|
Station G Trench
Trenches were dug with a vertical wall facing the Sun to determine the
soil's ability to maintain a vertical face and to reveal any possible
layering.
Shepard: "I've got a trench here. It's going fairly easily, but I
need the extension handle (which Ed is using at the moment) to get it
deeper so, we'll wait 'til Ed's through with that. I'm cutting
into the rim of a crater which is approximately, oh, say 6 meters in
diameter, has a depth of about three-quarters of a meter ... The trench
is going through at least three layers that I can see. The
fine-grain surface, dark browns; then, a layer of what appears to be
quite a bit of glass; and then, a third layer of some very light
material. And, we should be able to sample all three of these."
|
