Brad Singer - Publications by year

in press or review, 2004
Brown, L.L., Pickens, J.P.C., Singer, B.S., and Jicha, B.R., Transitional field geometry during the Matuyama-Brunhes reversal: Paleomagnetic and geochronologic data from the Tatara-San Pedro volcanic complex, Chilean Andes. Journal of Geophysical Research (in review 2/04). pre-print (2.5 Mb pdf)

Singer, B.S., Radioisotopic dating of geomagnetic reversals and excursions. in: Gubbins, D., and Herrero-Bervera, E., eds. Encyclopedia of Geomagnetism. Kluwer.

Jicha, B.R., Singer, B.S., Brophy, J.G., Fournelle, J.H., Johnson, C.M., Beard, B.L., Lapen, T.J., and Mahlen, N.J.,Variable Impact of the Subducted Slab on Aleutian Island Arc Magma Sources: Evidence from Sr, Nd, Pb, and Hf Isotopes and Trace Element Abundances, Journal of Petrology. pre-print (0.7 Mb pdf)

Ghinassi. M., Magi, M., Sagri, M., and Singer, B.S., Arid climate 2.5 Ma in the Plio-Pleistocene Valdarno Basin (Northern Apennines, Italy). Palaeogeography, Palaeoclimatology, Palaeoecology. reprint (1.0 Mb pdf)

Singer, B.S., Brown, L.L., Rabassa, J.O., and Guillou, H., ⁴⁰Ar/³⁹Ar chronology of Late Pliocene and early Pleistocene geomagnetic and glacial events in southern Argentina. in: Channell, J.E.T., Lowrie, W., and Meert J., eds. Timescales of the Internal Geomagnetic Field, American Geophysical Union, Geophysical Monograph (June, 2004). pre-print (1.6 Mb pdf)

Hoffman, K.A., and Singer, B.S., A record of the Big Lost geomagnetic event in Tahitian lavas: Evidence for recurring transitional field configurations of the last 3 Ma. in: Channel, J.E.T., Lowrie, W., and Meert J., eds. Timescales of the Internal Geomagnetic Field, American Geophysical Union, Geophysical Monograph (June, 2004) pre-print (2.5 Mb pdf)

Coe, R.S., Singer, B.S, Pringle, M.S., and Zhao, X.(2004) Matuyama-Brunhes reversal and Kamikatsura Event on Maui: Paleomagnetic directions and ⁴⁰Ar/³⁹Ar ages. Earth and Planetary Science Letters, reprint (1.0 Mb)

2004
Mejia, V., Opdyke, N.D., Vilas, J.F., Singer, B.S., and Stoner, J.S, Plio-Pleistocene time averaged field in southern Patagonia recorded in lava flows. Geochemistry, Geophysics, and Geosystems, vol 5, no. 3, 2 March, 2004, Q03H08 doi:10.1029/2003GC000633. reprint (0.7 Mb pdf)

Kaplan, M.R, Ackert, R.P. Jr., Singer, B.S., Douglass, D.C., Kurz, M.D. (2004) Cosmogenic nuclide chronology of millennial-scale glacial advances during O-isotope stage 2 in Patagonia. Geological Society of America Bulletin, vol. 116, p. 308-321. reprint (1.0 Mb)

Singer, B.S., Ackert, R.P. Jr., and Guillou, H. (2004) ⁴⁰Ar/³⁹Ar and K-Ar chronology of Pleistocene glaciations in Patagonia. Geological Society of America Bulletin, vol. 116, p. 434-450. reprint (1.0 Mb)

Smith, M.E., Singer, B.S., and Carroll, A.R. (2004) Reply to comment on: ⁴⁰Ar/³⁹Ar geochronology of the Green River Formation, Wyoming, by Clyde, W.C., Bartels, W.S., Gunnell, G.F., and Zonneveld, J.-P., Geological Society of America Bulletin, v. 116, p. 253-256. reprint (0.6 Mb pdf)

