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Friday Field Foto #19: Trough cross-bedding

May 31, 2007

I’m puttin’ these up a day early because we are actually going on a 4-day field trip starting tomorrow. Yay!This photo is a shot looking down on the bedding plane of cross-bedded sandstone. The pencil is in the area between two migrating arcuate dunes. If you’re lucky enough to get a bedding plane exposure of cross-stratified deposits you can use them as paleocurrent indicators. In this case, the pencil is pointing downstream.
This is in a shallow-marine unit of the Cretaceous in central Utah.

All Friday Field Fotos are taken by me unless otherwise noted.

2 Comments leave one →
  1. sezgihan permalink
    June 3, 2007 1:50 pm


  2. Brian permalink
    June 6, 2007 11:08 am


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