Volcanic Fields of North AmericaKent Ratajeski and Brian Stogner
Published Oct. 15, 2006
In this activity, students gather gather data from selected North American volcanic fields which were active during the Cenozoic. Geographic, age, and geochemical data from each volcanic field are easily obtained from the North American Volcanic and Intrusive Rock Database (NAVDAT). Students are asked to compare and contrast the geochemical and age data, classify the field by geochemical criteria, and make hypotheses for the similarities and differences that they observe. This exercise provides a broad overview of the volcanic history of North America as well as opportunities to explore features of individual volcanic fields.