Virtual Volcano Vacation challenge #129 – Postcard #3

Flank vents on the outside of the caldera produced lava flows that created additional land at the volcano’s foot that is flat enough to build a village upon. However, there are farms all over the volcano. Extra Credit (1 point)  – What is the highest part of this volcanic island called? Extra Credit (1 point)…

Virtual Volcano Vacation challenge #128 WINNER! – San Quintin Volcanic Field

I thought this week’s virtual vacation would be kind of ordinary… find a volcano…learn about its eruptive or cultural history…dig up some trivia…grab a few pictures..then wait to get found. A sleepy old volcanic field seemed simple enough, until I dug deeper into its geological background. Two free online scholarly PDFs and one failed-attempt-to-fully-grasp-geochemistry later,…

Virtual Volcano Vacation challenge #128 – Postcard #3

This cone is almost surrounded by water, but not quite, and the cones here are actually built on older shield volcanoes. Another cone of this volcano actually is an island. Extra credit (1 point)  What is the island cone called? Extra credit (2 points)  What do you call the bit of mantle that lies below…