Results 171 to 180 of about 4,180 (226)
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Paleomagnetism and the Nature of the Geodynamo
Science, 1990Records of direct observations of the earth's magnetic field cover less than a ten-millionth of the known lifetime of the field. Thus our knowledge of several geomagnetic phenomena, critical to our understanding of the geodynamo, must come from the paleomagnetic record.
R T, Merrill, P L, McFadden
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Polar Wandering and Paleomagnetism
Annual Review of Earth and Planetary Sciences, 1987An important hypothesis of paleomagnetism is that apparent polar wander, the motion of the paleomagnetic pole relative to a continent or plate, is caused entirely by plate motion relative to the mesosphere, which is the relatively stronger and slowly deforming mantle beneath the astheno sphere.
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Annual Review of Earth and Planetary Sciences, 1976
Meteorites are the iron and stony bodies which fall to earth from time to time, apparently randomly, but from elliptical orbits, indicating that they are properly parts of the solar system and may be associated with the asteroids which are con centrated between Mars and Jupiter.
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Meteorites are the iron and stony bodies which fall to earth from time to time, apparently randomly, but from elliptical orbits, indicating that they are properly parts of the solar system and may be associated with the asteroids which are con centrated between Mars and Jupiter.
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Geological Society of America Bulletin, 1960
This review is an attempt to bring together and discuss relevant information concerning the magnetization of rocks, especially that having paleomagnetic significance. All paleomagnetic measurements available to the authors are here compiled and evaluated, with a key to the summary table and illustrations in English and Russian.
ALLAN COX, RICHARD R. DOELL
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This review is an attempt to bring together and discuss relevant information concerning the magnetization of rocks, especially that having paleomagnetic significance. All paleomagnetic measurements available to the authors are here compiled and evaluated, with a key to the summary table and illustrations in English and Russian.
ALLAN COX, RICHARD R. DOELL
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Deformation and paleomagnetism
Surveys in Geophysics, 1997We may use tectonic structures to confirm the primary age of a paleomagnetic remanence component but only if we know how to undo the natural strain history. It is normally insufficient to untilt fold limbs, as in the original version of Graham's Fold Test.
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Geologische Rundschau, 1964
Paleomagnetic measurements prove large scale polar wandering and continental drift in the geologic past. Data from the Permian of the Alpine foldbelt are not consistent with those from “Meso-Europa”; that is from Europe north of this foldbelt. This discrepancy indicates the probability that the Tethys has been a major ocean, whilst during the Mesozoic ...
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Paleomagnetic measurements prove large scale polar wandering and continental drift in the geologic past. Data from the Permian of the Alpine foldbelt are not consistent with those from “Meso-Europa”; that is from Europe north of this foldbelt. This discrepancy indicates the probability that the Tethys has been a major ocean, whilst during the Mesozoic ...
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Paleomagnetism and magnetostriction
Journal of Geophysical Research, 1956The role of magnetostriction in the problem of rock magnetism has heretofore been neglected. Based on some experimental observations and on reconsiderations of well-known factors affecting rocks, the conclusion is reached that magnetostriction may figure prominently in establishing the directions of magnetization observed in many cases.
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