Aaron M. Jubb Mark A. Evans 2024 <p><span>Fluid inclusion microthermometry and Raman spectroscopy of fluid inclusions in quartz veins from the Pennsylvanian rocks of the Anthracite belt, eastern Pennsylvania support a deep burial model of coalification in favor of focused orogenic hot fluid flow. High-temperature (250 to 255 °C) trapping of CH</span>₄<span> ± CO</span>₂<span>&nbsp;saturated aqueous fluids and CH</span>₄<span> ± CO</span>₂<span>&nbsp;inclusions indicate fluid trapping at depths of 11.5 to 13.4 km under a cover of Pennsylvanian to Permian(?) syntectonic load. In the folded rocks to the south of the Anthracite belt, CH</span>₄<span> ± CO</span>₂<span>&nbsp;fluid inclusions indicate a sediment load that was up to 16.3 km thick.&nbsp;</span><i>Re</i><span>-equilibrated aqueous fluid inclusions from veins in Silurian through Devonian rocks give the same range of trapping conditions but a wide range of fluid salinities suggesting that folding, fracturing, and meteoric recharge resulted in the intermixing of fluids from throughout the stratigraphic succession.</span></p> application/pdf 10.1016/j.coal.2024.104646 en Elsevier Deep syntectonic burial of the Anthracite belt, Eastern Pennsylvania article