B--Radiometric analyses - (U-Th)/He Analysis of Goethite
ID: 140G0325Q0212Type: Special Notice
Overview

Buyer

INTERIOR, DEPARTMENT OF THEUS GEOLOGICAL SURVEYOFFICE OF ACQUISITON GRANTSSACRAMENTO, CA, 95819, USA

NAICS

Testing Laboratories and Services (541380)

PSC

SPECIAL STUDIES/ANALYSIS- GEOLOGICAL (B517)

Original Source

https://sam.gov/opp/286b06a38da94b31af4d6285de5b071a/view
Timeline
    Description

    The U.S. Geological Survey (USGS) is seeking to procure specialized (U-Th)/He radiometric analyses of goethite samples, with the intent to award a purchase order to Curtin University of Perth, Australia. This analysis is critical for dating goethite formation in Ni-Co laterite profiles and auriferous channel gravels, which will enhance the USGS's understanding of domestic geological formations. The contractor must possess specific capabilities, including access to a quadropole mass spectrometer and expertise in thermochronometry, with results to be delivered in an Excel format by December 31, 2026. Interested parties may submit technical statements to Elizabeth Adam at eadam@usgs.gov by August 11, 2025, at 12:00 PM ET.

    Point(s) of Contact
    Adam, Elizabeth
    (916) 278-9441
    (916) 278-9339
    eadam@usgs.gov
    Files
    Title
    Posted
    SOW_for_NOI_1.pdf
    The US Geological Survey (USGS) Alaska Science Center requires specialized (U-Th)/He thermochronometry analyses of goethite samples. This technique is crucial for dating goethite formation in Ni-Co laterite profiles and auriferous channel gravels, aiding in understanding critical mineral resources and placer provenance. The work necessitates access to and expertise in a quadropole mass spectrometer (QMS) with a laser heating cell, a clean lab for grain digestion, and an inductively coupled plasma mass spectrometry (ICPMS) for elemental measurements. Custom QMS modifications are often required due to goethite's volatile release. The contractor must have experience in all aspects of goethite (U-Th)/He thermochronometry using these methods. Deliverables include an Excel spreadsheet report with raw data, calculated ages, uncertainties, analysis of standards, and a digital write-up of analytical methods. The estimated period of performance is from award through December 31, 2026.
    SOW_for_NOI_2.pdf
    The US Geological Survey (USGS) Alaska Science Center requires specialized (U-Th)/He thermochronometry analyses of goethite samples. This technique is crucial for dating goethite formation in Ni-Co laterite profiles from southern Oregon and northern California, and auriferous channel gravels in the Sierra Nevada Foothills. The analyses will help the USGS understand domestic Ni-Co laterite formation and determine the provenance of auriferous gravels. The work necessitates access to a quadropole mass spectrometer (QMS) with custom modifications for goethite, a clean lab for sample digestion, and an inductively coupled plasma mass spectrometry (ICPMS) for elemental measurements. The contractor must have expertise in these methods and provide results in an Excel spreadsheet, including raw data, calculated ages, and uncertainties, along with analytical methods documentation. The project is expected to run from the award date through December 31, 2026.
    SSJ_redacted_1.pdf
    SSJ_redacted_2.pdf
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