Brown, L.L., Singer, B.S., and Gorring, M., (2004) Paleosecular variation in the Southern Hemisphere: Paleomagnetic and geochronologic results from Meseta del Lago Buenos Aires, Patagonia, Argentina. Geochemistry, Geophysics, and Geosystems. vol. 5, 21 January 2004, Q01H04, doi:10.1029/2003GC000526, 21 pp. reprint (1.7 Mb pdf)

2003
Pietras, J.T, Carroll, A.R., Singer, B.S., and Smith, M.E., (2003) 10 k.y. depositional cyclicity in the early Eocene: Stratigraphic and ⁴⁰Ar/³⁹Ar evidence from the Lacustrine Green River Formation. Geology. v. 31, p. 593-596. reprint (1.0 Mb)

Ackert, R.P. Jr., Singer, B.S., Kurz, M. D. H. Guillou, and Kaplan, M.R. (2003) Calibration of ³He production rates against ⁴⁰Ar/³⁹Ar and K-Ar dated Patagonia lava flows, 46^o S, Earth and Planetary Science Letters, v. 210, p. 119-136. reprint (0.8 Mb)

Smith, M.E., Singer, B.S., and Carroll, A.R. (2003) ⁴⁰Ar/³⁹Ar geochronology of the Green River Formation, Wyoming. Geological Society of America Bulletin, v. 115, p. 549-565. reprint (3.2 Mb)

Medaris, L.G., Singer, B.S., Dott, R.H., Naymark, A., Johnson, C.M., and Schott, R.C. (2003) Late Paleoproterozoic climate, tectonics and metamorphism in the southern Lake Superior region and Proto-North America: Evidence from Baraboo interval quartzites. Journal of Geology, v. 111, p. 243-257. reprint (0.4 Mb)

Gorring, M., Singer, B., Gowers, J., and Kay, S.M. (2003) Plio-Pleistocene basalts from the Meseta del Lago Buenos Aires, Argentina: Evidence for asthenosphere-lithosphere interactions during slab-window magmatism. Chemical Geology,v. 193, p. 215-235. reprint (0.6 Mb)

Davidson, C.M., Davis, K.J., Bailey, C.M., Tape, C.H., Singleton, J., and Singer, B. (2003) The age, origin, and significance of pseudotachylite along the Coast shear zone, Prince Rupert, British Columbia. Geology, v. 31, p. 43-46. reprint (0.8 Mb pdf)

2002
Marchev, P., and Singer, B.(2002) ⁴⁰Ar/³⁹Ar geochronology of magmatism and hydrothermal activity of the Madjarovo base-precious ore district, Eastern Rhodopes, Bulgaria. in: Blundell, D.J., Neubauer, F., and Von Quadt, eds.: The Timing and Location of Major ore deposits in an Evolving Orogen, Geological Society of London, Special Publications, v. 204, p. 137-150. reprint (12.9 Mb pdf)

Singer, B.S., Relle, M.R., Hoffman, K.A., Battle, A., Guillou, H., Laj, C., Carracedo, J.C. (2002) Ar/Ar ages of transitionally magnetized lavas on La Palma, Canary Islands, and the Geomagnetic Instability Timescale. Journal of Geophysical Research, v. 107 (B11), 2307, doi:10.1029/2001JB001613. reprint (0.8 Mb pdf)

Costa, F., and Singer, B. (2002) Evolution of Holocene dacite and compositionally zoned magma, Volcán San Pedro, Southern Volcanic Zone, Chile. Journal of Petrology, v. 43, p. 1571-1593. reprint (1.1 Mb pdf)

Singer, B.S., and Brown, L.L. (2002) The Santa Rosa Event: ⁴⁰Ar/³⁹Ar and paleomagnetic results from the Valles Rhyolite near Jaramillo Creek, Jemez Mountains, New Mexico. Earth and Planetary Science Letters, v. 197, p. 51-65. reprint (0.8 Mb pdf)

