A karst spring or karstic spring is a spring (exsurgence, outflow of groundwater ) that is part of a karst hydrological system.
35-496: Sanlando Springs is a second magnitude freshwater spring and an unincorporated community in Seminole County, Florida , United States, just west of Longwood, Florida . Originally named Hoosier Springs by early settler Ingram Fletcher, the springs were later renamed for its location between the cities of Sanford and Orlando . From the 1930s through 1970, it was a privately owned and operated recreation area and park that
70-583: A Topf ("pot") which is reflected in names such as Aachtopf (the source of the Radolfzeller Aach ) or Blautopf (the source of the Blau river in Blaubeuren ). Karst springs often have a very high yield or discharge rate , because they are often fed by underground drainage from a large catchment basin . Because the springs are usually the terminus of a cave drainage system at the place where
105-504: A heat source for thousands of years. In the 20th century, they became a renewable resource of geothermal energy for heating homes and buildings. The city of Beppu, Japan contains 2,217 hot spring well heads that provide the city with hot water. Hot springs have also been used as a source of sustainable energy for greenhouse cultivation and the growing of crops and flowers. Springs have been represented in culture through art, mythology, and folklore throughout history. The Fountain of Youth
140-474: A kind of mythic quality in that some people falsely believe that springs are always healthy sources of drinking water. They may or may not be. One must take a comprehensive water quality test to know how to use a spring appropriately, whether for a mineral bath or drinking water. Springs that are managed as spas will already have such a test. Springs are often used as sources for bottled water. When purchasing bottled water labeled as spring water one can often find
175-482: A location in Seminole County , Florida is a stub . You can help Misplaced Pages by expanding it . Spring (hydrosphere) A spring is a natural exit point at which groundwater emerges from the aquifer and flows onto the top of the Earth's crust ( pedosphere ) to become surface water . It is a component of the hydrosphere , as well as a part of the water cycle . Springs have long been important for humans as
210-495: A lower elevation and exit in the form of a spring, using the ground like a drainage pipe. Still other springs are the result of pressure from an underground source in the earth, in the form of volcanic or magma activity. The result can be water at elevated temperature and pressure, i.e. hot springs and geysers . The action of the groundwater continually dissolves permeable bedrock such as limestone and dolomite , creating vast cave systems. Spring discharge, or resurgence ,
245-675: A rate of at least 2800 liters or 100 cubic feet (2.8 m ) of water per second. Some locations contain many first-magnitude springs, such as Florida where there are at least 27 known to be that size; the Missouri and Arkansas Ozarks , which contain 10 known of first-magnitude; and 11 more in the Thousand Springs area along the Snake River in Idaho . The scale for spring flow is as follows: Minerals become dissolved in
280-580: A river cave reaches the Earth's surface, it is often possible to enter the caves from karst springs for exploration. Large karst springs are located in many parts of the world; the largest ones are believed to be in Papua New Guinea , with others located in Mediterranean countries such as Bosnia and Herzegovina , Croatia , Turkey , Slovenia , and Italy . An estavelle or inversac
315-552: A series of wood-block prints , Two Artists Tour the Seven Hot Springs (Sōhitsu shichitō meguri) in 1854. The Chinese city Jinan is known as "a City of Springs" (Chinese: 泉城), because of its 72 spring attractions and numerous micro spring holes spread over the city centre. Karst spring Because of their often conical or inverted bowl shape, karst springs are also known in German-speaking lands as
350-471: A source of fresh water , especially in arid regions which have relatively little annual rainfall . Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic pressure . A spring produced by the emergence of geothermally heated groundwater is known as a hot spring . The yield of spring water varies widely from a volumetric flow rate of nearly zero to more than 14,000 litres per second (490 cu ft/s) for
385-542: Is a ground orifice which, depending on weather conditions and season, can serve either as a sink or as a source of fresh water. It is a type of sinkhole . A Vauclusian spring is a spring that originates from a shaft or a cave system, with the water surging upwards under relatively high pressure. It is named after the Fontaine de Vaucluse in southern France. Submarine karst springs, also known as vruljas , occur worldwide, and are most numerous in shallow waters of
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#1732782802482420-518: Is a mythical spring which was said to restore youth to anyone who drank from it. It has been claimed that the fountain is located in St. Augustine, Florida , and was discovered by Juan Ponce de León in 1513. However, it has not demonstrated the power to restore youth, and most historians dispute the veracity of Ponce de León's discovery. Pythia, also known as the Oracle at Delphi was the high priestess of
