ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Hits per page

hit 1 - 1 | 1 hit

Sorting

Unknown

25 years of the impact-volcanic controversy - Is there anything new under the sun or inside the earth? (1990)

French, Bevan M.

In: Other Sources

add to mindlist on the mindlist

Details

Publication Date: 2019-08-27

Description: The evidence for meteorite impact and internal volcanic processes (cryptovolcanism) as the cause of the K-T extinction and for cryptoexplosion structures is briefly reviewed. It is shown that numerous studies reinforce the view that shock-metamorphic features uniquely indicate shock pressure from 5 GPa to over 50 GPa, that no generally accepted shock-metamorphic features have been found in unquestioned volcanic structures, and that no internal process has been demonstrated to produce the required shock pressures. This history therefore supports an impact origin for both cryptoexplosion structures and the K-T event. Future discoveries required to make the cryptovolcanic theory a respectable alternative are discussed.

Keywords: GEOPHYSICS

Type: EOS (ISSN 0096-3941); 71; 411-414

Format: text

Permalink

	Location	Call Number	Expected	Availability

Others were also interested in ...

NASA TECHNICAL REPORTS

S·F·X

hit 1 - 1 | 1 hit