Evidence from three-dimensional seismic reflectivity images for enhanced melt supply beneath mid-ocean-ridge discontinuities
Article Abstract:
Research is presented concerning the continuity and geometry of magma features underneath mid-ocean ridges. The underlying pattern of the flow of the mantle below these features is discussed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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Seismic reflection images of the Moho underlying melt sills at the East Pacific Rise
Article Abstract:
The presence of the crust-mantle boundary (the Moho) reflections beneath a crustal magma chamber at the 9 degrees 03' N overlapping spreading centre, East Pacific Rise is reported using three-dimensional seismic reflection images, and observations highlight the formation of the Moho at zero-aged crust. The amplitude versus offset variation of reflections from the sills of the magma chamber shows a coincident region of higher melt fraction overlying this anomalous region, identifying an additional melt at depth.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Melt to mush variations in crustal magma properties along the ridge crest at the southern East Pacific Rise
Article Abstract:
A new study investigates the process of crustal accretion and eruption by examining the variations in the melt sill along the southern East Pacific Rise. It is shown that a 60 km-long ridge section, around 50 mt thick, contains several small pure melt pockets embedded in a mushy magma chamber. It is suggested that such observations could be used to determine which melt-rich pockets along the crest of the ridge may erupt next.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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