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: 62, 1995

⁴⁰Ar/³⁹Ar age determinations of sanidine from ash-flow tuffs of the Ryan Spring and Ripgut Springs formation in east-central Nevada (489 KB PDF), pp. 3-5.
— R.D. LaBerge

Rb-Sr dating of metasedimentary, metavolcanic, and metaplutonic igneous rocks from the Nason and Mad River terranes, North Cascade mountains, Washington (2.22 MB PDF), pp. 6-15.
— J.F. Magloughlin

Geochronology and geochemistry of pleistocene basalts of the western Snake River plain and Smith Prairie, Idaho (2.40 MB PDF), pp. 16-29.
— K.L. Othberg, B. Bonnichsen, C.C. Swisher III, and M.M. Godchaux

Age, chemistry, and geologic implications of tertiary volcanic rocks in the Last Chance Range and part of the Saline Range, northern Death Valley region, California (2.89 MB PDF), pp. 30-36.
— R.J. Miller and C.T. Wrucke

Isochron/West, A Bulletin of Isotopic Geochronology, pp. 1-37.
— John H. Schilling, Rayetta Buckley, and Carol A. Hjellming, [eds.]