Karren On Quatsino Fm. Dip Slopes Recently Exposed By Deforestation Northern Vancouver Island

Abstract

<p> This study reports on karren forms on limestone dip slopes, which were recently exposed by deforestation on the Quatsino Formation and observable relationships of the karren features of a specific sl~pe are represented as a detailed map. Also, many relationships of gravitomorphic runnel characteristics are analyzed for significance. Runnel types being considered are Hortonian, decantation and composite forms. Solution runnel width, depth and width/depth ratio are studied in association with length. These relationships determine whether the runnel types conform to a theoretical model. Typical aeas·ares of the karren in this area were also recorded. Composite forms are the most abundant because Hortonian and decantation runnels amalgamate beyond about 3m to form composites. All the runnel types, excluding the decanters, illustrate the perfect minimum friction open-channel cross-section. </p>