Chlorine-36 Cosmogenic Isotope Calibration Project in Iceland

L Y N G U A L T I E R I ' S R E S E A R C H I C E L A N D
Home Wrangel Island Iceland Funding Project Summary Publications resulting from this research Links Svalbard India Far Eastern Russia Little Diomede Island Ellesmere Island Kamchatka Cosmogenic Isotope Research Quaternary Research Center	Chlorine-36 Cosmogenic Isotope Calibration Project in Iceland Onland extension of the mid-Atlantic ridge at Ţingvellir in southwestern Iceland.
	Funding Icelandic Fulbright Commission U.S. Fulbright Commission Project Summary This is a work in progress that I started in March 1999 while on a Fulbright scholarship to Iceland. Ninteen samples were collected from five well-dated lava flow surfaces all around Iceland for a ³⁶Cl cosmogenic isotope calibration study. A high latitude calibration site for ³⁶Cl does not exist, yet is neccesary in order to verify global cosmogenic ³⁶Cl production rate estimates. Iceland was chosen as the study area due to its ubiquitous volcanic rocks, known numerical ages of uncovered and instantaneously exposed surfaces as well as its climatically sensitive position in the North Atlantic Ocean. High resolution records from the North Atlantic Ocean, Norwegian Sea and Greenland Ice Cap have set the stage for detailed work in this part of the world, however, numerically-dated terrestrial warming and cooling events from Iceland are lacking. By analyzing 19 samples from 5 surfaces it will be determined whether ³⁶Cl cosmogenic isotope dating is a viable technique to be used in Iceland on postglacial lava flows, erratics on moraines or marine shorelines. Investigation of potential sites, fieldwork and sample collection was carried out from March-December 1999 with funding from the Fulbright Commission of the United States and Iceland. Samples are presently being prepared for AMS analysis. Publications resulting from this research Kong, P., Finkel, R.C., Caffee, M., Gualtieri, L. and Nishiizumi, K. 2000. ¹⁰Be in Lava Newly Erupted at Hekla, South Iceland. American Geophysical Union program with Abstracts. San Francisco, California. Links The University of Iceland The Science Institute of Iceland The Nordic Volcanological Institute
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