455-407: Is determined by the spring's recharge basin. Factors that affect the recharge include the size of the area in which groundwater is captured, the amount of precipitation, the size of capture points, and the size of the spring outlet. Water may leak into the underground system from many sources including permeable earth, sinkholes, and losing streams . In some cases entire creeks seemingly disappear as
490-576: Is greater than human body temperature, usually in the range of 45–50 °C (113–122 °F), but they can be hotter. Those springs with water cooler than body temperature but warmer than air temperature are sometimes referred to as warm springs. Hot springs or geothermal springs have been used for balneotherapy , bathing, and relaxation for thousands of years. Because of the folklore surrounding hot springs and their claimed medical value, some have become tourist destinations and locations of physical rehabilitation centers. Hot springs have been used as
525-411: Is minimal filtering of the water and little separation of different sediments. Groundwater emerges at the spring within a few days from precipitation. Storms, snowmelt, and general seasonal changes in rainfall have a very noticeable and rapid effect on karst springs. Many karst springs dry up during the driest part of the year, and are thus known as intermittent springs . Still others are dry most of
560-494: Is no longer open to the general public. The main swimming area formerly boasted a diving platform over the spring, approximately 6 ft (1.8 m) above the waters' surface until removed by the community board. There is also a floating man-made dock, approximately 40 ft (12.2 m) from the shoreline, to which guests may swim. The waters of the main spring eventually empty into the Wekiva River and from there into
595-411: Is said to result in the absorption of the minerals from the water. Some springs contain arsenic levels that exceed the 10 ppb World Health Organization (WHO) standard for drinking water . Where such springs feed rivers they can also raise the arsenic levels in the rivers above WHO limits. Water from springs is usually clear. However, some springs may be colored by the minerals that are dissolved in
630-519: Is the Hungerbrunnen in the parish of Heuchlingen near Gerstetten . The properties of karst springs make them unsuitable for the supply of drinking water . Their uneven flow rate does not support a steady rate of consumption, especially in summer when there is lower discharge but higher demand. In addition, poor filtering and high hardness mean that the water quality is poor. The French Realist painter Gustave Courbet (1819–1877) painted
665-492: The Mediterranean Sea . They can be considered to be karst springs which have become submerged by rising sea levels . For intermittent or rhythmic springs see below. They are part of another type of classification, which differentiates between perennial (with continuous flow), rhythmic , and temporary springs. A main feature of karst springs is that water is rapidly transported by caverns, so that there
700-619: The St. Johns River . Sanlando Springs, along with nearby Rock Springs, Wekiwa Springs and Palm Springs, form the headwaters of the Wekiva River. During times of heavy rain, such as the 2005 Atlantic Hurricane Season , the springs have been known to flood dramatically and certain areas of the spring during these times may be hazardous. Near the main spring are several sulfur springs , which are generally unfit for swimming due to foul odor and possible presence of potentially dangerous wildlife, such as alligators . This article about
735-586: The Temple of Apollo . She delivered prophesies in a frenzied state of divine possession that were "induced by vapours rising from a chasm in the rock". It is believed that the vapors were emitted from the Kerna spring at Delphi. The Greek myth of Narcissus describes a young man who fell in love with his reflection in the still pool of a spring. Narcissus gazed into "an unmuddied spring, silvery from its glittering waters, which neither shepherds nor she-goats grazing on
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#1732782802482770-405: The biggest springs. Springs are formed when groundwater flows onto the surface. This typically happens when the water table reaches above the surface level, or if the terrain depresses sharply. Springs may also be formed as a result of karst topography , aquifers or volcanic activity . Springs have also been observed on the ocean floor , spewing warmer, low- salinity water directly into
805-476: The form of a particular name, an associated legend , the attribution of healing qualities to the water through the numinous presence of its guardian spirit or of a Christian saint , or a ceremony or ritual centered on the well site. Christian legends often recount how the action of a saint caused a spring's water to flow - a familiar theme, especially in the hagiography of Celtic saints. The geothermally heated groundwater that flows from thermal springs
840-728: The mountain nor any other cattle had touched, which neither bird nor beast nor branch fallen from a tree had disturbed." (Ovid) The early 20th century American photographer, James Reuel Smith created a comprehensive series of photographs documenting the historical springs of New York City before they were capped by the city after the advent of the municipal water system. Smith later photographed springs in Europe leading to his book, Springs and Wells in Greek and Roman Literature, Their Legends and Locations (1922). The 19th century Japanese artists Utagawa Hiroshige and Utagawa Toyokuni III created
