MORPHOGENETIC DIFFERENTIATION OF THE SHORES OF THE CONTACT ZONES OF THE NORTH PACIFIC

Section
The evolution of the hydrosphere
  • Victor V. Afanas’ev Institute of Marine Geology and Geophysics, FEB RAS, Yuzhno-Sakhalinsk, Russia
  • Evgeniy I. Ignatov Lomonosov Moscow State University, Moscow, Russia
  • Alexey V. Uba Institute of Marine Geology and Geophysics, FEB RAS, Yuzhno-Sakhalinsk, Russia
Keywords: Kuril Islands, Aleutian Islands, Chuginadak Island, Iturup Island, coastal morphodynamics, ground penetrating radar

The results of the analysis of geospatial and geological-geomorphological information on the shores of the contact zones of the North Pacific are presented. An analysis of the maps of the morphogenetic types of coasts of the North Pacific revealed the specifics of the coastal morpholithogenesis of the seas of subarctic and moderate zones. It has been established that for the seas of the North Pacific, a two-modal distribution of the length of coasts of various types is characteristic. The first maximum relates to abrasion-denudation rocky shores, with a significant contribution to the destruction of physical weathering. The second peak is formed by abrasive-accumulative shores. A similar distribution of coast types along with structural and geological features of the coastal structure is probably associated with various stages of coastal maturity under conditions of intense denudation destruction of the coasts of the seas, characterized by a prolonged “open sea” period at negative air temperatures. The morphoclimatic position (geospatial parameters and the related differences in morpholithodynamic parameters) of Sakhalin Island and the island arc systems of the North Pacific allowed us to consider them as contact zones of different types of seas, as well as seas and oceans. The morpholithodynamic characteristics of the shores of contact zones along with the features of hydrodynamics and the thermal regime of the shared water areas also determine the morphoclimatic parameters of the contact zone itself. The Sakhalin shores of the moderately cold northern part of the Sea of Japan and the Subarctic Sea of Okhotsk are
30-140 km apart, while the oceanic and marine shores of large islands in island-arc systems separate the first kilometers. Thus, the windwave fields and their interaction with swell waves in the contact zones are very complex. The temperature regime of the coasts also largely depends on the geospatial parameters of the contact zones. Based on the map of morphogenetic types of coasts, the distribution features of coastal types from the sea and ocean side of island-arc systems are digitized and considered. Cartometric and morphometric studies in conjunction with the data of geological and geomorphological analysis revealed the peculiarities of development and modern dynamics of the sea and ocean coasts of island-arc systems. It is assumed that the longitudinal asymmetry of the low isthmus between the ocean and sea shores is due to tsunamigenic processes.

Alekseev B.A. Golubev G.N. Global'naya model' sovremennykh landshaftov mira [The global model of modern landscapes of the world]. In D'yakonov K.N., Romanova E.P. (eds.) Geografiya, obshchestvo, okruzhayushchaya sreda. Tom 2. Funktsionirovanie i sovremennoe sostoyanie landshaftov [Geography, society and environment. Vol. 2. Functioning and current state of landscapes]. Moscow, Publ. Dom «Gorodets», 2004, pp. 319-326. (In Russian).

Archikov E.I. Osobennosti formirovaniya rel'efa beregov Tikhogo okeana v subarkticheskom i umerennom klimaticheskikh poyasakh [Features of the formation of the relief of the Pacific coast in the subarctic and temperate climatic zones]. Issledovaniya global'nykh faktorov klimorfogeneza Dal'nego Vostoka: sbornik trudov [Research of global factors of climorphogenesis of the Far East: a collection of works]. Vladivostok: Publ. of Far Eastern Scientific Center of the USSR Academy of Sciences, 1979, pp. 70-78. (In Russian).

Afanas'yev V.V. O novom tipe eolovogo morfogeneza na vulkanogennykh beregakh (o. Iturup, Bol'shaya Kuril'skaya gryada) [A new type of aeolian morphogenesis on volcanic shores (Iturup island, Great Kuril ridge)] Geosistemy perekhodnyh zon [Geosystems of Transition Zones], 2019, vol. 3, no. 4, pp. 423-427. (In Russian; abstract in English).

Baklanov P.Y. Geograficheskie i geopoliticheskie faktory v regional'nom razvitii [Geographic and Geopolitical Factors in Regional Development]. Regional'nye issledovaniya [Regional Studies], 2014, no. 2, pp. 4-10. (In Russian; abstract in English).

Dzerdzeevskii B.L. Obshchaya tsirkulyatsiya atmosfery i klimat [General atmospheric circulation and climate]. Moscow, Publ. Nauka, 1975. 288 p. (In Russian).

Diakonov K.N., Varlygin D.A., Retejum A.Yu. [Impact of the oceans on geographical zones studied by the remote sensing data on photosynthesis]. Vestnik Moskovskogo universiteta. Seriya 5: Geografiya. [Moscow University Bulletin. Series 5. Geography], 2017, no. 2, pp. 11-15. (In Russian; abstract in English).

Lisogurskii N.I., Petrichev A.Z. Rasprostranenie mussona nad Vostochnoi Aziei i stepen' ego ustoichivosti [Distribution of the monsoon over East Asia and the degree of its stability]. Meteorologiya i gidrologiya [Russian Meteorology and Hydrology], 1980, no. 5, pp. 54-59. (In Russian).

