Attached and unattached bacterial communities in a 120-meter corehole in an acidic, crystalline rock aquifer.

ABSTRACT: The bacteria colonizing geologic core sections (attached) were contrasted with those found suspended in the groundwater (unattached) by examining the microbiology of 16 depth-paired core and groundwater samples using a suite of culture-independent and culture-dependent analyses. One hundred twenty-two meters was continuously cored from a buried chalcopyrite ore hosted in a biotite-quartz-monzonite porphyry at the Mineral Park Mine near Kingman, Ariz. Every fourth 1.5-m core was acquired using microbiologically defensible methods, and these core sections were aseptically processed for characterization of the attached bacteria. Groundwater samples containing unattached bacteria were collected from the uncased corehole at depth intervals corresponding to the individual cores using an inflatab

SUBMITTER: Lehman RM 

PROVIDER: S-EPMC92842 | biostudies-literature | 2001 May

REPOSITORIES: biostudies-literature