I Can’t Sleep - Geysers | Gentle Bedtime Reading for Sleep
Episode Date: December 3, 2024Drift off with this calm bedtime reading about geysers, created to ease insomnia and bring gentle rest. In this soothing episode, Benjamin explores the fascinating natural phenomenon of geysers, from ...their geological formation deep underground to famous examples like Old Faithful. His steady, reassuring narration turns volcanic heat and water pressure into peaceful storytelling, helping you release stress and quiet your thoughts. There is no whispering or hypnosis, only calm, fact-filled narration designed to guide you into relaxation. Press play, settle in, and let the story of geysers carry you gently into sleep. Want More? Request a Topic: https://www.icantsleeppodcast.com/request-a-topic Ad-Free Episodes: https://icantsleep.supportingcast.fm/ Shop Sleep-Friendly Products: https://www.icantsleeppodcast.com/sponsors Join the Discussion on Discord: https://discord.gg/myhGhVUhn7 This content is derived from the Wikipedia article on Geysers, available under the Creative Commons Attribution-ShareAlike (CC BY-SA) license. Read the full article: Wikipedia – Geysers. Happy sleeping! Learn more about your ad choices. Visit megaphone.fm/adchoices
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Welcome to the I Can't Sleep Podcast, where I read random articles from across the web to
bore you to sleep with my soothing voice. I'm your host, Benjamin Boster.
And today's episode is from a Wikipedia article titled, Geyser.
A geyser is a spring with an intermittent,
discharge of water ejected turbulently and accompanied by steam.
The formation of geysers is fairly rare, and is caused by particular hydrogeological conditions
that exist only in a few places on Earth.
Generally, geyser field sites are located near active volcanic areas, and the geyser effect
is due to the proximity of magma.
surface water works its way down to an average depth of around 2,000 meters or 6,600 feet,
where it contacts hot rocks.
The pressurized water boils, and this causes the geyser effect of hot water and steam spraying out of the geyser's surface vent.
A geyser's eruptive activity may change or cease due to ongoing mineral deposition within the geyser plumbing,
Exchange of functions with nearby hot springs, earthquake influences, and human intervention.
Like many other natural phenomena, geysers are not unique to Earth.
Jet-like eruptions often referred to as cryogeysers have been observed on several of the moons of the outer solar system.
Due to the low ambient pressures, these eruptions consist of vapor without late.
They are made more easily visible by particles of dust and ice carried aloft by the gas.
Water vapor jets have been observed near the south pole of Saturn's moon Enceladus, while nitrogen
eruptions have been observed on Neptune's moon Triton.
There are also signs of carbon dioxide eruptions from the southern polar ice cap of Mars.
In the case of Enceladus, the plumes are believed to be driven by internal energy.
In the case of the venting on Mars and Triton, the activity may be a result of solar heating
via a solid state greenhouse effect.
In all three cases, there is no evidence of the subsurface hydrological system which differentiates
terrestrial geysers from other sorts of venting, such as fumaroles.
The term geyser in English dates back to the late 18th century and comes from geysers spelled
G-E-Y-S-I-R, which is a geyser in Iceland.
Its name means one who gushes.
Geysers are non-permanent geological features.
They are generally associated with areas of recent magnetism.
As the water boils, the resulting pressure forces a superheating,
column of steam and water to the surface to the geyser's internal plumbing.
The formation of geysers specifically requires a combination of geyser's
conditions that are usually found in volcanic terrain, heat, water, and a subsurface hydraulic
system with the right geometry. The heat needed for geyser formation comes from magma
that needs to be close to the surface of the earth.
For the heated water to form a geyser,
a plumbing system made of fractures, fissures, porous spaces,
and sometimes cavities is required.
This includes a reservoir to hold the water while it is being heated.
Geysers tend to be coated with geyserite or silicious scintor.
The water and geysers comes in contact with hot silica-containing rocks,
such as rylite.
The heated water dissolves the silica.
As it gets closer to the surface, the water cools and the silica drops out of solution,
leaving a deposit of amorphous opal.
Gradually, the opal anneals into quartz, forming geyserite.
Geyserite often covers a microbial mats that grow in geysers.
As the mats grow and the silica is deposited, the mats can form up.
to 50% of the volume of the geyserite. Geyser activity, like all hot spring activity, is caused by
surface water gradually seeping down through the ground until it meets geothermally heated rock.
In non-erruptive hot springs, the heated water then rises back toward the surface by convection
through porous and fractured rocks, while in geysers the water instead is explosively forced upwards
by the high steam pressure created when water boils below.
Geysers also differ from non-erruptive hot springs in their subterranean structure.
