Leavitt Lab

Clumped isotope signals of methane as a putative biosignature. 

• Dartmouth team: W. Leavitt (PI), Jiawen Li (PhD student) and V. Nathan (M.S. student)

• Collaborators: E. Young (UCLA), T. McCollom (CU Boulder), & J. Labidi (IPGP)

• Funding: NASA Exobiology

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Clumped isotope signals of methane from non-traditional sources.​

• Dartmouth team: W. Leavitt (PI)

• Collaborators: E. Young (UCLA), X. Zhang (Princeton)

• Funding: Simons Foundation

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Tracking the H-isotopic compositions of archaeal GDGTs in response to energy and the environment.

• Dartmouth team: J. Rhim (postdoc), C. Harris (PhD student), W. Leavitt (PI). 

• Collaborators: S. Kopf (CU Boulder), A. Pearson (Harvard), and F. Elling (Univ. Kiel).

• Funding: NSF-EAR-LowT Geochem. & Geobio.

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Thermoacidophile GDGT cyclization in response to pH and temperature in hot springs 

• Dartmouth team: L. Blum (M.S. student), W. Leavitt (PI), O. Zhaxybayeva (collaborator, Biology)

• Collaborators: E. Boyd & D. Colman (Montana State Univ.), E. Eloe-Fadrosh & M. Kellom (JGI DoE)

• Funding: American Chemical Society, Dartmouth College

 

Mechanisms of GDGT cyclization in Sulfolobus islandicus.

• Led by: B. Chiu (Research Asst./Lab Mgr.), W. Leavitt (PI)

• Collaborators: A. Pearson (Harvard), E. Eggleston (Middelbury Coll). F. Elling (Univ. Kiel),

• Funding: DOE-JGI CSP