Selected first author conference contributions




2015

  • Hoffmann, D.L., Pike, A.W.G., García-Diez, M., Pettitt, P.B., Zilhão, J. Age constraints for Palaeolithic cave art by U-Th dating of thin carbonate crusts. EGU General Assembly 2015, Vienna, April 12-17, 2015.

2014

  • Hoffmann, D., Mattey, D., Atkinson, T., Grassineau, N. and The Gibraltar Cave Science Unit. A Gibraltar speleothem record for the last glacial period and implications for climate stability in the western Mediterranean. Climate Change - The Karst Record (KR7), Melbourne, September 29 - October 3, 2014.

2011

  • Hoffmann, D.L., Rogerson, M., Spötl, C., Vance, D., Moseley, G., Luetscher, M. A speleothem record of episodic enhanced humidity in Northern Libya during MIS 3. Climate Change - The Karst Record (KR6), Birmingham, June 26-29, 2011.
  • Hoffmann, D., MC-ICPMS U-Th isotope measurements for precise speleothem chronologies in Quaternary climate research (solicited). EGU General Assembly 2011, Vienna, April 3 - 8, 2011.
  • Hoffmann, D.L. MC-ICPMS U-Th isotope measurements for precise speleothem chronologies in Quaternary climate research. INTIMATE Workshop, Potsdam, February 7 - 9, 2011.

2010

  • Hoffmann, D.L., Rogerson, M., Spötl, C., Vance, D. A speleothem record of the 'Mediterranean monsoon' during MIS 3 in Northern Libya. 3rd International Daphne Workshop, Innsbruck, June 30 - July 2, 2010.
  • Hoffmann, D.L., Richards, D.A., Peck, J.A., King, J.W., Overpeck, J.T., Scholz, C.A. U-Th dating of lacustrine carbonates from Lake Bosumtwi, Ghana. EGU General Assembly 2010, Vienna, May 2 - 7, 2010.

2009

  • Hoffmann, D.L. U-Th analyses of carbonate rich varved lake sediments - potential for dating. Workshop on Allogenic Contributions in U-Series Dating, Open University, Milton Keynes, March 20, 2009.

2008

  • Hoffmann, D.L., Beck, J.W., Richards, D.A., Smart, P.L., Mattey, D.P., Paterson, B.A., Hawkesworth, C. J. Atmospheric radiocarbon variation between 44 and 28 ka based on a U-series dated speleothem. EGU General Assembly 2008, Vienna, April 14 - 18, 2008.
  • Hoffmann, D.L. Procedures for U and Th isotope measurements using MC-ICPMS for applications in geochronology and isotope geochemistry. ESARDA workshop on measurements of minor isotopes in uranium, JRC - IRMM, Geel, April 10-11, 2008.
  • Hoffmann, D.L. Laser ablation (LA) multi ion counter (MIC) MC-ICPMS techniques for U-Th isotope measurements in Quaternary climate research. Deutsche Physikalische Gesellschaft Frühjahrstagung, Darmstadt, March 10-14, 2008.
  • Hoffmann, D.L., Spötl, C., Richards, D.A., Smart, P.L. Potential and limits of dating hiati in speleothems at very high resolution. 2nd International Daphne Workshop 2008, Heidelberg, February 26 - 28, 2008.

2007

  • Hoffmann, D.L., Spötl, C., Mangini, A. Comparison of high spatial resolution MC-ICPMS U-Th dating of a U rich speleothem using laser ablation, micromill and conventinal sampling techniques. 17th Annual V.M. Goldschmidt Conference, Cologne, August 19 - 24, 2007.
  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Borton, C.J., Edwards, R.L. U-Th ages of multiple-phases of speleothem growth in the Bahamas and middle - late Pleistocene sea level change. EGU General Assembly 2007, Vienna, April 15 - 20, 2007.

