geomorfГеоморфология и палеогеографияGeomorfologiya i Paleogeografiya2949-17892949-179710.15356/0435-4281-2015-2-77-88geomorf-137Research ArticleНаучные сообщенияShort communicationsНАПРЯЖЕННОСТЬ ГЕОМОРФОЛОГИЧЕСКИХ ОБСТАНОВОК ЦЕНТРАЛЬНОГО СЕКТОРА ГОРНОЙ СИСТЕМЫ АНДGEOMORPHOLOGICAL TENSION OF THE CENTRAL ANDESЛебедеваЕ. В.LebedevaE. V.

Лаборатория геоморфологии

Laboratory of geomorphology

ekaterina.lebedeva@gmail.comМихалёвД. В.MikhalevD. V.

Географический факультет

Geographical Department

mikhalev@kapitelproekt.ruШваревС. В.ShvarevS. V.Институт географии РАН, МоскваРоссияInstitute of Geography RAS, MoscowRussian FederationМосковский государственный университет имени М.В. ЛомоносоваРоссияLomonosov Moscow State UniversityRussian FederationИнститут физики Земли РАН, МоскваРоссияInstitute of Physics of the Earth RAS, MoscowRussian Federation20150904201502Геоморфология7788Copyright © Лебедева Е.В., Михалёв Д.В., Шварев С.В., 20152015Лебедева Е.В., Михалёв Д.В., Шварев С.В.Lebedeva E.V., Mikhalev D.V., Shvarev S.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://geomorphology.igras.ru/jour/article/view/137

Mapping and regional analysis of the “geomorphological tension” were made for the territory of the central fragment of the continental margin mountain system of the Andes (latitude between 5°S - 19°S). We determine the geomorphological tension as a susceptibility of the territory to the development of catastrophic processes. According to the regional level of generalization tension was evaluated in ordinal scores. Assessment was based on the analysis of seismicity, amount of precipitation, the depth of the relief dissection, and the spectrum of the dominant geomorphic processes. On the base of the results of mapping on the scale of 1:8 million it was determined that zone of maximum geomorphological tension is situated at the Western megaslope of the Peruvian Andes between latitudes 9 °S and 13°30'S and in the band width of 100 km from the Pacific coast. Its value here reaches 15-16 scores due to natural causes. The tension on the Eastern megaslope of the Andes ranges from 9 to 12 points, except for some areas where it rises to 13-14, and for the Altiplano where it decrease to 6-10 points. An important feature of the study area is the asymmetric distribution of geomorphological processes and the geomorphological tension, which differ significantly at the oceanic and the inland slopes of the mountain range. Comparison of data obtained for the two segments (NW and SE) of the circum pacific mountain belt allows to conclude about the existence of its geomorphological tension general regularities. The areas of potential catastrophic processes are located near the margin of the continent in either case.

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Mapping and regional analysis of the "geomorphological tension" were made for the territory of the central fragment of the continental margin mountain system of the Andes (latitude between 5°S – 19°S). We determine the geomorphological tension as a susceptibility of the territory to the development of catastrophic processes. According to the regional level of generalization tension was evaluated in ordinal scores. Assessment was based on the analysis of seismicity, amount of precipitation, the depth of the relief dissection, and the spectrum of the dominant geomorphic processes.

On the base of the results of mapping on the scale of 1:8 million it was determined that zone of maximum geomorphological tension is situated at the Western megaslope of the Peruvian Andes between latitudes 9°S and 13°30’S and in the band width of 100 km from the Pacific coast. Its value here reaches 15-16 scores due to natural causes. The tension on the Eastern megaslope of the Andes ranges from 9 to 12 points, except for some areas where it rises to 13-14, and for the Altiplano where it decrease to 6-10 points. An important feature of the study area is the asymmetric distribution of geomorphological processes and the geomorphological tension, which differ significantly at the oceanic and the inland slopes of the mountain range.

Comparison of data obtained for the two segments (NW and SE) of the circum pacific mountain belt allows concluding about the existence of its geomorphological tension general regularities. The areas of potential catastrophic processes are located near the margin of the continent in either case.

