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Boiling Lake
The Boiling Lake is a flooded fumarole located in Morne Trois Pitons National Park, a World Heritage Site on the island of Dominica. The lake, located east of Dominica's capital Roseau, is filled with bubbling greyish-blue water that is usually enveloped in a cloud of vapour. The Boiling Lake is approximately across and is the second-largest hot lake in the world after Frying Pan Lake, located in Waimangu Valley near Rotorua, New Zealand. History The first recorded sighting of the lake was in 1870 by Edmund Watt and Henry Alfred Alford Nicholls, two Englishmen working in Dominica at that time. In 1875, Henry Prestoe, a government botanist, and Nicholls were commissioned to investigate this natural phenomenon. They measured the water temperature and found it to range from along the edges, but could not measure the temperature at the centre where the lake is actively boiling. They recorded the depth to be greater than . Periodically, there have been fluctuations in the level an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumarole
A fumarole (or fumerole) is a vent in the surface of the Earth or other rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity, but fumarole activity can also precede a volcanic eruption and has been used for eruption prediction. Most fumaroles die down within a few days or weeks of the end of an eruption, but a few are persistent, lasting for decades or longer. An area containing fumaroles is known as a fumarole field. The predominant vapor emitted by fumaroles is steam, formed by the circulation of groundwater through heated rock. This is typically accompanied by volcanic gases given off by magma cooling deep below the surface. These volcanic gases include sulfur compounds, such as various sulfur oxides and hydrogen sulfide, and sometimes hydrogen chloride, hydrogen fluoride, and other gases. A fumarole that emits significant sulfur compounds is some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morne Nicholls
Morne Nicholls is a mountain in Dominica named after Dominican Sir Henry Alfred Alford Nicholls. The mountain is located on a hiking trail leading to the Valley of Desolation and Boiling Lake The Boiling Lake is a flooded fumarole located in Morne Trois Pitons National Park, a World Heritage Site on the island of Dominica. The lake, located east of Dominica's capital Roseau, is filled with bubbling greyish-blue water that is usuall .... Morne Nicholls has an elevation of 3,168 feet. References Mountains of Dominica {{Dominica-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakes Of Dominica
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Hot Springs
There are hot springs on all continents and in many countries around the world. Countries that are renowned for their hot springs include Turkey, Honduras, Canada, Chile, Hungary, Iceland, Israel, Japan, Taiwan, New Zealand, India, Romania, Fiji and the United States, but there are interesting and unique hot springs in many other places as well. Africa Algeria * Hammam Essalihine ( Thermes de Flavius), 35.4403°N 7.0844°E * Hammam Chellala ( Thermes Chellala) * Hammam Guedjima (Thermes Guedjima) * N'Gaous (Source de Saïda) * Guelma (Source de Guelma) Democratic Republic of the Congo * Uvira, South Kivu province. (275 to 369 °C) * Kambo, North Kivu, in North Kivu province. (150 to 270 °C) Egypt * Oyoun Mossa (Moses Springs) * Hammam Pharaon ( Pharaoh Bath) * Hammam Musa ( Moses' Bath) Eswatini (Swaziland) There are thirteen developed and undeveloped hot spring pools in Eswatini (Swaziland). All are sulphur springs with temperatures ranging from 26 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hot Spring
A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circulation through faults to hot rock deep in the Earth's crust. In either case, the ultimate source of the heat is radioactive decay of naturally occurring radioactive elements in the Earth's mantle, the layer beneath the crust. Hot spring water often contains large amounts of dissolved minerals. The chemistry of hot springs ranges from acid sulfate springs with a pH as low as 0.8, to alkaline chloride springs saturated with silica, to bicarbonate springs saturated with carbon dioxide and carbonate minerals. Some springs also contain abundant dissolved iron. The minerals brought to the surface in hot springs often feed communities of extremophiles, microorganisms adapted to extreme conditions, and it is possible that life on Earth had its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angry Planet
''Angry Planet'' is a 39-part television series broadcast around the world featuring the adventures of storm chaser George Kourounis. ''Angry Planet'' is produced by Peter Rowe of Pinewood Films. The series plays on the following networks: * Pivot TV (US) *Outdoor Life Network (Canada) *The Weather Network (Canada) *Travel Channel (Europe, Romania) *Weather Channel (Australia) * TV8 (Sweden) *MTV3 (Finland) *Canal Evasion (Quebec) *TVB (Hong Kong) The first season of the series has also been released on DVD as a box set. Each episode focuses on a different force of nature as Kourounis gets up close to investigate and document the most fierce natural phenomena the Earth has to dish out. Seasons Season One *Tornadoes *Winds of Autumn *Wild Weather Season *Yukon Wildfires *African Hellhole *Desert Monsoon *Volcanic Wedding *Avalanches *Blizzards *Sailing around Cape Horn *Rope traverse of the Boiling Lake *Wild Water *Midwest Stormfest Season Two *Island Caving *Hurricanes *Wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Kourounis
