Radiogenic Isotope Lab.
| Journal articles since 2000 |
Edmunson, J., Borg, L.,E., Nyquist, L.E. and Asmerom, Y., 2009, A combined Sm-Nd, Rb-Sr, and U-Pb isotopic study of Mg-suite norite 78238: Further evidence for early differentiation of the Moon: Cosmochimica Acta 73, 514-527 Mercader, J., Asmerom, Y., Raja, M., and Skinner, A., 2009, Excavation and Dating of Ngalue Cave: A Middle Stone Age Site along the Niassa Rift, Mozambique: Journal of Human Evolution 57, 63-74.
Asmerom, Y., 2008, Speleothems: Encyclopedia of Paleoclimatology and Ancient Environments, 916-918.
Polyak, V., Hill, C. and Asmerom, Y., 2008, Age and evolution of the Grand Canyon revealed by U-Pb dating of water table-type speleothems: Science 319, 1377-1380.
Denniston, R.F., Asmerom, Y., Polyak, V., McNeill, D.F., Klaus, J.S., Cole, P., and Budd, A.F. 2008, Caribbean Chronostratigraphy Refined with U-Pb Dating of a Miocene Coral. Geology, 36, 151-154. Polyak, V. J; Hill, Carol; Asmerom, Yemane, 2008, Response to Comments on the "Age and Evolution of the Grand Canyon Revealed by U-Pb Dating of Water Table–Type Speleothems": Science, 321, 1634.
Asmerom, Y., Polyak, V., Burns, S., Rassmussen, J., 2007, Solar forcing of Holocene climate: New insights from a speleothem record, southwesternUSA, Geology, 35:1-4.
van Beynen, P.E., Asmerom, Y., Polyak, V., Soto, L., and Polk, J.S., 2007, Variable intensity of teleconnections during the late Holocene in subtropical North America from an isotopic study of speleothem from Florida, Geophysical Research Letters, 34, L18703, doi:10.1029/2007GL031046.
Denniston, R.F., DuPree, M., Dorale, J.A., Asmerom, Y., Polyak, V.J., and Carpenter, S.J., 2007, Episodes of late Holocene aridity recorded by stalagmites from Devil’s Icebox Cave, central Missouri, USA, Quaternary Research, 68: 45-52.
Gaffney, A., Borg, L., and Asmerom, Y., 2007, U-Pb systematics in mare basalt source regions: a combined U-Pb, Rb-Sr and Sm-Nd study of mare basalt 10017: Geochimica et Cosmochimica Acta: vol. 71, no. 14, pp.3656-3671.
Smith, J.R., Hawkins, A.L., Asmerom, Y., Polyak, V., and Giegengack, R., 2007, New age constraints on the Middle Stone Age occupations of Kharga Oasis, Western Desert, Egypt, Journal of Human Evolution, 52: 690-701.
Denniston, R.F., Asmerom, Y., Polyak, V., Dorale, J.A., Carpenter, S.J., Trodick, C., Hoye, B., and Gonzalez, L., 2007, Synchronous millennial-scale climatic changes in the Great Basin and the North Atlantic during the last interglacial, Geology, 35: 619-622.
Lachniet, M.S., W. P. Patterson, S. Burns, Y. Asmerom and V. Polyak, 2007, Caribbean and Pacific moisture sources on the Isthmus of Panama revealed from surface water and stalagmite δ18O gradients: Geophysical Research ,34, L01708, doi:10.1029/2006GL028469.
Hogan, J., Phillips, F., Mills, S., Hendrickx, J., Ruiz, J. Chesley, J., Asmerom, Y.,2007, Geologic origins of salinization in a semi-arid river; the role of sedimentary basin brines: Geology,35: 1063-1066.
DuFrane, S.A., Asmerom, Y., Mukasa, S.B., Morris, J.A., Dreyer, B., 2006, Subduction and melting processes inferred from U-Series, Sr-Nd-Pb isotope, and trace element data, Bataan and Bicol arcs, Philippines: Geochimica et Cosmochimica Acta 70 (2006) 3401–3420.
Rasmussen, J., Polyak, V. and Asmerom, Y., 2006, Evidence for Pacific-modulated precipitation variability during the late Holocene from the southwestern USA: Geophysical Research Letters 33, L08701, doi:10.1029/2006GL025714
Asmerom, Y., DuFrane, A., Mukasa, S., Cheng, H., Edwards, L., 2005,Time-scale of magma differentiation in arcs from protactinium radium data: Geology 33, 633–636; doi: 10.1130/G21638.1 Polyak, V. and Asmerom, Y., 2005, Orbital control of long-term moisture in the southwestern USA: Geophysical Research Letters 32, L19709, doi:10.1029/2005GL023919.
