Friday, September 12, 2014

Geo 730: September 12, Day 620: Liesegang 2

In early October of 1989, I was hired to do some geochemical reconnaissance mapping and sampling in this area. (See this post for some more information.) It involved following 200 foot contours (constant elevation), collecting samples from the soil B-horizon every 200 feet laterally, flagging sample sites, and mapping those locations as we went. One of the contours my field partner Mark and I were assigned happened to be at approximately the same elevation as this access road, which has been the subject of the photos in this series for the last week or so. The road itself was problematic- there's no undisturbed soil below the upper edge of the cut, and below the road, it's difficult to tell what's fill from road construction and what is undisturbed. As I recall, we tried to sample above the road cut mostly, but scrambling up and down those cuts was difficult at best.

If it hadn't been for that job, I wouldn't have found these spots. That would've been a shame.

Photo unaltered. June 14, 2014. FlashEarth Location.

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