Does Lower Mantle Tomography Indicate Temperature Variations That Affect the Core?
نویسندگان
چکیده
منابع مشابه
Lower mantle tomography and phase change mapping
[1] A lower mantle S wave triplication (Scd) has been recognized for many years and appears to be explained by the recently discovered perovskite (PV) to postperovskite (PPV) phase change. Seismic observations of Scd display (1) rapid changes in strength and timing relative to S and ScS and (2) early arrivals beneath fast lower mantle regions. While the latter feature can be explained by a Clap...
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ژورنال
عنوان ژورنال: Journal of geomagnetism and geoelectricity
سال: 1993
ISSN: 0022-1392
DOI: 10.5636/jgg.45.1229