Thermal Maturity Patterns (CAI and %Ro) in the Ordovician and Devonian Rocks of the Appala

2000 data from a USGS study enhancing thermal maturity maps for the Appalachian Basin in New York. It establishes new subsurface data points for conodont alteration index (CAI) and vitrinite reflectance (%Ro) from Ordovician and Devonian rock units. The data is part of a larger, ongoing project that will include data from several adjoining states.

Use Cases

• Modeling burial and unroofing history based on thermal maturity data points.
• Contouring thermal maturity maps based on new CAI and %Ro subsurface data.
• Analyzing hydrocarbon generation potential based on data from Middle and Upper Devonian black shale units.

Strengths

• Data is part of a larger, ongoing multi-state project, suggesting a broader regional context.
• Enhances existing maps with new subsurface data points for CAI and %Ro.
• Focuses on specific geological units: Ordovician and Devonian rocks, and Middle/Upper Devonian black shales.

Limitations

• Last updated 2000-12-31 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

USGS/OFR 00-496, via nasa_earthdata platform.

Collection Method

Study establishing new subsurface data points from rock samples.

Time Range

Data reflects study published in 2000.

Freshness

Last updated 2000-12-31 23:59:59.999000

Geography

Appalachian Basin in New York, United States.