Pete - The Instructor
Sketch completed 12 February 2003
Drawing Copyright by Ulrich Lotzmann. All rights reserved.
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134:40:23 Bean: The original crater (meaning Surveyor Crater) took it down to bedrock and then, I guess, more recently then, this one (meaning Block Crater) came in here and really banged it out. These blocks are a lot more sharp-cornered than any we've seen anywhere else. I guess this must be the most recent one we've been around. 134:40:40 Conrad: Now, I got the idea that the bedrock's not too deep (that is, the bedrock is not covered by much regolith), and that this (Surveyor Crater) was a big crater but it's very, very, very, very old. And then this thing came along and hit it... 134:40:50 Bean: That's right. 134:40:51 Conrad: ...and broke into the side of the bedrock that's been sticking out into this... 134:40:55 Bean: Yeah, and then threw it all out again. 134:40:55 Conrad: ...original crater, and threw it all out again. |
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