Borg, L. E., Edmunson, J. E., and Asmerom, Y., 2005, Constraints on the U-Pb isotopic systematics of Mars inferred from a combined U-Pb, Rb-Sr, and Sm-Nd isotopic study of the Martian meteorite Zagami, Geochimica et Cosmochimica Acta 69, 5819–5830
Teklay, M., Asmerom, Y., Toulkerdist, T., 2005, Geochemical and Sr.Nd isotope ratios in cenozoic basalts from Eritrea: evidence for temporal evolution from low-Ti tholeiitic to high-Ti alkaline basalts in Afro-Arabian continental flood basalt province: Periodico di mineralogia 74, 167 – 182. Asmerom, Y. and Polyak, V., 2004, Comment on Betancourt et al. (2002) “A test of annual resolution in stalagmites using tree rings.”: Quaternary Research 61, 119-121.
Polyak, V., Rasmussen, J., Asmerom, Y., 2004, Prolonged wet period in the southwestern United States through the Younger Dryas: Geology 32, 5-8.
Borg, L., Shearer, C., Asmerom, Y. and Papike, J., 2004, Evidence for Prolonged KREEP Magmatism on the Moon from the Youngest Dated Lunar Igneous Rock: Nature, 432, 209-211.
Lachniet, M.S., Asmerom, Y., Burns, S., Patterson, W.P., Polyak, V. and Seltzer, G.O., 2004, Tropical Response to the 8200 yr cold event? Speleothem isotopes indicate a weakened early Holocene monsoon in Costa Rica. Geology 32, 957-960.
Lachniet, M.S., Burns, S.J., Piperno, D.R., Asmerom, Y., Polyak, V.J., Moy, C.M. and Christenson, K., 2004, A 1500 year El Niño/Southern Oscillation and rainfall history for the Isthmus of Panama from speleothem calcite. Journal of Geophysical Research, D, Atmospheres109, D20117, doi:10.1029/2004JD004694. Patrick J. Mickler, P.J., Banner,J.L., Stern, L., Asmerom, Y., Edwards, R.L., and Ito, E., 2004, Stable isotope variations in modern tropical speleothems: Evaluating applications to paleoenvironmental reconstructions. Geochimica et Cosmochimica Acta 68, 4381-4393.
Polyak, V. J. and Asmerom, Y. 2001. Late Holocene climate and cultural changes in the Southwestern United States, Science, 294: 148-151.
Asmerom, Y., Cheng, H., Thomas, R., and Hirschmann, M., Edwards, R.L., 2000, Lithospheric Mantle Melting Constrained by Pa-Th-U Isotopic Data: Nature 406, 293-296.
Polyak, V., Cokendolpher, J., Norton, R., and Asmerom, Y., 2001, A wetter and cooler Late Holocene climate in the southwestern USA from mites preserved in stalagmites: Geology 29, 643-646 Getty, S., Asmerom, Y., Quinn, T., and Budd, A., 2001, Accelerated Pleistocene Coral Extinctions in the Caribbean Basin from Uranium-Lead (U-Pb) Dating: Geology, 29, 639-642. Teklay, M., T. Haile, A. Kröner, Y. Asmerom, and J. Watson, 2003, A back-arc palaeotectonic setting for the Augaro Neoproterozoic magmatic rocks of western Eritrea: Gondwana Research 6, 629-640. Denniston, R.F., González, L.A., Asmerom, Y., and Reagan, M.K., 2001, A high-resolution speleothem record of climatic variability during the Allerød-Younger Dryas transition in Missouri, central United States: Palaeogeography, Palaeoclimatology, Palaeoecology, 176 147-155. Zachau, T., Getty, S., Gries, C., Asmerom, Y., Zambrano, A. and Nash, T., 2003, Historical and current atmospheric deposition to the epilithic lichen Xanthoparmelia in Maricopa County, Arizona: Environmental Pollution 125, 21-30. Grandia F, Asmerom Y, Getty S, Cardellach E, Canals A, 2000, U-Pb dating of MVT ore-stage calcite: implications for fluid flow in a Mesozoic extensional basin from Iberian Peninsula: Journal of Geochemical Exploration, 69, 377-380, 2000. Teklay, M., Berhe, K., Reimold, W., Armstrong, R., Asmerom, Y., and Watson, J., 2002, Geochemistry and geochronology of a Neoproterozoic low-K tholeiite-boninite association in Central Eritrea: Gondwana Research, 5, 597-612. Denniston, R.F., González, L.A., Asmerom, Y., and Reagan, M.K., 2000, Speleothem records of early and late Holocene vegetation dynamics in the Ozark Highlands, U.S.A.: Quaternary International , v. 67 pp. 21-27. Cheng, H., Edwards, R.L., Hoff, J., Gallup, C.D., Richards, D.A., and Asmerom, Y., 2000, The half-lives of uranium-234 and thorium-230: Chemical Geology, 169, 17-33. Denniston, R.F., González, L.A., Asmerom, Y., Sharma, R.H., and Reagan, M.K, 2000, Speleothem evidence for changes in Indian summer monsoon precipitation over the last 2300 years: Quaternary Research 53, 196-202.
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