геоморфологическая обстановканапряженностькатастрофический процессАндыgeomorphological situationgeomorphological tensiondisasterAndesReferencesКропоткин П.Н., Шахварстова К.А. Геологическое строение Тихоокеанского подвижного пояса // Тр. ГИН. 1965. Вып. 134. 305 с.Kropotkin P.N., Shakhvarstova K.A. Geologic structure of the Pacific mobile belt. Proc. Geol. Inst. Akad. Nauk., 1965, iss. 134, 305 p. (In Russ.).Готванский В.И., Лебедева Е.В. Влияние природных и антропогенных факторов на напряженность геоморфологических процессов на Дальнем Востоке // Геоморфология. 2010. №2 . С. 26–36.Gotvanskiy V.I., Lebedeva E.V. Natural and anthropogenic forces influence on the geomorphologic processes tension on the Far East. Geomorfologiya (Geomorphology RAS), 2010, no. 2 , pp. 26–36 (In Russ.).Лебедева Е.В. Принципы составления карты напряженности геоморфологических процессов окраинно-континентальных горных систем Дальнего Востока // Геоморфология и картография / Мат-лы ХХХШ пленума Геоморфологической комиссии РАН. Саратов: Изд-во СГУ, 2013. С. 507–511.Lebedeva E.V. Principles of plotting the map of geomorphologic processes tension of the Far East continental margin mountain systems, in Geomorfologiya i kartografiya (Proc. XXXIII Meet. Geomorph. Com. Rus. Akad. Nauk). Saratov: Izd-vo SGU (Publ.), 2013, pp. 507–511 (In Russ.).Лебедева Е.В. Природные и техногенные предпосылки напряженности геоморфологических процессов Анд // Геоморфология. 2013. № 4. С. 48–61.Lebedeva E.V. Natural and technogenic prerequisites of the Andes geomorphologic processes tension. Geomorfologiya (Geomorphology RAS), 2013, no. 4, pp. 48–61 (In Russ.).Lebedeva E., Shvarev S., Gotvansky V. Intensity of Geomorphological Processes in NW sector of Pacific Rim Marginal Mountain Belts // EGU General Assembly 2014. Geophysical Research Abstracts. 2014. V. 16. EGU. Р. 8122.Lebedeva E., Shvarev S., Gotvansky V. Intensity of Geomorphological Processes in NW sector of Pacific Rim Marginal Mountain Belts. EGU General Assembly 2014. Geophysical Research Abstracts, 2014, v. 16, EGU, p. 8122.Лебедева Е.В., Шварев С.В., Готванский В.И. Природно-обусловленная напряженность геоморфологических процессов территории Дальнего Востока России // Геоморфология. 2014. № 4. С. 48–59.Lebedeva E.V., Shvarev S.V., Gotvanskiy V.I. Naturally determined tensity of the geomorphologic processes of the Russian Far East territory. Geomorfologiya (Geomorphology RAS), 2014, no. 4, pp. 48–59 (In Russ.).Леонтьев О.К. Геоморфологические типы зон перехода от материка к океану // Вестн. МГУ. Сер. 5. География. 1968. № 2. С. 28–35.Leontyev O.K. Geomorphologic types of zones of transit from continent to ocean. Vestn. Mosk. Univ. Ser. 5, Geogr, 1968, no. 2, pp. 28–35 (In Russ.).Жидков М.П. Морфоструктура континентально-океанических шовных зон Тихоокеанского кольца в связи с прогнозом мест сильных землетрясений (Камчатка, запад Южной Америки): Автореф. дис. … канд. геогр. наук. М.: ИГРАН, 1985. 27 с.Zhidkov M.P. Morfostruktura kontinentalno-okeanicheskikh shovnykh zon Tikhookeanskogo koltsa v svyazi s prognozom mest silnykh zemletryasenij (Kamchatka, zapad Yuznoj Ameriki) (Morphostructure of the continental-marine suture zones of the Pacific belt in connection with the heavy earthquakes zones forecast (the Kamchatka, West of the South America)). PhD Thesis., Moscow: IGRAN (Publ.), 1985, 27 p.Lebedeva E., Mikhalev D., Novoa J., Kladovschikova M. Geomorphological hazard and disasters in the South American Andes // Geography. Environment. Sustainability. 2014. V. 7. № 1. P. 80–98.Lebedeva E., Mikhalev D., Novoa J., Kladovschikova M. Geomorphological hazard and disasters in the South American Andes. Geography. Environment. Sustainability, 2014, v. 7, no. 1, pp. 80–98.Лебедева Е.В., Михалев Д.В., Кладовщикова М.