Geysers have constrictions in their plumbing that creates pressure buildup.
As the geyser fills, the water at the top of the column cools off,
but because of the narrowness of the channel,
convective cooling of the water in the reservoir is impossible.
The cooler water above presses down on the hotter water beneath,
not unlike the lid of a pressure cooker,
allowing the water and the reservoir to become superheated,
i.e., to remain liquid at temperatures well above the standard pressure boiling point.
Ultimately, the temperatures near the bottom of the geyser rise to a point where boiling begins,
forcing steam bubbles to rise to the top of the column.
As they burst through the geysers' vent, some water overflows or splashes out,
reducing the weight of the column and thus the pressure on the water below.
With this release of pressure, the superheated water flashes into steam,
boiling violently throughout the column.
The resulting froth of expanding steam and hot water then sprays out of the geyser vent.
Eventually the water remaining in the geyser cools back to below the boiling point and the eruption ends.
Heated groundwater begins seeping back into the reservoir, and the whole cycle begins again.
The duration of eruptions and the time between successive eruptions vary greatly from geyser to geyser.
Strocker and Iceland erupts for a few seconds every few minutes, while Grand Geyser and
the United States erupts for up to 10 minutes every 8 to 12 hours.
There are two types of geysers,
fountain geysers, which erupt from pools of water,
typically in a series of intense, even violent bursts,
and cone geysers,
which erupt from cones or mounds of salicious cinter,
including geyserite,
usually in steady jets that last anywhere from a few seconds to several minutes.
Old faithful, perhaps,
the best-known geyser at Yellowstone National Park, is an example of a cone geyser.
Grand geyser, the tallest predictable geyser on Earth, also at Yellowstone National Park,
is an example of a fountain geyser.
There are many volcanic areas in the world that have hot springs, mud pods, and fumaroles,
but very few have erupting geysers.
The main reason for their rarity is that multiple intense transient forces
must occur simultaneously for a geyser to exist.
For example, even when other necessary conditions exist,
if the rock structure is loose,
eruptions will erode the channels
and rapidly destroy any nascent geysers.
Geysers are fragile,
and if conditions change,
they may go dormant or extinct.
Many have been destroyed simply by people throwing debris into them,
while others have ceased to erupt due to dewatering by geothermal power plants.
However, the geyser in Iceland has had periods of activity and dormancy.
During its long dormant periods, eruptions were sometimes artificially induced,
often on special occasions by the addition of surfactant soaps to the water.
Some geysers have specific colors,
because despite the harsh conditions,
life is often found in them, and also in other hot habitats in the form of thermophilic prokaryotes.
No known eukaryotes can survive over 60 degrees Celsius.
In the 1960s, when the research of the biology of geysers first appeared,
scientists were generally convinced that no life can survive above around 73 degrees Celsius maximum.
The upper limit for the survival of cyanobacteria
as the structure of key cellular proteins
and deoxyribonucleic acid DNA would be destroyed.
The optimal temperatures for thermophilic bacteria
was placed even lower, around 55 degrees Celsius on average.
However, as the observations prove that life can exist
at high temperatures
and that some bacteria even prefer temperatures higher than the boiling point of water.
Dozens of such bacteria are known.
Thermophiles prefer temperatures from 50 to 70 degrees Celsius,
while hypothermophiles grow better at temperatures as high as 80 to 110 degrees Celsius.
As they have heat-stable enzymes that retain their activity even at high temperatures,
they have been used as a source of thermostable tools,
which are important in medicine and biotechnology.
For example, in manufacturing antibiotics, plastics, detergents, and fermentation products.
Among these, the first discovered and the most important for biotechnology is thermos Aquaticus.
As has been mentioned, geysers are quite rare, requiring a combination of growering
water, heat, and fortuitous plumbing. The combination exists in few places on earth.
Yellowstone is the largest geyser locale, containing thousands of hot springs and approximately
300 to 500 geysers. It is home to half of the world's total number of geysers in its nine geyser basins.
It is located mostly in Wyoming, USA, with small portions in Montana and Idaho.
Yellowstone includes the world's tallest active geyser, steamboat geyser, and Norris Geyser Basin.
The valley of geysers in Russia, located in the Kamchatka Peninsula of Russia,
is the second largest concentration of geysers in the world.
The area was discovered and explored by Tatyana Ustinova in 1941.
