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: 12, 1975

Sr isotope initial ratios from the San Francisco volcanic field. Arizona (334 KB PDF), p. 1.
— D.G. Brookins and R.B. Moore

K-Ar dates on granodiorite and related scheelite-bearing quartz veins at Tungsten, Pershing County, Nevada (427 KB PDF), p. 3.
— Joseph V. Tingley

Rb-Sr whole rock age determinations for Sandia Granite and Cibola Gneiss, New Mexico (523 KB PDF), p. 5.
— Taggart, J.E.' Brookins, D.G.

K-Ar ages for pegmatitic and metamorphic muscovites, Sandia Mountains, New Mexico (292 KB PDF), p. 9.
— D.G. Brookins and M. Shafiqullah

K-Ar and Rb-Sr age determinations of orbicular granite, Sandia Mountains, New Mexico (520 KB PDF), p. 11.
— D.G. Brookins, R.D. Enz, A.M. Kudo, and M. Shafiullah

Isochron/West, A Bulletin of Isotopic Geochronology (334 KB PDF), pp. 1-12.
— John H. Schilling, [ed.]