# U-Th/He Thermochronology Analyses of Samples

Canonical: https://abierto.us/opportunities/140g0126q0181

- Solicitation number: 140G0126Q0181
- Notice type: Presolicitation (first published as solicitation)
- Status: Awarded to University of Connecticut
- Department: Department of the Interior
- Agency: US Geological Survey
- Contracting office: Ofc of Acqusition Grants-National (140G01)
- NAICS: 541380 Testing Laboratories and Services
- Product or service code: B517 Geological Studies
- First posted: July 21, 2026
- Last posted: July 21, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/eb761db59b8d4fdc81a40420d61a051d/view

## Description

The U.S. Geological Survey intends to award a non-competitive purchase order to University of Connecticut, Basin Analysis & Helium Thermochronology Laboratory (UConn), for the U-Th)/He thermochronology analyses of forty zircon and apatite samples to help quantify rock uplift rates in Alaska. This is required for the Alaska Basins and Petroleum Systems project of the Geology, Energy, and Minerals Science Center/Minerals Program, Reston, VA.

Service is for a one-year period beginning September 30, 2026. UConn has unique capabilities and facilities including: the principal investigator has expertise in analytical techniques and modeling/interpretation of data that other labs cannot provide. UConn also has access to and expertise in the three different facilities required for (U-Th)/He Analyses. First, a quadropole mass spectrometer (QMS) with a laser heating cell for Helium extraction and measurement.

Second, a clean lab for grain digestion in nitric acid or hot hydrofluoric acid. And third, an inductivity coupled plasma mass spectrometry (ICPMS) for Uranium, Thorium, and Samarium measurements. Furthermore, UCONN has performed these analyses as part of an ongoing study collaboration for the past several years and it is imperative to use the same laboratory for consistency of results in our research. The NAICS code is 541380. The size standard is $19 million.

In accordance with FAR 5.207, all responsible sources may submit a bid, proposal or quotation which shall be considered by the agency; however, THIS NOTICE IS FOR INFORMATIONAL PURPOSES ONLY. THIS IS NOT A REQUEST FOR COMPETITIVE PROPOSALS. The proposed action may be awarded on a sole source basis under the authority of Revolutionary FAR Overhaul (RFO) 12.102(a). All responses must be emailed to sruggles@usgs.gov.

## Award on USAspending

- Recipient: University of Connecticut (UEI WNTPS995QBM7)
- Contract: 140G0126P0286, purchase order
- Obligated: $28,900.00
- Competition: Not Competed Under SAP, 1 offers received
- Link: solicitation number 140G0126Q0181 equals the FPDS solicitation identifier; same awarding office 140G01 (high confidence)
- Record: https://www.usaspending.gov/award/CONT_AWD_140G0126P0286_1434_-NONE-_-NONE-/


## Publications

- July 21, 2026: Solicitation, due June 22, 2026 at 5:00 PM EDT. Notice 448af72845e741bf8de56464798b3b29. https://sam.gov/workspace/contract/opp/448af72845e741bf8de56464798b3b29/view
- July 21, 2026: Presolicitation, due July 28, 2026 at 5:00 PM EDT. Notice eb761db59b8d4fdc81a40420d61a051d. https://sam.gov/workspace/contract/opp/eb761db59b8d4fdc81a40420d61a051d/view

## Points of contact

- Ruggles, Susan, sruggles@usgs.gov, 1234567890

---
Source: SAM.gov Contract Opportunities bulk extract and USAspending.gov award data. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/140g0126q0181.