Paper Search Console

Home Search Page About Contact

Journal Title

Title of Journal: Pure appl geophys

Search In Journal Title:

Abbravation: pure and applied geophysics

Search In Journal Abbravation:

Publisher

Birkhäuser-Verlag

Search In Publisher:

DOI

10.1016/0162-3109(88)90016-1

Search In DOI:

ISSN

1420-9136

Search In ISSN:
Search In Title Of Papers:

Comparison between a Regional and Semiregional Cr

Authors: R Mjelde S Kodaira P Digranes H Shimamura T Kanazawa H Shiobara E W Berg O Riise
Publish Date: 2014/03/16
Volume: 149, Issue: 4, Pages: 641-665
PDF Link

Abstract

—Semiregional Ocean Bottom Seismograph OBS data acquired in the central and northern part of the Vøring Basin midNorway margin have been modeled by use of 2D raytracing The semiregional model derived from the study of twentyfive OBSs deployed along a 120km long profile is compared with a regional model consisting of five OBSs from the same profile The semiregional model is somewhat more detailed than the regional model due to the considerably closer receiver spacing The overall geometry and velocity distribution of the two models are remarkably similar however proving that the regional procedure with large OBS spacing provides a reliable regional model¶Intrusions of sills related to early Tertiary continental rifting and break up are important at intermediate and deep sedimentary levels 2–10 km below sea floor in most parts of the area The semiregional modeling suggests that one of the deepest sills extends much further east and is substantially thicker locally more than 500 m than indicated in the regional model Another important difference is a highvelocity body within the upper crystalline crust at 11–12 km depth in the NW part of the area indicating that the closer OBS spacing in the semiregional modeling allows detection of local intracrustal intrusions Local differences are also inferred in the lower crust at about 20 km depth a structure is inferred within the lower crust from wideangle reflections This might suggest that the highvelocity lower crustal layer interpreted as magmatic underplating consists of a mixture of underplated/intruded magmatic material and blocks of continental lower crust


Keywords:

References


.
Search In Abstract Of Papers:
Other Papers In This Journal:

  1. The QuakeSim Project: Web Services for Managing Geophysical Data and Applications
  2. The Relationship Between the Interannual Variation of Earth’s Rotation and El Niño Events
  3. Seismic Hazard Assessment: Issues and Alternatives
  4. Interpretation of self-potential anomalies of some simple geometric bodies
  5. A Threshold-Based Earthquake Early-Warning System for Offshore Events in Southern Iberia
  6. Atmospheric ozone and the movement of the air in the stratosphere
  7. Compaction of a Rock Fracture Moderated by Competing Roles of Stress Corrosion and Pressure Solution
  8. Tsunamigenic Earthquakes: Past and Present Milestones
  9. Shear Senses and Viscous Dissipation of Layered Ductile Simple Shear Zones
  10. Tsunami Forecasting and Monitoring in New Zealand
  11. On the Leading Negative Phase of Major 2010–2014 Tsunamis
  12. Statistical Properties of Mine Tremor Aftershocks
  13. Compaction and Failure in High Porosity Carbonates: Mechanical Data and Microstructural Observations
  14. Chemical Composition of Sea Fog Water Along the South China Sea
  15. Seismicity around Dhamni Dam, Maharashtra, India
  16. Ion Composition of Fog Water and Its Relation to Air Pollutants during Winter Fog Events in Nanjing, China
  17. Short-term ground ozone fluctuations at Poona
  18. High-Resolution Numerical Analysis of the Triggering Mechanism of M L 5.7 Aswan Reservoir Earthquake Through Fully Coupled Poroelastic Finite Element Modeling
  19. The Determination of Earthquake Hazard Parameters Deduced from Bayesian Approach for Different Seismic Source Regions of Western Anatolia
  20. Geophysical Investigation of Lithosphere Structure Beneath Sri Lanka Using Surface and Internal Load Variations
  21. 3-D Prestack-migration of Wide-angle Data from a Variscan Transition Zone
  22. A Versatile Nonlinear Inversion to Interpret Gravity Anomaly Caused by a Simple Geometrical Structure
  23. Omori’s Law Applied to Mining-Induced Seismicity and Re-entry Protocol Development
  24. Book Review
  25. Insights into Mt. Etna’s Shallow Plumbing System from the Analysis of Infrasound Signals, August 2007–December 2009
  26. Mining-Induced Stress Transfer and Its Relation to a $$\text{M}_w$$ 1.9 Seismic Event in an Ultra-deep South African Gold Mine
  27. Effect of Loop Geometry on TEM Response Over Layered Earth
  28. Ground Motion Data Profile of Western Turkey with Intelligent Hybrid Processing
  29. Importance of Chemical Composition of Ice Nuclei on the Formation of Arctic Ice Clouds
  30. A New Algorithm for Depth Determination from Total Magnetic Anomalies due to Spheres
  31. Book Review
  32. Book Review
  33. Finite-Difference Modeling and Dispersion Analysis of High-Frequency Love Waves for Near-Surface Applications
  34. Analysis of Summer Ozone Observations at a High Mountain Site in Central Italy (Campo Imperatore, 2388 m a.s.l.)

Search Result: