'Mid ocean ridge basalt' diaporamas de présentation

Geochemical Arguments Favoring an Hawaiian Plume J. Michael Rhodes University of Massachusetts Dominique Weis University

281 views • 16 slides

A primer on magmas and petrology: or, what the &#$!@ is a MORB? Tectonics Spring 2012

254 views • 13 slides

lower mantle

We propose this scenario: Layered Mantle Convection. p otential hotspot. u pper mantle. p otential hotspot. lower mantle. Location of the boundary can be adjusted to suit different needs. It does not need to be at a constant depth globally.

329 views • 12 slides

WHAT IS MAGMA MADE UP OF?

WHAT IS MAGMA MADE UP OF?. At divergent boundaries and hot spots, magma forms by PARTIAL MELTING (not complete melting) of the mantle Minerals with higher melting points stay in the mantle. Minerals with relatively lower melting points melt to form the magma.

397 views • 9 slides