Isochron/West
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.
Issue: 56, 1990
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New 40Ar/39Ar ages for the Spearhead and Civet Cat Canyon Members of the Stonewall Flat Tuff, Nye County, Nevada-Evidence for systematic errors in standard K-Ar age determinations on sanidine (812 KB PDF), pp. 3-7.— B.P. Hausback, A.L. Deino, B.T. Turrin, E.H. McKee, V.A. Fizzell Jr, D.C. Noble, and S.I. Weiss
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K-Ar and fission-track ages (dates) of volcanic, intrusive, altered, and metamorphic rocks in the Mohave Mountains area, west-central Arizona (2.51 MB PDF), pp. 8-20.— J.K. Nakata, M.A. Pernokas, K.A. Howard, J.E. Nielson, and J.R. Shannon
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Age of the Adel Mountain volcanic field, west-central Montana (658 KB PDF), pp. 21-23.— Sheriff, S.D. Gunderson, J.A.
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Rb-Sr systematics in lava flows of the Clarno Formation in north-central Oregon (1.11 MB PDF), pp. 24-29.— I.B. Suayah
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K-Ar and fission-track ages of tuff beds at the Three Kids Mine Clark County, Nevada: Implications for manganese mineralization (957 KB PDF), pp. 30-33.— R.A. Koski, J.R. Hein, R.M. Bouse, R.C. Evarts, and L.B. Pickthorn
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Isochron/West, A Bulletin of Isotopic Geochronology, pp. 1-33.— John H. Schilling, Rayetta Buckley, and Carol A. Hjellming, [eds.]