Misplaced Pages

#114885

14-457: It was first formed as a peninsula during the 1950s and the 1960s, when a canal was built to facilitate navigation in the estuary of Bilbao . The project was stopped in 1968 with 400 meters left to finish, forming the former peninsula. The area reached its heyday during this decade, with many industries moving there. However, during the industrial crisis of the 1980s that struck the city, many industries were forced to shut down or relocate, and only

28-469: A basin . This may create peninsulas, and occurred for example in the Keweenaw Peninsula . In the case of formation from meltwater, melting glaciers deposit sediment and form moraines , which act as dams for the meltwater. This may create bodies of water that surround the land, forming peninsulas. If deposition formed the peninsula, the peninsula was composed of sedimentary rock , which

42-405: A glacier and deposited directly by or from the ice, or by glacial meltwater . Drift is often subdivided into (unsorted and) unstratified drift (glacial till ) that forms moraines and stratified drift (glaciolacustrine and fluvioglacial sediments) that accumulates as stratified and sorted sediments in the form of outwash plains , eskers , kames , varves , and so forth. The term drift clay

56-652: A handful of them survived to this day. A plan was approved in 2012 to renew the neighborhood with residential and business uses, a Master Plan designed by British Iraqi architect Zaha Hadid . As part of the Plan, the canal was finished and officially opened on 8 October 2018, making the former peninsula become an island. Two bridges link the resulting island to Deusto: Frank Gehry Bridge , inaugurated in 2015, and San Ignacio Bridge, finished in 2020. 43°16′16″N 2°57′47″W  /  43.2712°N 2.9630°W  / 43.2712; -2.9630 This article about

70-640: A location in the Basque Country, Spain, is a stub . You can help Misplaced Pages by expanding it . Peninsula A peninsula is a landform that extends from a mainland and is surrounded by water on most sides. Peninsulas exist on each continent. The largest peninsula in the world is the Arabian Peninsula . The word peninsula derives from Latin paeninsula , from paene  'almost' and insula  'island'. The word entered English in

84-597: Is a synonym for boulder clay . Both are archaic terms for glacial tills with a fine-grained matrix. In the United Kingdom, drift is also applied as a general term for all surficial, unconsolidated, rock debris and sediment that is moved from one place to accumulate in another and mapped separately or otherwise differentiated from underlying bedrock . In this usage, drift includes a wide variety of deposits, e.g. loess , glacial till, river deposits, colluvium , and so forth, of Quaternary age. However, this term

98-515: Is most commonly used to specifically describe glacial deposits. In 1839, geologist Roderick Murchison introduced the term drift to describe unconsolidated surficial sediments previously called diluvium . The term drift refers to the drift hypothesis proposed by Charles Lyell , as influenced by contemporary polar research, that these sediments had been transported by sea ice and icebergs drifting in marine currents. The drift hypothesis further proposed that these sediments had been released as

112-572: The 16th century. A peninsula is generally defined as a piece of land surrounded on most sides by water. A peninsula may be bordered by more than one body of water, and the body of water does not have to be an ocean or a sea. A piece of land on a very tight river bend or one between two rivers is sometimes said to form a peninsula, for example in the New Barbadoes Neck in New Jersey , United States. A peninsula may be connected to

126-499: The case of Florida , continental drift, marine sediment, and marine transgressions were all contributing factors to its shape. In the case of formation from glaciers (e.g., the Antarctic Peninsula or Cape Cod ), peninsulas can be created due to glacial erosion , meltwater or deposition . If erosion formed the peninsula, softer and harder rocks were present, and since the glacier only erodes softer rock, it formed

140-531: The mainland via an isthmus , for example, in the Isthmus of Corinth which connects to the Peloponnese peninsula. Peninsulas can be formed from continental drift , glacial erosion , glacial meltwater , glacial deposition , marine sediment , marine transgressions , volcanoes, divergent boundaries or river sedimentation. More than one factor may play into the formation of a peninsula. For example, in

154-468: The sediment is deposited, forming a delta peninsula. Marine transgressions (changes in sea level) may form peninsulas, but also may affect existing peninsulas. For example, the water level may change, which causes a peninsula to become an island during high water levels. Similarly, wet weather causing higher water levels make peninsulas appear smaller, while dry weather make them appear larger. Sea level rise from global warming will permanently reduce

SECTION 10

#1732772164115

168-403: The size of some peninsulas over time. Peninsulas are noted for their use as shelter for humans and Neanderthals . The landform is advantageous because it gives hunting access to both land and sea animals. They can also serve as markers of a nation's borders. Drift (geology) In geology, drift is a name for all sediment ( clay , silt , sand , gravel , boulders ) transported by

182-497: The volcano erupts near shallow water. Marine sediment may form peninsulas by the creation of limestone . A rift peninsula may form as a result of a divergent boundary in plate tectonics (e.g. the Arabian Peninsula ), while a convergent boundary may also form peninsulas (e.g. Gibraltar or the Indian subcontinent ). Peninsulas can also form due to sedimentation in rivers. When a river carrying sediment flows into an ocean,

196-504: Was created from a large deposit of glacial drift . The hill of drift becomes a peninsula if the hill formed near water but was still connected to the mainland, for example during the formation of Cape Cod about 23,000 years ago. In the case of formation from volcanoes, when a volcano erupts magma near water, it may form a peninsula (e.g., the Alaskan Peninsula ). Peninsulas formed from volcanoes are especially common when

#114885