Gulf of Lion
Encyclopedia
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean surrounded by the Mediterranean region and almost completely enclosed by land: on the north by Anatolia and Europe, on the south by North Africa, and on the east by the Levant...
coastline of Languedoc-Roussillon
Languedoc-Roussillon
Languedoc-Roussillon is one of the 27 regions of France. It comprises five departments, and borders the other French regions of Provence-Alpes-Côte d'Azur, Rhône-Alpes, Auvergne, Midi-Pyrénées on the one side, and Spain, Andorra and the Mediterranean sea on the other side.-Geography:The region is...
and Provence
Provence
Provence ; Provençal: Provença in classical norm or Prouvènço in Mistralian norm) is a region of south eastern France on the Mediterranean adjacent to Italy. It is part of the administrative région of Provence-Alpes-Côte d'Azur...
in France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
, reaching from the border with Catalonia
Catalonia
Catalonia is an autonomous community in northeastern Spain, with the official status of a "nationality" of Spain. Catalonia comprises four provinces: Barcelona, Girona, Lleida, and Tarragona. Its capital and largest city is Barcelona. Catalonia covers an area of 32,114 km² and has an...
in the west to Toulon
Toulon
Toulon is a town in southern France and a large military harbor on the Mediterranean coast, with a major French naval base. Located in the Provence-Alpes-Côte-d'Azur region, Toulon is the capital of the Var department in the former province of Provence....
.
The chief port on the gulf is Marseille
Marseille
Marseille , known in antiquity as Massalia , is the second largest city in France, after Paris, with a population of 852,395 within its administrative limits on a land area of . The urban area of Marseille extends beyond the city limits with a population of over 1,420,000 on an area of...
. Toulon is another important port. The fishing industry in the gulf is based on hake
Hake
The term hake refers to fish in either of:* family Phycidae of the northern oceans* family Merlucciidae of the southern oceans-Hake fish:...
(Merluccius merluccius), being bottom-trawled, long-lined and gill-netted and currently declining from over-fishing.
Rivers that empty into the gulf include the Tech
Tech River
The Tech is a river in southern France, very close to the French-Spanish border. It runs through a valley in the Pyrénées-Orientales, in the former Roussillon, and is 84 km long. Its source is the Parcigoule Valley and it feeds the Mediterranean Sea...
, Têt
Têt River
The Têt is the largest river in Roussillon, southeastern France. It is 116 km long. The Têt has its source at the foot of the Pic Carlit in the Pyrenees...
, Aude
Aude River
The Aude River is a river of southwestern France. Its source is in the Pyrenees mountains and it then runs to Carcassonne and turns, reaching the Mediterranean Sea near Narbonne...
, Orb
Orb River
The Orb is a 145 km long river in the Herault département of Southern France that flows into the Mediterranean Sea, in Valras-Plage. The river flows through the towns Bédarieux and Béziers, where it is crossed by the canal du Midi on the Orb Aqueduct. In ancient times, the Orb was crossed at...
, Hérault
Hérault River
The Hérault is a river of southern France. Its length is . Its source is in the Cévennes mountains. It reaches the Mediterranean Sea near Agde...
, Vidourle
Vidourle
The Vidourle is a river in southern France, flowing into the Mediterranean Sea in Le Grau-du-Roi. Its source is in the Cévennes mountains, northwest of Saint-Hippolyte-du-Fort, at Saint-Roman-de-Codières. It flows generally southeast...
, and the Rhône
Rhône River
The Rhone is one of the major rivers of Europe, rising in Switzerland and running from there through southeastern France. At Arles, near its mouth on the Mediterranean Sea, the river divides into two branches, known as the Great Rhone and the Little Rhone...
.
The continental shelf
Continental shelf
The continental shelf is the extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas and gulfs, and was similarly submerged during other interglacial periods. The continental margin,...
is exposed here as a wide coastal plain, and the offshore terrain slopes rapidly to the Mediterranean's abyssal plain
Abyssal plain
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 metres. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest...
. Much of the coastline is composed of lagoons and salt marsh
Salt marsh
A salt marsh is an environment in the upper coastal intertidal zone between land and salt water or brackish water, it is dominated by dense stands of halophytic plants such as herbs, grasses, or low shrubs. These plants are terrestrial in origin and are essential to the stability of the salt marsh...
.
This is the area of the famous cold, blustery winds called the Mistral
Mistral (wind)
The mistral is a strong, cold and usually dry regional wind in France, coming from the north or northwest, which accelerates when it passes through the valleys of the Rhone and the Durance Rivers to the coast of the Mediterranean around the Camargue region. It affects the northeast of the plain...
and the Tramontane
Tramontane
Tramontane is a classical name for a northern wind. The exact form of the name and precise direction varies from country to country. The word came to English from Italian tramontana, which developed from Latin trānsmontānus , "beyond the mountains/across the mountains", referring to the alps in...
.
Etymology
The current name of the Gulf appeared at least during the 13th century (in medieval Latin sinus Leonis, mare Leonis) and could come from comparison with a lionLion
The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...
: it would simply suggest that this part of the sea is as dangerous as a lion because it has very violent, surprising winds that threaten boats (sailors and fishermen know these dangers very well). This comparison with a lion is suggested by various converging sources: Deroy and Mulon's dictionary of French place names, Mistral's comprehensive Occitan dictionary, Diderot and D'Alembert's famous French encyclopedia and several texts in Latin since the 13th century.
These sources, especially Deroy and Mulon, Diderot and D'Alembert, reject the hypothesis according to which the name woud be related to the city of Lyon
Lyon
Lyon , is a city in east-central France in the Rhône-Alpes region, situated between Paris and Marseille. Lyon is located at from Paris, from Marseille, from Geneva, from Turin, and from Barcelona. The residents of the city are called Lyonnais....
, since it is too far from the gulf.
A former name in classical Latin during Roman antiquity was sinus Gallicus (that is, "Gaul
Gaul
Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...
ish gulf").
Geodynamics
The Gulf of Lion is not a simple passive continental margin; it results from OligoceneOligocene
The Oligocene is a geologic epoch of the Paleogene Period and extends from about 34 million to 23 million years before the present . As with other older geologic periods, the rock beds that define the period are well identified but the exact dates of the start and end of the period are slightly...
-Miocene
Miocene
The Miocene is a geological epoch of the Neogene Period and extends from about . The Miocene was named by Sir Charles Lyell. Its name comes from the Greek words and and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene follows the Oligocene...
anti-clockwise rotation of the Corsican-Sardinian Block against the European Craton
Craton
A craton is an old and stable part of the continental lithosphere. Having often survived cycles of merging and rifting of continents, cratons are generally found in the interiors of tectonic plates. They are characteristically composed of ancient crystalline basement rock, which may be covered by...
. This extension rejuvenated a very complex tectonic framework inherited from the Tethyan evolution and the Pyrenean orogeny. The Eocene mountain-building event
Orogeny
Orogeny refers to forces and events leading to a severe structural deformation of the Earth's crust due to the engagement of tectonic plates. Response to such engagement results in the formation of long tracts of highly deformed rock called orogens or orogenic belts...
that built the Pyrenees compressed and thickened the entire crust. Oil geologists predict that there will be considerable oil deposits at the seaward margins of the gulf.
Marine ecology
The Gulf of Lion is notable, according to C.Michael Hogan, for occurrences of biodiversity associated with the reef building organism Lophelia pertusaLophelia pertusa
Lophelia pertusa is a species of cold-water coral which grows in the deep waters throughout the North Atlantic ocean, as well as parts of the Caribbean Sea and Alboran Sea. L...
.