Composition and temperature of Earth's inner core
نویسندگان
چکیده
منابع مشابه
The inner inner core of Earth.
T solid inner core (Fig. 1) is the most remote and enigmatic part of our planet, and, next to the crust, is the smallest ‘‘official’’ subdivision of Earth’s interior. It was discovered in 1936 (1), and by 1972 it was established that it was solid, albeit with a very small rigidity (2–4). By 1993 it had been established that it was crystalline (5). The inner core is isolated from the rest of Ear...
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We investigate the attenuation structure of the Earth's inner core and its relationship to the velocity structure globally and along various sampling directions, by studying the amplitude ratios and the differential travel times of the PKiKP–PKIKP and PKPbc– PKIKP phases. Our observations reveal that the amplitude ratios of these core phases, like the differential travel times, vary in both sam...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 1997
ISSN: 0148-0227
DOI: 10.1029/97jb02125