Total Alkali vs Silica: Cascade Volcanic Arc

Media

Part of Cascade Volcanic Arc: Alumina Saturation Indices and Total Alkali vs Silica

Title

Total Alkali vs Silica: Cascade Volcanic Arc

Description

This plot shows that the total alkalis increase with increasing wt% SiO2. This is reasonable, as Na and K are incompatible elements that tend to stay in the liquid melt until the later stages of crystallization.

Subject

Petrology 2015 Final Project: Cascade Volcanic Arc

Creator

Devon Gorbey

Source

PetDB

Mediator

Tamara Carley