Costa, F., Dungan, M.A., and Singer, B.S. (2002) Hornblende and phlogopite-bearing gabbroic crustal xenoliths from Volcan San Pedro (36^o S), Chilean Andes: Evidence for melt and fluid migration and reactions in subduction-related plutons. Journal of Petrology, v. 43, p. 219-241. reprint (3.2 Mb pdf)

2001
Ton-That, T., Singer, B., and Paterne, M. (2001) ⁴⁰Ar/³⁹Ar dating of latest Pleistocene (41 ka) marine tephra in the Mediterranean Sea: Implications for global climate records. Earth and Planetary Science Letters, v. 184, p. 645-658. reprint (0.6 Mb pdf)

Costa, F., Dungan, M.A., and Singer, B.S. (2001) Magmatic sodium-rich phlogopite in a suite of gabbroic crustral xenoliths from Volcan San Pedro (36^o S, Chilean Andes): Evidence for a solvus relation between sodium phlogopite and phlogopite. American Mineralogist, v. 86, p. 29-35. reprint (0.6 Mb pdf)

2000
Singer, B., Hildreth, W., and Vincze, Y. (2000) 40Ar/39Ar evidence for early deglaciation of the central Chilean Andes. Geophysical Research Letters, v. 27, p 1663-1666. reprint (1.7 Mb pdf)

Singer, B., and Marchev, P. (2000) Temporal evolution of arc magmatism and hydrothermal activity, including epithermal gold veins, at Borovitsa caldera, southern Bulgaria. Economic Geology, v. 95, p. 1155-1164.reprint (1.0 Mb pdf)

Thirlwall, M.F., Singer, B.S., and Marriner, G.F. (2000) ³⁹Ar-⁴⁰Ar ages and geochemistry of the basaltic shield stage of Tenerife, Canary Islands, Spain. Journal of Volcanology and Geothermal Research, v. 103, p. 247-297.reprint (21 Mb pdf)

1999
Singer, B.S., Hoffman, K.A., Chauvin, A., Coe, R.S., and Pringle, M.S. (1999) Dating transitionally magnetized lavas of the late Matuyama Chron: Toward a new ⁴⁰Ar/³⁹Ar timescale of reversals and events. Journal of Geophysical Research, v. 104, p. 679-693.reprint (0.8 Mb pdf)

Ton-That, T., Singer, B.S., Mörner, N.A., and Rabassa, J. (1999) Datación por el método ⁴⁰Ar/³⁹Ar de lavas basalticas y geología del Cenozoico superior en la región del Lago Buenos Aires, provincia de Santa Cruz, Argentina, Revista de la Asociación Geológica Argentina, v. 54, p. 333-352. reprint (14 Mb pdf)

Hildreth, W., Fierstein, J., Godoy, E., Drake, R.E., and Singer, B. (1999) The Puelche Volcanic Field: extensive Pleistocene rhyolite lava flows in the Andes of central Chile. Revista Geológica de Chile, v. 26, p. 275-309.

1998
Singer, B.S., Wijbrans, J., Nelson, S.T., Pringle, M.S., Feeley, T.C., Dungan, M.A.(1998) Inherited argon in a Pleistocene andesite lava: 40Ar/39Ar incremental-heating and laser fusion analyses of plagioclase. Geology, v. 26, p. 427-430.

Hildreth, W., Singer, B.S., Godoy, E., and Munizaga, F. (1998) The age and constitution of Cerro Campanario, a mafic stratovolcano in the Andes of central Chile. Revista Geológica de Chile, v. 25, p. 17-28.

1997
Singer B.S., and nine others (1997) Volcanism and erosion during the past 930 thousand years at the Tatara-San Pedro complex, Chilean Andes. Geological Society of America Bulletin. v. 109, p. 127-142.

Marschik, R., Singer, B.S., Munizaga, F., Tassinari, C., Moritz, R., and Fontboté, L., (1997) Age of Cu(-Fe) mineralization and thermal evolution of the Punta del Cobre District, Chile. Mineralium Deposita. v. 32, p. 531-546.

