Sinkholes in de VS

Alles puur natuur nier ;-)
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baphomet
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Lid geworden op: za 21 aug 2010, 16:08

za 11 jun 2011, 17:43

Tja mensen, vaag nieuws uit de VS... Al luisterend naar Musical Youth kwam ik net op GLP een topic tegen over sinkholes die overal in de VS zijn ontstaan de afgelopen dagen... Wat de neuk?? Zo is er een sinkhole in San Francisco, eentje in Newton, eentje in Brooklyn, eentje in Los Angeles, eentje in Charlotte, eentje in Missoula, eentje in Waynesboro en eentje in Buffalo... Wat is dit voor vaags mensen?? Wat is er gaande??



Op de website van National Geographic is een interessant stuk te vinden over een sinkhole in Guatemala met foto's van hoe het er op diverse plekken in de VS nu uit zou kunnen zien door de sinkholes...

En herinnerd U zich deze in Mofrika nog??

En vrij recent stond men in Quebec (Canada) voor een soortgelijk raadsel...



Wat is er gaande? Gevolgen van dat wat CERN doet (zie ook hier)? Of heeft dit te maken met het verschuiven van het aardmagnetisch veld? Of toch Elenin? Of zijn deze gasten al begonnen met boren misschien?? ;-) Of is er een andere verklaring?

Wie het weet mag het zeggen...

1119 AD
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Nexion
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za 11 jun 2011, 18:08

Weird stuff.
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baphomet
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za 11 jun 2011, 18:33

Ik pak de tekst er even bij DDWW... thanks for the link!
Sinkhole

For the War of 1812 battle, see Battle of the Sink Hole. For the type of wallet, see Wallet band#Swallet.
A sink hole in Oman
The Devil's Hole sinkhole near Hawthorne, Florida, USA.

A sinkhole, also known as a sink, shake hole, swallow hole, swallet, doline or cenote, is a natural depression or hole in the Earth's surface caused by karst processes — the chemical dissolution of carbonate rocks or suffosion processes for example in sandstone. Sinkholes may vary in size from 1 to 600 meters (3.3 to 2,000 ft) both in diameter and depth, and vary in form from soil-lined bowls to bedrock-edged chasms. Sinkholes may be formed gradually or suddenly, and are found worldwide. The different terms for sinkholes are often used interchangeably.

Sinkholes may capture surface drainage from running or standing water, but may also form in high and dry locations.

The mechanisms of formation involve natural processes of erosion or gradual removal of slightly soluble bedrock (such as limestone) by percolating water, the collapse of a cave roof, or a lowering of the water table. Sinkholes often form through the process of suffosion. Thus, for example, groundwater may dissolve the carbonate cement holding the sandstone particles together and then carry away the lax particles, gradually forming a void.

Occasionally a sinkhole may exhibit a visible opening into a cave below. In the case of exceptionally large sinkholes, such as Minyé sinkhole in Papua New Guinea or Cedar Sink at Mammoth Cave National Park, USA, a stream or river may be visible across its bottom flowing from one side to the other.

Sinkholes are common where the rock below the land surface is limestone or other carbonate rock, salt beds, or rocks that can naturally be dissolved by circulating ground water. As the rock dissolves, spaces and caverns develop underground. These sinkholes can be dramatic because the surface land usually stays intact until there is not enough support. Then, a sudden collapse of the land surface can occur.

Sinkholes also form from human activity, such as the rare but still occasional collapse of abandoned mines in places like West Virginia, USA. More commonly, sinkholes occur in urban areas due to water main breaks or sewer collapses when old pipes give way. They can also occur from the overpumping and extraction of groundwater and subsurface fluids. They can also form when natural water-drainage patterns are changed and new water-diversion systems are developed. Some sinkholes form when the land surface is changed, such as when industrial and runoff-storage ponds are created; the substantial weight of the new material can trigger an underground collapse of supporting material, thus, causing a sinkhole.

Sinkholes are usually but not always linked with karst landscapes. In such regions, there may be hundreds or even thousands of sinkholes in a small area so that the surface as seen from the air looks pock-marked, and there are no surface streams because all drainage occurs sub-surface. Examples of karst landscapes dotted with numerous enormous sinkholes are Khammouan Mountains (Laos) and Mamo Plateau (Papua New Guinea).[5] The largest known sinkholes formed in sandstone are Sima Humboldt and Sima Martel in Venezuela.

The most impressive sinkholes form in thick layers of homogenous limestone. Their formation is facilitated by high groundwater flow, often caused by high rainfall – such high rainfall causes formation of the giant sinkholes in Nakanaï Mountains, New Britain island in Papua New Guinea. On the contact of limestone and insoluble rock below it there form powerful underground rivers which may create large underground voids.

