Gutenberg Discovers the Earth’s Mantle-Outer Core Boundary

Article abstract: Gutenberg expanded the use of seismographs to the global scale upon his discovery of the boundary between the earth’s outer core and the lower mantle.

Summary of Event

Very little is known about the interior of the earth because of its inaccessibility to modern technology. Based on evidence gained through indirect and secondary research and experiments, scientists have been able to determine that the earth consists of layers. The uppermost layer is the crust, on or in which most life exists. The structure of the remainder of the...

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