| Rokua National Park | |
|---|---|
 | |
  Location in Finland | |
| Location | Northern Ostrobothnia, Finland |
| Coordinates | 64°33′22″N26°30′36″E / 64.55611°N 26.51000°E |
| Area | 8.8 km2 (3.4 sq mi) |
| Established | 1956 |
| Visitors | 23500(in 2009 [1] ) |
| Governing body | Metsähallitus |
| Website | www |
Rokua National Park (Finnish : Rokuan kansallispuisto) is a UNESCO Global Geopark in the Northern Ostrobothnia region of Finland.
The national park is located on the southern side of the Rokuanvaara Hill, where old pine forests grow in their natural state. The park lies within the municipalities of Vaala, Muhos and Utajärvi and in between the cities of Oulu and Kajaani.
The bedrock of the Baltic Shield as well as Quaternary landforms are displayed within the park. Amongst the glacial landforms found in the park are: [2]
Post-glacial development has left berms, ravines, dunes and peat bogs in the park area. [2]
Syvyydenkaivo, "the Well of the Depths", is the deepest kettle hole in Finland, [3] with a measured depth of more than 164 feet (50 m). [4]
A kame delta is a glacial landform formed by a stream of melt water flowing through or around a glacier and depositing material, known as kame deposits. Upon entering a proglacial lake at the end (terminus) of a glacier, the river/stream deposit these sediments. This landform can be observed after the glacier has melted and the delta's asymmetrical triangular shape is visible. Once the glacier melts, the edges of the delta may subside as ice under it melts. Glacial till is deposited on the lateral sides of the delta, as the glacier melts.
A kame, or knob, is a glacial landform, an irregularly shaped hill or mound composed of sand, gravel and till that accumulates in a depression on a retreating glacier, and is then deposited on the land surface with further melting of the glacier. Kames are often associated with kettles, and this is referred to as kame and kettle or knob and kettle topography. The word kame is a variant of comb, which has the meaning "crest" among others. The geological term was introduced by Thomas Jamieson in 1874.
A kettle is a depression or hole in an outwash plain formed by retreating glaciers or draining floodwaters. The kettles are formed as a result of blocks of dead ice left behind by retreating glaciers, which become surrounded by sediment deposited by meltwater streams as there is increased friction. The ice becomes buried in the sediment and when the ice melts, a depression is left called a kettle hole, creating a dimpled appearance on the outwash plain. Lakes often fill these kettles; these are called kettle hole lakes. Another source is the sudden drainage of an ice-dammed lake and when the block melts, the hole it leaves behind is a kettle. As the ice melts, ramparts can form around the edge of the kettle hole. The lakes that fill these holes are seldom more than 10 m (33 ft) deep and eventually fill with sediment. In acid conditions, a kettle bog may form but in alkaline conditions, it will be kettle peatland.
The North Pennines is the northernmost section of the Pennine range of hills which runs north–south through northern England. It lies between Carlisle to the west and Darlington to the east. It is bounded to the north by the Tyne Valley and to the south by the Stainmore Gap.
Kvarken is the narrow region of the Gulf of Bothnia separating the Bothnian Bay from the Bothnian Sea. The distance from the Swedish mainland to the Finnish mainland is around 80 km (50 mi), while the distance between the outermost islands is only 25 km (16 mi). The water depth in the Kvarken region is only around 25 metres (82 ft). The region also has an unusual rate of land rising at almost 10 mm a year.
Glacial landforms are landforms created by the action of glaciers. Most of today's glacial landforms were created by the movement of large ice sheets during the Quaternary glaciations. Some areas, like Fennoscandia and the southern Andes, have extensive occurrences of glacial landforms; other areas, such as the Sahara, display rare and very old fossil glacial landforms.
A terminal moraine, also called an end moraine, is a type of moraine that forms at the terminal (edge) of a glacier, marking its maximum advance. At this point, debris that has accumulated by plucking and abrasion, has been pushed by the front edge of the ice, is driven no further and instead is deposited in an unsorted pile of sediment. Because the glacier acts very much like a conveyor belt, the longer it stays in one place, the greater the amount of material that will be deposited. The moraine is left as the marking point of the terminal extent of the ice.
Bow Valley Provincial Park is a provincial park in Alberta, Canada. Established in 1959 in the arch of the Bow River at its confluence with the Kananaskis River, the park is one park of many within the Kananaskis Country park system.
Interstate Park comprises two adjacent state parks on the Minnesota–Wisconsin border, both named Interstate State Park. They straddle the Dalles of the St. Croix River, a deep basalt gorge with glacial potholes and other rock formations. The Wisconsin park is 1,330 acres (538 ha) and the Minnesota park is 298 acres (121 ha). The towns of Taylors Falls, Minnesota and St. Croix Falls, Wisconsin are adjacent to the park. Interstate Park is within the Saint Croix National Scenic Riverway and the Ice Age National Scientific Reserve. The western terminus of the Ice Age National Scenic Trail is on the Wisconsin side. On the Minnesota side, two areas contain National Park Service rustic style buildings and structures that are listed on the National Register of Historic Places.
