This study deals with the distribution and morphometry of microforms developed by cyanobacteria colonies on limestone rock surfaces and its relationships with environmental factors. The presences of cyanobacteria colonies and the associated erosive forms has been characterized across a small peninsula (ca. 1 ha) at the NE coast of Mallorca. The results highlight some distribution patterns of these microforms with a preferential location in sheltered areas from prevailing winds and waves (storms) and according to insolation. Major controls on micromorphologies location and development are the microrelief and the medium-scale structural control (i.e joints, rock dipping). Morphometric analyses show that erosional basins related to cyanobacteria colonies have a diameter twice the depth and a trend towards a great horizontal development

Biological rock decay, biogeomorphology, rocky coast, Mallorca

Descomposició biològica rock, biogeomorphology, costa rocosa, Mallorca