In such conditions have formed the largest known sinkholes of the world, like the 662-metre (2,172 ft) deep Xiaozhai tiankeng (Chongqing, China), giant sótanos in Querétaro and San Luis Potosí states in Mexico and others.

Unusual processes have formed the enormous sinkholes of Sistema Zacatón in Tamaulipas (Mexico) – here more than 20 sinkholes and other karst formations have been shaped by volcanically heated, acidic groundwater.This has secured not only the formation of the deepest water-filled sinkhole in the world – Zacatón, but also unique processes of travertine sedimentation in upper parts of sinkholes, leading to sealing of these sinkholes with travertine lids.

The state of Florida in the USA is known for having frequent sinkholes, especially in the central part of the state. The Murge area in southern Italy also has numerous sinkholes. Sinkholes can be formed in retention ponds from large amounts of rain.

Sinkholes have been used for centuries as disposal sites for various forms of waste. A consequence of this is the pollution of groundwater resources, with serious health implications in such areas. In contrast, the Maya civilization sometimes used sinkholes in the Yucatán Peninsula (known as cenotes) as places to deposit precious items and sacrifices.

Many sinkholes are found in Northern Michigan. These are prominent in Alpena County in Northeast Michigan. In Lachine, Michigan there are five sinkholes that are found to be very deep and within 2 miles (3.2 km) from each other. Alpena's visitor information cites their sinkholes as an attraction for visitors to the area. In August 1998 a 16 year old Alpena boy survived a 200 feet (61 m)+ fall in an open sinkhole .75 miles (1.2 km) from Leer road in Lachine, Michigan. A majority of sinkholes in Alpena are also found underwater. Many divers explore these on a regular basis.

When sinkholes are very deep or connected to caves, they may offer challenges for experienced cavers or, when water-filled, divers. Some of the most spectacular are the Zacatón cenote in Mexico (the world's deepest water-filled sinkhole), the Boesmansgat sinkhole in South Africa, Sarisariñama tepuy in Venezuela, and in the town of Mount Gambier, South Australia. Sinkholes that form in coral reefs and islands that collapse to enormous depths are known as Blue Holes, and often become popular diving spots.

The overburden sediments that cover buried cavities in the aquifer systems are delicately balanced by groundwater fluid pressure. The water below ground is actually helping to keep the surface soil in place. Groundwater pumping for urban water supply and for irrigation can produce new sinkholes in sinkhole-prone areas. If pumping results in a lowering of groundwater levels, then underground structural failure, and thus sinkholes, can occur.

Local names of sinkholes

Large and visually unusual sinkholes have been well known to local people since ancient times. Also nowadays sinkholes are grouped and named in site specific or generic names. Some examples of such names are:

cenotes. Characteristic water filled sinkholes in Yucatán Peninsula, Belize and some other regions. Many cenotes have formed in limestone which deposited in shallow seas created by Chicxulub meteorite impact.
tiankengs. These are extremely large sinkholes which are deeper and wider than 100 m, with mostly vertical walls, most often created by the collapse of underground caverns. This term is proposed by Chinese geologists as many of the largest sinkholes are located in China. The largest tiankeng is the 662 m deep Xiaozhai tiankeng, which is also the largest known sinkhole of the world.
sótanos. This name is given to several giant pits in several states of Mexico. The best known is the 372 m deep Sótano de las Golondrinas – Cave of Swallows.
blue holes. This name initially has been given to the deep underwater sinkholes of Bahamas but often is used for any deep water-filled pits formed in carbonate rocks. Name originates from the deep blue color of water in these sinkholes, which in turn is created by the high lucidity of water and the large depth of sinkholes – only the deep blue color of the visible spectrum can penetrate such depth and after reflection return back. The deepest known undersea sinkhole is Dean's Blue Hole in Bahamas.
black holes. Group of unique round, water filled pits in Bahamas. These formations seem to be dissolved in carbonate mud from above, by the sea water. Dark color of water is caused by the layer of phototropic microorganisms concentrated in dense, purple colored layer in 15 – 20 metre depth – this layer "swallows" the light. Metabolism in the layer of microorganisms causes heating of water – the only known case in natural world where microorganisms create significant thermal effects. Most impressive is Black Hole of Andros.

What has been called a "sinkhole" by the popular press formed suddenly in Guatemala in May 2010. Torrential rains from Tropical Storm Agatha and a bad drainage system were blamed for creating the 2010 "sinkhole" that swallowed a three story building and a house.

This large vertical hole measured approximately 66 feet (20 m) wide and 100 feet (30 m) deep. A similar hole had formed nearby in February 2007.