The Kettle Moraine State Forest is a state forest in southeastern Wisconsin. The chief feature of the reserve is the Kettle Moraine, a highly glaciated area. The area contains very hilly terrain and glacial landforms, such as kettles, kames and eskers. The 56,000-acre (23,000 ha) forest is divided into two large and three small units, which are spread across a hundred miles.
Fluvioglacial landforms or glaciofluvial landforms are those that result from the associated erosion and deposition of sediments caused by glacial meltwater. Glaciers contain suspended sediment loads, much of which is initially picked up from the underlying landmass. Landforms are shaped by glacial erosion through processes such as glacial quarrying, abrasion, and meltwater. Glacial meltwater contributes to the erosion of bedrock through both mechanical and chemical processes. Fluvio-glacial processes can occur on the surface and within the glacier. The deposits that happen within the glacier are revealed after the entire glacier melts or partially retreats. Fluvio-glacial landforms and erosional surfaces include: outwash plains, kames, kame terraces, kettle holes, eskers, varves, and proglacial lakes.
The Rokua region, also known as the Rokuanvaara region is a region known for its moraine and dunes. The region covers parts of the municipalities of Muhos, Utajärvi and Vaala in the province of Oulu in Finland.
The Sierra Nevada del Cocuy Chita or Guican National Natural Park (or Sierra Nevada de Chita or Sierra Nevada de Güicán, Spanish: Parque Natural Sierra Nevada del Cocuy Chita o Guican is a national park and a series of highlands and glaciated peaks located within the Cordillera Oriental mountain range in the Andes Mountains of Colombia, at its easternmost point. It also corresponds to the highest range of the Eastern Cordillera and holds the biggest glacial mass in South America, north of the Equator. Since 1977, this region is protected within a National Natural Park because of its fragile páramos, extraordinary bio-diversity and endemism, and its function as a corridor for migratory species under conditions of climate change. Among the Sierra’s natural attractions are the remaining 18 ice-covered peaks, glacial lakes and waterfalls.
The Madonie are one of the principal mountain ranges on the island of Sicily, located in the Northern part of the island.
Fforest Fawr Geopark is a Geopark in the Brecon Beacons National Park, south Wales. It is the first designated Geopark in Wales having gained membership of both the European Geoparks Network and the UNESCO-assisted Global Network of National Geoparks in October 2005. The Geopark aims to promote and support sustainable tourism and other opportunities to improve the economy of the area whilst safeguarding the natural environment. Its aims largely coincide with the statutory duties and purpose of the National Park within which it sits.
The European Geoparks Network (EGN) functions as the regional organization of the Global Geoparks Network (GGN) and the UNESCO International Geosciences and Geoparks Programme (UNESCO-IGGP). Its main objective is to ensure cooperation between geoparks for the protection of geological heritage and the promotion of sustainable development of their territories in Europe. In 2020 January, the EGN had 75 institutional members from 26 European countries and there are several aspiring geopark projects, applying for a UNESCO label and therefore the permanent EGN membership.
Heshigten or Hexigten Global Geopark is a UNESCO Global Geopark in Hexigten Banner, Chifeng city, Inner Mongolia, China. Its 1,750 km2 area is contained in eight separate areas of scenic beauty and geologic significance, including volcanic, glacial, and desert features.
The Beaver Hills, also known as the Beaver Hills Moraine and the Cooking Lake Moraine, are a rolling upland region in Central Alberta, just to the east of Edmonton, the provincial capital. It consists of 1,572 square kilometres (607 sq mi) of "knob and kettle" terrain, containing many glacial moraines and depressions filled with small lakes. The landform lies partly within five different counties, Strathcona, Leduc, Beaver, Lamont and Camrose. The area is relatively undeveloped compared to the surrounding region, and is protected in part by Elk Island National Park, the Cooking Lake–Blackfoot Provincial Recreation Area, the Ministik Bird Sanctuary, Miquelon Lake Provincial Park and a number of smaller provincial natural areas. Since 2016 Beaver Hills has been a UNESCO-designated biosphere reserve.
Old and Young Drift are geographic names given to the morainic landscapes that were formed in Central Europe; the Old Drift during the older ice ages and the Young Drift during the latest glaciations – the Weichselian in North Germany and the Würm in the Alps. Their landforms are quite different. Areas of Old Drift have been heavily flattened and transformed as a result of geomorphic processes such as denudation and erosion, whilst areas of Young Drift have largely retained their original shape. Whilst the majority of Old Drift moraines were formed during the Saale glaciation about 130,000 to 140,000 years ago, the Young Drift moraines in Central Europe are only about 15,000 to 20,000 years old. The terms Old and Young Drift are used for all elements of the glacial series even though the meltwater deposits and landforms are not strictly moraines.
This article describes the geology of the Brecon Beacons National Park in mid/south Wales. The area gained national park status in 1957 with the designated area of 1,344 km2 (519 sq mi) including mountain massifs to both the east and west of the Brecon Beacons proper. The geology of the national park consists of a thick succession of sedimentary rocks laid down from the late Ordovician through the Silurian and Devonian to the late Carboniferous period. The rock sequence most closely associated with the park is the Old Red Sandstone from which most of its mountains are formed. The older parts of the succession, in the northwest, were folded and faulted during the Caledonian orogeny. Further faulting and folding, particularly in the south of the park is associated with the Variscan orogeny.
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