James Gilluly

Gilluly concluded that after the Ajo quartz monzonite intruded and crystallized, it was fractured by magmatic bypass solutions (p. 73).

Gilluly frequency experimental restrictions to estimate a paleo depth between 1000 and 3000 (m) (average 2000 (m) or 0.5 kbar at lithostatic pressure), consistent with solidus temperatures of 900 °C for granite, containing 4% by weight of water.

He realized that the source magmatic content was water, sulfur and halogens, and that the binders can form complexes with metals to produce an aqueous fluid with larger volumes.

Gilluly's paternal grandfather was a follower of Robert Emmett who left County Galway for the United States in 1793.

Gilluly enrolled at the University of Washington in 1915, where he explored the study of engineering and economics before focusing on geology.

Gilluly engaged in field work throughout the United States on behalf of the USGS until 1931, when the agency sent him to Europe.

He moved to Los Angeles in 1940, but was soon recalled to work mainly on strategic minerals for the Geological Survey as part of the World War II effort.

In 1944, Gilluly accepted a transfer to the Military Geology Unit, through which he was assigned to the South West Pacific Command.

[1][2] He was a Guggenheim Fellowship recipient in 1960,[5] and won the Walter H. Bucher Medal awarded by the American Geophysical Union in 1969.

USGS Professional Paper 150-D. Roberts, RJ, Hotz, PE, Gilluly, J, and Ferguson, HG.