Skip to content

Friday Field Foto #17: Clast imbrication

May 18, 2007

Today’s field photograph comes from the Valley of Fire region in Nevada. A few years ago we organized a student-led field trip to this area to check out some of the fantastic geology on display.

This particular photo shows nice clast imbrication in a Cretaceous alluvial fan sequence. Note the three clasts just below the pencil stacked on each other showing the paleocurrent direction to the right. If you go hike around on a modern alluvial fan or stream with cobbles in it, you will likely find small piles of imbricated clasts just like this.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Advertisements
No comments yet

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s