Regional detection and monitoring of injection-induced seismicity: Application to the 2010–2012 Youngstown, Ohio, seismic sequence

S. G. Holtkamp, M. R. Brudzinski, and B. S. Currie

AAPG Bulletin

... record each of the template earthquakes (Figure 13). We include the local short period seismic station YSUO, but the absolute location does not change...

The Deep Crustal Structure of the Wilkes Land Continental Margin

J. R. Childs, H. M. J. Stagg

Circum Pacific Council Publications

... of the reconstruction method, probably because of the great distance between the survey area and base station location. However, comparison of the magnetometer base...

The Composition, Structure and Erodability of Subtidal Mats, Abaco, Bahamas

A. Conrad Neumann, Conrad D. Gebelein , Terence P. Scoffin

Journal of Sedimentary Research (SEPM)

..., and the Sound (fig. 2)--were selected for more intensive and detailed examination and experimentation. FIG. 2. Location of specific study areas. Station...

Part 3: Support Data (A)

Francis P. Shepard, Neil F. Marshall, Patrick A. McLoughlin, Gary G. Sullivan

AAPG Special Volumes

... in an easterly direction but the shallow station shows net upcanyon flow whereas the deeper ones show net downcanyon flow. The effect of the northwest wind...

Geometric Models of Listric Normal Faults and Rollover Folds (1)

WILLIAM F. DULA, JR.

AAPG Bulletin

... and shapes of the master-fault segments interpreted fr m offshore Norway and Gulf of Mexico seismic lines. The shear angle required in the inclined-shear...

Seismic Refraction Studies in Gulf of California

Richard P. Phillips

AAPG Special Volumes

..., and the other, the R/V Horizon, was the shooting ship. In shallow water the receiving ship is anchored at the receiving station, whereas in deeper water...

Challenges in Imaging the Deep Seabed: Examples from Gulf of Mexico Cold Seeps

Carol B. Lutken, Marco D’Emidio, Leonardo Macelloni, Mariangela Lodi, Michela Ingrassia, Martina Pierdomenico, Vernon Asper, Arne Diercks, Max U. Woolsey, Roy Jarnagin

GCAGS Transactions

...; and 5) instrument location/recovery. Using coarser resolution surveying for regional studies, then focusing higher resolution surveys on areas...

Abstract: Seismic Data Processing in Anisotropic Media, by V. Celis; #90951 (1996).

Search and Discovery.com

Abstract: How to Improve Location Accuracy When Dealing with Artifacts in Microseismic Event Locations; #90187 (2014)

N. Verkhovtseva

Search and Discovery.com

... thin layers with very high velocities do not have any sufficient effect on arrival times while they can cause errors in the event locations if modeled...

Environmental and Geophysical Interpretation of Heat-Flow Measurements in Black Sea: Structure

Albert Erickson , Gene Simmons

AAPG Special Volumes

... of the geothermal flux. In addition, the blanketing effect of the thick low-thermal-conductivity sediments in the Black Sea has further reduced the flux...

Concentration Changes of Ca, Cu, Li, Mg, K, Na, and Sr in the Hudson River, New York: NOTES

Burton P. Fabricand, Eugene S. Imbimbo, Mary E. Brey

Journal of Sedimentary Research (SEPM)

... River waters were made by Durum, Heidel, and Tison (1960), who sampled one location at four different times over a one-year period. This work formed...

Abstract: Near-surface Issues in TTI Wave Equation Migration from Topography; #90171 (2013)

Chuck Ursenbach, Richard A. Bale, and Samuel H. Gray

Search and Discovery.com

... = 0 component of the wavefield, so the correct static shift is obtained, while the errors in non-zero kh components typically have negligible effect...

A Practical Guide to the Construction of Bivariate Scatter Diagrams

Richard B. McCammon

Journal of Sedimentary Research (SEPM)

... for eliminating the visual bias in bivariate scatter diagrams. Bias is eliminated if the reduced major axis is plotted at an angle of 45° or else the scales...

