@article {248, title = {In situ cosmogenic (10)Be production-rate calibration from the Southern Alps, New Zealand RID D-4720-2011}, journal = {Quaternary Geochronology}, volume = {5}, year = {2010}, note = {id: 2031; PT: J; UT: WOS:000280946500002}, pages = {392-409}, abstract = {We present a (10)Be production-rate calibration derived from an early Holocene debris-flow deposit at about 1000 m above sea level in the central Southern Alps, New Zealand, in the mid-latitude Southern Hemisphere. Ten radiocarbon ages on macrofossils from a soil horizon buried by the deposit date the deposit to 9690 +/- 50 calendar years before AD2008. Surface (10)Be concentrations of seven large boulders partially embedded in the stable surface of the deposit are tightly distributed, yielding a standard deviation of similar to 2\%. Conversion of the (10)Be measurements to sea level/high-latitude values using each of five standard scaling methods indicates (10)Be production rates of 3.84 +/- 0.08, 3.87 +/- 0.08, 3.83 +/- 0.08, 4.15 +/- 0.09, and 3.74 +/- 0.08 atoms g(-1) a(-1), relative to the {\textquoteright}07KNSTD{\textquoteright} (10)Be AMS standard, and including only the local time-integrated production-rate uncertainties. When including a sea level high-latitude scaling uncertainty the overall error is similar to 2.5\% (1 sigma) for each rate. To test the regional applicability of this production-rate calibration, we measured (10)Be concentrations in a set of nearby moraines deposited before 18060 +/- 200 years before AD2008. The (10)Be ages are only consistent with minimum-limiting (14)C age data when calculated using the new production rates. This also suggests that terrestrial in situ cosmogenic-nuclide production did not change significantly from Last Glacial Maximum to Holocene time in New Zealand. Our production rates agree well with those of a recent calibration study from northeastern North America, but are 12-14\% lower than other commonly adopted values. The production-rate values presented here can be used elsewhere in New Zealand for rock surfaces exposed during or since the last glacial period. (C) 2009 Elsevier B.V. All rights reserved.}, issn = {1871-1014}, doi = {10.1016/j.quageo.2009.12.001}, author = {Putnam, A. E. and Schaefer, J. M. and Barrell, D. J. A. and Vandergoes, M. and Denton, G. H. and Kaplan, M. R. and Finkel, R. C. and Schwartz, R. and Goehring, B. M. and Kelley, S. E.} } @article { ISI:000280946500002, title = {In situ cosmogenic Be-10 production-rate calibration from the Southern Alps, New Zealand}, journal = {QUATERNARY GEOCHRONOLOGY}, volume = {5}, number = {{4}}, year = {2010}, month = {AUG}, pages = {392-409}, type = {Article}, abstract = {We present a Be-10 production-rate calibration derived from an early Holocene debris-flow deposit at about 1000 m above sea level in the central Southern Alps, New Zealand, in the mid-latitude Southern Hemisphere. Ten radiocarbon ages on macrofossils from a soil horizon buried by the deposit date the deposit to 9690 +/- 50 calendar years before AD2008. Surface Be-10 concentrations of seven large boulders partially embedded in the stable surface of the deposit are tightly distributed, yielding a standard deviation of similar to 2\%. Conversion of the Be-10 measurements to sea level/high-latitude values using each of five standard scaling methods indicates Be-10 production rates of 3.84 +/- 0.08, 3.87 +/- 0.08, 3.83 +/- 0.08, 4.15 +/- 0.09, and 3.74 +/- 0.08 atoms g(-1) a(-1), relative to the {\textquoteleft}07KNSTD{\textquoteright} Be-10 AMS standard, and including only the local time-integrated production-rate uncertainties. When including a sea level high-latitude scaling uncertainty the overall error is similar to 2.5\% (1 sigma) for each rate. To test the regional applicability of this production-rate calibration, we measured Be-10 