High-Precision CA-ID-TIMS U-Pb Geochronology

This contract seeks a subcontractor to perform high-accuracy uranium-lead geochronology on selected zircon grains using chemical abrasion-isotope dilution-thermal ionization mass spectrometry, a method requiring precise laboratory protocols and expert handling of radioactive materials. The work involves the systematic preparation of zircon samples through chemical abrasion to remove radiation-damaged areas, followed by isotope dilution to establish accurate isotopic ratios and TIMS analysis to measure uranium and lead isotopes with exceptional precision. All procedures must be conducted in accordance with established standards and vetted by representatives from the US Geological Survey to ensure compliance with federal scientific and analytical benchmarks. The solicitation is posted as a subcontract under NAICS code 541380, indicating it falls under scientific and technical consulting services, with a response deadline of June 26, 2026, at 9:00 PM. It is issued by the Office of Acquisition Grants within the Department of the Interior, with no set-aside classification specified. The place of performance and point of contact details are not provided, suggesting logistical arrangements and communication protocols will be defined during subcontract negotiation. Completion of this work is critical to advancing geochronological research supported by federal agencies and requires proven expertise in radiometric dating techniques and experience working within government-regulated scientific frameworks.