Mathematics – Logic
Scientific paper
Jan 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974e%26psl..21..209k&link_type=abstract
Earth and Planetary Science Letters, Volume 21, Issue 2, p. 209-212.
Mathematics
Logic
5
Scientific paper
Tectonic erosion of inner trench slopes of some arc systems has been suggested as a viable process. The discontinuity and truncation of structures along the coastline from Mexico to Chile demands a process by which continental crust is removed, but marine geologic and geophysical evidence indicates that accretion rather than erosion is presently occurring in those trenches. A more plausible process is the rifting of continental margins along the trend of the arc systems as an effect of oblique sucduction. This process can be observed in the Baja California region. Tectonic erosion in oceanic trenches, as the Tonga trench, is precluded by the steady growth of the inner slope area. Geologic and geophysical data from these regions implies the accretion of oceanic basement.
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