There are about 200 geysers in the area, along with many hot water springs and perpetual.
spouters. The area was formed by vigorous volcanic activity. The peculiar way of eruptions is an
important feature of these geysers. Most of the geysers erupt at angles, and only very few have the
geyser cones that exist at many other of the world's geyser fields. On the 3rd of June 2007,
a massive mud flow influenced two-thirds of the valley. It was then reported that a thither of
thermal lake was forming above the valley. Four of the eight thermal areas in the valley were
covered by the landslide or by the lake. Velik and geyser, one of the fields' largest, was not
buried in the slide. The slide shortened its period of eruption from 379 minutes before the
slide to 339 minutes after through 2010. El Tateo Chile. The name of
El Tatio comes from the Quequa word for oven.
El Tatio is located in the high valleys of the Andes in Chile,
surrounded by many active volcanoes at around 4,200 meters above mean sea level.
The valley is home to approximately 80 geysers at present.
It became the largest geyser field in the southern hemisphere
after the destruction of many of the New Zealand geysers,
and is the third largest geyser field in the world.
The salient feature of these geysers is that the height of their eruptions is very low,
the tallest being only 6 meters or 20 feet high,
but with steam columns that can be over 20 meters or 66 feet high.
The average geyser eruption height at El Tatio is about 750 millimeters or 30 inches.
The Topal volcanic zone is located on New Zealand's North Island.
It is 350 kilometers long by 50 kilometers wide
and lies over a subduction zone in the earth's crust.
Mount Ruapéhu marks its southwestern end,
while the submarine Fakatane Sea Mound
is considered its northeastern limit.
Many geysers in this zone were destroyed
due to geothermal developments in a hydroelectric reservoir,
only one geyser basin at Faka-Rewal-Rewal remains.
In the beginning of the 20th century,
the largest geyser ever known, the Weymongu geyser, existed in the zone.
It began erupting in 1900
and erupted periodically for four years
until a landslide changed the local water table.
eruptions of Wymongu would typically reach 160 meters or 520 feet,
and some superbursts are known to have reached 500 meters or 1,600 feet.
Recent scientific work indicates that the Earth's crust below the zone
may be as little as 5 kilometers thick.
Beneath this lies a film of magma 50 kilometers wide
and 160 kilometers long.
Due to the high rate of volcanic activity in Iceland, it is home to some of the most famous geysers in the world.
There are around 20 to 29 active geysers in the country, as well as numerous formerly active geysers.
Icelandic geysers are distributed in the zone stretching from southwest to northeast,
along the boundary between the Eurasian plate and the North American plate.
Most of the Icelandic geysers are comparatively short-lived.
It is also characteristics that many geysers here are reactivated or newly created after earthquakes,
becoming dormant or extinct after some years or some decades.
The most prominent geysers of Iceland are located in Haugodeler.
The great geyser, which first erupted in the 14th century, gave rise to the word geyser.
By 1896, Geyser was almost dormant before an earthquake that year caused eruptions to begin again,
occurring several times a day.
But in 1916, eruptions all but ceased.
Throughout much of the 20th century, eruptions did happen from time to time, usually following earthquakes.
Some man-made improvements were made to the spring, and eruptions were forced with soap on
special occasions. Earthquakes in June 2000 subsequently reawaken the giant for a time,
but it is not currently erupting regularly. The nearby stroker geyser erupts every five to eight
minutes to a height of some 30 meters or 100 feet. There used to be two large geyser fields in
Nevada, Beowahua and Steamboat Springs, but they were destroyed by the installation of nearby
geothermal power plants. At the plants, geothermal drilling,
reduce the available heat and lowered the local water table to the point that geyser activity could no longer be sustained.
There are various other types of geysers which are different in nature compared to the normal steam-driven geysers.
These geysers differ not only in their style of eruption, but also in the cause that makes them erupt.
Artificial geysers
In a number of places where there is geothermal activity, wells have been drilled and
fitted with impermeable casements that allow them to erupt like geysers.
The vents of such geysers are artificial, but are tapped into natural hydrothermal systems.
These so-called artificial geysers, technically known as erupting geothermal wells, are not true geysers.
Little old faithful geyser in Calistoga, California, is an example.
The geyser erupts from the casing of a wall drilled in the late 19th century, which opened up a dead geyser.
In the case of the big mine run geyser in Ashland, Pennsylvania, the heat powering the geyser, which erupts from an abandoned mine vent, comes not from geothermal power, but from the long simmering Centralia minefire.
Perpetual spouter. This is a natural hot spring that spouts water constantly,
without stopping for recharge.
Some of these are incorrectly called geysers,
but because they are not periodic in nature,
they are not considered true geysers.
Geysers are used for various activities,
such as electricity generation, heating, and geotourism.
Many geothermal reserves are found all around the world.
