole (artifact) around x=89 km below the seafloor. We can observe the corresponding cycle-skipping issue on shot...

Fluid Flow in the Offshore Monterey Bay Region

H. Gary Greene, Norman Maher, Thomas H. Naehr, Daniel L. Orange

Pacific Section of AAPG

... of the seafloor offshore Monterey Bay region is extensive. To date 16 major active and ancient, or dormant, seep sites have been identified and many...

Potential Unconventional Gas Resources in the Lord Howe Rise Region

Philip Symonds, Howard Stagg, Ingo Pecher, Neville Exon, Sabrina Van de Beuque, Irina Borissova, Jean-Marie Auzende

Petroleum Exploration Society of Australia (PESA)

...., 1996). This extensional terrane was fragmented and dispersed dur• ing Campanian to Eocene (85-52 Ma) seafloor spread• ing in the Tasman Basin (Gaina et...

Characterisation of focused gas hydrate accumulations from the Pegasus Basin, New Zealand, using high-resolution and conventional seismic data

Andrew R. Gorman, Patrick T. Fletcher, Dylan Baker, Douglas R.A Fraser, Gareth J. Crutchley, Stuart A. Henrys

Petroleum Exploration Society of Australia (PESA)

... more fully: (1) vertical transport into the shallow seafloor driven by overpressure and (2) inclined transport upward along dipping permeable beds...

Manganese-Nodule Structures: Relation to Nodule Origin--Summary: Minerals

J. Andrews, S. Margolis

AAPG Special Volumes

... reference to palagonitization: Pacific Science, v. 25, p. 301-307. End_of_Record - Last_Page 385------- Manganese nodules, as seen on the seafloor...

Sedimentology and Acoustic Mapping of Modern Rhodolith Facies on a Non-Tropical Carbonate Shelf (Gulf of California, Mexico)

Steffen Hetzinger, Jochen Halfar, Bernhard Riegl, Lucio Godinez-Orta

Journal of Sedimentary Research (SEPM)

.... The acoustic seafloor classification distinguished four acoustic facies, which were confirmed by ground-truthing: an outer-shelf silt facies, a biogenic sand...

Abstract: Evolution of Submarine Gullies over Geologic Time: Constraining Modern Analogs with Shallow 3D Seismic Data, Taranaki Basin, New Zealand; #90235 (2015)

Lauren E. Shumaker, Stephan A. Graham, and Zane R. Jobe

Search and Discovery.com

... are ubiquitous on the modern seafloor on both passive and active continental margins. However, the processes dictating gully formation and the role...

Sedimentary Filling of the Pearl River Mouth Basin and Its Response to the Evolution of the Pearl River; #50736 (2012)

Lei Shao, Xiong Pang, and Gongcheng Zhang

Search and Discovery.com

... in the northern South China Sea, indicating a significant provenance change. This abrupt change coincided with a series of events including a seafloor spreading...

Mud Volcanoes on the Seafloor of the Colombian Caribbean Sea: Undesirable Lumps or Exploration Tools ?

G.Y. Ojeda, R. Hernandez, I.D. Olaya

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...Mud Volcanoes on the Seafloor of the Colombian Caribbean Sea: Undesirable Lumps or Exploration Tools ? G.Y. Ojeda, R. Hernandez, I.D. Olaya Mud...

The South China Sea Enigma

Rasoul Sorkhabi

GEO ExPro Magazine

... (2013) Examination of seafloor magnetic lineations indicates that the SCS oceanic basin opened between magnetic anomalies (polarity chrons) 11 and 5C...

Basin-scale fluid-flow models of the McArthur River mineral system: constraints from geochemistry, geophysics and sequence stratigraphy

Peter Schaubs, Heather Sheldon, Teagan Blaikie, Marcus Kunzmann, Susanne Schmid, Sam Spinks

Petroleum Exploration Society of Australia (PESA)

... sandstone aquifers and returning to the seafloor via the Emu Fault, a long-lived structure that forms the eastern boundary of the Batten Fault Zone (Figure...

Seismic Technology A Boon for Inquisitive Minds

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... compan ies which has developed substantia l seafloor technology. We were the only company for years that cou ld work in water depths of more than 300 m...

