Figure 2: Quantification of metabolites identified by 1H NMR and chloride in fluids from Marcellus and Utica hydraulically fractured shales (for additional data see Supplementary Table 1). | Nature Microbiology

Figure 2: Quantification of metabolites identified by 1H NMR and chloride in fluids from Marcellus and Utica hydraulically fractured shales (for additional data see Supplementary Table 1).

From: Microbial metabolisms in a 2.5-km-deep ecosystem created by hydraulic fracturing in shales

Figure 2

Time 0 on the x axis denotes input HF fluids, with the time the Utica well was shut in shown as grey shading. Marcellus fluids are denoted by solid lines and Utica fluids by dashed lines. For the Utica, initial chloride values were estimated based on the freshwater source (grey dashed line). MMA concentrations are shown with two axes, with the left axis for Marcellus fluids (solid lines) and the right axis for Utica fluids (dashed lines).

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