For detailed sample submission guidelines, it is recommended to contact the PIs directly.
Julia Cole, PACE lab
δ13C and δ18O of carbonates (coral, foraminifera, fossils, sedimentary rocks, bulk sediment, teeth, bones, otoliths, apatite, speleothems, etc)
Per sample basis. Analyzed via Kiel IV prep device, Thermo Delta Plus mass spec with d13C stdev ≤0.05, d18O stdev ≤0.10. Typically 40 samples per day.
- University of Michigan researchers (internal academic): $13 / sample for CaCO3; bulk discount of $10 / sample for >100 samples
- Other (external) academic / university researchers: $20 / sample; bulk discount of $18 / sample for >100 samples
- Corporate / industry rate: $25 / sample
Elemental analysis (acidified fluids, coral, fossils, sedimentary rock, teeth, bones, soils, speleothems, etc. Should be free from non-acidified particles)
Daily analysis rates – typically 100+ samples per day. Analyzed via Thermo iCAP ICP-OES, with elemental options of calcium, strontium, magnesium, barium, manganese, iron, titanium, zinc, phosphorus, etc.
- University of Michigan researchers (internal academic): minimum $730 per day or bulk discount of $7 / sample for >100 samples
- Other (external) academic / university researchers: $10 / sample for batches >100 samples, inquire (kdyez@umich.edu) about smaller batch sizes.
- Corporate / industry rate: $1800 / 100 samples
Sierra Petersen, SCIPP lab
Clumped isotope analysis of carbonates
Clumped isotope analyses in the SCIPP lab are carried out on a Nu Perspective with automated NuCarb preparation device in one of two modes. Bellows mode uses 3-4mg per replicate with 3 replicates recommended. Coldfinger mode uses 280-400ug per replicate with 5-6 replicates recommended. We currently have capabilities for calcite, aragonite, and dolomite (CF mode only). Impure samples like sediments should only be run in bellows mode, with an estimation of %CaCO3 to guide sample size. Bellows mode is preferred for precision and timing reasons if enough material is available.
As the clumped isotope measurement is still not a “routine” analysis, and requires complicated data processing, we tend to treat external work as a collaboration, not a contract. External users pay for analyses, but typically have 1-2 SCIPP Lab members as coauthors (depending on the sample prep required on our end) to help with data processing and interpretation of uncertainty. Contact Professor Petersen (sierravp@umich.edu) and Lab Manager Justin VanDeVelde (justinvv@umich.edu) to discuss collaborative/analysis agreements and specifics of your sample set (# samples, mineralogy, purity, amount of material available, state of prep).
- SCIPP Lab users: $40/replicate
- University of Michigan non-SCIPP Lab users (internal academic): $40/replicate with collaborative agreement
- Other academic / university researchers (external academic): $65/replicate with collaborative agreement
- Corporate / industry: $160/replicate with or without collaborative agreement
Kyger C. (Kacey) Lohmann Stable Isotope Lab
