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Isotopes & Dating in Marine Environments
This webinar will cover the following topics:
- An introduction to dating (C-14, U-Th, Sr/Sr)
- Isotopes in marine environments (d18O, d13C, B, Pb, Sr, Nd, Hf)
- Common sample types analyzed
- Sampling & submission recommendations


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Dr. Maren Pauly, mpauly@betalabservices.com
Scientific Associate @Isobar Science
Dr. Maren Pauly is a Scientific Associate at Beta Analytic and Isobar Science. She is a paleoclimatologist who completed her Master of Science and Bachelor of Science degrees at the University of Waterloo in Canada and her PhD at the Freie Universität Berlin. Her research experience includes reconstructing climate from modern corals and subfossil tree-rings as well as Late Glacial radiocarbon calibration.
Dr. Arash Sharifi, asharifi@betalabservices.com
VP of Laboratory Operations @Isobar Science
Arash Sharifi is an isotope geochemist, paleoclimatologist and geologist specializing in the application of organic and inorganic geochemistry in reconstructing past climate and environmental conditions. He holds a B.Sc. in geology (University of Isfahan,1993), M.Sc. in petrology (University of Tehran 1996), M.Sc. in earth system science (University of California-Irvine, 2009), and Ph.D. in marine geology and geophysics (University of Miami, 2017). Since 1994, Arash has worked extensively in organic and inorganic geochemistry research facilities, conducted multiple research projects around the world and was involved in the initiation of multiple research laboratories.
Keiran Swart, kswart@betalabservices.com
Laboratory Specialist @Isobar Science
Keiran Alexander Swart is a Laboratory Specialist for Isobar Science and the Beta Analytic department of R&D and joined the company in 2021. His primary roles are in production at Isobar Science carrying out analytical chemistry and ICP-MS / (TC)EA-IRMS analysis for clients, as well as method development for the provision of new services. Keiran has a Bachelor’s degree in Geoscience from the University of Miami and a Master’s degree from Princeton University where he studied marine geochemistry focusing on paleo pCO2 reconstruction and foraminifera micropaleontology.