Lisa Molofsky
Lisa Molofsky
Lisa Molofsky
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Isotope Analyses: Source Gases<br />
Identified by Pennsylvania DEP and Cabot<br />
Upper and Middle<br />
Devonian Gases<br />
Above Marcellus<br />
Marcellus<br />
Shale Gas<br />
Source Gases<br />
Marcellus<br />
Production Gas<br />
(PA DEP & Cabot)<br />
CO 2<br />
Reduction<br />
Microbial Gas<br />
Thermogenic<br />
Gas<br />
Fermentation<br />
Upper / Middle<br />
Devonian Gas<br />
Above Marcellus<br />
(PA DEP)<br />
Dissolved Gas<br />
Identified as<br />
Upper/Middle<br />
Devonian (PA DEP)<br />
KEY<br />
POINT:<br />
Local Marcellus shale gas may be distinguished from<br />
shallower overlying Upper and Middle Devonian gases.
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