concentrations in a set of nearby moraines deposited before 18060 +/- 200 years before AD2008. The Be-10 ages are only consistent with minimum-limiting C-14 age data when calculated using the new production rates. This also suggests that terrestrial in situ cosmogenic-nuclide production did not change significantly from Last Glacial Maximum to Holocene time in New Zealand. Our production rates agree well with those of a recent calibration study from northeastern North America, but are 12-14\% lower than other commonly adopted values. The production-rate values presented here can be used elsewhere in New Zealand for rock surfaces exposed during or since the last glacial period. (C) 2009 Elsevier B.V. All rights reserved.}, keywords = {Be-10, C-14, Cosmogenic nuclide, Debris flow, Holocene, Last glacial maximum, Moraine, Production rate, South Island}, issn = {1871-1014}, doi = {10.1016/j.quageo.2009.12.001}, author = {Putnam, A. E. and Schaefer, J. M. and Barrell, D. J. A. and Vandergoes, M. and Denton, G. H. and Kaplan, M. R. and Finkel, R. C. and Schwartz, R. and Goehring, B. M. and Kelley, S. E.} } @article {442, title = {In situ cosmogenic 10Be production-rate calibration from the Southern Alps, New Zealand}, journal = {Quaternary Geochronology}, year = {2009}, note = {id: 840In pressY}, doi = {10.1016/j.quageo.2009.12.001}, author = {Putnam, A. E. and Schaefer, J. M. and Barrell, D. J. A. and Vandergoes, M. and Denton, G. H. and Kaplan, M. R. and Finkel, R. C. and Schwartz, R. and Goehring, B. M. and Kelley, S. E.} } @article {435, title = {A Be-10 chronology of lateglacial and Holocene mountain glaciation in the Scoresby Sund region, east Greenland: implications for seasonality during lateglacial time}, journal = {Quaternary Science Reviews}, volume = {27}, year = {2008}, note = {id: 1868; 389XX Times Cited:7 Cited References Count:75Y}, pages = {2273-2282}, abstract = {Thirty-eight new cosmogenic (Be-10) exposure ages from the Scoresby Sund region of east Greenland indicate that prominent moraine sets deposited by mountain glaciers date from 780 to 310 yr, approximately during the Little Ice Age, from 11660 to 10 630 yr, at the end of the Younger Dryas cold interval or during Preboreal time, and from 13 010 to 11630 yr, during lateglacial time. Equilibrium line altitudes (ELAs) interpreted from lateglacial to Early Holocene moraines indicate summertime cooling between similar to 3.9 and 6.6 degrees C relative to today{\textquoteright}s value, much less than the extreme Younger Dryas cooling registered by Greenland ice cores (mean-annual temperatures of similar to 15 degrees C colder than today{\textquoteright}s value). This apparent discrepancy between paleotemperature records supports the contention that Younger Dryas cooling was primarily a wintertime phenomenon. Be-10 ages of lateglacial and Holocene moraines show that mountain glaciers during the Little Ice Age were more extensive than at any other time since the Early Holocene Epoch. In addition, 10Be ages of lateglacial moraines show extensive reworking of boulders with cosmogenic nuclides inherited from prior periods of exposure, consistent with our geomorphic observations and cosmogenic-exposure dating studies in other Arctic regions. (C) 2008 Elsevier Ltd. All rights reserved.}, issn = {0277-3791}, doi = {10.1016/j.quascirev.2008.08.004}, author = {Kelly, M. A. and Lowell, T. V. and Hall, B. L. and Schaefer, J. M. and Finkel, R. C. and Goehring, B. M. and Alley, R. B. and Denton, G. H.} } @article {2048, title = {Deglacial history of the Ecuadorian Andes and implication for climate variations: Preliminary results}, journal = {Eos Trans. AGU Fall Meeting Supplement}, volume = {85}, year = {2004}, note = {id: 1003}, month = {2004}, author = {Hall, M. and Rinterknecht, V. R. and Schaefer, J. M. and R, Seager and Greene, A.} }