|
Detailed Reference Information |
Utada, H., Koyama, T., Shimizu, H. and Chave, A.D. (2003). A semi-global reference model for electrical conductivity in the mid-mantle beneath the north Pacific region. Geophysical Research Letters 30: doi: 10.1029/2002GL016092. issn: 0094-8276. |
|
One-dimensional electrical conductivity structure in the mid-mantle of the one-fourth of the Earth beneath the north Pacific Ocean was obtained by a semi-global electromagnetic induction study. Electromagnetic response functions estimated from electric field variations measured by submarine cables and geomagnetic field variations obtained by magnetic observatories and long-term observations sites were inverted into radially symmetric conductivity distribution by taking the distribution of land and ocean at the surface into account. As a most preferred model, a smooth conductivity-depth profile was obtained with two abrupt increases that possibly correspond to the seismic discontinuities at 410 and 660 km. |
|
|
|
BACKGROUND DATA FILES |
|
|
Abstract |
|
|
|
|
|
Keywords
Geomagnetism and Paleomagnetism, Geomagnetic induction, Marine Geology and Geophysics, Geomagnetism, Mathematical Geophysics, Modeling, Physical Properties of Rocks, Magnetic and electrical properties, Information Related to Geographic Region, Pacific Ocean |
|
Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
|
|
|