875-427: The ocean. Springs formed as a result of karst topography create karst springs , in which ground water travels through a network of cracks and fissures—openings ranging from intergranular spaces to large caves , later emerging in a spring. The forcing of the spring to the surface can be the result of a confined aquifer in which the recharge area of the spring water table rests at a higher elevation than that of
910-399: The outlet. Spring water forced to the surface by elevated sources are artesian wells . This is possible even if the outlet is in the form of a 300-foot-deep (91 m) cave. In this case the cave is used like a hose by the higher elevated recharge area of groundwater to exit through the lower elevation opening. Non-artesian springs may simply flow from a higher elevation through the earth to
945-482: The volume of flow. Springs fall into three general classifications: perennial (springs that flow constantly during the year); intermittent (temporary springs that are active after rainfall, or during certain seasonal changes); and periodic (as in geysers that vent and erupt at regular or irregular intervals). Springs are often classified by the volume of the water they discharge. The largest springs are called "first-magnitude", defined as springs that discharge water at
980-933: The water as it moves through the underground rocks . This mineral content is measured as total dissolved solids (TDS). This may give the water flavor and even carbon dioxide bubbles, depending on the nature of the geology through which it passes. This is why spring water is often bottled and sold as mineral water , although the term is often the subject of deceptive advertising . Mineral water contains no less than 250 parts per million (ppm) of tds. Springs that contain significant amounts of minerals are sometimes called ' mineral springs '. (Springs without such mineral content, meanwhile, are sometimes distinguished as 'sweet springs'.) Springs that contain large amounts of dissolved sodium salts , mostly sodium carbonate , are called 'soda springs'. Many resorts have developed around mineral springs and are known as spa towns . Mineral springs are alleged to have healing properties. Soaking in them
1015-457: The water sinks into the ground via the stream bed. Grand Gulf State Park in Missouri is an example of an entire creek vanishing into the groundwater system. The water emerges 9 miles (14 km) away, forming some of the discharge of Mammoth Spring in Arkansas . Human activity may also affect a spring's discharge—withdrawal of groundwater reduces the water pressure in an aquifer, decreasing
1050-602: The water test for that spring on the website of the company selling it. Springs have been used as sources of water for gravity-fed irrigation of crops. Indigenous people of the American Southwest built spring-fed acequias that directed water to fields through canals. The Spanish missionaries later used this method. A sacred spring, or holy well, is a small body of water emerging from underground and revered in some religious context: Christian and/or pagan and/or other. The lore and mythology of ancient Greece
1085-494: The water. For instance, water heavy with iron or tannins will have an orange color. In parts of the United States a stream carrying the outflow of a spring to a nearby primary stream may be called a spring branch , spring creek , or run. Groundwater tends to maintain a relatively long-term average temperature of its aquifer; so flow from a spring may be cooler than other sources on a summer day, but remain unfrozen in
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1120-543: The winter. The cool water of a spring and its branch may harbor species such as certain trout that are otherwise ill-suited to a warmer local climate . Springs have been used for a variety of human needs - including drinking water, domestic water supply, irrigation, mills , navigation, and electricity generation . Modern uses include recreational activities such as fishing, swimming, and floating; therapy ; water for livestock; fish hatcheries; and supply for bottled mineral water or bottled spring water. Springs have taken on
1155-473: The year round and only flow after heavy rain. Sources that only flow during wet years are often known in German as Hungerbrunnen ("hunger springs"), since folklore claimed a connection between the flow rate of a spring and poor crop yield in a wet year. This appears to be more of a culturally-related superstition , as scientific studies on various Hungerbrunnen have not confirmed such a relationship. An example
1190-430: Was open to the general public for an entrance fee. In 1970, the property was sold for conversion into a private residential development to be known as The Springs . The spring itself is located behind the clubhouse of The Springs , a gated community . Although managed by the St. Johns River Water Management District , it is a private recreation and swimming area for residents of the community and respective guests and
1225-476: Was replete with sacred and storied springs—notably, the Corycian , Pierian and Castalian springs. In medieval Europe, pagan sacred sites frequently became Christianized as holy wells. The term "holy well" is commonly employed to refer to any water source of limited size (i.e., not a lake or river, but including pools and natural springs and seeps), which has some significance in local folklore . This can take
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