SOW_140G0324Q0215_Rock_Analysis_1.docx
DOCX document 31 KB Posted
- Attached to
- Rock Analysis Federal contract opportunity
- Solicitation number
- 140G0324Q0215
About this file
This document is a Statement of Work (SOW) for a federal contract opportunity issued by the US Geological Survey (USGS) to acquire U-Th-Pb, trace element/REE, and Lu-Hf data from 10 rock samples.
The SOW requires the contractor to have experience in all aspects of mineral separation and zircon petrochronology using split-stream laser ablation (LASS) methods. The contractor must provide at least 50 analyses per rock sample, with both raw and interpreted data in a report format. The contractor will also ship the mineral separates and any unprocessed, left-over rock to USGS. The period of performance is from September 2024 to September 2025.
The related federal contract opportunity is a Request for Information (RFI) seeking information from firms capable of providing the required data analysis services in accordance with the SOW. The solicitation number is 140G0324Q0215, and the contracting agency is the Department of the Interior US Geological Survey Office of Acquisitions and Grants.
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US Geological Survey
Statement of Work
1.0 INTRODUCTION
The USGS needs to acquire U-Th-Pb, trace element / REE, and Lu-Hf data from 10 rock samples.
2.0 BACKGROUND
The USGS conducts research on regional geology and mineral resources. This involves making geologic maps of the area being investigated and reconstructing the tectonic and metallogenic history. Uranium-lead (U-Pb) zircon petrochronology, or age determination coupled with chemical characterization, is one of the most important laboratory techniques used in this line of research. The samples submitted for zircon petrochronology analysis will help us elucidate the geologic evolution of critical mineral ore systems in the United States.
3.0 SCOPE
Zircon petrochronology first requires preparation of the rock sample to obtain a mineral separate. This involves crushing the rock, sieving the crushed sample, concentrating the mineral zircon using heavy liquids, and using a Frantz magnetic separator. The zircons are picked, mounted in epoxy, and imaged using Backscatter Electron (BSE) and Cathodoluminescence (CL). The U-Pb/Lu-Hf / trace + REE petrochronology requires expertise in the use of split-stream laser ablation (LASS), and access to appropriate lab facilities. The age, Lu/Hf, and trace element and REE abundance of each analyzed zircon is calculated from the analytical data, which come in spreadsheet format.
4.0 TECHNICAL REQUIREMENTS
The contractor shall have experience in all aspects of mineral separation and zircon petrochronology using LASS methods. For each rock sample that is submitted, at least 50 analyses will be obtained.
5.0 DELIVERABLES
The contractor shall provide deliverables in a report for each sample in spreadsheet format, with both the raw and interpreted data included. The report shall include analysis of standards and a write-up of analytical methods shall be available (in digital form, as a Word document to USGS on request. The contractor will ship the mineral separates and any unprocessed, left-over rock to USGS.
6.0 PERIOD OF PERFORMANCE:
September 2024, to September 20251 SEPTEMBER 2024 TO 30 SEPTEMBER 2025
7.0 SUPPORTING INFORMATION
A) Government Provided Samples:
The USGS will ship intact rock samples to the vendor in one shipment.
b) Place of Performance:
Analyses will be completed at vendor’s facility.
File details come from the government source that posted it. Updated .