Submissions
A collection of information used to analyze, calculate, or research a specific topic.
Tools
Software used to analyze, calculate, or research a specific topic.
Presentations
An organized collection of images, graphics, and text used to explain a topic.
Publications
An article that has been printed and made available to the public.

Thermal Maturity Patterns CAI and Ro in the Ordovician and Devonian Rocks of the Appalachian Basin in Pennsylvania

License(s):
Not Specified

The objective of this study is to enhance existing thermal maturity maps in Pennsylvania by establishing: 1) new subsurface CAI data points for the Ordovician and Devonian and 2) new %Ro and Rock Eval subsurface data points for Middle and Upper Devonian black shale units. Thermal maturity values for the Ordovician and Devonian strata are of major interest because they contain the source rocks for most of the oil and natural gas resources in the basin. Thermal maturity patterns of the Middle Ordovician Trenton Group are evaluated here because they closely approximate those of the overlying Ordovician Utica Shale that is believed to be the source rock for the regional oil and gas accumulation in Lower Silurian sandstones (Ryder and others, 1998) and for natural gas fields in fractured dolomite reservoirs of the Ordovician Black River-Trenton Limestones. Improved CAI-based thermal maturity maps of the Ordovician are important to identify areas of optimum gas generation from the Utica Shale and to provide constraints for interpreting the origin of oil and gas in the Lower Silurian regional accumulation and Ordovician Black River-Trenton fields. Thermal maturity maps of the Devonian will better constrain burial history-petroleum generation models of the Utica Shale, as well as place limitations on the origin of regional oil and gas accumulations in Upper Devonian sandstone and Middle to Upper Devonian black shale.

Data and Resources


    html
    Thermal Maturity Patterns in Ordovician and Devonian Rocks of the Appalachian Basin in Pennsylvania
    The objective of this study is to enhance...
    Not Specified

Similar Submissions

Additional Info

Field Value
State active
Ecological Region Terrestrial
Organization USGS
spatial Show Spatial

Submission extent

Map data © OpenStreetMap contributors
Tiles by MapBox