Quad Spiral Valley
Robert P. Munafo, 1997 Jan 14.
Colloquial name for the cusps between R2a and R2.1/4a, or their mirror image (the cusps between R2a and R2.3/4a). See R2.C(1/4) for pictures.
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 1987-2017. Mu-ency index
This page was written in the "embarrassingly readable" markup language RHTF, and was last updated on 2017 Feb 02. s.11