Morphological Evidence For Dike Emplacement in a High Pressure Environment

Details Morphological Evidence For Dike Emplacement in a High Pressure Environment Morphological Evidence For Dike Emplacement in a High Pressure Environment

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1059p&link_type=abstract

Lunar and Planetary Science, volume 27, page 1059

Mathematics

Logic

Dikes: Emplacement, Mid-Ocean Ridge, Morphology, Venus, Volcanics

Scientific paper

We have undertaken a detailed study of the morphology of the Mid-Atlantic Ridge between 24 degrees 50'N, 45 degrees 50'W and 29 degrees 10'N, 43 degrees 10'W, in order to characterize the emplacement of volcanics under high pressure environments analogous to Venus and to better understand the processes involved in the formation of oceanic crust. Using high resolution side-scan sonar data we have mapped four segments of the axial volcanic ridge (AVR) along the Mid-Atlantic Ridge and have defined a series of geological units on the basis of morphology and morphometry, the dominant unit being long linear ridges apparently emplaced by dike intrusion. We compare the evolution of the AVR along our study area using these ridges as indicators of dike width and intrusion rate.

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