Historical variations in erosion-sedimentation rates of an anthropized lake body: use of radioisotope geochronology.
Keywords:
erosion, sedimentation, lake areas, radioisotope geochronologyAbstract
This research studies, by means of radioisotope geochronology (Pb210), the historical variations in the erosion-sedimentation process in Laguna Chica de San Pedro, VIII Region. Chronological estimates indicate that during the last 100 years, sediment input from the drainage basin oscillated drastically by an order of magnitude. It is concluded that the variations are a product of historical changes in land use. Finally, three historical periods are proposed that would have caused the increase in soil erosion in the basin.
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References
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APPLEBY P.C.: J. A. DEARING & F. OLDFIELD (1985): Magnetic studies de erosion in a Scottish lake catchment: Part 1, core chronology and correlation. Limnol. Oceanogr . 30:1144-1153.
APPLEBY P.C. & F. OLDFIELD (1992): Application of Lead-210 to sedimentation studies. En: Uranium-series disequilibrium. Applications to earth, marine and
environmental sciences 2th. Edition. (M. Ivanovich and R. Harmon Eds.) Oxford Science Publication. 910 PP.
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CRlCKMORE M.J., P.C. TAZIOLI, P.C. APPLEBY & F.
OLDFIELD (1990): The use of nuclear techniques in sediment transport and sedimentation problems. Technical Documents in Hydrology. International Hydrological Programme IHP-111-5, UNESCO, París. 170 pp.
CRUSIUS. J. & R.F. ANDERSON (1995A): Sediment focusing in six small lakes inferred from radionuclide profiles. Journal of Paleolimnology, 13: 143-155.
DI CASTRI, F. (1968): Esbozo ecológico de Chile. In Bilogie de L'Amerique australe. Deboutteville, C. & E. Rapopon (Eds.). Centre National de la Recherche Scientifique. 34 pp.
DORR. H. (1995): Application of Z'OPb in soils. Journal of Paleolimnology, 13: 157-168.
EAKINS. J.D. (1983): The 210Pb technique for dating sediments, and some applications. United Kingdom Atomic Energy Agency. AERE (R 10821) Harwell, Oxfordshire, England. 22 pp.
ILABACA, G. (1978): Transgresión marina reciente en el litoral de Concepción. Antecedentes morfológicos. Seminario taller sobre desarrollo e investigación de los recursos marinos, VI11 Región. Universidad de Concepción, Chile.
LEONE, N.G., L. URBANI & H. FOX (1993): Cuadro Estratégico territorial de la recuperación y desarrollo de la cuenca del Biobío. F. Faranda & O. Parra (Eds.) Serie EULA Propuestas de Ordenamiento, Vol. 1. 351 pp.
LIEHU, A,, O. SANDAN & H. SIMOLA (1986): Effects of peatbog ditching in lakes: Problems in paleolimnological interpretation. Hydrobiologia, 143: 417-424.
OLDFIELD. F. & R. THOMPSOM (1978): Evidence of recent geomagnetic secular variation in lake sediments from the New Guinea Highlands. Physics of the Earth and Planetary Interiors, 17:300-306.
OLLEY, J. M. & A.S. MURRAY (1994): Origins of variability in the 230Thl232Th ratio in sediments. Variability in stream erosion and sediment transport
(Proceedings of the Camberra Symposium). IAHS Publ. 224: 103-1 10.
PARRA, 0. (1989): La eutroficación de la Laguna Grande de San Pedro, Concepción, Chile: Un caso de estudio. Ambiente y Desarrollo, 5(1): 1 17-136.
POURCHET, M. & J.F. PINCLOT (1989): Cesium 137 and Lead 210 in alpine lake sediments: measurements and modeling of mixing pmcesses. Journ. Geophys.
Research, 94: 1276 1-1 2770.
POURCHET. M.. P. MOURGUIART, J.F. PINGLOT. N. PREISS, J. ARGOLLO & D. WIRRMANN. (1994): Sedimentation recente dans le Iac Titicaca (Bolivie). C.R. Acad. Sci. Paris 319535-541.
RADAKOVITCH, M.O. (1995): Etude du transfer et du dCpot du matériel particulaire par le 2'0Po et le zio~b Application aux marges continentales du Golfe de
Gascone (NE Atlantique) et du Golfe de Lion (NW MCditerranCe). Thése de doctorat de L'UniversitC de Perpignan. 54 pp.
SAYNOR, M.J., R.J. LOUGHRAM, W.D. ERSKINE & P.F. SCOTT (1994): Sediment movement on hillslopes measured by Cesium-137 and erosion pins. Variability
in stream erosion and sediment transport (Proceedings of the Camberra Symposium). IAHS Publ. 224: 87-93.
SPLIETHOFF. H. & H. HEMOND (1996): History of toxic metal discharge to surface waters of the Aberjona watershed. Environmental Science and Technology.
30: 121-128.
WALLBRINK, P.J., J.M. OLLEY & A.S. MURRAY (1994): Measuring soil mevement using I3'Cs: implications of reference site variability. Variability in stream erosion and sediment transpon (Proceedings of the Camberra Symposium). lAHS Publ. 224:95-102.
APPLEBY P.C.: J. A. DEARING & F. OLDFIELD (1985): Magnetic studies de erosion in a Scottish lake catchment: Part 1, core chronology and correlation. Limnol. Oceanogr . 30:1144-1153.
APPLEBY P.C. & F. OLDFIELD (1992): Application of Lead-210 to sedimentation studies. En: Uranium-series disequilibrium. Applications to earth, marine and
environmental sciences 2th. Edition. (M. Ivanovich and R. Harmon Eds.) Oxford Science Publication. 910 PP.