Е. Опасные и катастрофические процессы южноамериканских Анд // Геоморфологи: Новые решения старых проблем. М.: Медиа-ПРЕСС, 2014. С. 43–56.Lebedeva E.V., Mikhalyov D.V., Kladovschikova M.E. Dangerous and catastrophic processes of the South American Andes. Geomorfologi: Novye resheniya starykh problem (Geomorphologists: new solutions of old problems). Moscow: Media-PRESS (Publ.), 2014, pp. 43–56 (In Russ.).Уфимцев Г.Ф. Андская тетрадь (рельеф и морфотектоника Перуанских Анд). М.: Науч. мир, 2011. 164 с.Ufimtsev G.F. Andskaya tetrad’ (relief i morfotektonika Peruanskikh And) (The Andean diary (relief and morphotectonics of the Peruvian Andes). Moscow: Nauch. Mir (Publ.), 2011, 164 p.Новоа Херес Х.Э. Массовые движения грунта на склонах и их влияние на морфогенез западных Анд (Чили) // Геоморфология. 2013. № 2. C. 81–96.Novoa Xeres H.E. Mass ground movements on the slopes and its influence on the Western Andes (Chile) morphogenesis. Geomorfologiya (Geomorphology RAS), 2013, no. 2, pp. 81–96 (In Russ.).Evans S.G. Single-event landslides resulting from massive rock slope failure: characterizing their frequency and impact on society| Landslides from massive rock slope failure. NATO Science Series IV. Earth and Environmental Sciences. Dordrecht, Springer. 2006. V. 49. P. 53–73.Evans S.G. Single-event landslides resulting from massive rock slope failure: characterizing their frequency and impact on society. Landslides from massive rock slope failure. NATO Science Series IV. Earth and Environmental Sciences. Dordrecht, Springer, 2006, v. 49, pp. 53–73.Stillwell D. Natural hazards and disasters in Latin America // Natural Hazards. 1992. № 6. P. 131–159.Stillwell D. Natural hazards and disasters in Latin America. Natural Hazards, 1992, no. 6, pp. 131–159.Завгородняя С.С. Современные геоморфологические процессы и учет их в экологических и хозяйственных целях в Эквадоре: Автореф. дис…. канд. геогр. наук. М.: МГУ, 1996. 43 с.Zavgorodnyaya S.S. Sovremennye geomorfologicheskie protsessy i uchyot ikh v ekologicheskikh i khozyajstvennykh tselyakh v Ekvadore (Contemporary geomorphologic processes and its considering in ecologic and economic purposes in Ecuador). PhD Thesis. Moscow: MGU (Publ.), 1996, 43 p.Ананьев Г.С. Катастрофические процессы рельефообразования. М.: Изд-во МГУ, 1998. 100 с.Ananyev G.S. Katastroficheskie protsessy reliefoobrazovaniya (Catastrophic processes of relief forming). Moscow: Izd-vo MGU (Publ.), 1998, 100 p.Michetti A.M., Esposito E., Gurpinar A. et al. An innovative approach for assessing earthquake intensities based on seismically induced ground effects in natural environment // Memorie descriptive della carta geologica d’Italia. The INQUA scale. 2004. V. 67. 118 p.Michetti A.M., Esposito E., Gurpinar A. et al. An innovative approach for assessing earthquake intensities based on seismically induced ground effects in natural environment. Memorie descriptive della carta geologica d’Italia. The INQUA scale, 2004, v. 67, 118 p.Казаков Н.А. О возможном механизме образования сейсмогенных лавин // Мат-лы гляциологич. исслед. 2000. Вып. 88. С. 102–106.Kazakov N.A. Concerning possible way of forming seismogenic avalanches, in Proc. Glaciolog. Stud., 2000, iss. 88, pp. 102–106 (In Russ.).Movimentos en masa en la region Andina: Una guia para la evaluacion de amenazas / Servicio Nacional de Geologia y Mineria. Publication Geologica Multinacional. 2007. № 4. 432 p.Movimentos en masa en la region Andina: Una guia para la evaluacion de amenazas. Servicio Nacional de Geologia y Mineria. Publication Geologica Multinacional, 2007, no. 4, 432 p.Conozcamos los peligros geologicos en la region Andina / Servicio Nacional de Geologia y Mineria. Publication Geologica Multinacional. 2007. № 5. 78 p.Conozcamos los peligros geologicos en la region Andina. Servicio Nacional de Geologia y Mineria. Publication Geologica Multinacional, 2007, no. 5, 78 p.Перов В.Ф. Селеведение. М.: Геогр. ф-т МГУ, 2012. 