Roger L. Nielsen - Publications

Affiliations: 
Oregon State University, Corvallis, OR 
Area:
Geochemistry, Geology

58 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2024 Dygert N, Ustunisik GK, Nielsen RL. Europium in plagioclase-hosted melt inclusions reveals mantle melting modulates oxygen fugacity. Nature Communications. 15: 3033. PMID 38589354 DOI: 10.1038/s41467-024-47224-5  0.535
2020 Nielsen RL, Ustunisik G, Lange AE, Tepley FJ, Kent AJR. Trace Element and Isotopic Characteristics of Plagioclase Megacrysts in Plagioclase Ultraphyric Basalts (PUB) Geochemistry Geophysics Geosystems. 21: 8638. DOI: 10.1029/2019Gc008638  0.444
2019 Drignon MJ, Nielsen RL, Tepley FJ, Bodnar RJ. Upper mantle origin of plagioclase megacrysts from plagioclase-ultraphyric mid-oceanic ridge basalt Geology. 47: 43-46. DOI: 10.1130/G45542.1  0.449
2019 Drignon MJ, Nielsen RL, Tepley FJ, Bodnar RJ. Reequilibration Processes Occurring in Plagioclase‐Hosted Melt Inclusions From Plagioclase Ultraphyric Basalts Geochemistry Geophysics Geosystems. 20: 109-119. DOI: 10.1029/2018Gc007795  0.474
2019 Ustunisik G, Ebel DS, Walker D, Nielsen RL, Gemma M. Trace element partitioning between CAI-type melts and grossite, melilite, hibonite, and olivine Geochimica Et Cosmochimica Acta. 267: 124-146. DOI: 10.1016/J.Gca.2019.08.038  0.522
2017 Nielsen RL, Ustunisik G, Weinsteiger AB, Tepley FJ, Johnston AD, Kent AJR. Trace element partitioning between plagioclase and Melt: An investigation of the impact of experimental and analytical procedures Geochemistry Geophysics Geosystems. 18: 3359-3384. DOI: 10.1002/2017Gc007080  0.408
2016 Ustunisik G, Loewen MW, Nielsen RL, Tepley FJ. Interpretation of the provenance of small-scale heterogeneity as documented in a single eruptive unit from Mt. Jefferson, Central Oregon Cascades Geochemistry, Geophysics, Geosystems. 17: 3469-3487. DOI: 10.1002/2016Gc006297  0.488
2015 Hatfield AK, Nielsen RL, Kent AJR, Rowe MC, Duncan RA. Snow Peak, Oregon: Latest Miocene low-K tholeiite volcanism in the Cascadia forearc Lithos. 239: 86-96. DOI: 10.1016/J.Lithos.2015.10.009  0.461
2014 Ustunisik G, Kilinc A, Nielsen RL. New insights into the processes controlling compositional zoning in plagioclase Lithos. 200: 80-93. DOI: 10.1016/J.Lithos.2014.03.021  0.58
2013 Lange AE, Nielsen RL, Tepley FJ, Kent AJR. Diverse sr isotope signatures preserved in mid-oceanic-ridge basalt plagioclase Geology. 41: 279-282. DOI: 10.1130/G33739.1  0.608
2013 Lange AE, Nielsen RL, Tepley FJ, Kent AJR. The petrogenesis of plagioclase-phyric basalts at mid-ocean ridges Geochemistry, Geophysics, Geosystems. 14: 3282-3296. DOI: 10.1002/Ggge.20207  0.56
2011 Nielsen RL. The effects of re‐homogenization on plagioclase hosted melt inclusions Geochemistry Geophysics Geosystems. 12. DOI: 10.1029/2011Gc003822  0.576
2011 Adams DT, Nielsen RL, Kent AJR, Tepley FJ. Origin of minor and trace element compositional diversity in anorthitic feldspar phenocrysts and melt inclusions from the Juan de Fuca Ridge Geochemistry Geophysics Geosystems. 12: 1-18. DOI: 10.1029/2011Gc003778  0.627
2009 Rowe MC, Kent AJR, Nielsen RL. Subduction Influence on Oxygen Fugacity and Trace and Volatile Elements in Basalts Across the Cascade Volcanic Arc Journal of Petrology. 50: 61-91. DOI: 10.1093/Petrology/Egn072  0.575
