b. Thick sections photographed in
a. Sample location.
natural light.
c. Thin sections photographed in natural light (right) and between crossed
polarizers (left).
Figure 13. Sample F5, taken about 1.5 m above the deck surface on the face
of the forward bulkhead (scales in millimeters).
values of brine and entrapped air volume calculated at
nificantly denser, leading also to appreciable differences
the in-situ temperature of 7.8C are 7.9 and 18.6%,
in the derived values of the entrapped air and brine vol-
respectively.
umes. Those differences indicate either less brine was
incorporated initially or that the region from which
Sample F5. This is a bulkhead sample (Fig. 13)
sample 5 was collected underwent somewhat greater
obtained 1.5 m above the deck and from the same gen-