Lecture 4: MORB petrogenesis. Outline 1)Overview of igneous petrogenesis 2)Mid-Ocean Ridges – how are they characterized? 3)MORB – where and how do they.
Magma Ascent and Emplacement Best Chapter 9. Topics How does magma ascend? How do dikes form? How is magma emplaced?
EHaz Convergent Margins Class Adakites: 10 April 2008 1 Constraints on Adakite Existence Colin Macpherson University of Durham.
Lithospheric Plate Structure Lithosphere (or plate) = crust + uppermost, rigid part of the mantle.
Pyroxenes
Earth’s Deep Carbon Cycle
