| Nanogoethite is the dominant reactive oxyhydroxide phase in lake and marine sediments C van der Zee, DR Roberts, DG Rancourt, CP Slomp Geology 31 (11), 993-996, 2003 | 340 | 2003 |
| Combining selective sequential extractions, X-ray absorption spectroscopy, and principal component analysis for quantitative zinc speciation in soil AC Scheinost, R Kretzschmar, S Pfister, DR Roberts Environmental science & technology 36 (23), 5021-5028, 2002 | 331 | 2002 |
| Zinc speciation in a smelter-contaminated soil profile using bulk and microspectroscopic techniques DR Roberts, AC Scheinost, DL Sparks Environmental Science & Technology 36 (8), 1742-1750, 2002 | 219 | 2002 |
| Kinetics and mechanisms of Zn complexation on metal oxides using EXAFS spectroscopy DR Roberts, RG Ford, DL Sparks Journal of Colloid and Interface Science 263 (2), 364-376, 2003 | 174 | 2003 |
| Kinetics of mixed Ni− Al precipitate formation on a soil clay fraction DR Roberts, AM Scheidegger, DL Sparks Environmental science & technology 33 (21), 3749-3754, 1999 | 131 | 1999 |
| Speciation of metals in soils D Roberts, M Nachtegaal, DL Sparks Chemical processes in soils 8, 619-654, 2005 | 97 | 2005 |
| Zinc speciation in contaminated soils combining direct and indirect characterization methods D Roberts, A Scheinost, D Sparks Geochemical and hydrological reactivity of heavy metals in soils 187, 2003 | 27 | 2003 |
| J Colloid Interf DR Roberts, RG Ford, DL Sparks Science, 2003 | 5 | 2003 |
| Speciation and sorption mechanisms of metals in soils using bulk and micro-focused spectroscopic and microscopic techniques DR Roberts University of Delaware, 2001 | 3 | 2001 |
| Nickel sorption kinetics/mechanisms on the clay fraction: An XAFS study. DR Roberts, AM Scheidegger, DL Sparks ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 214, 49-GEOC, 1997 | 1 | 1997 |
| Codelco to start selling copper cathode stocks. D Roberts, M Cooper Metal Bulletin, 12, 2004 | | 2004 |
| Accident hits production at Codelco smelter. D Roberts Metal Bulletin, 6, 2004 | | 2004 |
| Chilean copper smelter switches to natural gas for energy needs. D Roberts American Metal Market 111 (29), 6, 2003 | | 2003 |
| Codelco to cut copper sales by 200, 000 tonnes in 2003 D Roberts, T Norways Metal Bulletin(UK) 8730, 4, 2002 | | 2002 |
| Codelco decision on Mejillones due in ealry 2003 D Roberts Metal Bulletin(UK) 8690, 5, 2002 | | 2002 |
| Codelco says reorganisation will enhance value D Roberts Metal Bulletin(UK) 8662, 5, 2002 | | 2002 |
| Codelco tries a new tactic-cutting copper production D Roberts Metal Bulletin(UK) 8649, 9, 2002 | | 2002 |
| Nickel sorption kinetics on the clay fraction of a soil. DR Roberts, DL Sparks ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 213, 173-GEOC, 1997 | | 1997 |
| Chemical analysis of the soils of Silver Canyon Vineyard DR Roberts California Polytechnic State University, 1996 | | 1996 |
| Microscale Zn Speciation in Smelter-contaminated Soils DR Roberts, DL Sparks | | |
