title: Lunar hadley rille: considerations of its origin.
abstract: Geomorphology, topographic configuration, comparisons with terrestrial analogs, and considerations of the chemical and physical characteristics of mare lavas indicate that the Hadley Rille is a lava channel. Some of the structure was roofed to form a lava tube, parts of which have subsequently collapsed.
authors.forename: R
authors.initials: R
authors.lastname: Greeley