2006

  • Hoffmann, D.L., Richards, D.A., Spötl, C., Smart, P.L. In situ U-Th dating of speleothems using laser ablation MC-ICPMS. Daphne Workshop 2006, Innsbruck, November 22 - 24, 2006.
  • Hoffmann, D.L., Paterson, B.A., Jonckheere, R., Mangini, A. Uranium concentration measurements on a fossil equid tooth by fission tracks, TIMS and laser-ablation ICP-MS - implications for ESR dating. UK Luminescence and ESR Dating Meeting, Liverpool, September 06 - 08, 2006.
  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Paterson, B.A., Mattey, D.P. Timing of a dry event around 41 ka derived from U-Th dated high resolution stable isotopes and trace elements records in a Bahamian stalagmite. EGU General Assembly 2006, Vienna, April 02 - 07, 2006.
  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Paterson, B.A., Beck, J.W., Mattey, D.P. High-resolution radiocarbon, stable-isotope and trace-element variation in Bahamian speleothems during the last glacial period. Climate Change: The Karst Record (IV), Baile Herculane, May 26 - 29, 2006.

2005

  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Beck, J.W., Paterson, B.A., Mattey, D.P., Hawkesworth, C.J. Using high-resolution radiocarbon, stable-isotope and trace-element variation in Bahamian speleothems to investigate the climate-system during the last glacial period. EGU General Assembly 2005, Vienna, April 24 - 29, 2005.
  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Beck, J.W., Mattey, D.P., Paterson, B.A., Hawkesworth, C.J. High resolution trace-element records in Bahamian speleothems as climate proxies. DEKLIM/PAGES Conference, Mainz, March 7 -10, 2005.

2004

  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Beck, J.W., Mattey, D.P., Paterson, B.A., Hawkesworth, C.J. Investigating the causes of 14C variation in speleothems using high-resolution stable-isotope and trace-element data. 13th Annual V.M. Goldschmidt Conference, Copenhagen, June 5-11, 2004. (Supplement to Geochimica Cosmochimica Acta, 68, 11S, A472)
  • Hoffmann, D.L., Richards, D.A., Smart, P.L., Beck, J.W., Mattey, D.P., Paterson, B.A., Hawkesworth, C.J. Trace element, U-series and cosmogenic nuclide data from Bahamian speleothems. DEKLIM-EEM Workshop, Potsdam, March 8 -10, 2004.

2002

  • Hoffmann, D., Mangini, A. A method for coupled ESR/U-series dating of teeth showing post-depositional U-loss. 10th International Conference on Luminescence and ESR dating, Reno, June 24-28, 2002.

  • Hoffmann, D., Jonckheere, R., Mangini, A. Uranium-analyses on teeth by fission tracks and thermal ionization mass spectrometry (TIMS) - implications for ESR-dating. 10th International Conference on Luminescence and ESR dating, Reno, June 24-28, 2002.

2001

  • Hoffmann, D., Mangini, A., Thermal behaviour of the CO2 -signal in tooth enamel and foraminifera. UK Luminescence and ESR Dating Meeting, Glasgow, 17-19 September 2001.
  • Hoffmann, D., Mangini, A., Investigation on the CO2 -signal in tooth enamel and coupled ESR- and U/Th-dating of equid teeth. 13th International Conference on Solid State Dosimetry, Athens, 9-13 July 2001.

2000

  • Hoffmann, D., Woda, C., Strobl, C., Mangini, A., Electron Spin Resonance (ESR) Dating of Deep sea Sediments. American Geophysical Union Fall meeting, San Francisco, USA, 15-19 December 2000. (Eos, Transactions, American Geophysical Union, 81 (48), F706)

1999

  • Hoffmann, D., Woda, C., Strobl, C., Mangini, A., ESR-dating of the arctic sediment core PS1535: Dose-response and thermal behaviour of the CO2 -signal in foraminifera. 9th International Conference on Luminescence and ESR Dating, Rome, 6-10 September 1999.
  • Hoffmann, D., Woda, C., Strobl, C., Mangini, A., ESR-Datierung eines arktischen Sedimentbohrkerns. Deutsche Physikalische Gesellschaft Frühjahrstagung, Heidelberg, 13-18 March 1999.