272 с.Perov V.F. Selevedenie (Mudflow studies). Moscow: Geogr. F-t MGU (Publ.), 2012, 272 p.Ананьев Г.С. Экзогенные процессы на северо-западе Южной Америки в период Эль-Ниньо 1997–1998 гг. // Изв. РГО. 1999. Т. 131. Вып.4. С. 18–25.Ananyev G.S. Exogenous processes on the North-West of the South America during El-Nino period 1997-1998. Izv. Rus. Geogr. Soc., 1999, v. 131, iss.4, pp. 18–25 (In Russ.).Карта “Степень эколого-геоморфологической опасности современных рельефообразующих процессов”. М-б 1:8000000 / В.М. Котляков. М.: ИГРАН, 2006.Karta «Stepen ekologo-geomorfologicheskoj opasnosti sovremennykh reliefoobrazuyuschikh protsessov» (Map «Level of ecology-geomorphologic hazard of contemporary relief forming processes»). Scale 1:8000000. Ed: V.M. Kotlyakov, IGRAN (Publ.), 2006.Кладовщикова М. Е. Развитие рельефа и рельефообразующие процессы окраинно-материковых гор (на примере Анд): Автореф. дис. ... канд. геогр. наук. М.: МГУ, 2008. 24 с.Kladovschikova M.E. Razvitie relief i reliefoobrazuyuschikh protsessov okrainno-materikovakh gor (na primere And) (Development of relief and relief forming processes of continental margin mountains (in case of the Andes)). PhD thesis, Moscow: MGU (Publ.), 2008, 24 p.Горелов С.К. О проблеме эколого-геоморфологического картографирования (на примере территории Северной Евразии) // Геоморфология. 2008. № 2. С. 61–66.Gorelov S.K. Concerning problem of ecology-geomorphologic cartography (in case of the Northern Eurasia). Geomorfologiya (Geomorphology RAS), 2008, no. 2, pp. 61–66 (In Russ.).Тимофеев Д.А., Былинская Л.Н. Карта оценки эрозионной опасности СССР // Закономерности проявления эрозионных и русловых процессов в различных природных условиях. М.: Изд-во МГУ, 1987. С. 24–25.Timofeyev D.A., Bylinskaya L.N. Map of the USSR erosion hazard, in Zakonomernosti proyavleniya erozionnykh i ruslovykh protsessov v razlichnykh prirodnykh usloviyakh (Regularities of erosional and riverbed processes appearance in different natural conditions). Moscow: Izd-vo MGU (Publ.), 1987, pp. 24–25 (In Russ.).http://eros.usgs.govhttp://eros.usgs.govhttp://gmo.gfz-potsdam.dehttp://gmo.gfz-potsdam.deСоболев Г.А. Оценка сейсмической опасности и сейсмического риска. М.: ОИФЗ РАН, 1997. 54 с.Sobolev G.A. Otsenka sejsmicheskoj opasnosti i sejsmicheskogo riska (Evaluation of seismic hazard and seismic risk). Moscow: OIFZ RAN (Publ.), 1997, 54 p.http://www.esrl.noaa.govhttp://www.esrl.noaa.govGarreaud R., Vuille M., Clement A.C. The climate of the Altiplano: observed current conditions and mechanisms of past changes // Palaeogeography, Palaeoclimatology, Palaeoecology. 2003. № 194. P. 5–22.Garreaud R., Vuille M., Clement A.C. The climate of the Altiplano: observed current conditions and mechanisms of past changes. Palaeogeography, Palaeoclimatology, Palaeoecology, 2003, no. 194, pp. 5–22.Nicholson Sh.E. Dryland climatology. Cambridge Univ.Press. 2011. 516 p.Nicholson Sh.E. Dryland climatology. Cambridge Univ.Press, 2011, 516 p.Angillieri M.Y. Morphometric analysis of Colanguil river basin and flash flood hazard, San Juan, Argentina // Environ Geol. 2008. № 55. Р. 107–111.Angillieri M.Y. Morphometric analysis of Colanguil river basin and flash flood hazard, San Juan, Argentina. Environ Geol., 2008, no. 55, pp. 107–111.Симонов Ю.Г. Балльные оценки в прикладных географических исследованиях и пути их совершенствования // Вестн. МГУ. Сер. 5. География. 1997. № 4. С. 7–10.Simonov Yu.G. Numerical score in applied geographical studies and ways of its enhancement. Vestn. Mosk. Univ. Se. 5 Geogr., 1997, no. 4, pp. 7–10 (In Russ.).Liang W., Zhuang D., Jiang D. et al. Assessment of debris flow hazard using a Bayesian Network // Geomorphology. 2012. V. 171–172. P. 94–100.Liang W., Zhuang D., Jiang D. et al. Assessment of debris flow hazard using a Bayesian Network. Geomorphology, 2012, v. 171–172, pp. 94–100.

The authors declare that there are no conflicts of interest present.