Photomicrographs were taken of horizontal plug samples chosen for thin sectioning (Pl. AP1).
Each photomicrograph was taken at the same scale (~1.0 cm x ~1.5 cm area).
The photomicrographs are identified by the plug number shown at lower left on each photomicrograph. Thus, the first photomicrograph has the plug number 6 and corresponds to the sample having Code = EHRE and plug number 6 (Site 1193, depth = 157.27 mbsf) in Table T1.