Lista de obras -

40Ar/39Ar age of the Manson impact structure, Iowa, and correlative impact ejecta in the Crow Creek Member of the Pierre Shale (Upper Cretaceous), South Dakota and Nebraska

artículo científico publicado en 1998

A Summary of Radiometric Ages of Tertiary Volcanic Rocks in Nevada and Eastern California. Part I, Central California ⬇️

artículo científico publicado en 1971

Age of the igneous rocks associated with ore deposits, Cortez-Buckhorn, Nevada ⬇️

artículo científico publicado en 1971

Biostratigraphic data from Upper Cretaceous formations-eastern Wyoming, central Colorado, and northeastern New Mexico

Early Eocene biotic and climatic change in interior western North America

scholarly article

Geochronology of the Late Cenozoic volcanism of Yellowstone National Park and adjoining areas, Wyoming and Idaho

scholarly article by John D. Obradovich published 1992 in Open-File Report

High plant diversity in Eocene South America: evidence from Patagonia

artículo científico publicado en 2003

Integrating 40Ar/39Ar, U-Pb, and astronomical clocks in the Cretaceous Niobrara Formation, Western Interior Basin, USA

artículo científico publicado en 2014

Intercalibration of radioisotopic and astrochronologic time scales for the Cenomanian-Turonian boundary interval, Western Interior Basin, USA

article

K–Ar age of the late Pleistocene eruption of Toba, north Sumatra

artículo científico publicado en 1978

Magnetostratigraphy and geochronology of the Hell Creek and basal Fort Union Formations of southwestern North Dakota and a recalibration of the age of the Cretaceous-Tertiary boundary

scholarly article published 2002

Overlapping Plutonism, Volcanism, and Tectonism in the Boulder Batholith Region, Western Montana

artículo científico publicado en 1968

Potassium-Argon and Fission-Track Zircon Ages of Cerro Toledo Rhyolite Tephra in the Jemez Mountains, New Mexico ⬇️

artículo científico publicado en 1981

Precambrian geochronology of the northwestern Uncompahgre Plateau, Utah and Colorado ⬇️