University of Colorado Boulder

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Presentation transcript:

University of Colorado Boulder New INSTAAR and Geological Sciences Facilities: 1. Organic and Isotope Geochemistry Laboratory 2. CU Boulder Earth Systems Stable Isotope Laboratory Julio Sepúlveda Assistant Professor, Geological Sciences Fellow, Institute for Arctic and Alpine Research (INSTAAR) jsepulveda@colorado.edu Sebastian Kopf Katie Snell University of Colorado Boulder Geological Sciences

CUBES Stable Isotope Laboratory Benson Earth Sciences Focus: Measurement of small abundance isotopologues (e.g. carbonate “clumped” isotope thermometry and method development) for numerous modern and paleo-environmental applications C,H,N,O,S stable isotope ratios of a wide variety of earth materials for applications, including geology, ecology, forensics, microbiology 2. CUBES Stable Isotope Laboratory

Gas source, dual-inlet stable isotope ratio MS Instrumentation Gas source, dual-inlet stable isotope ratio MS High-precision measurement of small abundance isotopologues Primary application: mass-47 of CO2 for determining ancient temperatures of carbonate mineral formation Applications for paleoclimate, tectonics, subsurface fluid flow Thermo MAT253 Plus with custom designed on-line and off-line vacuum CO2 extraction systems 2. CUBES Stable Isotope Laboratory

Thermo Delta V Plus with Gasbench, EA and TCEA Instrumentation Gas source, continuous flow stable isotope ratio MS Elemental Analyzer: wgt % C, N, d13C & d15N of organic matter in sediments, soil, plants and animals; both natural and labeled abundances Headspace Analyzer: Carbonate d13C & d18O; Waters – d13C of DIC; d15N & d18O of nitrates/nitrites High-temperature conversion EA: d18O & dD of bone, fossils, methane and hydrogen gas, & bulk organic matter, volcanic glass Thermo Delta V Plus with Gasbench, EA and TCEA 2. CUBES Stable Isotope Laboratory