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Geography Of The British Virgin Islands
The British Virgin Islands (BVI) are one of three political divisions of the Virgin Islands archipelago located in the Lesser Antilles, between the Caribbean Sea and the North Atlantic Ocean. The BVI are the easternmost part of the island chain. The land area totals () (about 0.9 times the size of Washington, DC) and comprises 16 inhabited and more than 20 uninhabited islands. The islands of Tortola (), Anegada (), Virgin Gorda () and Jost van Dyke () are the largest. Maritime claims include territorial sea and a exclusive fishing zone. In terms of land use, it is 20% arable land, 6.67% permanent crops and 73.33% other as of a 2005 figure. It has strong ties to nearby U.S. Virgin Islands and Puerto Rico. Terrain The majority of the islands are steep and hilly due to their volcanic origin. The lowest point of the island chain is the Caribbean Sea while the highest point is Mount Sage at above sea level and there are of coastline. Other than Anegada, the islands are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leeward Islands
french: Îles-Sous-le-Vent , image_name = , image_caption = ''Political'' Leeward Islands. Clockwise: Antigua and Barbuda, Guadeloupe, Saint kitts and Nevis. , image_alt = , locator_map = , location = Caribbean Sea North Atlantic Ocean , coordinates = , area_km2 = , total_islands = 30+ , major_islands = Antigua and BarbudaGuadeloupeMontserrat Saint Kitts and Nevis Saint MartinVirgin Islands , highest_mount = La Grande Soufrière, Guadeloupe , elevation_m = 1,467 , country = Antigua and Barbuda , country_largest_city = St. John's , country1 = Guadeloupe , country1_largest_city = Les Abymes , country2 = Saint Kitts and Nevis , country2_largest_city = Basseterre , country3 = Sint Maarten , country3_largest_city = Philipsburg , density_km2 = , population = +700,000 , ethnic_groups = The Leeward Islands () are a group of islands situated where the northeastern Caribbean Sea meets the western Atlantic Ocean. Starting with the Virgin Islands east of Puerto Rico, they ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Sage
Mount Sage National Park is a protected area of the British Virgin Islands. It is named after the highest peak of the island of Tortola, Mount Sage. The Mount Sage volcanic peak rises to a height of , and is thus the highest point in all of the Virgin Islands. The park is located to the southwest of the island group's capital, Road Town. The park, which includes the mountain range, extends over an area of . The vegetation is of semi-rain forest type. There are many trails for trekking and hiking. History The national park was established in 1964, covering an area of 35 ha. It was the first national park in the British Virgin Islands to preserve and reserve the remaining forests and its adjoining watershed areas. The reserve area was acquired from private farmers by the Government with a grant provided by Laurance Rockefeller, and was given to the National Park Trust in 1964 for making it a forest reserve for conservation purposes. Geography Approach to the national park is from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Savanna Climate
Tropical savanna climate or tropical wet and dry climate is a tropical climate sub-type that corresponds to the Köppen climate classification categories ''Aw'' (for a dry winter) and ''As'' (for a dry summer). The driest month has less than of precipitation and also less than 100-\left (\frac \right)mm of precipitation. This latter fact is in a direct contrast to a tropical monsoon climate, whose driest month sees less than of precipitation but has ''more'' than 100-\left (\frac \right) of precipitation. In essence, a tropical savanna climate tends to either see less overall rainfall than a tropical monsoon climate or have more pronounced dry season(s). In tropical savanna climates, the dry season can become severe, and often drought conditions prevail during the course of the year. Tropical savanna climates often feature tree-studded grasslands due to its dryness, rather than thick jungle. It is this widespread occurrence of tall, coarse grass (called savanna) which has led ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurance Rockefeller
Laurance Spelman Rockefeller (May 26, 1910 – July 11, 2004) was an American businessman, financier, philanthropist, and conservationist. Rockefeller was the third son and fourth child of John D. Rockefeller Jr. and Abby Aldrich Rockefeller. As a trustee of the Rockefeller Brothers Fund, he provided venture capital for Intel, Apple Computer and many other successful start-ups. Rockefeller was known for his involvement in wilderness preservation, ecology and the protection of wildlife. His crusade was the establishing of a conservation ethic, and he was declared America's leading conservationist by Lady Bird Johnson. Early life and marriage Rockefeller was born in New York City, as the fourth child of John Davison Rockefeller Jr. and Abigail Greene "Abby" Aldrich. His siblings were Abby, John III, Nelson, Winthrop, and David. He graduated from Princeton University in 1932 and attended Harvard Law School for two years, until he decided he did not want to be a lawyer. On Aug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spanish Town, British Virgin Islands
Spanish Town on southern Virgin Gorda is the second largest town (after Road Town) on the British Virgin Islands. Also known as Valley, Spanish Town offers numerous shopping possibilities. The heart of the town is its Yacht Harbor marina, with many bareboat sailing activities every day. It has its own airport and a ferry service is in operation from here to Road Town on Tortola Tortola () is the largest and most populated island of the British Virgin Islands, a group of islands that form part of the archipelago of the Virgin Islands. It has a surface area of with a total population of 23,908, with 9,400 residents in ... and Trellis Bay on Beef Island. Overall, though, Spanish Town is small, with few bars and a relaxed atmosphere. The national park " The Baths" is located south of Spanish Town. History Spanish Town was originally settled by Cornish miners, and ruins of the chimney, boiler house, cistern, and mine shafts can be seen. This is now part of the Copper Mine Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Town
