The Basin Analysis & Helium Thermochronology Laboratory (BAHTL) houses analytical instrumentation and sample preparation facilities to support research in (U-Th)/He thermochronology.

The BAHTL is partially funded through the National Science Foundation EAR/IF Laboratory Technician Support program (Award 1735492) to provide optimal operation of advanced instrumentation, analytical protocol development, and user training for Earth sciences research. The BAHTL welcomes researchers and their students with research interests in (U-Th)/He thermochronology.

We invite students and researchers to arrange a visit to perform their own sample preparation and helium isotope measurements. BAHTL personnel provide training to faculty, postdocs, and student researchers on how to prepare samples and operate equipment to collect analytical data. Alternatively, we prepare samples and operate the equipment on behalf of the researcher.



Currently, our facility accommodates (U-Th)/He analysis of apatite and zircon. Analytical services and costs are based on whether or not the service is performed by the visiting researcher or by BAHTL staff.  Contact Dr. Julie Fosdick ( or Dr. Megan Mueller ( to discuss your project, request more information on analytical rates, and arrange a visit. Our facility is an AGeS2 Lab and you can find our lab profile here.



The University of Connecticut resides within the territory of the Mohegan, Mashantucket Pequot, Eastern Pequot, Schaghticoke, Golden Hill Paugussett, Nipmuc, and Lenape Peoples.