uranium-lead geochronologic analyses of mineral se

The US Geological Survey Office of Acquisitions and Grants is seeking uranium-lead geochronologic analyses of mineral separates through this solicitation. The work involves U-Pb dating of existing mineral separates and potentially additional samples, which could include either U-Pb ages for igneous rocks or detrital zircon analysis of sedimentary rocks. Contractors must demonstrate expertise in mineral separation and zircon geochronology, possess specific analytical equipment including laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) capabilities, and provide comprehensive reporting of analytical data in Excel spreadsheet format. The evaluation will be based on capability, experience, past performance, and price. Quotations are due by July 21, 2025 at 1700 PD, with no further questions or extensions allowed after the amendment that addressed contractor inquiries.

This opportunity is designated as a total small business set-aside under NAICS code 541990 with a size standard of $19.5 million. The initial scope includes four existing mineral separates with potential for up to four additional samples depending on initial analysis results. The period of performance extends from August 1, 2025 to July 31, 2026, providing contractors with a full year to complete the analytical work. Delivery is specified as FOB Destination, and contractors must be registered in the System for Award Management with a Unique Entity Identification number. The place of performance appears to be related to the USGS Alaska Science Center, though samples will be delivered to the contractor's facility for analysis.