Filter by location Clear
Map data © OpenStreetMap contributors
Tiles by Stamen Design (CC BY 3.0)
Directional drilling and hydraulic-fracturing technologies are dramatically increasing natural-gas extraction. In aquifers overlying the Marcellus and Utica shale formations of...
A geochemical context for stray gas investigations in the northern Appalachian Basin: Implications of analyses of natural gases from Neogene-through Devonian-age strata As the...
Dataset Size: 1,007.87 KB
Cleavage duplexes are zones of platy, spaced cleavage, that either parallel bedding or ramp through shale sections. Examples are 2-60 m thick. The cleavage within the zones is...
Dataset Size: 1.959 MB
Brines having moderate to high salt content (up to 343 grams per liter [g/L]) occupy most pore spaces in rocks below a depth of a few thousand feet in Pennsylvania and are...
Dataset Size: 1.432 MB
Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction Horizontal drilling and hydraulic fracturing are transforming energy...
Dataset Size: 3.111 MB
Large quantities of highly saline brine flow from gas wells in the Marcellus Formation after hydraulic stimulation (‘‘fracking’’). This study assesses the composition of these...
Dataset Size: 1.817 MB
A PowerPoint presentation by John A Harper about the Marcellus Shale.
Dataset Size: 720.462 KB
Dataset Size: 4.83 MB