<?xml version="1.0"?>
<oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:title>Kerguelen plateau : a volcanic passive margin fragment ?</dc:title>
  <dc:creator>Operto, S.</dc:creator>
  <dc:creator>/Charvis, Philippe</dc:creator>
  <dc:subject>TECTONIQUE DE PLAQUES</dc:subject>
  <dc:subject>GEOLOGIE STRUCTURALE</dc:subject>
  <dc:subject>CROUTE CONTINENTALE</dc:subject>
  <dc:subject>SISMOLOGIE</dc:subject>
  <dc:subject>VOLCANISME</dc:subject>
  <dc:description>The 21-25-km-thick crust of the southern Kerguelen Plateau consists of three units: (1) a &#x2264; 2.3-km-thick sedimentary cover; (2) a 3-6-km-thick basaltic layer with velocities ranging from 4.5 to 6.2 km/s; and (3) a 15-17-km-thick lower crust with velocities from 6.6 to 6.9 km/s, including a 3-6-km-thick transition zone located at the base of the crust. The low-velocity transition zone has an average velocity of 6.7 km/s and exhibits several internal wide-angle reflections. The velocity-depth structure of the crust differs significantly from that of other hotspot-related oceanic plateaus and suggests that the southern Kerguelen Plateau may be a fragment of a volcanic passive margin composed of a thinned continental crust overlain by basalt flows.</dc:description>
  <dc:date>1995</dc:date>
  <dc:type>text</dc:type>
  <dc:identifier>https://www.documentation.ird.fr/hor/fdi:42472</dc:identifier>
  <dc:identifier>fdi:42472</dc:identifier>
  <dc:identifier>Operto S., Charvis Philippe. Kerguelen plateau : a volcanic passive margin fragment ?. 1995, 23 (6),  137-140</dc:identifier>
  <dc:language>EN</dc:language>
  <dc:coverage>OCEAN INDIEN</dc:coverage>
</oai_dc:dc>