Someone mentioned daisy crater chain, how about daisy cutter. A huge daisy cutter the size of a house would leave only a pile of rubble similar to the two towers remains.
“One leading hypothesis holds that the beads were once-molten rock that froze in mid-air after an impact or a volcanic eruption.”
Unusual Spherules on Mars
“made of iron and rock but dubbed blueberries, were found embedded”
A Berry Bowl of Martian Spherules
The beads from a daisy cutter rip through metal, mortar, flesh and leaves a terrible flattened area.
I apologize to the military ones that this would bring back bad memories and places their minds don’t want to go.
The razorbacks are identical to a crumbling structure like what beachcombers see all the time.