title: Mawson "tillite" in antarctica: preliminary report of a volcanic deposit of jurassic age.
abstract: Reexamination of the Mawson "Tillite" (Jurassic) of Antarctica indicates that the deposit is of volcanic origin and consists largely of both primary and reworked volcanic materials. No evidence diagnostic of a glacial origin was found.
authors.forename: H W
authors.initials: HW
authors.lastname: Borns
authors.forename: B A
authors.initials: BA
authors.lastname: Hall