https://www.usgs.gov/publications/geochemistry-1989-1990-eruption-redoubt-volcano-part-i-whole-rock-major-and-trace
The 1989-1990 eruption of Redoubt Volcano produced medium-K calc-alkaline andesite and dacite of limited compositional range (58.2-63.4% SiO2) and entrained...
redoubt volcanogeochemistryeruptionpart
https://www.alaska.org/detail/mount-redoubt-volcano?query=dbf46eb4ceb360a40bf40cef68564b53&id=38758
This 10,197-foot massif about 110 miles southwest of Anchorage and 50 miles west of Kenai is one of the most active volcanoes in Alaska
redoubt volcanovisiblekenaialaskaorg