National Uranium Resource Evaluation Sediment Chemistry

Conterminous United States sediment chemistry data from the National Uranium Resource Evaluation Hydrogeochemical and Stream Sediment Reconnaissance program. Approximately 260,000 solid samples, including stream, lake, pond, spring, and playa sediments and soils, were analyzed for 11 elements. The data was compiled by the CEOS_EXTRA organization and published in 1996.

Use Cases

• Map regional geochemical baselines for elements like Uranium (U) and Lead (Pb) across the conterminous U.S.
• Identify anomalous concentrations of Arsenic (As) or Copper (Cu) in stream sediments for environmental risk assessment.
• Correlate sediment chemistry features such as Iron (Fe) and Titanium (Ti) with geological formations using sample location data.
• Train models to predict the presence of Uranium (U) based on co-occurring elements like Thorium (Th) and Cerium (Ce).

Strengths

• Approximately 260,000 analyzed samples provide broad spatial coverage.
• Data includes 11 specific elemental concentrations: Na, Ti, Fe, Cu, Zn, As, Ce, Hf, Pb, Th, and U.

Limitations

• Data is temporally stale, with a last update in 1996, limiting contemporary analysis.
• Specific sample counts per element, row counts, and file formats are unknown.
• Geographic coverage is limited to the conterminous United States, excluding Alaska, Hawaii, and territories.

Provenance

Source

National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program.

Collection Method

Chemical analysis of solid samples including stream, lake, pond, spring, and playa sediments, and soils.

Time Range

null

Freshness

1996-01-01

Geography

Conterminous United States.