Geochronologic sample location with analysis. Results summary: AA sani-sg:18.30+/-0.07; Location: Sample was taken from a west-facing slope at an elevation of about 3200', and below a saddle between 3521' and 3403' peaks in the NE/4 of sec. 34, T1N, R10E. Arizona, Superstition Mts. (quad sheet WEAVERS NEEDLE); Citation: McIntosh and Ferguson, 1998; Sample description: Lower of two moderately crystal-rich rhyodacite lavas of the Coffee Flat Mountain Formation that occur just south of the Superstition Cauldron margin and in the immediate hangingwall of the Elephant Butte fault. Unit was mapped as Tful by Ferguson and Sk
Summary
Geochronologic sample location with analysis. Results summary: AA sani-sg:18.30+/-0.07; Location: Sample was taken from a west-facing slope at an elevation of about 3200', and below a saddle between 3521' and 3403' peaks in the NE/4 of sec. 34, T1N, R10E. Arizona, Superstition Mts. (quad sheet WEAVERS NEEDLE); Citation: McIntosh and Ferguson, 1998; Sample description: Lower of two moderately crystal-rich rhyodacite lavas of the Coffee Flat Mountain Formation that occur just south of the Superstition Cauldron margin and in the immediate hangingwall of the Elephant Butte fault. Unit was mapped as Tful by Ferguson and Sk
