Isochron/West

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Isochron/West was published at irregular intervals from 1971 to 1996. The journal was patterned after the journal Radiocarbon and covered isotopic age-dating (except carbon-14) on rocks and minerals from the Western Hemisphere. Initially, the geographic scope of papers was restricted to the western half of the United States, but was later expanded. The journal was sponsored and staffed by the New Mexico Bureau of Mines (now Geology) & Mineral Resources and the Nevada Bureau of Mines & Geology.

Papers from all back-issues are accessible for free in PDF format.

Should you wish to publish a geoscience paper of regional interest on any topic please consider our journal New Mexico Geology.

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Issue: 54, 1989

Dating results from Carlsbad Cavern and other caves in the Guadalupe Mountains, New Mexico (764 KB PDF), pp. 3-7.
— D.C. Ford and C.A. Hill

Isotope data, ages and geology of the Hog Heaven volcanic field northwestern Montana (572 KB PDF), pp. 8-10.
— I.M. Lange and R.E. Zehner

Rb-Sr dating attempts of clay minerals from the east Chaco Canyon (DOE) drilling project, San Juan Basin, New Mexico (385 KB PDF), pp. 11-12.
— D.G. Brookins and R.T. Hicks

Spurious Rb-Sr systematics of clay minerals from the Poison Canyon Sandstonee, Grants Mineral Belt, New Mexico (324 KB PDF), pp. 13-14.
— D.G. Brookins

Fission track ages from volcanic rocks in and near the Little Drum Mountains, Millard County, Utah (332 KB PDF), pp. 15-16.
— L.F. Hintze and B.J. Kowallis

Rb-Sr ages of clay minerals associated with uranium mineralization at the Doris and Silver Spur Mines, Grants Mineral Belt, New Mexico (324 KB PDF), pp. 17-18.
— D.G. Brookins and R.S. Della Valle

K-Ar ages of mineralization associated with the San Andreas fa (1.05 MB PDF), pp. 19-20.
— P.C. Russell, D.H. Sorg, and R.J. McLaughlin

Rb-Sr age of Shoshonitic dikes in the Crandall-Sunlight regin, Absaroka Volcanic Field, Wyoming (625 KB PDF), pp. 21-24.
— D.W. Erskine, D.G. Brookins, A.M. Kudo, and D.B. Ward

Isochron/West, A Bulletin of Isotopic Geochronology, pp. 1-24.
— John H. Schilling, Rayetta Buckley, and Carol A. Hjellming, [eds.]