Table T2. Rock samples incubated for enrichment cultures and prepared for DNA analysis and electron microscope studies and microspheres evaluated for contamination studies.

Core Depth
(mbsf)
Sample type Enrichment cultures   DNA analysis   SEM/TEM
samples
  Microspheres
Anaerobic Aerobic Microcosm* High pressure Wash Fixed Air dried Exterior Interior
187-1157A-













2R 200.0-206.0










Yes Yes
3R 206.0-215.4 Breccia 9 3 1 Mn X
X X
X


187-1157B-













2R 130.6-138.5 Fine-grained basalt 8 3 1 Fe/S X
X X
X
Yes Yes
4R 143.0-147.8 Chilled margin 8 3 1 Fe/S

X X
X


8R 161.4-166.4 Chilled margin 9 3
X
X X
X
Yes Yes

Notes: * = microcosm for iron and sulfur (Fe/S) or manganese (Mn) redox cycles; SEM = scanning electron microscope; TEM = transmission electron microscopy; † = contamination test; X = samples prepared on board. This table is also available in ASCII format.