George Kourounis (born 22 May 1970), is a Greek-Canadian adventurer and storm chaser who specializes in documenting extreme weather and worldwide natural disasters. He presents the television series ''Angry Planet''. Storm chasing Kourounis has been a storm chaser since 1997 and documents all forms of severe weather including tornadoes, hurricanes, blizzards, floods, hail, and lightning. In January 2005 Kourounis brought his camera to the remote Danakil Depression in the harsh Ethiopian desert and was lowered into the smoking crater of the active Erta Ale volcano. He spent a half hour filming on top of the freshly hardened surface of the lava lake wearing a protective heat suit. He documented four major U.S. land falling hurricanes in 2005, including the devastating Hurricane Katrina in Gulfport, Mississippi. Some of his other accomplishments include documenting mountain gorillas in Rwanda, climbing Mount Nyiragongo volcano in the Democratic Republic of Congo, and documenting n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Gas
Volcanic gases are gases given off by active (or, at times, by dormant) volcanoes. These include gases trapped in cavities (vesicles) in volcanic rocks, dissolved or dissociated gases in magma and lava, or gases emanating from lava, from volcanic craters or vents. Volcanic gases can also be emitted through groundwater heated by volcanic action. The sources of volcanic gases on Earth include: * primordial and recycled constituents from the Earth's mantle, * assimilated constituents from the Earth's crust, * groundwater and the Earth's atmosphere. Substances that may become gaseous or give off gases when heated are termed volatile substances. Composition The principal components of volcanic gases are water vapor (H2O), carbon dioxide (CO2), sulfur either as sulfur dioxide (SO2) (high-temperature volcanic gases) or hydrogen sulfide (H2S) (low-temperature volcanic gases), nitrogen, argon, helium, neon, methane, carbon monoxide and hydrogen. Other compounds detected in volcanic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfur
Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature. Sulfur is the tenth most abundant element by mass in the universe and the fifth most on Earth. Though sometimes found in pure, native form, sulfur on Earth usually occurs as sulfide and sulfate minerals. Being abundant in native form, sulfur was known in ancient times, being mentioned for its uses in ancient India, ancient Greece, China, and ancient Egypt. Historically and in literature sulfur is also called brimstone, which means "burning stone". Today, almost all elemental sulfur is produced as a byproduct of removing sulfur-containing contaminants from natural gas and petroleum.. Downloahere The greatest commercial use of the element is the production o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laudat
Laudat is a small village in the interior of Dominica, located between 3 mountains: Morne Watt, Morne Micotrine (Morne Mackak), and Morne Trois Pitons. With a population of just above 300 people, Laudat is referred to as a "gateway" because it is the sole entry point to many of the islands sights, including the Boiling Lake, Fresh Water Lake, and Titou Gorge. Perched about 1200 feet above sea level Laudat has a cool climate and views of the Caribbean Sea. It is located approximately 20 minutes from the capital, Roseau Roseau (Dominican Creole: ''Wozo'') is the capital and largest city of Dominica, with a population of 14,725 as of 2011. It is a small and compact urban settlement, in the Saint George parish and surrounded by the Caribbean Sea, the Roseau Ri ... and is at the end of the road (there is no alternative but to turn around to exit). The road to Laudat used to be a hair-raising ride up the mountains, around blind hairpin turns with sharp drop-offs into the jungle c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morne Trois Pitons National Park
Morne Trois Pitons National Park is a national park in Dominica established in July 1975, the first to be legally established in the country. It became a World Heritage Site in 1997. The park is named after its highest mountain, Morne Trois Pitons, meaning mountain of three peaks. The park is an area of significant volcanic activity. Features within the park include the Valley of Desolation, a region of boiling mud ponds and small geysers; the Boiling Lake; Titou Gorge; and Emerald Pool. The mountain is the second-highest peak in Dominica, being exceeded only by Morne Diablotins (). Background The park was established in 1975 and was designated a UNESCO World Heritage Site in 1997. Its area is about , and it is dominated by the Morne Trois Pitons volcanoes (), from which it gets its name. The three major types of geological formations found in the park are volcanic cones, glacis slopes, and soufrières (sulphur deposits). The landscape consists of steep-sided volcanic hills sepa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phreatic Eruption
A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption, occurs when magma heats ground water or surface water. The extreme temperature of the magma (anywhere from ) causes near-instantaneous evaporation of water to steam, resulting in an explosion of steam, water, ash, rock, and volcanic bombs. At Mount St. Helens in Washington state, hundreds of steam explosions preceded the 1980 Plinian eruption of the volcano. A less intense geothermal event may result in a mud volcano. Phreatic eruptions typically include steam and rock fragments; the inclusion of liquid lava is unusual. The temperature of the fragments can range from cold to incandescent. If molten magma is included, volcanologists classify the event as a phreatomagmatic eruption. These eruptions occasionally create broad, low-relief craters called '' maars''. Phreatic explosions can be accompanied by carbon dioxide or hydrogen sulfide gas-emissions. Carbon dioxide c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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