An Explanation of the Logarithmic Spiral Plan Shape of Headland-Bay Beaches

Paul H. Leblond

Journal of Sedimentary Research (SEPM)

... of the wave fronts and depth gradients, causing refraction and retardation of the waves, must be brought into the model. We will thus model...

Seismological Discovery and Partial Detail of Vermilion Bay Salt Dome, Louisiana

E. E. Rosaire , O. C. Lester, Jr.

AAPG Bulletin

... was used in locating, planting, and firing the charges of explosives. The explorations were conducted by the usual method of refraction fans...

On the Issue of Barents-Kara Region Basement Age, Russian Arctic; #30314 (2014)

L. A. Daragan-Suschova, O. V. Petrov, and Yu. I. Daragan-Suschov

Search and Discovery.com

... finished”. Interpretation of results of both the correlation refraction method and DSS is invalid from the chronostratigraphic position. One must...

Multi-method geophysical characterization of Karst dissolution structures in an urban South Florida wellfield

Matthew J. Sirianni, Xavier Comas, William Wright, Matthew McClellan, Gregory J. Mount, Hugo Soto, Maria Macfarlane

International Meeting for Applied Geoscience and Energy (IMAGE)

..., or voids at varying depth intervals, which suggests the presence of very porous zones in the limestone bedrock. Figure 2: Generalized core log...

Baffin Bay: Small Ocean Basin Formed by Sea-Floor Spreading

C. E. Keen , M. J. Keen , D. I. Ross , M. Lack

AAPG Bulletin

... into northern Baf in Bay. The calculated sections along both lines of refraction measurements show significant variations in the depth to the crust-mantle...

Application of High-Resolution Seismic Reflection to Groundwater Resource

Search and Discovery.com

Amplitude enhancement of far-offset refractions via machine learning

Lurun Su, Han Wang, Jie Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... refractions using a physical model. Such methods are time-consuming, especially for 3D applications. In this study, we apply a machine learning method...

Abstract: Seismic Tomographic Imaging in Engineering Characterisation of a Site in Kuala Kangsar, Perak

Khairul Anuar Mohd. Nayan, R. J. Whiteley, Paul Famili

Geological Society of Malaysia (GSM)

... using curved ray tomography. Comparisons were made to the seismic refraction survey, geological logging, standard penetration test (SPT), piezometer...

Abstract: The Use of Seismic Refraction Method in Slope Failure Investigation

Khairul Anuar Mohd. Nayan, Rahman Yaccup, Abd. Rahim Shamsuddin, Umar Hamzah, Abd. Ghani Rafek

Geological Society of Malaysia (GSM)

...Abstract: The Use of Seismic Refraction Method in Slope Failure Investigation Khairul Anuar Mohd. Nayan, Rahman Yaccup, Abd. Rahim Shamsuddin, Umar...

GPR surveys reveal the subsurface geology of major sea turtle nesting islands in the Saudi waters of the Arabian Gulf

Sherif Hanafy, Korhan Ayranci, Rommel H. Maneja, Ace Vincent B. Flandez, Jinoy Gopalan, Diego F. Lozano Cortes

International Meeting for Applied Geoscience and Energy (IMAGE)

... that the seawater is near to the surface of the islands, which could decrease penetration depth and GPR data quality. To minimize this negative limitation, we used...

Possibilities for Seismic Refraction Surveys in Oil-Gas Exploration on Northeast Shelf of Sakhalin Island

V. E. Konov, K. F. Sergeyev, V. V. Argentov, S. K. Bikkenina, V. V. Zhigulev, E. G. Zhil’tsov

Petroleum Geology: A Digest of Russian Literature

... in these windows are 3.9-5.2 km/s and 5.2-6 km/s, respectively. Thickness of the oil window according to refraction survey is 2 to 5.5 km, and depth...

Abstract: Integrated Analysis and Inversion of 3D Refraction Travel Times; #90171 (2013)

Igor B. Morozov and Atul Jhajhria

Search and Discovery.com

...). After the depth model is inverted, statics are calculated by using the travel times of vertically-propagating rays. In our dataset, these statics were...