APPLEBY P.C.: V.J. JONES & J.C. ELLIS-EVANS (1995): Radiometric dating of lake sediment from Signy Island (maritime Antarctic): evidence of recent climatic change. Journal of Paleolimnology, 13: 179- 191.
AUER, M.; A. JOHNSON; M. PENN & S. EFFLER (1996): Pollutant sources. depositional environment, and surficial sediments of Onondaga lake, NY. J. Environ. Qual.. 25:46-55.
BARRIENTOS, J. C. (1990): Estructura dinámica de la vegetación en la hoya hidrográfica de la laguna Chica de San Pedro. Facultad de Cs. Biológicas y Recursos Naturales, Universidad de Concepción. 23 pp.
BATTARBEE R.W.; P.C. APPLEBY; K. ODELL & R.J.FLOWER (1985): Pb2"' dating of Scottish lakes sediments, afforestation and accelerated soil erosion. Earth Surf. Proc. Land.. 10: 137-142.
BINFORD. M.W., M. BRENNER & D.R. ENGSTROM (1991): Patrones de sedimentación temporal en la zona litoral del Huiñaimarca. En: El lago Titicaca. C.
Dejoux & A. Iltis (Eds.). ORSTOM-Hisbol, La Paz, Bolivia. 584 pp.
CRlCKMORE M.J., P.C. TAZIOLI, P.C. APPLEBY & F.
OLDFIELD (1990): The use of nuclear techniques in sediment transport and sedimentation problems. Technical Documents in Hydrology. International Hydrological Programme IHP-111-5, UNESCO, París. 170 pp.
CRUSIUS. J. & R.F. ANDERSON (1995A): Sediment focusing in six small lakes inferred from radionuclide profiles. Journal of Paleolimnology, 13: 143-155.
DI CASTRI, F. (1968): Esbozo ecológico de Chile. In Bilogie de L'Amerique australe. Deboutteville, C. & E. Rapopon (Eds.). Centre National de la Recherche Scientifique. 34 pp.
DORR. H. (1995): Application of Z'OPb in soils. Journal of Paleolimnology, 13: 157-168.
EAKINS. J.D. (1983): The 210Pb technique for dating sediments, and some applications. United Kingdom Atomic Energy Agency. AERE (R 10821) Harwell, Oxfordshire, England. 22 pp.
ILABACA, G. (1978): Transgresión marina reciente en el litoral de Concepción. Antecedentes morfológicos. Seminario taller sobre desarrollo e investigación de los recursos marinos, VI11 Región. Universidad de Concepción, Chile.
LEONE, N.G., L. URBANI & H. FOX (1993): Cuadro Estratégico territorial de la recuperación y desarrollo de la cuenca del Biobío. F. Faranda & O. Parra (Eds.) Serie EULA Propuestas de Ordenamiento, Vol. 1. 351 pp.
LIEHU, A,, O. SANDAN & H. SIMOLA (1986): Effects of peatbog ditching in lakes: Problems in paleolimnological interpretation. Hydrobiologia, 143: 417-424.
OLDFIELD. F. & R. THOMPSOM (1978): Evidence of recent geomagnetic secular variation in lake sediments from the New Guinea Highlands. Physics of the Earth and Planetary Interiors, 17:300-306.
OLLEY, J. M. & A.S. MURRAY (1994): Origins of variability in the 230Thl232Th ratio in sediments. Variability in stream erosion and sediment transport
(Proceedings of the Camberra Symposium). IAHS Publ. 224: 103-1 10.
PARRA, 0. (1989): La eutroficación de la Laguna Grande de San Pedro, Concepción, Chile: Un caso de estudio. Ambiente y Desarrollo, 5(1): 1 17-136.
POURCHET, M. & J.F. PINCLOT (1989): Cesium 137 and Lead 210 in alpine lake sediments: measurements and modeling of mixing pmcesses. Journ. Geophys.
Research, 94: 1276 1-1 2770.
POURCHET. M.. P. MOURGUIART, J.F. PINGLOT. N. PREISS, J. ARGOLLO & D. WIRRMANN. (1994): Sedimentation recente dans le Iac Titicaca (Bolivie). C.R. Acad. Sci. Paris 319535-541.
RADAKOVITCH, M.O. (1995): Etude du transfer et du dCpot du matériel particulaire par le 2'0Po et le zio~b Application aux marges continentales du Golfe de
Gascone (NE Atlantique) et du Golfe de Lion (NW MCditerranCe). Thése de doctorat de L'UniversitC de Perpignan. 54 pp.
SAYNOR, M.J., R.J. LOUGHRAM, W.D. ERSKINE & P.F. SCOTT (1994): Sediment movement on hillslopes measured by Cesium-137 and erosion pins. Variability
in stream erosion and sediment transport (Proceedings of the Camberra Symposium). IAHS Publ. 224: 87-93.
SPLIETHOFF. H. & H. HEMOND (1996): History of toxic metal discharge to surface waters of the Aberjona watershed. Environmental Science and Technology.
30: 121-128.
WALLBRINK, P.J., J.M. OLLEY & A.S. MURRAY (1994): Measuring soil mevement using I3'Cs: implications of reference site variability. Variability in stream erosion and sediment transpon (Proceedings of the Camberra Symposium). lAHS Publ. 224:95-102.
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CISTERNAS, M., ARANEDA, A. ., RETAMAL, O., & URRUTIA, R. (2021). Historical variations in erosion-sedimentation rates of an anthropized lake body: use of radioisotope geochronology. Revista De Geografía Norte Grande, (24), 151–156. Retrieved from https://analesliteraturachilena.letras.uc.cl/index.php/RGNG/article/view/41651
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