Dott on Wacke

Here Dott opines on wacke, and on graywack. And that’s not all: “Wacke, graywacke and matrix; what approach to immature sandstone classification?” Robert H. Dott [pictured here], Journal of Sedimentary Research 34, no. 3 (1964): 625-632. “It is suggested that sedimentary rock classification systems have become confused because factors of genesis related to tectonics, provenance, […]