Supplemental Material: Detrital zircon chronofacies and sediment dispersal, Upper Mississi

Four supplemental tables and a figure from a geological study of the Ancestral Rocky Mountains intracratonic orogen. The 5.8 MB dataset includes sample locations, zircon U-Pb geochronologic and Hf isotopic analyses, and age bracket percentages. Author Timothy Lawton last updated the dataset on figshare in April 2026.

Use Cases

• Modeling sediment dispersal patterns based on sample locations and stratigraphic units.
• Analyzing orogenic evolution timelines based on detrital zircon U-Pb geochronologic data.
• Investigating crustal evolution and source terrains using Hf isotopic data.
• Comparing regional sediment provenance based on percentages of detrital zircon grains in age brackets.

Strengths

• Includes multiple data types: sample metadata, geochronologic analyses, isotopic data, and regional summaries.
• Data is structured across four distinct tables, facilitating targeted analysis.
• Contains both published and unpublished samples, potentially expanding available data.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The 5.8 MB size indicates a relatively small dataset, potentially limiting statistical power.

Provenance

Source

figshare, author Timothy Lawton.

Collection Method

Zircon U-Pb geochronologic analyses by laser-ablation–multicollector–inductively coupled plasma–mass spectrometry.

Time Range

Upper Mississippian to middle Permian strata.

Freshness

Last updated 2026-04-28 00:16:06; freshness should be verified.

Geography

Ancestral Rocky Mountains intracratonic orogen, western USA.