Estimate near-surface velocity with reversals using deep learning and full-waveform inversion

Yong Ma, Xu Ji, Weiguang He, Tong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

... arrivals simulated with head-wave raytracing. A total of 1000 velocity profiles are generated with different layer thicknesses and values...

Eolian Sand Control

Richard C. Kerr, John O. Nigra

AAPG Bulletin

...-all surface movement is caused (1) by the pushing effect of the wind on the exposed face of each grain, (2) by the impingement of rebounding grains...

Calcrete Deposits and Quaternary Sediments, Edel Province, Shark Bay, Western Australia

James F. Read

AAPG Special Volumes

... is shown in inset, bottom left; location of Edel province in Shark Bay is shown in inset, top right. Area outlined (lower right) is Baba Head-Landing Beach...

Hybrid Event Beds Generated By Local Substrate Delamination On A Confined-Basin Floor

Marco Fonnesu, Marco Patacci, Peter D.W. Haughton, Fabrizio Felletti, William D. McCaffrey

Journal of Sedimentary Research (SEPM)

... beneath submarine gravity flows: a kinematic boundary layer approach: Geological Society of London, Journal, v. 173, p. 46– 58. Casnedi, R., 1982...

Sediments of Lower Chesapeake Bay, With Emphasis on Mass Properties

W. Harrison, M. P. Lynch, A. G. Altschaeffl

Journal of Sedimentary Research (SEPM)

...%), and mixed-layer minerals (20%). Gravity cores of the surficial 0.9 meter exhibited these ranges of values for the following mass and related physical...

Frontmatter, Table of Contents, Road Logs, References: West Texas Geological Society: Geology of the Delaware Basin and Field Trip Guidebook

John E. Adams, Glen L. Evans, Berte R. Haigh, Jerry Covington, Hugh N. Frenzel, Wallace E. Pratt, Charles D. Vertrees

West Texas Geological Society

... Road Y. Keep right. This road circles around the north side of these hills to the head of Seven Heart Gap. The road to the left circles these hills...

Capillary Control of Free Phase Oil Migration in the Shallow Subsurface: Review with Case Histories

L. G. Bruce, C. Q. Biagi

Environmental Geosciences (DEG)

... that control how much pressure head is necessary for LNAPL to overcome capillary pressures are (1) the interfacial tension (σ) between the wetting fluid...

Muddy — Turner Field Trip

Dudley D. Rice, Charlie Gaskill

Earth Science Bulletin (WGA)

... beneath the thick shoreface deposit of the Rozet Member reveals the presence of a layer of rounded pebbles composed of reworked dahllite concretions from...

Abstract: Mapping Bay-Head Deltas Within Incised Valleys as an Aid for Predicting the Occurrence of Barrier Shoreline Sands: An Example From the Trinity/Sabine Incised Valley

Antonio B. Rodriguez, John B. Anderson

GCAGS Transactions

...Abstract: Mapping Bay-Head Deltas Within Incised Valleys as an Aid for Predicting the Occurrence of Barrier Shoreline Sands: An Example From...

SUBARCTIC RHODOLITH BEDS PROMOTE LONGEVITY OF CRUSTOSE CORALLINE ALGAL BUILDUPS AND THEIR CLIMATE ARCHIVING POTENTIAL

WALTER ADEY, JOCHEN HALFAR, ALEXANDER HUMPHREYS, THEW SUSKIEWICZ, DAVID BELANGER, PATRICK GAGNON, MICHAEL FOX

PALAIOS

... a characteristic seaweed flora that includes an extensive high-magnesium calcium carbonate basal layer of crustose coralline red algae. The thickest (10–40...

Tectonic Evolution of Submarine Canyons Along the California Continental Margin

H. Gary Greene, Samuel H. Clarke Jr., Michael P. Kennedy

Special Publications of SEPM

... others canyons are formed by fault displacement have been modified during their development by faulting In some places ocean currents and waves as well...

The Effect of Gravitational Compaction on the Structure of Sedimentary Rocks

Hollis D. Hedberg

AAPG Bulletin

...The Effect of Gravitational Compaction on the Structure of Sedimentary Rocks Hollis D. Hedberg 1926 1035 1072 10 11. (November) Many oil field...