Deep Sea Stratigraphy: Seismic Reflections and Sedimentation in the Pelagic Equatorial Pacific

Thomas H. Shipley, Larry A. Mayer, and Edward L. Winterer

AAPG Special Volumes

... profile with time from seafloor. End_Page 226------------------------ Figure 2. Seismic profile between DSDP sites 573 and 574, between shotpoints...

Biological influences on seafloor carbonate precipitation

Kristin D. Bergmann, John P. Grotzinger, Woodward W. Fischer

PALAIOS

...Biological influences on seafloor carbonate precipitation Kristin D. Bergmann, John P. Grotzinger, Woodward W. Fischer PALAIOS, 2013, v. 28, p. 99...

Gas Hydrates: Part I: Burning Ice

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... on the surface of the ocean in polar regions. But there is another, higher-pressure form of ice trapped at and beneath the seafloor that is far less familiar...

Mud Volcanoes in the Gulf of Mexico: A Mechanism for Mixing Sediments of Different Ages in Slope Environments

Barry Kohl , Harry H. Roberts

GCAGS Transactions

.... 45 (1995), The extrusion of older, unconsolidated sediments onto the seafloor during the Quaternary is one explanation for frequent occurrences...

Understanding Planet Earths Processes: Transformative, Real-Time, Cabled Ocean Observatory, North-East Pacific (WHERE/NEPTUNE Canada)

Search and Discovery.com

... among volcanic, tectonic, hydrothermal and biological processes will be quantified where new volcanic seafloor is created at the western edge of the Juan...

Abstract: Source to Sink (S2S) Control on the Deepwater Depositional Systems in Gulf of Papua: Insights from Seafloor Morphology, Acoustic Facies and Turbidite Sand Provenance; #90172 (2014)

Erlangga Septama, Samuel J. Bentley

Search and Discovery.com

...Abstract: Source to Sink (S2S) Control on the Deepwater Depositional Systems in Gulf of Papua: Insights from Seafloor Morphology, Acoustic Facies...

Relation Between Volcanism, Tectonism, and Hydrothermal Activity Along the Mid-Ocean Ridges; #40523 (2010)

Susan E. Humphris

Search and Discovery.com

... manifestation of convection of seawater through the oceanic crust and water-rock reactions that produce hot, hydrothermal fluids that discharge at the seafloor...

Application of Geophysical Technology Assemblage in Evaluation of Deepwater Gas Fields in the Northern South China Sea; #20377 (2016)

Min He, Jun Shen, Ming Zhu, Jun Liu

Search and Discovery.com

... in this area. However, because of complicated seafloor topography and reservoir inhomogeneity, it is difficult to precisely image, evaluate...

Gas Hydrate Dissociation and Excess Pore Pressure in Marine Sediment, by Wenyue Xu; #90035 (2004)

Search and Discovery.com

Deep-Water Channel Run-Out Length: Insights from Seafloor Geomorphology

Jacob A. Covault, Eitan Shelef, Miles Traer, Stephen M. Hubbard, Brian W. Romans, Andrea Fildani

Journal of Sedimentary Research (SEPM)

...Deep-Water Channel Run-Out Length: Insights from Seafloor Geomorphology Jacob A. Covault, Eitan Shelef, Miles Traer, Stephen M. Hubbard, Brian W...

Effects of the coupling between slope morphology and bottom currents on flow erosion and sedimentation at the Dongsha Continental Margin, South China Sea

Hairong Wang, Chengqian Yu, Zhipeng Huo, Hongfang Gao, Wen Jiang

Journal of Sedimentary Research (SEPM)

...), producing a funneling effect and forming strong erosion grooves or strips, remnant seamounts, and large seafloor coarse debris dunes. The concavity...

X-Ray Computed Tomography of Macroscale Variability in Sediment Physical Properties, Offshore Louisiana

Thomas H. Orsi, Aubrey L. Anderson

GCAGS Transactions

... a density-calibrated X-ray computed tomography (CT) scanner to quantify macrostructure-physical property relationships in seafloor sediments from...