Natural and technogenic factors of violation of natural development of
the Liepaja sandy rerash in Southeast Baltic are considered. Along coast
for many years there has been a stream of substance and energy,
unidirectional to the North. At the beginning of the 20th century after
the reconstruction of the Russian port of Libava and lengthening of
piers for more than 2 km, a stop of sea deposits along the coast
appeared. It caused catastrophic local washout of the coast and bottom.
In result, territorial losses, beach titanium-zirconium rerash,
different types of pollution appeared. By a research it was established:
1. Rate of abrasion (20th century the coast receded to 200 m); 2.
Formation and dynamics of the centers of concentration of heavy
minerals, is defined amount of the useful ore minerals in a productive
size of beach sands (0,2-0,25 mm, an ilmenite, a magnetite, zircon,
rutile, a monocyte, leucoxene; 74% or 1523 kg/m3); 3. Major factors of
change of a condition of coast and bottom of the sea. Also an assessment
of consequences is given to events of World War II and on the Chernobyl
NPP. Illustrations of the article show localization of concentrates of
heavy minerals in a ledge of washout of the coast and on the beach, and
also structure of mean annual coastal streams of substance and wave
energy in technogenic morpholytho-dynamic anomaly at the port of
Technogenic streams, Destruction of coast, Pollution, Ecological state, Baltic sea, Port of Liepaja.
Aibulatov, N.A., 2000. Ecological echo of the cold war in the seas of the Russian arctic. Moscow: GEOS.
Aibulatov, N.A., 2005. Russian activities in the coastal zone and environmental issues. I. A. Osipov Ed. Institute of oceanology. Shirshov. Moscow: Nauka.
Bogdanov, N.A., 1993. Morpho-dynamic aspect of ecology Baltic Sea. Journal of Geomorphology, 3(91): 56–63.
Bogdanov, N.A., 1999. The relief of the coastal dunes and the relative sea level fluctuations. Journal of Geomorphology, 3(115): 63–72.
Bogdanov, N.A., 2015. Models of development of shores and the laws of localization of marine rare metal placers Southeast Baltic Holocene. Fundamental Problems of the Quarter, the Results of the Study and the Main Directions of Further Research: Mater. IX All-Russia. Ings of the Conference. According to Explore. Quaternary. Irkutsk: Publishing House of the Institute Geogr. them. V. B. Sochava, SB RAS. [Irkutsk, 15-20, September 2015]. pp: 57–59.
Bogdanov, N.A., 2016. Echoes of technogenic events on the sea coast in Latvia: Abrasion, formation of scatterings, ecology. Theory and methods of the modern geomorphology. Proceedings. XXXV Plenum of the Geomorphological Commission of RAS. Simferopol: Geographical Faculty of the Taurian Academy of the Crimean Federal University of V.I. Vernadsky [Simferopol, 3-8, October 2016]. pp: 336–341.
Bogdanov, N.A. and A.N. Paranina, 2016. Technogenic changes of natural heritage: Segment of the coast of the Baltic Sea. Natural and cultural heritage: Interdisciplinary researches, preservation and development: Proceedings. V of the International Scientific and Practical Conference of Herzen State Pedagogical University of Russia. St. Petersburg: Publishing House of Herzen State Pedagogical University of Russia. [St. Petersburg:, 27-28, October 2016]. pp: 413–417.
Heavy, 2012. Heavy metals and radionuclides in the environment. Proceedings VII International Scientific-Practical Conference October 4-8, 2012 [Semipalatinsk State Pedagogical Institute, Kazakhstan, Semey], 2: 713.
Meshkov, N.A., E.A. Valtseva, S.I. Ivanov and A.V. Puzanov, 2012. Radiological medical and biological effects of radiation exposure. St. Peterburg: Science.
Sanarov, E.M., B.A. Balandovich and E.F. Kuzmin, 1998. Environmental assessment of radionuclide contamination of medicinal raw materials in the Altai territory and the problem of regulation. Journal of Chemistry of Plant Raw Materials, 1(4): 19–24.
Vinokurov, Y. and M.A. Malgin, 1997. Cesium-137 in soils conjugate landscapes Prisalairya. Ecology and safety of human life in Siberia. Barnaul: Altai State University Press. pp: 45–50.
This study received no specific financial support.
The authors declare that they have no competing interests.
All authors contributed equally to the conception and design of the study.