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Georges River, in the southern suburbs of Sydney (Australia) is a ria, or drowned river valley. The deeply indented shape of the ria reflects the dendritic pattern of drainage that existed before the rise in sea level that flooded the valley.
Georges River, in the southern suburbs of Sydney (Australia) is a ria, or drowned river valley. The deeply indented shape of the ria reflects the dendritic pattern of drainage that existed before the rise in sea level that flooded the valley.

A ria is a submergent coastal landform, often known as a drowned valley or drowned river valley. Rias are almost always estuaries. Rias form when sea levels rise or plate tectonics cause coastal levels to fall. When this happens valleys which were previously at sea level become submerged. The result is often a very large estuary at the mouth of a relatively insignificant river (or else sediments would quickly fill the ria). The Kingsbridge Estuary is an extreme example of a ria forming an estuary disproportionate to the size of its river; no significant river flows into it at all, only a number of small streams. Image File history File links Codrington, Stephen. ... Image File history File links Codrington, Stephen. ... The Georges River is a waterway in the state of New South Wales in Australia. ... The Sydney Opera House on Sydney Harbour Sydney (pronounced ) is the most populous city in Australia with a metropolitan area population of over 4. ... A crystal dendrite is a crystal that develops with a typical multi-branching tree-like form. ... In earth science a submergent coastline is a coastline which has experienced a rise in sea level, either due to a global sea level change, or local subsidence. ... A coastal image featured on a United States postal stamp. ... A landform comprises a geomorphological unit. ... An estuary is a semi-enclosed coastal body of water which has a free connection with the open sea and within which sea water mixes with fresh water. ... Bridge across the Álfagjá rift valley in southwest Iceland, the boundary of the Eurasian and North American continental tectonic plates. ... Fljótsdalur in East Iceland, a rather flat valley Mt. ... Kingsbridge Estuary is a tidal stretch of water located in the South Hams. ...


The south coast of England is a submergent coastline, and contains many rias, including Portsmouth Harbour, Langstone Harbour, Chichester Harbour, Pagham Harbour, Southampton Water, Poole Harbour, the estuaries of the Exe, Teign and Dart, the Kingsbridge Estuary, and Plymouth Sound in Devon, and the estuaries of the River Fowey and River Fal in Cornwall. Milford Haven in Pembrokeshire, Wales is also a ria. Motto: (French for God and my right) Anthem: God Save the King/Queen Capital London Largest city London Official language(s) English (de facto) Unification    - by Athelstan AD 927  Area    - Total 130,395 km² (1st in UK)   50,346 sq mi  Population    - 2005 est. ... In earth science a submergent coastline is a coastline which has experienced a rise in sea level, either due to a global sea level change, or local subsidence. ... Portsmouth Harbour is a large natural harbour in Hampshire, England. ... Langstone Harbour is an inlet of the English Channel east of the city of Portsmouth and west of Hayling Island. ... Chichester Harbour is a large natural harbour to the south west of the city of Chichester on the English Channel; geographically it is a ria. ... Pagham Harbour is a natural harbour on Englands south coast. ... Fawley oil refinery from Netley Hospital. ... Poole Harbour is a harbour in Dorset, south England. ... The River Exe rises on Exmoor in Devon, near the north (Bristol Channel) coast of the county, but flows more or less directly due south and reaches the sea at a substantial ria on the south (English Channel) coast. ... The River Teign is a river in the county of Devon, England. ... The River Dart The River Dart is a river in Devon, UK. The river rises on Dartmoor, as two separate branches (the East Dart and West Dart), which join at Dartmeet. ... Plymouth Sound, or just The Sound, is a bay at Plymouth in England. ... Devon is a large county in South West England, bordered by Cornwall to the west, Dorset and Somerset to the east. ... The River Fowey is a river in Cornwall, UK. Its rises west of Liskeard, passes Lanhydrock House, Restormel Castle and Lostwithiel, then broadens at Milltown before joining the English Channel at Fowey. ... The River Fal flows through Cornwall, the United Kingdom, rising near Truro and reaching the English Channel at Falmouth. ... Cornwall (Cornish: Kernow) is a county in South West England on the peninsula that lies to the west of the River Tamar. ... Milford Haven is a natural harbour in Pembrokeshire, south Wales. ... Pembrokeshire (Welsh: Sir Benfro) is a county in the southwest of Wales in the United Kingdom. ... Motto: (Welsh for Wales forever) Anthem: Hen Wlad Fy Nhadau Capital Cardiff Largest city Cardiff Official language(s) Welsh, English Government Constitutional monarchy  - Queen Queen Elizabeth II  - Prime Minister of the UK Tony Blair MP  - First Minister Rhodri Morgan AM Unification    - by Gruffudd ap Llywelyn 1056  Area    - Total 20,779...


The east coast of Australia features several rias around Sydney, including Georges River, Port Hacking and Sydney Harbour itself. The Sydney Opera House on Sydney Harbour Sydney (pronounced ) is the most populous city in Australia with a metropolitan area population of over 4. ... The Georges River is a waterway in the state of New South Wales in Australia. ... Port Hacking is a suburb of Sydney, in the state of New South Wales, Australia. ... Sydney Opera House and Harbour Bridge located on Port Jackson Port Jackson is the natural harbour of Sydney, Australia, also known as Sydney Harbour and is the largest natural harbour in the world. ...


