MORB emplacement and structure: Insights from the Semail ophiolite, Oman

Details MORB emplacement and structure: Insights from the Semail ophiolite, Oman MORB emplacement and structure: Insights from the Semail ophiolite, Oman

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.3933p&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 23, p. 3933-3936

Physics

Geophysics

Marine Geology And Geophysics: Midocean Ridge Processes, Physical Properties Of Rocks: Magnetic And Electrical Properties

Scientific paper

As opposed to discontinuous seafloor dredging and coring, ophiolites and downhole geophysical measurements provide continuous sections along which high frequency accretion processes at mid-ocean ridges may be studied. A multidisciplinary study carried out on a volcanic section of the Semail ophiolite with MORB-like chemical composition reveals two main petrological and geochemical members. The boundary between the two is marked by the presence of a massive flow equating to the most primitive lava sampled, and across which significant changes are obtained. Petrophysical profiles are correlated to geochemical variations and provide thus a description of the magmatic activity through time. These temporal variations may be compared to those derived from crustal drilling and continuous logging measurements.

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