Likhacheva E.A., Timofeyev D.A. K ierarkhii geomorfologicheskikh sistem s pozitsii ikh organizovannosti [To the hierarchy of geomorphologic systems from the angle of their organization]. Geomorfologiya [Geomorphology], 2007, no. 4, pp. 3-8. (In Russian; abstract in English). DOI: 10.15356/0435-4281-2007-4-3-8.

Likhacheva E.A., Timofeyev D.A. Analiz geomorfologicheskikh sistem: osnovnye ponyatiya [Analysis of geomorphic systems: the fundamental notions]. Geomorfologiya [Geomorphology], 2008, no. 2, pp. 4-21. (In Russian; abstract in English). DOI: 10.15356/0435-4281-2008-2-14-21.

Likhacheva E.A., Makkaveyev A.N., Lokshin G.P. Fizicheskaya sushchnost' geomorfologicheskikh granits [Physical nature of geomorphologic boundaries] Geomorfologiya [Geomorphology], 2010, no. 2, pp. 3-10. (In Russian; abstract in English). DOI: 10.15356/0435-4281-2010-2-3-10.

Natsional'nyi atlas Rossii: v 4-kh tomah. Tom 2: Priroda i ekologiya [National Atlas of Russia: in 4 ch. Chapter 2 Environment (Nature). Ecology]. A.V. Borodko, V.N. Aleksandrov, V.M. Kotlyakov, N.G. Rybal'skii et al. (eds.). Moscow, Publ. Kartografiya, 2007. 496 p. (In Russian).

Nikol'skaya V.V., Skryl'nik G.P. Tendentsii razvitiya rel'efa prirodnykh zon i provintsii Dal'nego Vostoka [Trends in the development of the relief of natural zones and provinces of the Far East]. In G.P. Skryl'nik (ed.) Klimaticheskaya geomorfologiya Dal'nego Vostoka [Climatic geomorphology of the Far East]. Vladivostok: Publ of Pacific Institute of Geography Far Eastern Scientific Center of the USSR Academy of Sciences, 1976, pp. 5-19. (In Russian).

Skryl'nik G.P. Vedushchie klimaticheskie faktory razvitiya ekzogennogo rel'efa [Leading climatic factors of the development of exogenous relief]. Geosistemy Dal'nego Vostoka Rossii na rubezhe XX−XXI vekov. Tom. 1. Prirodnye geosistemy i ikh komponenty [Geosystems of Far East of Russia on boundary of XX-XXI centuries. Chapter 1. Natural geosystems and their components]. Vladivostok: Publ. Dal'nauka, 2008, pp. 77-81. (In Russian).

Skryl'nik G.P. Osnovnye urovni ustoichivosti v obshchei organizatsii geosistem Zemli [The basic levels of stability in the general organization of the geosystems of the Earth] Uspekhi sovremennogo estestvoznaniya [Advances in current natural sciences], 2017, no. 11, pp. 101-106. (In Russian; abstract in English).

Skryl'nik G.P. Anomal'nye prirodnye protsessy i yavleniya Rossiiskogo Dal'nego Vostoka [Dangerous natural processes and phenomena the Russian Far East] Uspekhi sovremennogo estestvoznaniya [Advances in current natural sciences], 2018, no. 10, pp. 114-124. (In Russian; abstract in English).

Tunegolovets V.P., Gartsman B.I., Krokhin V.V. Klimat i gidrografiya [Climate and hydrography]. Geosistemy Dal'nego Vostoka Rossii na rubezhe XX−XXI vekov. Tom. 1. Prirodnye geosistemy i ikh komponenty [Geosystems of Far East of Russia on boundary of XX-XXI centuries. Chapter 1. Natural geosystems and their components]. Vladivostok: Publ. Dal'nauka, 2008, pp. 119–143. (In Russian).

Afanas’ev V.V., Ignatov E.I., Uba A.V, Dunaev N.N., Leontiev I.O. Gorbunov A.O. Vetrovoy isthmus of iturup island – holocene strait. IOP Conference Series: Earth and Environmental Science. 2019. Vol. 324. III National scientific conference with foreign participants "Geodynamical Processes and Natural Hazards" 27–31 May 2019, Yuzhno-Sakhalinsk, Russian Federation. DOI: 10.1088/1755-1315/324/1/012029

Griswold F.R., MacInnes B.T., Higman B. Tsunami-based evidence for large eastern Aleutian slip during the 1957 earthquake. Quaternary Research, 2019, vol. 91, iss. 3, pp. 1045-1058. DOI: 10.1017/qua.2018.39

Mallinson D.J., Smith C.W., Culver S., Riggs S.R., Ames D. Geological characteristics and spatial distribution of paleo-inlet channels beneath the outer banks barrier islands, North Carolina, USA. Estuarine, Coastal and Shelf Science, 2010, vol. 88, iss. 2, pp. 175-189. DOI: 10.1016/j.ecss.2010.03.024

Neal A. Ground-penetrating radar and its use in sedimentology: principles, problems and progress. Earth-science reviews, 2004, vol. 66, iss. 3-4, pp. 261-330. DOI: 10.1016/j.earscirev.2004.01.004


Abstract views: 3
PDF Downloads: 0
Published
2020-09-03
How to Cite
Victor V. Afanas’ev, Evgeniy I. Ignatov, & Alexey V. Uba. (2020). MORPHOGENETIC DIFFERENTIATION OF THE SHORES OF THE CONTACT ZONES OF THE NORTH PACIFIC. Hydrosphere. Hazard Processes and Phenomena, 2(2), 158-172. https://doi.org/10.34753/HS.2020.2.2.158

Downloads

Download data is not yet available.