The geyser fields in Iceland are some of the most commercially viable geyser locations in the world.
Since the 1920s, hot water directed from the geysers has been used to heat greenhouses
and to grow food that otherwise could not have been cultivated in Iceland's inhospitable climate.
Steam and hot water from the geysers has also been used for heating homes since 1943 in Iceland.
In 1979, the U.S. Department of Energy actively promoted development of geothermal energy
and the geysers Calistoga known geothermal resource area, KGRA, near Calistoga, California,
through a variety of research programs and the geothermal loan guarantee program.
The department is obligated by law to assess the potential environmental impacts of geothermal development.
There are many bodies in the solar system where eruptions which superficially resemble terrestrial geysers
have been observed or are believed to occur.
Despite being commonly referred to as Kaisers,
they are driven by fundamentally different processes,
consist of a wide range of volatiles,
and can occur on vastly disparate scales.
From the modestly sized Martian carbon dioxide jets
to the immense plumes of Enceladus.
Generally, there are two broad categories of feature,
commonly referred to as geysers, sublimation plumes, and cryovulcanic plumes, also referred to as cryogeysers.
Sublimation plumes are jets of sublimated volatiles and dust from shallow sources under icy surfaces.
Known examples include the CO2 jets on Mars and the nitrogen eruptions on Neptune's Moon Triton.
On Mars, carbon dioxide jets are believed to occur in the southern.
polar region of Mars during spring, as a layer of dry ice accumulated over winter is warmed
by the sun. Although these jets have not yet been directly observed, they leave evidence visible
from orbit in the form of dark spots and lighter fans atop the dry ice.
These features consist primarily of sand and dust blown out by the outbursts, as well as spider-like
patterns of channels created below the ice by the rapid flow of CO2 gas. There are a plethora of
theories to explain the eruptions, including heating from sunlight, chemical reactions,
or even biological activity. Trayton was found to have active eruptions of nitrogen and dust
by Voyager 2 when it flew past the moon in 1989. These blooms were up to 8 kilometers high,
where winds would blow them up to 150 kilometers downwind,
creating long, dark streaks across the otherwise bright south polar ice camp.
There are various theories as to what drives the activity on Trident,
such as solar heating through transparent ice,
cryovulcanism, or basal heating of nitrogen ice sheets.
Cryovulcanic plumes or cryogisers generally refer to large-scale eruptions
of predominantly water vapor
from active cryovulcanic features
on certain icy moons.
Such blooms occur on Saturn's moon
in Celadus and Jupiter's moon Europa.
Plumes of water vapor,
together with ice particles
and smaller amounts of other components
such as carbon dioxide,
nitrogen, ammonia, hydrocarbons, and silicids
have been observed erupting from vents
associated with the tiger stripes in the south polar region of Enceladus by the Cassini orbiter.
These plumes are the source of the material in Saturn's E-ring.
The mechanism which causes these eruptions are generated remains uncertain,
as well as to what extent these are physically linked to Enceladus's subsurface ocean,
but they are believed to be powered at least in part by tidal heating.
Cassini flew through these blooms several times, allowing direct analysis of water from inside another solar system body for the first time.
In December 2013, the Hubble Space Telescope detected water vapor plumes potentially 200 kilometers high above the South Polar region of Europa.
Reexamination of Galileo data also suggested that it may have flown through a plume during a fly-by in 1997.
Water was also detected by the Keck Observatory in 2016, announced in a 2019 Nature article speculating the cause to be a cryovulcanic eruption.
It is thought that Europa's lanai might be venting this water vapor into space in a similar manner to the tiger stripes of Enceladus.
Cold water geysers are geysers that have eruptions whose water spurts are propelled by CO2 bubbles, instead of the hot,
steam which drives the more familiar hot water geysers. The gush of a cold water geyser is identical to the
spurred from a freshly open bottle of soda pop. Cold water geysers look quite similar to their
steam-driven counterparts. However, their CO2-laden water often appears wider and more frothy.
In cold water geysers, the supply of CO2-laden water lies confined in an aquifer, in which water
and CO2 are trapped by less permeable overlined strata. The more familiar hot water geysers
derive the energy for their eruptions from the proximity to relatively near-surface magma.
In contrast, whereas cold water geysers might also derive their supply of CO2 from magmatic sources,
by definition of cold water, they do not also obtain sufficient heat to provide steam
pressure, and their eruptions are propelled only by the pressure of dissolved CO2.
The magnitude and frequency of such eruptions depend on various factors, such as plumbing
depth, CO2 concentrations and refresh rate, aquifer water yield, etc. That concludes this episode of
the I Can't Sleep podcast.