Chesapeake Bay and Delaware Bay, on the east coast of the United States, and San Francisco Bay, on the Pacific coast, are rias. The phenomenon is also common in South America. The Chesapeake Bay - Landsat photo The Chesapeake Bay where the Susquehanna River empties into it. ... Delaware Bay Delaware Bay is a large esturarial inlet of the Atlantic Ocean at the mouth of the Delaware River along the coast of the United States. ... San Francisco Bay, San Pablo Bay, and the Golden Gate San Francisco Bay is a shallow, productive estuary through which water draining approximately forty percent of California, flowing in the Sacramento and San Joaquin rivers from the Sierra Nevada mountains, enters the Pacific Ocean. ... South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ...


The rias in northern Brittany are called Abers; Aber Wrac'h, Aber Benoît, Aber Ildut. Brittany has a spectacular coastline Flag of Brittany (Gwenn-ha-du) Historical province of Brittany région of Bretagne, see Bretagne. ... Aber can refer to: Look up aber in Wiktionary, the free dictionary. ...


Rias are sometimes confused with fjords. Although both are formed in drowned valleys, fjords are created not by rivers but by glaciers. For instance, a ria north of Rovinj on the western coast of Istria, Croatia, the Lim Bay (Limski kanal in Croatian) is often called "Lim fjord", although it was not actually formed by glacial erosion but by the river Pazinčica. Fjord in Sunnmøre, Norway A fjord (or fiord) is a narrow inlet of the sea between cliffs or steep slopes, which results from marine inundation of a glaciated valley. ... Rovinj, seen from Campanile of Sv. ... Coat of arms Istria (Istra, pronounced in Croatian and Slovenian; Istria, pronounced in Italian, Istrien, pronounced in German) is the biggest peninsula in the Adriatic Sea. ... Lim canal The Lim bay and valley is a peculiar geographic feature found near Rovinj and Vrsar on the western coast of Istria, Croatia, south of Poreč. The name comes from the Latin limes for limit, referring to the landforms position at the border of two Roman provinces (Dalmatia...


The rias of Portugal and Galicia

The word "ria" is of Portuguese or Galician origin, often thought to be named after Ria Cuss, geograper, and inventor of silent velcro. Rias can be found also in Asturias in Spain and in Portugal (Aveiro) but the most important are on the northern and western coast of Galicia. Galician (Galician: galego, pron. ... Anthem: Asturias, patria querida Capital Oviedo Official language(s) Spanish; Asturian have special status Area  â€“ Total  â€“ % of Spain Ranked 10th  10,604 km²  2. ... Location    - Country Portugal    - Region Centro  - Subregion Baixo Vouga  - District or A.R. Aveiro Mayor Élio Maia  - Party PSD-CDS Area 199. ... Galicia (Spain) - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...


In northern Galicia, fronting on the Cantabrian Sea, the Rias Altas comprise the Ria de Ribadeo, the Ria de Foz, the Ria de Viveiro, the Ria do Barqueiro, and the Ria de Ortigueira. On the west coast — the so-called Rias Medias and Rías Baixas — we find the Ria de Ferrol, Ria de Ares y de Betanzos, Ria da Coruña, Ria de Corme e Laxe, Ria de Camariñas, Ria de Muros e Noia, Ria de Arousa, Ria de Pontevedra, and Ria de Vigo. The Ria de Vigo, one of the rias that gives Rías Baixas area its name The Rías Baixas are the Atlantic facing southern a part of Costa del Marisco in the Galicia region of Spain. ... Ferrol can refer to: EUROPE Ferrol, Spain City and Naval Station in North Western Spain, European Union Note: Place of birth of both Francisco Franco (1892) the Spanish dictator and Pablo Iglesias (1850) founder of PSOE and UGT. ASIA Ferrol, Romblon Small Town in the Philippines Note: The Philippines got... A Coruña , (in English Corunna, in Spanish La Coruña, and in Galician A Coruña) is a Galician city, in north-western Spain. ... Pontevedra is a city in northwestern Spain, the capital of the province of Pontevedra in Galicia. ... Nickname: The Olive City Situation of Vigo within Galicia Parroquias Alcabre, Beade, Bembrive, Cabral, Candeán, Castrelos, Comesaña, Coruxo, Lavadores, Matamá, Navia, Oia, Saiáns, Sampaio, Sárdoma, Valadares, Zamáns. ...


The rias have shaped the development of Galicia as the population tended to cluster on their banks. A Coruña, Pontevedra, and Vigo are major ports. Fishing, and the production of shellfish on platforms (bateas) in the rias, are well-developed. The Rias region is one of high rainfall and moderate temperatures — between 0°C and 30°C. The sceneries and the beaches along these calm, relatively warm waters, attract tourists to such resorts as Sanxenxo and A Toxa. Galicia (Spain) - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Torre de Hércules View from the Torre de Hércules A Coruña (Galician name, also known in English as Corunna; in Spanish as La Coruña) is a Galician city, in north-western Spain at 43° 22′ 0″ N 8° 22′ 60″ W. It is the capital of... Pontevedra is a city in northwestern Spain, the capital of the province of Pontevedra in Galicia. ... Nickname: The Olive City Situation of Vigo within Galicia Parroquias Alcabre, Beade, Bembrive, Cabral, Candeán, Castrelos, Comesaña, Coruxo, Lavadores, Matamá, Navia, Oia, Saiáns, Sampaio, Sárdoma, Valadares, Zamáns. ...


See also


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