When it is cool,we bath and drink hot water.For heating the water,we take some quantity of water and heat on fire .Water is from Earth and part of Earth.But if Earth itself heats the water what we call that!!!!!!!!It is called as HOT SPRING.
WHAT IS HOT SPRING:
The definition of Hot Spring is natural spring with water temperature above body temperature above body temperature-normally between 36.5 and 37.5 degree Celsius. It is a spring that is produced by the emergence of geo thermally heated ground water from the Earth’s crust.It is the most common hydro thermal feature of Yellow Stone,is an area where heated water can easily rise through cracks and fractures in the Earth’s surface.The movement of water is not blocked by mineral deposits.The circulation of water is fairly continuous and does not result in geyser eruptions.Very hot water cools as it reaches the surface,sinks,and is replaced by hotter water from the Beneath.At this spring,Siliceous Sinter is precipitated from the silica rich water and is deposition along the edge of the pool.This is represented by the white mineral deposits furthest from the colorful edge of the hot spring.
Grand Prismatic spring is the hot spring which is located in Yellow Stone National Park,It is the largest hot spring in the United States,and the third largest in the World,after Flying Pan lake in New Zealand and the Boiling lake in Domanica.Grand Prismatic spring is located in Midway geyser Basin.
Generally the history of the hot spring is based on the Geology of the area.The park lies over a hot spot in the Earth’s crust,where hot molten rock rises to the surface.Over the past 18 million years,the area’s volcanic has shaped the surrounding landscape through a series of eruptions Grand Prismatic spring sits on a bed of Rhyolitic rock located on the West side of the present Yellow stone Caldera.Caldera. Rhyolite is a light colored volcanic rock with high silica content.Water deep in the Earth is warmed by the heat of the Magma.The hot water circulates and dissolves some of the silica in the rocks,carrying it in the solution to the surface of the hot spring.As the mineral-rich hot water flows over the ground and cools,silica compounds come out of solution and are deposited as a precipitate called siliceous sinter,creating the white-grey landscape around the spring.Many violent incidents happened in this area.During those incidents,magma bursts from the ground so rapidly that the overlying land collapses in to empty chamber forming a depression called a Caldera.The Yellow stone region sits on top of three overlapping Calderas,the latest of which was formed during an eruption more than 6,00,000 years ago.There is no obvious Sulfur i.e.,. rotten egg smell near Grand Prismatic spring,so it was concluded that no Hydrogen sulfide gas is present.
Up to now all this history deals with the history of the spring and its biological conditions .European explorers and surveyors has first recorded the spring.In 1839,a group of fur trappers from American fur company crossed the mid way geysers basins and made mote of a “boiling lake”,which is named as Grand Prismatic spring,with a diameter of 300 feet i.e.,.90 meters.In 1871 the Wash bum-Lang ford-Doane Expeditions visited the spring,noting a 50 -feet i.e.,.15 meter geyser.It measures approximately 370 feet i.e.,.112.8 meter in diameter and is over 121 feet i.e.,.37 meter deep.
HOW THE COLORS ARE FORMED ON SPRING:
The different colors which appear on the spring are due to the pigmented bacteria mats that grow around the edges of the mineral-rich water.The bacteria produce colors ranging from green to red;the amount of color in the microbial mats depends on the ratio of chlorophyll to carotenoids and on temperature of the water.In summer, the mats tend to be orange and red,where as in the winter the mats are usually dark green.The center of the pool is sterile due to extreme heat.The deep blue color of the water in the center of the pool results from the intrinsic blue color of water,itself the result of water’s selective absorption of red wavelengths of visible light.The water is a vibrant blue,with red color like lava surrounding it.The temperature can be determined by looking at the color of the spring.
Grand Prismatic spring can be seen in the National park of Wyoming in U.S.A.each year. The spring will release about 560 gallons per minute at a temperature of 160 degree Fahrenheit.The water temperature can vary from about 147 to 188 degrees Fahrenheit during the year.The temperature in the spring is impossible for us to swim .The water gets its heat from underground vents which works as part of the volcanic system that Yellow stone sits on.
We need to pay 25 dollars per vehicle or 12 dollars per person to enter the National park and go all around the park.Visitors who want to see Grand Prismatic spring will find the entrance of the spring closest to the West entrance of the park.At Grand Prismatic spring there is a wooden walk way that takes visitors over the Earth,close to bacteria and spring to get a truly decent view of it.Photos can be taken on the walkway with the steam rising bacteria edging closer to the walkway.All the surroundings of this spring are covered with pine trees which adds lush green colors to the view of the spring and also hills and mountains are present around the hill.