Anthracite Belt
Quick Summary
The Anthracite Belt refers to the geological formation in northeastern Pennsylvania, United States, where anthracite coal is found. Anthracite is the most metamorphosed form of coal, characterized by a high carbon content (86% or more) and low volatile matter. It has a brilliant, metallic luster and is hard and brittle.
This unique coal formation in Pennsylvania is a result of higher-than-normal heating of sedimentary rocks, likely caused by nearby igneous intrusions or high geothermal gradients. Temperatures between 170 to 250 °C are believed to be necessary for anthracite formation. While anthracite was historically used for domestic heating due to its clean-burning properties, its limited abundance and higher cost have led to a decline in this application, with other energy sources now being more prevalent. Pennsylvania holds the only significant anthracite deposits in the United States, though smaller amounts are found globally.12
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