Zur Verbreitung von Blockgletschern in den semiariden Anden (Chile/Argentinien, 32-35°S): Bedeutung, regionale Trends und der Einfluss des Reliefs

BRENNING, ALEXANDER; TROMBOTTO, DARIO; SCHRÖDER, HILMAR

Berliner Geographische Arbeiten

Verlag des Geographischen Institutes der Humboldt-Universität zu Berlin

Lugar: Berlin; Año: 2005 vol. 100 p. 19 - 27

1430-4775

The semiarid Andes between Santiago and Mendoza are among the mountain areas with highest rock glacier densities in the world, according to statistical estimation based on digital elevations models and aerial photographs. Intact rock glaciers are most abundant between 3500 and 4000 m a.s.l., with an offset of approximately +250 m on the Argentinian sid e. Rock glacier distribution is determined by mainly by morphographic factors and in the highest parts of the Andes restricted by modern glaciation. As a consequence, the most regular distribution or “rock glacier pattern” is found in the Argentinian Cordón del Plata. South of 34.5°S, rock glaciers become less important mainly due to lower topography, holocene volcanism and increasing fluvial dynamics. Rock glacier distribution consequently ends between 35°15’ and 35°25’S. highest rock glacier densities in the world, according to statistical estimation based on digital elevations models and aerial photographs. Intact rock glaciers are most abundant between 3500 and 4000 m a.s.l., with an offset of approximately +250 m on the Argentinian sid e. Rock glacier distribution is determined by mainly by morphographic factors and in the highest parts of the Andes restricted by modern glaciation. As a consequence, the most regular distribution or “rock glacier pattern” is found in the Argentinian Cordón del Plata. South of 34.5°S, rock glaciers become less important mainly due to lower topography, holocene volcanism and increasing fluvial dynamics. Rock glacier distribution consequently ends between 35°15’ and 35°25’S. highest rock glacier densities in the world, according to statistical estimation based on digital elevations models and aerial photographs. Intact rock glaciers are most abundant between 3500 and 4000 m a.s.l., with an offset of approximately +250 m on the Argentinian sid e. Rock glacier distribution is determined by mainly by morphographic factors and in the highest parts of the Andes restricted by modern glaciation. As a consequence, the most regular distribution or “rock glacier pattern” is found in the Argentinian Cordón del Plata. South of 34.5°S, rock glaciers become less important mainly due to lower topography, holocene volcanism and increasing fluvial dynamics. Rock glacier distribution consequently ends between 35°15’ and 35°25’S. highest rock glacier densities in the world, according to statistical estimation based on digital elevations models and aerial photographs. Intact rock glaciers are most abundant between 3500 and 4000 m a.s.l., with an offset of approximately +250 m on the Argentinian sid e. Rock glacier distribution is determined by mainly by morphographic factors and in the highest parts of the Andes restricted by modern glaciation. As a consequence, the most regular distribution or “rock glacier pattern” is found in the Argentinian Cordón del Plata. South of 34.5°S, rock glaciers become less important mainly due to lower topography, holocene volcanism and increasing fluvial dynamics. Rock glacier distribution consequently ends between 35°15’ and 35°25’S. highest rock glacier densities in the world, according to statistical estimation based on digital elevations models and aerial photographs. Intact rock glaciers are most abundant between 3500 and 4000 m a.s.l., with an offset of approximately +250 m on the Argentinian sid e. Rock glacier distribution is determined by mainly by morphographic factors and in the highest parts of the Andes restricted by modern glaciation. As a consequence, the most regular distribution or “rock glacier pattern” is found in the Argentinian Cordón del Plata. South of 34.5°S, rock glaciers become less important mainly due to lower topography, holocene volcanism and increasing fluvial dynamics. Rock glacier distribution consequently ends between 35°15’ and 35°25’S.