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

..., is a lobate sand body 9 km long by 8 km wide by 15–22 m thick. Mean lake elevation is 209 m and fluctuates ± 1.5 m (1810–2000). Periodic strong winds, waves...

The Abenaki Formation, Nova Scotia Shelf, Canada -- A Depositional and Diagenetic Model for a Mesozoic Carbonate Platform

Leslie S. Eliuk

CSPG Bulletin

... dipping at various angles or curved. Up to five distinct layers of cloudy, isopachous, fibrous cement (some cement radiaxial) with final layer clearest...

Memorial: Silas Christian Brown (1912-1987)

Sherman A. Wengerd, Walter J. Osterhoudt

AAPG Non-Technical and Memorials

...." Buzz Brown went to New Delhi, India, to head the United Nations organization to outline potential fresh-water basins in India and the western...

ABSTRACT The Stratigraphic and Sedimentological Evolution of the Mahim, Daman and Mahuva Formation Reservoirs of the Tapti Fields: Tidally-Influenced Deposition in an Oligo-Miocene Tropical Estuarine Embayment on the Continental Shelf of Western India, #90102 (2010)

Sourav Saha, Stuart D Burley, Stuart Gowland, Andy Thurlow, Andy Taylor

Search and Discovery.com

... – the inner gulf This depositional system developed at the head of the gulf which is highly dynamic in nature (Fig. 2A). It reflects interaction between...

Road Log for Rocky Mountain Association of Geologists Colorado Springs Conference, October 9-10, 1978

John H. Lewis

Rocky Mountain Association of Geologists

..., intersection of Pikes Peak and Cascade Avenues Colorado Springs, Colorado. HEAD SOUTH on Cascade Avenue. Louviers Alluviuril comprises the substrate...

Evolution of an Allochthonous Salt System, Southern Mars-Ursa Minibasin, Northern Gulf of Mexico

Angela Pell, Jeffrey A. Nunn

GCAGS Transactions

.... External geometries identified in the study area include: wedge, layer and trough. Fifty-nine faults are mapped in basin and suprasalt strata and four...

Depositional settings and palynofacies assemblages of the Upper Triassic fluvio-deltaic Mungaroo Formation, northern Carnarvon Basin, Western Australia

Joe Scibiorski, Daniel Peyrot, Simon Lang, Tobias H.D. Payenberg, Adam Charles

Journal of Sedimentary Research (SEPM)

... Petroleum Production and Exploration Association, Journal, v. 56, p. 143– 158. Ghasemi-Nejad, E., Head, M.J., and Naderi, M., 2009, Palynology...

Cemented Sandstone Slabs of the Chandeleur Islands, Louisiana

James P. Morgan, Robert C. Treadwell

Journal of Sedimentary Research (SEPM)

... the northwest, west or southwest, waters of the Chandeleur Sound are forced across the mangrove marsh toward the elevated beach ridge. A hydraulic head...

Abstract: Depositional and Diagenetic History of the Upper Permian Beefkeeper Formation, Woodada Gas Field, Onshore Northern Perth Basin, Western Australia

Jirka Just

Petroleum Exploration Society of Australia (PESA)

... production occurred; and storm-dominated cond itions of erosion and redepos it ion by storm waves and storm ebb-currents . The storm-d eposited strata...

Orientation of Orthoceracone Cephalopods at Lemont, Illinois: NOTES

David Krinsley

Journal of Sedimentary Research (SEPM)

... show less definite arrangement with two directions predominating at right angles to one another. Cross waves or low velocity currents are regarded...

Stratigraphic architecture within delta plain deposits in the Upper Cretaceous Neslen and Farrer Formations, Book Cliffs, Utah

Jostein M. Kjærefjord, Camilla Thrana, and Scott Bullimore

AAPG Bulletin

...-marine realms where sediment forms bay head deltas or mouth bars, which are then completely or partly redistributed by tides and waves. Within any...

O Earth Scientists, What Changes Hath Thou Seen? by James W. Richards, #70031 (2007).

Search and Discovery.com

Flow and Salinity Patterns in the Low-Transmissivity Upper Paleozoic Aquifers of North-Central Texas

Jean-Philippe Nicot, Yun Huang, Brad D. Wolaver, Ruth A. Costley

GCAGS Journal

... is conductivity from specific-capacity tests, B is the thickness of the unit (here a model layer) that decreases to 0 at the onset of the outcrop, Bss...