Mark D. Barton

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Shirley P. Dutton is a senior research scientist at the Bureau of Economic Geology with research interests in sedimentology, reservoir characterization , sedimentary petrology, and clastic dia-genesis. She received a B.A. degree from the University of Rochester and an M.A. degree and Ph.D. from the University of Texas at Austin, all in geology. William A.(More)
The Eureka district hosts mid-Cretaceous (~106 Ma), igneous-related, polyme-tallic carbonate replacement deposits that have subsequently been overprinted by Eocene(?) Carlin-type gold mineralization, including the Archimedes deposit. This study presents (1) results of new Anaconda-style outcrop geologic map of a structurally complex area measuring 4.5 km 2(More)
This study assessed the relationship of non-injected illicit drug use and infectious disease seropositivity for human immunodeficiency virus (HIV-1), hepatitis B virus (HBV), hepatitis C virus (HCV), and Syphilis. In a retrospective review of 986 donor charts recovered from 2009 to 2011 at a single tissue bank, the absence of reported non-injected illicit(More)
Carbonate ores of cobalt are a significant but under-recognized fraction of the global Co resource. Cobalt forms spherocobaltite (CoCO 3 , calcite group), whose complete solid solution with isostructural magnesite, MgCO 3 , is described here for the first time. Cobalt-rich dolomite, Ca(Mg,Co)(CO 3) 2 , and Co-rich calcite, (Ca,Co)CO 3 , can accommodate up(More)
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