Soil and Ice Core Analysis from Columnar and Pearce Valleys

Ice cores and soil profile samples were collected from Columnar Valley and Pearce Valley to determine the origin of massive ground ice and its potential for paleoclimate data. The collection includes samples from 6 pits in Columnar Valley and 16 pits in Pearce Valley, with three of the latter also cored. The dataset was produced by SCIOPS and last updated in December 2002.

Use Cases

• Correlate stable oxygen and hydrogen isotope ratios from ice cores with paleoclimate models.
• Analyze major anion and cation chemistry of soluble salts from soil samples to understand sediment-ice relationships.
• Use 10Be cosmogenic isotope dating on ice cores to estimate the age of ground ice formations.
• Apply Optical Stimulated Luminescence dating on selected soil samples to determine sediment deposition timelines.
• Compare chemical analysis results between pit soil profiles and ice cores from Columnar and Pearce Valleys.

Strengths

• Data includes multiple analysis methods: isotope dating, luminescence dating, and chemical analysis.
• Samples collected from 22 distinct pits across two geographic locations.

Limitations

• Dataset is temporally stale, with last update in 2002.
• Specific sample counts, row counts, and column details are unknown.
• Geographic coverage is limited to two specific valleys.

Provenance

Source

SCIOPS via NASA EarthData.

Collection Method

Field collection of shallow ice cores and soil profile samples from dug pits, followed by laboratory chemical and isotopic analysis.

Geography

Columnar Valley and Pearce Valley.