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Comporatmiento autoafín de redes de drenaje controladas estructuralmente; caso de estudio río San Cristóbal, Pinar del Río  [Self-affine behavior of structurally controlled river networks; case of study San Cristobal River, Pinar del Rio]

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Alternate Title:Self-affine behavior of structurally controlled river networks; case of study San Cristobal River, Pinar del Rio
Authors:Ramírez-Hernández, Robert; Cáceres-Govea, Dámaso
Author Affiliations:Primary:
Universidad de Pinar del Río, Pinar del Rio, Cuba
Volume Title:Minería y Geología
Source:Minería y Geología, 33(3), p.29-42. Publisher: Instituto Superior Minero Metalurgico, Holguin, Cuba. ISSN: 0258-5979
Publication Date:2017
Note:In Spanish with English summary. 24 refs.; illus., incl. 2 tables, sketch map
Summary:Geological structure influences the form, length and slope of rivers. An approach never used in the area is the fractal analysis for river networks, which allowed to describe and quantify the complexity of this network and associate it to geological structures and faults in the area. Self-similar fractal analysis allowed to prove the unequal river network development in longitudinal and transversal directions. The average fractal value, under self-similarity assumption, is 1,04, indi cating the prevalence of straight superficial currents, tectonically controlled, while the river network fractal dimension takes values of 1,59 and 1,47. Under assumptions of self-affinity, the lacunarity dimension takes the value of 1,86 and the Hurst coe fficient is 0,86, indicating the structural control o n drainage. The main rivers directions coincide with zones of geological weaknesses, originated during the overthrust event, or secondary Riedel fractures related to the left-lateral mo ve ment of Pinar fault.
Subjects:Controls; Digital terrain models; Drainage basins; Drainage patterns; Fluvial features; Fractals; Fractures; Morphometry; Preferential flow; Self-similarity; Stream order; Structural controls; Antilles; Caribbean region; Cuba; Greater Antilles; Pinar del Rio Cuba; West Indies; Artemisa Cuba; San Cristobal River; Sierra del Rosario
Coordinates:N224430 N224900 W0830300 W0830700
Record ID:889927-2
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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