Silt pairs in the old basin bed thicken or thin with the sky lean's command, recording how much ice yielded each cycle to the changing angle.
“Paired clay in basin depths questions how far the lean drew ice back with each command as cold returns to seal the ground.”
“Basin clays tangle their bands where tusk and wind crossed before settling could fix each melt's measure leaving the wheel's lean only half told in stone.”
“Paired bands of silt in deep old beds [...worn by winters...] vary to record the ice yielded each cycle under the lean's command as poles shift their place.”