1996
Singer, B.S., and Pringle, M.S. (1996) Age and duration of the Matuyama-Brunhes geomagnetic polarity transition from ⁴⁰Ar/³⁹Ar incremental heating analyses of lavas. Earth and Planetary Science Lettersv., 139, p. 47-61.

Singer, B.S., Leeman, W., Thirlwall, M, and Rogers, N. (1996) Does Fracture zone subduction increase sediment flux and mantle melting in subduction zones? Trace element evidence from Aleutian arc basalt. in: G. Bebout, S. Kirby, D. Scholl, and J. Platt, eds.: Subduction from Top to Bottom. American Geophysical Union Monograph no. 96, American Geophysical Union, Washington D.C., p. 285-291.

Brophy, J.G., Dorais, M.J., Donnelly-Nolan, J., and Singer, B.S. (1996) A textural and compositional (ion-probe and electron probe) study of plagioclase zonation styles in hornblende gabbro cumulates from Little Glass Mountain, Medicine Lake volcano, California: Implications for fractional crystallization mechanisms in calc-alkaline magma genesis. Contributions to Mineralogy and Petrology, v. 126, p. 121-136.

1995
Singer, B.S., Dungan, M.A., and Layne, G.D. (1995) Textures and Sr, Ba, Mg, Fe, K, and Ti compositional profiles in volcanic plagioclase: Clues to the dynamics of calc-alkaline magma chambers. American Mineralogist, v. 80, pp. 776-798. reprint (22 Mb pdf)

1994 and earlier
Brown, L.L., Pickens, J.R., Singer, B.S. (1994) Matuyama-Brunhes transition recorded in lava flows of the Chilean Andes: Evidence for dipolar fields during reversals. Geology, v. 22, pp. 299-302.

Singer, B.S., Pearce, T.H., Kolisnik, A.K., and Myers, J.D. (1993) Plagioclase zoning in mid-Pleistocene lavas lavas from the Seguam volcanic center, central Aleutian arc, Alaska. American Mineralogist, v. 78, pp. 143-157.

Singer, B.S., and Pearce, T.H. (1993) Plagioclase zonation in a basalt to rhyodacite eruptive suite, Seguam Island, Alaska: Nomarski contrast interference observations. Canadian Mineralogist, v. 31, pp. 459-466.

Singer, B.S., O'Neil, J.R., and Brophy, J.G. (1992) Oxygen isotope constraints on the petrogenesis of Aleutian arc magmas. Geology, v. 20, pp. 367-370.

Singer, B.S., Myers, J.D., and Frost, C.D. (1992) Mid-Pleistocene basalts from the Seguam Island volcanic center, central Aleutian arc, Alaska: local lithospheric structures and source variability in the Aleutian arc. Journal of Geophysical Research. v. 97, pp. 4561-4578.

Singer, B.S., Myers J.D., and Frost C.D. (1992) Mid-Pleistocene lavas from the Seguam Island volcanic center, central Aleutian arc: closed-system fractional crystallization of a basalt to rhyodacite eruptive suite. Contributions to Mineralogy and Petrology. v. 110, pp. 87-112.

Singer, B.S. and Myers, J.D. (1990) Intra-arc extension and magmatic evolution in the central Aleutian arc, Alaska. Geology, v. 18, pp. 1050-1053.

Singer, B.S., Myers, J.D., Linneman, S.R. and Angevine, C.L. (1989) The thermal history of ascending magma diapirs and the thermal and physical evolution of magmatic conduits. Journal of Volcanology and Geothermal Research, v. 37, pp. 273-289.

Singer, B.S., and Kudo, A.M. (1986) Assimilation-fractional crystallization of Polvadera Group rocks in the northwestern Jemez Volcanic Field, New Mexico. Contributions to Mineralogy and Petrology, v. 94, pp. 374-386.