Graphical Methods of Calculation in Interpretation in Work with the Torsion Balance: DISCUSSION

Donald C. Barton

AAPG Bulletin

.... The difficulty envisaged by Heiland practically does not exist. The probable error in field observations is as large as, or larger than, the errors produced...

Torsion-Balance Survey of Esperson Salt Dome, Liberty County, Texas

Donald C. Barton

AAPG Bulletin

... to the South Liberty-Dayton salt dome, and (3) two maxima, one of them due to the interference effect of the Esperson and South Liberty-Dayton minima...

Chapter 12: Microseismic Monitoring in Early Haynesville Development

Peter M. Duncan, William B. Barker, Leo Eisner, Peter G. Smith, Kevin Smith, Sherilyn Williams-Stroud

AAPG Special Volumes

.... 100 ft (30.48 m). Figure 4a. Aerial photo (Google Earth) of the Blacksmith array. Each blue dot represents a station location. The array...

Abstract: Comparative Study on 2D Microseismic Source Location with Synthetic Seismograms Recorded by Borehole- and Surfacereceiver Arrays; #90224 (2015)

Anton Biryukov, Simon G.E. Harvey, and Giovanni Grasselli

Search and Discovery.com

...-sensor position on the RTM source location. For the given model characteristics, it was found that the effect of noise was negated for array sensor...

Shoreline and Beach Changes on Honeymoon Island, Pinellas County, Florida, 1967-1971

Alexandra P. Wright , Edward O'Donnel

GCAGS Transactions

... on the foreshore, and (3) study changes in beach morphology. FIGURE 1. Location of Honeymoon Island, Pinellas County, Florida showing filled area and dredged area...

From geophone arrays to point receivers: Implications for sensor and land survey design

Nicolas Goujon, Tom O’Toole

International Meeting for Applied Geoscience and Energy (IMAGE)

... does not achieve this objective as the improved sensitivity only benefits system noise and has no effect on other signal perturbations (e.g., ambient...

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... of a surface receiver to the bottom of LVL by downward continuation. In order to determine the location of 'virtual source' or 'virtual receiver', angle θ...

Sedimentation Rates and Recent Sediment History of Lakes Ontario, Erie and Huron

A. L. W. Kemp , T. W. Anderson , R. L. Thomas , A. Mudrochova

Journal of Sedimentary Research (SEPM)

... (Lewis, 1966, 1969; Thomas et al., 1972, 1973). Station 10 represents a nearshore location on the fringe of the silty clay offshore sediments (Fig. 1...

Gravity Survey of the Northern Channel Islands

J. D. Rietman, J. K. Aldrich

Pacific Section of AAPG

... Field techniques.—The gravity data were taken with a late model La Coste-Romberg gravimeter. The reading accuracy for each station was ± .01 milligal...

Persistent Microseismic Monitoring Using Robust Permanent SADAR Arrays

Kevin D. Hutchenson, Jason Jennings, Elige B. Grant, Derek Quigley, Jonathan Yelton, Paul A. Nyffenegger

Carbon Capture, Utilization and Storage (CCUS)

... at Carbon Management Canada’s Field Research Station (FRS) proving ground between 9m-19m depth to demonstrate passive and activesource seismic...

GRAVITY STUDIES OF THE CRAZY MOUNTAINS AND THE WEST FLANK OF THE BEARTOOTH MOUNTAINS, MONTANA

WILLIAM E. BONINI, WILLIAM N. KELLEY, JR., DANIEL W. HUGHES

Montana Geological Society

... foot traverses in the Crazy Mountains. All data were based on the Gulf-Wisconsin Pendulum Station at Billings, Montana (Woollard and Rose...

Geophysical Survey and Reconnaissance Geology of the Valle De San Felipe Area, Baja California, Mexico

Robert G. Slyker

Pacific Section of AAPG

... maximum cumulative error that might be introduced into the gravity survey due to instrument, terrain calculation, location, and elevation errors is 2.0...