R
Robert A. Zielinski
Researcher at United States Geological Survey
Publications - 53
Citations - 1335
Robert A. Zielinski is an academic researcher from United States Geological Survey. The author has contributed to research in topics: Uranium & Groundwater. The author has an hindex of 23, co-authored 52 publications receiving 1271 citations.
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The mobility of uranium and other elements during alteration of rhyolite ash to montmorillonite: A case study in the Troublesome Formation, Colorado, U.S.A.
TL;DR: In this paper, an unusual occurrence of juxtaposed glassy and clay-altered ash was sampled to estimate the degree and type of element mobility during alteration of glass to montmorillonite.
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Use of 234U and 238U isotopes to identify fertilizer-derived uranium in the Florida Everglades
TL;DR: In this article, the authors show that surface water and peat in the northern Everglades have very low natural concentrations of U and are therefore sensitive to the addition of small amounts of U from anthropogenic sources such as fertilizer.
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Atmospheric implications of studies of Central American volcanic eruption clouds
Richard D. Cadle,A. L. Lazrus,Barry J. Huebert,Leroy E. Heidt,William I. Rose,David C. Woods,Raymond L. Chuan,Richard E. Stoiber,David B. Smith,Robert A. Zielinski +9 more
TL;DR: In this paper, a group of scientists from the National Center for Atmospheric Research, several colleges and universities, the U.S. Geological Survey, and NASA used a specially equipped Beech Queen Air aircraft to make 11 sampling flights in Guatemala through the eruption clouds from the volcanoes Pacaya, Fuego, and Santiguito.
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Natural or fertilizer-derived uranium in irrigation drainage: a case study in southeastern Colorado, U.S.A.
TL;DR: In this paper, the effect of decades-long application of U-rich fertilizer on the U concentration of irrigation drainage was investigated in a small (14.2 km 2 ) drainage basin in southeastern Colorado.
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Trace element evaluation of a suite of rocks from Reunion Island, Indian Ocean
TL;DR: In this article, the major element compositions of group 1 whole rocks and observed phenocrysts were used to predict the crystallization histories of increasingly residual liquids, and allowed semi-quantitative verification of origin by fractional crystallization of the olivine-basalt parent magma.