GEOMORPHOLOGY AND COASTAL DYNAMICS AS ECONOMIC DEVELOPMENT LIMITATIONS OF MATUA ISLAND (CENTRAL KURIL ARCHIPELAGO, EAST RUSSIA)

Kuznetsov, M.A.

Автор: Kuznetsov M.A.
Журнал: Stratigraphy and sedimentology of oil-gas basins. International scientific journal
Номер: 1
Год издания: 2020
Первая страница: 31
Последняя страница: 41
Аннотация: Matua is a small volcanic island in the central part of Kuril Archipelago, SE Russia. Thisstudy aims to demonstrate the new knowledge about geomorphological coast types of MatuaIsland and its dynamics. Matua is the only one of the Central Kuril Islands that has a wideplain territory suitable for settlement. The main goal is to identify the most suitable areas ofthe Matua coastal zone for berths construction. The development of Matua Island is heavilyinfluenced by pyroclastics and lavas. Results of the research show that ¾ of island's coastsare erodes due to its tectonic uplift. But up to 63% of the total coast length are decreasingslowly (first cm per year over the past 30 years). The rest 37% of the coasts that are composedof unconsolidated sediments display significant changes after the last eruption of 2009.The eruption cones are eroded up to 100 m per year and the accumulation in the adjacentbays up to 20 m per year leads to that some of them are completely filled with sediments.Granulometric analysis of accumulative coasts’ sediments and interpretation of space imagesfor the period 2009–2017 helped to identify two areas of long-distance sediment movement tothe SW and NE of the Matua Island. The combination of all those coastal processes such aswave erosion, accumulation, sediment transport and geological settings leaves only one suitablearea on the southeast of the Matua coastal zone for berths construction.
Добавил в систему: Кузнецов Михаил Аркадьевич

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GEOMORPHOLOGY AND COASTAL DYNAMICS AS ECONOMIC DEVELOPMENT LIMITATIONS OF MATUA ISLAND (CENTRAL KURIL ARCHIPELAGO, EAST RUSSIA)статья

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