Wednesday, November 18, 2009

Spencer Titley Honorary Map released

At last night's dinner honoring UA geology professor Spencer Titley, the AZGS presented him with a mounted copy of the reissued geologic map of the Twin Buttes quadrangle, now dedicated as the "Spencer R. Titley Honorary Map." This is the first time in the history of the Survey that a map has been named in honor of someone.

The dedication on the map states, “This map is dedicated to Spencer R. Titley for his 55 years of extraordinary contributions to understanding mineral deposits in Arizona and the Southwest, and for his supervision of well over 100 graduate students who have contributed greatly to that effort.”

We chose the Twin Buttes map because of Spencer's pioneering work on the origin and nature of copper porphyry deposits, using the Twin Buttes and Mission-Pima mines shown on this map.

Ref: Richard, S.M., Spencer, J.E., Youberg, Ann, and Johnson, B.J., 2003. Geologic Map of the Twin Buttes 7-1/2” Quadrangle, Pima County, Arizona: Arizona Geological Survey Digital Geologic Map 31, version 1.1, 1 sheet, scale 1:24,000

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