Embargoed and Restricted Access
Reason: Under embargo until 30 December 2023. After this date a copy can be supplied under Section 51(2) of the Australian Copyright Act 1968 by submitting a document delivery request through your library.
How the zebra rock got its stripes: the formation of hematite banding in Western Australian siltstones
thesisposted on 2022-12-14, 00:34 authored by ANDREW JEREMY COWARD
Zebra rock and print stone are patterned Western Australian siltstones renowned for their highly unusual hematite banding. The origin of zebra rock in particular has been highly debated over the last century, but as of yet, no consensus has been reached. This thesis examined a large number of zebra rock and print stone samples in order to determine the origin of these mysterious patterns. We discovered that the banding of these rocks arose through a self-organisational process called Liesegang banding, which was likely triggered by the ascent of acidic, hydrothermal fluids from deep beneath the surface.