2007 Rowe MC, Kent AJR, Nielsen RL. Determination of sulfur speciation and oxidation state of olivine hosted melt inclusions Chemical Geology. 236: 303-322. DOI: 10.1016/J.Chemgeo.2006.10.007  0.528
2006 Rowe MC, Nielsen RL, Kent AJR. Anomalously high Fe contents in rehomogenized olivine-hosted melt inclusions from oxidized magmas American Mineralogist. 91: 82-91. DOI: 10.2138/Am.2006.1818  0.529
2006 Kohut EJ, Stern RJ, Kent AJR, Nielsen RL, Bloomer SH, Leybourne M. Evidence for adiabatic decompression melting in the Southern Mariana Arc from high-Mg lavas and melt inclusions Contributions to Mineralogy and Petrology. 152: 201-221. DOI: 10.1007/S00410-006-0102-7  0.767
2004 Kohut E, Nielsen RL. Melt inclusion formation mechanisms and compositional effects in high-An feldspar and high-Fo olivine in anhydrous mafic silicate liquids Contributions to Mineralogy and Petrology. 147: 684-704. DOI: 10.1007/S00410-004-0576-0  0.757
2003 Kohut EJ, Nielsen RL. Low-pressure phase equilibria of anhydrous anorthite-bearing mafic magmas Geochemistry Geophysics Geosystems. 4: 1057. DOI: 10.1029/2002Gc000451  0.777
2002 Sours-Page R, Nielsen RL, Batiza R. Melt inclusions as indicators of parental magma diversity on the Northern East Pacific Rise Chemical Geology. 183: 237-261. DOI: 10.1016/S0009-2541(01)00384-9  0.796
2002 Norman MD, Garcia MO, Kamenetsky VS, Nielsen RL. Olivine-hosted melt inclusions in Hawaiian picrites: equilibration, melting, and plume source characteristics Chemical Geology. 183: 143-168. DOI: 10.1016/S0009-2541(01)00376-X  0.681
2002 Michael PJ, McDonough WF, Nielsen RL, Cornell WC. Depleted melt inclusions in MORB plagioclase: Messages from the mantle or mirages from the magma chamber? Chemical Geology. 183: 43-61. DOI: 10.1016/S0009-2541(01)00371-0  0.635
2000 Nielsen RL, Sours-Page RE, Harpp KS. Role of a Cl-bearing flux in the origin of depleted ocean floor magmas Geochemistry Geophysics Geosystems. 1: 1007. DOI: 10.1029/1999Gc000017  0.795
2000 Hilyard M, Nielsen RL, Beard JS, Patinõ-Douce A, Blencoe J. Experimental determination of the partitioning behavior of rare earth and high field strength elements between pargasitic amphibole and natural silicate melts Geochimica Et Cosmochimica Acta. 64: 1103-1120. DOI: 10.1016/S0016-7037(99)00379-8  0.546
2000 Nielsen RL, Beard JS. Magnetite–melt HFSE partitioning Chemical Geology. 164: 21-34. DOI: 10.1016/S0009-2541(99)00139-4  0.423
1999 Sours-Page R, Johnson KTM, Nielsen RL, Karsten JL. Local and regional variation of MORB parent magmas: evidence from melt inclusions from the Endeavour Segment of the Juan de Fuca Ridge Contributions to Mineralogy and Petrology. 134: 342-363. DOI: 10.1007/S004100050489  0.81
1998 Nielsen RL, Michael PJ, Sours-Page R. Chemical And Physical Indicators Of Compromised Melt Inclusions Geochimica Et Cosmochimica Acta. 62: 831-839. DOI: 10.1016/S0016-7037(98)00024-6  0.785
1998 Staudigel H, Albarède F, Blichert-Toft J, Edmond J, McDonough B, Jacobsen SB, Keeling R, Langmuir CH, Nielsen RL, Plank T, Rudnick R, Shaw HF, Shirey S, Veizer J, White W. Geochemical Earth Reference Model (GERM): description of the initiative Chemical Geology. 145: 153-159. DOI: 10.1016/S0009-2541(97)00141-1  0.385