Road Town, located on Tortola, is the capital of the British Virgin Islands. It is situated on the horseshoe-shaped Road Harbour in the centre of the island's south coast. The population was about 15,000 in 2018. The name is derived from the nautical term " the roads", a place less sheltered than a harbour but which ships can easily get to. A development called Wickham's Cay, consisting of two areas that were reclaimed from the sea and a marina, have enabled Road Town to emerge as a haven for yacht chartering and a centre of tourism. This area is the newest part of the city and the hub for the new commercial and administrative buildings of the BVI. The oldest building in Road Town, HM Prison on Main Street, was built in 1774. Climate The British Virgin Islands enjoy a tropical climate, moderated by trade winds. Temperatures vary little throughout the year. In the capital, Road Town, typical daily maxima are around in the summer and in the winter. Typical daily minima are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Plate
The North American Plate is a tectonic plate covering most of North America, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores. With an area of , it is the Earth's second largest tectonic plate, behind the Pacific Plate (which borders the plate to the west). It extends eastward to the Mid-Atlantic Ridge and westward to the Chersky Range in eastern Siberia. The plate includes both continental and oceanic crust. The interior of the main continental landmass includes an extensive granitic core called a craton. Along most of the edges of this craton are fragments of crustal material called terranes, which are accreted to the craton by tectonic actions over a long span of time. It is thought that much of North America west of the Rocky Mountains is composed of such terranes. Boundaries The southern boundary with the Cocos Plate to the west and the Caribbean Plate to the east is a transform fault, represented by the Swan Islands Transfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean Plate
The Caribbean Plate is a mostly oceanic tectonic plate underlying Central America and the Caribbean Sea off the north coast of South America. Roughly 3.2 million square kilometers (1.2 million square miles) in area, the Caribbean Plate borders the North American Plate, the South American Plate, the Nazca Plate and the Cocos Plate. These borders are regions of intense seismic activity, including frequent earthquakes, occasional tsunamis, and volcanic eruptions. Boundary types The northern boundary with the North American Plate is a transform or strike-slip boundary which runs from the border area of Belize, Guatemala (Motagua Fault), and Honduras in Central America, eastward through the Cayman trough along the Swan Islands Transform Fault before joining the southern boundary of the Gonâve Microplate. East of the Mid-Cayman Rise this continues as the Walton fault zone and the Enriquillo–Plantain Garden fault zone into eastern Hispaniola. From there it continues in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonic
Tectonics (; ) are the processes that control the structure and properties of the Earth's crust and its evolution through time. These include the processes of mountain building, the growth and behavior of the strong, old cores of continents known as cratons, and the ways in which the relatively rigid plates that constitute the Earth's outer shell interact with each other. Tectonics also provide a framework for understanding the earthquake and volcanic belts that directly affect much of the global population. Tectonic studies are important as guides for economic geologists searching for fossil fuels and ore deposits of metallic and nonmetallic resources. An understanding of tectonic principles is essential to geomorphologists to explain erosion patterns and other Earth surface features. Main types of tectonic regime Extensional tectonics Extensional tectonics is associated with the stretching and thinning of the crust or the lithosphere. This type of tectonics is fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Bank
An ocean bank, sometimes referred to as a fishing bank or simply bank, is a part of the seabed that is shallow compared to its surrounding area, such as a shoal or the top of an underwater hill. Somewhat like continental slopes, ocean bank slopes can upwell as tidal and other flows intercept them, sometimes resulting in nutrient-rich currents. Because of this, some large banks, such as Dogger Bank and the Grand Banks of Newfoundland, are among the richest fishing grounds in the world. There are some banks that were reported in the 19th century by navigators, such as Wachusett Reef, whose existence is doubtful. Types Ocean banks may be of volcanic nature. Banks may be carbonate or terrigenous. In tropical areas some banks are submerged atolls. As they are not associated with any landmass, banks have no outside source of sediments. Carbonate banks are typically platforms, rising from the ocean depths, whereas terrigenous banks are elevated sedimentary deposits. Seamounts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbonate Rock
Carbonate rocks are a class of sedimentary rocks composed primarily of carbonate minerals. The two major types are limestone, which is composed of calcite or aragonite (different crystal forms of CaCO3), and dolomite rock (also known as dolostone), which is composed of mineral dolomite (CaMg(CO3)2). Calcite can be either dissolved by groundwater or precipitated by groundwater, depending on several factors including the water temperature, pH, and dissolved ion concentrations. Calcite exhibits an unusual characteristic called retrograde solubility in which it becomes less soluble in water as the temperature increases. When conditions are right for precipitation, calcite forms mineral coatings that cement the existing rock grains together or it can fill fractures. Karst topography and caves develop in carbonate rocks because of their solubility in dilute acidic groundwater. Cooling groundwater or mixing of different groundwaters will also create conditions suitable for cave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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