- These are small grooves cut directly into the rock surface, generally a few centimeters wide and deep. Their size remains the same or decreases downslope and usually exhibit small meanders with typical undercut slopes and slip-off slopes. They frequently appear in the bottom of larger grooves such as rinnenkarren .Synonym: (German.) Mäanderkarren.
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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Karren — (German.) Channels or furrows, caused by solution on massive bare limestone surfaces; they vary in depth from a few millimeters to more than a meter and are separated by ridges. In modern usage, the terms are general, describing the total… … Lexicon of Cave and Karst Terminology
wall karren — These are found on vertical walls as a result of water flowing down the walls without any area wide moistening although area wide sprinkling occasionally influences their development . See also meandering karren; humus water grooves … Lexicon of Cave and Karst Terminology
humus-water grooves — This is a special type of meandering karren or wall karren in which the water originated in humus covering. Water originating from a humus cover has an excess of CO2 and is therefore, very aggressive and can dissolve large amounts of limestone … Lexicon of Cave and Karst Terminology