Friday fauxld: liesegang banding at Giant City - Mountain Beltway

Today, the Friday fold is a fake! Looks like a nice set of asymmetric antiforms and synforms, right? But it ain’t! It’s naturally wiggly; primary not tectonic. The photo shows nothing more than differential erosion of hematite that was deposited by groundwater in permeable sandstone. It’s Liesegang banding! These hematite blobs are in the sandstone at Giant City State Park, south of Carbondale, Illinois. Several are cylindrical in form, presumably …

Splotchy Liesgang banding - Mountain Beltway - AGU Blogosphere

Mountain Beltway - AGU Blogosphere

Friday fauxld: liesegang banding at Giant City - Mountain Beltway - AGU Blogosphere

Liesegang banding in Pennsylvanian sandstones, Bolt Mountain, West Virginia - Mountain Beltway - AGU Blogosphere

Mountain Beltway - AGU Blogosphere

Rocks, moss and muddy tree roots

Liesegang Banding

Liesegang Banding in Southern Illinois - Illinois Botanizer

Mountain Beltway - AGU Blogosphere

Festival du Voyageur gets $50K from province for Fort Gibraltar structural work after walkway collapse

David Dodge's 'False, Frightening Narrative' Suggests 'People Will Die' in Trans Mountain Protests