Zebra rock is a type of banded, sedimentary rock characterized by alternating light and dark stripes, typically composed of siltstone or sandstone. Zebra rock is significant in sedimentology for its unusual patterning, which is believed to result from periodic changes in environmental conditions, including chemical precipitation and deposition in ancient shallow marine environments.
Reference: Coward, A.J., Slim, A.C., Brugger, J., Wilson, S., Williams, T., Pillans, B. and Maksimenko, A., 2023. Mineralogy and geochemistry of pattern formation in zebra rock from the East Kimberley, Australia. Chemical Geology, 622, p.121336.