Data-driven near-surface Q compensation: A case study in Sichuan Basin of China

Xinyuan Feng, Yulian Zhao, Mingtu Xiao

International Meeting for Applied Geoscience and Energy (IMAGE)

... is obtained by the peak frequency shift method, and the near-surface Q compensation is carried out using a robust near-surface compensation algorithm, which...

URANIUM PROSPECTING: THE USE OF A MOBILE PERCUSSION DRILL FOR GEOCHEMICAL SAMPLING AND GEOLOGICAL MAPPING IN A GLACIAL OVERBURDEN ENVIRONMENT

Gilles Monteil

Saskatchewan Geological Society

... of undisturbed samples without using water, and permits the detection of very low level anomalies. This method also allows the collection of a bedrock sample...

Heavy Minerals in Till of Central Alberta

L. A. Bayrock

CSPG Bulletin

...-lying Cretaceous sandstone and shales which form the bedrock beneath most of the Alberta plains. One method used to determine the relative proportions...

PHOTOGEOPHYSICS ITS APPLICATION IN PETROLEUM EXPLORATION OVER THE GLACIATED PLAINS OF WESTERN CANADA

J. D. Mallard

Williston Basin Symposium

... Approximate Depth of Drift Cover: 300 feet Bedrock Below Drift: Tertiary sandstones and shales C Location: T9, RT3...

P-wave velocity inversion with average velocity analysis method

Yan Yuefeng, Jing Shaodong, Wang Yingwei, Zhong Chuhan

International Meeting for Applied Geoscience and Energy (IMAGE)

...P-wave velocity inversion with average velocity analysis method Yan Yuefeng, Jing Shaodong, Wang Yingwei, Zhong Chuhan P-wave Velocity Inversion...

Plate Kinematics of the Gulf of Mexico Based on Integrated Observations from the Central and South Atlantic

Erik A. Kneller, Christopher A. Johnson

GCAGS Transactions

... information including gravity (Sandwell and Smith, 1997) and magnetics (Maus et al., 2007), bedrock geology, seismic reflection and refraction, published...

Crustal Structure of South Florida Bank Derived from Ocean Bottom Seismometer Refraction Profiles: ABSTRACT

Joseph O. Ebeniro, William P. O'Brien, Jr., Subir K. Chatterjee

AAPG Bulletin

...Crustal Structure of South Florida Bank Derived from Ocean Bottom Seismometer Refraction Profiles: ABSTRACT Joseph O. Ebeniro, William P. O'Brien, Jr...

Resolution of Static Corrections in Sand Dune Regions: A Successful Case History

Search and Discovery.com

Abstract: Geostatistics and Gradient-Based Structure Coupling for Integration of Uphole Data with Tomography; #91204 (2023)

Ersan Turkoglu, Daniele Colombo, Ernesto Curiel, Hala Alqatari

Search and Discovery.com

... inversion quality and reduces the travel time residuals. Using multivariate kriging of the uphole data with the surface-consistent refraction-based 1D...

Regional Geology of Eastern Canada Offshore

Grey H. Austin

AAPG Bulletin

... and Bower, 1970). As there are no published refraction profiles, depth determinations are entirely dependent on magnetic work, and thicknesses...

ABSTRACT: Seismic Reflection Method Made in Oklahoma

Roderick Perez

Petroleum History Institute

... geophone locations were surveyed (100 ft intervals). The film records were timed out, and using the swinging arcs method of migration, the results were used...

Using Detailed Gravity Surveys to Delineate Buried Glacial Scours in Northern Michigan, Alan W. Hinks and Kevin J. Sullivan, #50204 (2009)

Search and Discovery.com

"Basement" to East Coast Continental Margin of North America

M. A. Mayhew

AAPG Bulletin

... reflectors on the published records, converting the variation in depth to these reflectors from seconds to kilometers using refraction profiles near...