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. 2001 Jun;67(6):2799–2809. doi: 10.1128/AEM.67.6.2799-2809.2001

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FIG. 6 — (A) Comparison of the numbers of aerobic chemoheterotrophs (CFU) and phenol oxidizers expressed per square centimeter of external surface area for crushed basalt extracts (Packed) and fracture faces (Fractured). The values shown are means with 1 standard deviation indicated (n = 5). (B) Comparison of the number of aerobic chemoheterotrophs (CFU) and phenol oxidizers expressed per milliliter for effluent groundwater from crushed-basalt columns (Packed) and that from fractured columns (Fractured). The values shown are means with 1 standard deviation indicated (n = 5).