is the informal term given to this sharply-pinnacled surface texture found on carbonates in arid climates (it's actually a form of micro-karst; click to enlarge). And it's appropriately named, too. I sure wouldn't want to take a tumble on this surface, especially in shorts and t-shirt.
Where was this photo taken? Just curious...
ReplyDeleteI snapped this shot yesterday while hoofing it up the Portal trail. The block is from a bed in the Kayenta Formation, and others were similarly weathered and scattered about.
ReplyDelete