Archeologic sites may be preserved under wind-blown sand and silt, river deposited mud, and coastal sediments of lakes or seas.
(river; deposited; mud) Context(river deposited,List([67, 82))):(Archeologic sites; may be preserved; L:under wind-blown sand and silt)
river deposited,List([67, 82))
river Archeologic sites
deposited may be preserved
mud
L:under wind-blown sand and silt