1995 Bacon PE, Hou JG, Sleight AW, Nielsen RL. Nitride formation by air ignition Journal of Solid State Chemistry. 119: 207-209. DOI: 10.1016/0022-4596(95)80032-K  0.3
1995 Nielsen RL, Christie DM, Sprtel FM. Anomalously low sodium MORB magmas: Evidence for depleted MORB or analytical artifact? Geochimica Et Cosmochimica Acta. 59: 5023-5026. DOI: 10.1016/0016-7037(95)00366-5  0.515
1995 Nielsen RL, Crum J, Bourgeois R, Hascall K, Forsythe LM, Fisk MR, Christie DM. Melt inclusions in high-An plagioclase from the Gorda Ridge: an example of the local diversity of MORB parent magmas Contributions to Mineralogy and Petrology. 122: 34-50. DOI: 10.1007/S004100050111  0.659
1994 Rieman BE, Myers DL, Nielsen RL. Use of Otolith Microchemistry to Discriminate Oncorhynchus nerka of Resident and Anadromous Origin Canadian Journal of Fisheries and Aquatic Sciences. 51: 68-77. DOI: 10.1139/F94-009  0.328
1994 Patino-Douce ML, Patino-Douce A, Qayyum M, Nielsen RL. New Set Of Low Concentration Standards For La, Ce, Sm, Yb, Lu, Y, Sc, V, Nb And Ta In Silicates Geostandards and Geoanalytical Research. 18: 195-198. DOI: 10.1111/J.1751-908X.1994.Tb00517.X  0.421
1994 Duncan RA, Fisk MR, White WM, Nielsen RL. Tahiti: Geochemical evolution of a French Polynesian Volcano Journal of Geophysical Research: Solid Earth. 99: 24341-24357. DOI: 10.1029/94Jb00991  0.594
1994 Nielsen RL, Forsythe LM, Gallahan WE, Fisk MR. Major- and trace-element magnetite-melt equilibria Chemical Geology. 117: 167-191. DOI: 10.1016/0009-2541(94)90127-9  0.531
1994 Forsythe LM, Nielsen RL, Fisk MR. High-field-strength element partitioning between pyroxene and basaltic to dacitic magmas Chemical Geology. 117: 107-125. DOI: 10.1016/0009-2541(94)90124-4  0.48
1994 Hack PJ, Nielsen RL, Johnston AD. Experimentally determined rare-earth element and Y partitioning behavior between clinopyroxene and basaltic liquids at pressures up to 20 kbar Chemical Geology. 117: 89-105. DOI: 10.1016/0009-2541(94)90123-6  0.519
1993 Ariskin AA, Nielsen RL. Application of Computer Simulation of Magmatic Processes to the Teaching of Petrology Journal of Geological Education. 41: 438-441. DOI: 10.5408/0022-1368-41.5.438  0.479
1993 Ariskin AA, Frenkel MY, Barmina GS, Nielsen RL. COMAGMAT: a Fortran program to model MAGMA differentiation processes Computers & Geosciences. 19: 1155-1170. DOI: 10.1016/0098-3004(93)90020-6  0.542
1993 Beattie P, Drake M, Jones J, Leeman W, Longhi J, McKay G, Nielsen R, Palme H, Shaw D, Takahashi E, Watson B. Terminology for trace-element partitioning Geochimica Et Cosmochimica Acta. 57: 1605-1606. DOI: 10.1016/0016-7037(93)90015-O  0.315
1993 Frey FA, Walker N, Stakes D, Hart SR, Nielsen R. Geochemical characteristics of basaltic glasses from the amar and famous axial valleys, Mid-Atlantic Ridge (36°-37°N): Petrogenetic implications Earth and Planetary Science Letters. 115: 117-136. DOI: 10.1016/0012-821X(93)90217-W  0.628
1993 Sinton CW, Christie DM, Coombs VL, Nielsen RL, Fisk MR. Near-primary melt inclusions in anorthite phenocrysts from the Galapagos Platfrom Earth and Planetary Science Letters. 119: 527-537. DOI: 10.1016/0012-821X(93)90060-M  0.68
1992 Nielsen RL. BIGD.FOR: a Fortran program to calculate trace-element partition coefficients for natural mafic and intermediate composition magmas Computers & Geosciences. 18: 773-788. DOI: 10.1016/0098-3004(92)90024-L  0.48
