27 June 2012

Quartzite

Thrust

Older to younger, now back to older -- thrust fault! [Here comes the rain...]

Upsection or Downsection?

We're hiking up and the beds are steeply dipping, and we end up in a
Dolomite. Overturned? What should be next?

Lancara

Our first close up look at one of the red sandstones, the Lancara. We
see a lot of brachipods and echinoderms here.

Coal

Lots of Carboniferous coal basins in this part of Spain.

Sheep Dogs

Lots of flocks of sheep are left to wander around this wonderful
geology unattended, but for a few dogs to watch after each group.

Day 10

Overview of the Cambrian thru Carboniferous in this area, and
comparison to similar rocks we have seen elsewhere. For instance, the
three reddish beds one can use as markers throughout most of the area;
Lancra, San Pedro (equivalent to the Old Red Sandstone), and Riot.
Also, when we see gorse -- in bloom with yellow flowers at this time
of year -- we are looking at the sandstones.