The Izhora Plateau () is an elevated landform on

Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years f ...

limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...

bedrock in the southwestern part of

Leningrad Oblast Leningrad Oblast (, ; ; ) is a federal subjects of Russia, federal subject of Russia (an oblast). The oblast has an area of and a population of 2,000,997 (2021 Russian census, 2021 Census); up from 1,716,868 recorded in the 2010 Russian census ...

, between the

Gulf of Finland The Gulf of Finland (; ; ; ) is the easternmost arm of the Baltic Sea. It extends between Finland to the north and Estonia to the south, to Saint Petersburg—the second largest city of Russia—to the east, where the river Neva drains into it. ...

in the north and the Luga River in the south. Its northern edge is formed by the erosional cliff known as the Baltic-Ladoga Klint. It is formed by pre-

Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...

rocks.Zhdanov, Sergey & Kurilenko, Vitaly. (2017). Quantitative groundwater estimation of Izhora Plateau, Russian Federation using thermodynamic and kinetic methods for carbonate rock interaction in identified karst terrain. Carbonates and Evaporites. 32. 1-12. The highest part of the plateau is the Orekhovaya hill of

Duderhof Heights Duderhof Heights or Duderhof Hills (; ) is a small highland area in the southwestern part of Saint Petersburg (Krasnoselsky District, Saint Petersburg, Krasnoselsky District). The nearest railway station, Mozhayskaya (formerly Duderhof) of the Lig ...

at 176 m, situated in its extreme northeastern part. The plateau is mostly covered by agricultural lands.

History

It used to be the heartland of the historical region known as

Ingria Ingria (; ; ; ) is a historical region including, and adjacent to, what is now the city of Saint Petersburg in northwestern Russia. The region lies along the southeastern shore of the Gulf of Finland, bordered by Lake Ladoga on the Karelian ...

References

Landforms of Leningrad Oblast Ingria Plateaus of Russia {{LeningradOblast-geo-stub