1992 Gallahan WE, Nielsen RL. The partitioning of Sc, Y, and the rare earth elements between high-Ca pyroxene and natural mafic to intermediate lavas at 1 atmosphere Geochimica Et Cosmochimica Acta. 56: 2387-2404. DOI: 10.1016/0016-7037(92)90196-P  0.527
1992 Nielsen RL, Gallahan WE, Newberger F. Experimentally determined mineral-melt partition coefficients for Sc, Y and REE for olivine, orthopyroxene, pigeonite, magnetite and ilmenite Contributions to Mineralogy and Petrology. 110: 488-499. DOI: 10.1007/Bf00344083  0.557
1992 Nielsen RL, DeLong SE. A numerical approach to boundary layer fractionation: application to differentiation in natural magma systems Contributions to Mineralogy and Petrology. 110: 355-369. DOI: 10.1007/Bf00310750  0.486
1990 French BM, Nielsen RL. Vredefort bronzite granophyre: chemical evidence for origin as a meteorite impact melt Tectonophysics. 171: 119-138. DOI: 10.1016/0040-1951(90)90094-O  0.561
1990 Defant MJ, Nielsen RL. Interpretation of open system petrogenetic processes: Phase equilibria constraints on magma evolution Geochimica Et Cosmochimica Acta. 54: 87-102. DOI: 10.1016/0016-7037(90)90197-S  0.525
1990 Nielsen RL, Gallaha WE. In defense of the two-lattice melt model: A comment on Ellison and Hess Geochimica Et Cosmochimica Acta. 54: 2293-2295. DOI: 10.1016/0016-7037(90)90053-N  0.462
1989 Nielsen RL. Phase equilibria constraints on liquid lines of descent generated by paired assimilation and fractional crystallization: Trace elements and Sr and Nd isotopes Journal of Geophysical Research. 94: 787-794. DOI: 10.1029/Jb094Ib01P00787  0.574
1988 Nielsen RL. TRACE. FOR: a program for the calculation of combined major and trace-element liquid lines of descent for natural magmatic systems Computers & Geosciences. 14: 15-35. DOI: 10.1016/0098-3004(88)90050-7  0.474
1988 Nielsen RL. A model for the simulation of combined major and trace element liquid lines of descent Geochimica Et Cosmochimica Acta. 52: 27-38. DOI: 10.1016/0016-7037(88)90053-1  0.576
1988 Nielsen RL, Davidson PM, Grove TL. Pyroxene-melt equilibria: an updated model Contributions to Mineralogy and Petrology. 100: 361-373. DOI: 10.1007/Bf00379745  0.353
1985 Nielsen RL, Dungan MA. The petrology and geochemistry of the Ocate volcanic field, north-central New Mexico Geological Society of America Bulletin. 96: 296-312. DOI: 10.1130/0016-7606(1985)96<296:Tpagot>2.0.Co;2  0.619
1985 Nielsen RL. EQUIL: a program for the modeling of low-pressure differentiation processes in natural mafic magma bodies Computers & Geosciences. 11: 531-546. DOI: 10.1016/0098-3004(85)90084-6  0.498
1985 Nielsen RL. A method for the elimination of the compositional dependence of trace element distribution coefficients Geochimica Et Cosmochimica Acta. 49: 1775-1779. DOI: 10.1016/0016-7037(85)90148-6  0.461
1983 Nielsen RL, Dungan MA. Low pressure mineral-melt equilibria in natural anhydrous mafic systems Contributions to Mineralogy and Petrology. 84: 310-326. DOI: 10.1007/Bf01160284  0.504
1979 Nielsen RL, Drake MJ. Pyroxene-melt equilibria Geochimica Et Cosmochimica Acta. 43: 1259-1272. DOI: 10.1016/0016-7037(79)90117-0  0.535
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