Each till has a characteristic average depth of leaching (Figure 8.60), providing no erosion of till has occurred since the beginning of weathering, and no other sediment has been deposited on top to halt the weathering process.
(no other sediment; has been deposited; on top; to halt the weathering process) (Each till; has; a characteristic average depth of leaching) Context(Each till has,List([0, 13))):(Each till; has a characteristic average depth of leaching providing; no erosion of till has occurred since the beginning of weathering)
Each till has,List([0, 13))
no other sediment Each till Each till
has been deposited has has a characteristic average depth of leaching providing
on top to halt the weathering process
a characteristic average depth of leaching
no erosion of till has occurred since the beginning of weathering