Šalek Valley
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The Šalek Valley (; sl, Šaleška dolina, german: Schallegger Tal) or the Velenje Basin (; ) is a basin in northern
Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, an ...
in the northeastern pre-alpine foothills. It is named after Šalek Castle near the town of
Velenje Velenje (; german: Wöllan''Leksikon občin kraljestev in dežel zastopanih v državnem zboru,'' vol. 4: ''Štajersko''. 1904. Vienna: C. Kr. Dvorna in Državna Tiskarna, p. 272.) is Slovenia's sixth-largest city, and the seat of the Municipality ...
. The valley lies between the
Kamnik–Savinja Alps The Kamnik–Savinja Alps ( sl, Kamniško-Savinjske Alpe) are a mountain range of the Southern Limestone Alps. They lie in northern Slovenia, except for the northernmost part, which lies in Austria. The western part of the range was named the Ka ...
to the west, the
Pohorje Pohorje (), also known as the Pohorje Massif or the Pohorje Mountains (german: Bachergebirge, ''Bacherngebirge'' or often simply ''Bachern''), is a mostly wooded, medium-high mountain range south of the Drava River in northeastern Slovenia. Acco ...
Mountain Range to the east, and the
Sava Hills The Sava Hills ( sl, Posavsko hribovje) are the eastern part of the Slovene Prealps. They are oriented in the east-west direction and are located to the north and south of the Sava River in central and eastern Slovenia, among the Ljubljana Basin ...
to the south. It has a northwest-southeast orientation and is approximately 8 km long and 2 km wide. It contains a number of rivers and lakes. The Paka River runs through Velenje, with a number of tributaries from the northwest: Trebušnica Creek, Veriželj Creek and Slatina Creek. The Paka itself eventually flows into the
Savinja The Savinja () is a river in northeast Slovenia which flows mostly in the Upper and Lower Savinja Valley ( sl, Zgornja in Spodnja Savinjska dolina) and through the cities of Celje and Laško. The Savinja is the main river of the Savinja Alps (Sl ...
River. The valley is separated from the
Upper Savinja Valley The Savinja () is a river in northeast Slovenia which flows mostly in the Upper and Lower Savinja Valley ( sl, Zgornja in Spodnja Savinjska dolina) and through the cities of Celje and Laško. The Savinja is the main river of the Savinja Alps (Sl ...
() and Lower Savinja Valley () by the Golte Plateau, the Skorno Hills (, peaks along the Paka including Mount Oljka, and the Ponikva Plateau (). Especially on the north, the valley is closed in by a chain of high mountains, from northeast to northwest: Paka Mount Kozjak with its peaks Basališče (1272 m) and Špik (1108 m), Smodivnik (923 m), Stropnica (880 m), Vodemlja (780 m), Ljubela (779 m), Mount Graška (, 825 m), the Krištan Pasture ( sl, Krištanova planina) (654 m), Big Peak (), and Stakne Peak (, 1258 m). The highest peaks rise beyond these: Mount Saint Ursula (, 1699 m; also named ''Plešivec''), and Smrekovec (1577 m). The northern border of the valley meets the
Karawanks The Karawanks or Karavankas or Karavanks ( sl, Karavanke; german: Karawanken, ) are a mountain range of the Southern Limestone Alps on the border between Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: ...
mountain range, and this northern area of the valley therefore has the fewest road connections. The southern part of the valley is less mountainous, and is surrounded by lower mountains and hills such as Wine Mountain () to the northeast. The southern edge along the Ložnica Hills arose along the geologically important Šoštanj Fault, allowing the valley road access towards the east. The town of Velenje is also located at the end of this eastern opening. Because of
mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic via ...
in the vicinity of Velenje,
subsidence Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope move ...
results in water flooding the resulting basins and creating lakes. The largest lake is Lake Velenje () and nearby Lake Družmirje () and Lake Škale (), approaching the Paka to the south at the western end of the valley, where the town of
Šoštanj Šoštanj (; german: Schönstein) is a town in northern Slovenia. It is the seat of the Municipality of Šoštanj. The area is part of the traditional region of Styria. The entire municipality is now included in the Savinja Statistical Region. Hi ...
is located. The Šalek Valley formed in the late
Cenozoic The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configura ...
era, during the
Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
period. Faults started to appear at this time due to
epeirogenic movement In geology, epeirogenic movement (from Greek ''epeiros'', land, and ''genesis'', birth) is upheavals or depressions of land exhibiting long wavelengths and little fold (geology), folding apart from broad undulations. The broad central parts o ...
, vertically lifting and lowering the surface. Ridges formed and the ground sank, and
lignite Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35%, and is considered the lowest rank of coal due to its relatively low heat ...
deposits started to form between the sand and loam.''Geografski obzornik: časopis za šolsko geografijo'' 42, p. 16 These brown coal deposits represent the great majority of the mineral wealth of this area. Besides the
Ljubljana Marsh The Ljubljana Marsh ( sl, Ljubljansko barje), located south of Ljubljana, the capital of Slovenia, is the largest marsh in the country. It covers or 0.8% of the Slovene territory. It is administered by the Municipalities of Slovenia, municipaliti ...
, the Šalek Valley is one of the tectonically youngest basins in Slovenia.


References

{{DEFAULTSORT:Salek Valley Structural basins of Slovenia Sedimentary basins of Europe Depressions (geology) Landforms of Styria (Slovenia)