This large vertical hole, which is called a "sinkhole" in the popular press, is not a true sinkhole as it did not form by the dissolution either of limestone, dolomite, marble, or any other carbonate rock.[17][18] Guatemala City is not underlain by any carbonate rock. Instead, thick deposits of volcanic ash, unwelded ash flow tuffs, and other pyroclastic debris underlie all of Guatemala City. Thus, it is impossible for the dissolution of carbonate rock to have formed the large vertical holes that swallowed up parts of Guatemala City in 2007 and 2010.

The large holes that swallowed up parts of Guatemala City in 2007 and 2010 are a spectacular example of "piping pseudokarst", created by the collapse of large cavities that developed in the weak, crumbly Quaternary volcanic deposits that underlie the city. Although weak and crumbly, these volcanic deposits have enough cohesion to allow them to stand in vertical faces and develop large subterranean voids within them. Initially, a process called "soil piping" created large underground voids as water from leaking water mains flowed through these volcanic deposits and initially washed fine volcanic materials out of them, then progressively eroded and removed coarser materials. Eventually, these underground voids became large enough that their roofs collapsed to create large holes.
1119 AD
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mrslucy
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zo 12 jun 2011, 00:02

erg vaag..hopelijk blijft t ons hier gespaard.
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Neut
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do 16 jun 2011, 17:59

Welleens kleinschalig meegemaakt. Kan best lijp zijn. Ligt meestal aan grondwater.
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ninti
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do 21 jul 2011, 20:52

Guatemalan woman finds huge sinkhole under bed

Sinkhole, 12m deep and 80cm in diameter, forms at Guatemala City home of 65-year-old Inocenta Hernandez
You may sometimes wish the ground would swallow you up, but for some the danger of disappearing down a deep hole is all too real.

The people of Guatemala City are increasingly unable to trust what's beneath their feet because of treacherous sinkholes.

The latest person to get a shock was 65-year-old Inocenta Hernandez. "When we heard the loud boom we thought a gas canister from a neighbouring home had exploded, or there had been a crash on the street.

"We rushed out to look and saw nothing. A gentleman told me that the noise came from my house, and we searched until we found it under my bed."

A reporter for AFP news agency who visited her home, estimated the hole, which appeared late on Monday, was 12.2m (40ft) deep and 80cm (32inches) in diameter.

"Thank God there are only material damages, because my grandchildren were running around the house, into that room and out to the patio," said Hernandez.

Others have not been so lucky. A giant sinkhole that formed nearby in 2007 was 150m deep and swallowed several homes and a truck, killing three people. Local residents were forced to evacuate for days.

A 2010 sinkhole also in the same area measuring 20m wide and about 30m deep swallowed a three-story building and a nearby house.

Police, members of the country's natural disaster office and water utility company officials have all visited the scene of the latest hole.

Sinkholes, formed by natural erosion, can be gradual but are often sudden. Guatemala City is built on volcanic deposits and especially prone to sinkholes. They are often blamed on leaky sewers or on heavy rain.

http://www.guardian.co.uk/world/2011/ju ... -under-bed
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Geel kristal ster
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za 24 mar 2012, 23:57



Is geen onverklaarbaar fenomeen, deels misschien wel, maar is een erg heel erg natuurlijke gegeven, water is veel sterker en kan steenmassa's zodanig uitslijten voor zover het kieren en zwakke openingen vindt om helemaal naar de onderlagen van de aarde te reizen !



GKS
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combi
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do 16 aug 2012, 13:02

People living in the Bayou Corne community say they're ready for answers
Wednesday, August 15, 2012 - 7:10pm
http://www.nbc33tv.com/news/local-news/ ... or-answers

(video van, op de site)

BAYOU CORNE,LA (NBC33) — People living near the site of the sinkhole say they're glad to see the equipment come but wonder if the drilling will produce any answers.

Big rigs full of equipment rolled into the Bayou Corne area Wednesday brining in materials for a relief well at an abandoned salt cavern near a huge sinkhole.

"I think it's a good thing to get more answers more information," said Bayou Corne resident Krista Thompson. "It shows that they are actually trying."

Krista Thompson lives in the mandatory evacuation zone she says she's waited for over a week to see this kind of progress.

"Texas Brine is a little laid back on it seems like maybe they should have started drilling," said Thompson. "If it's going to take 30 to 40 days to get information and results from drilling, maybe they should have started this two weeks ago when the sinkhole first started."

Texas Brine Company plans on drilling into an abandon salt cavern and test to see what's going on in the cavern. People in the area say they're not sure it's safe.

"If the salt dome was to collapse it be catastrophic," said Thompson. "If there was an explosion catastrophic. "

"Backfire on them you're talking about putting a rig in there," said Bayou Corne resident Ernest Boudreaux Jr. "What's to say that the rig isn't going to go down in it. That hole can come across the highway at any time."

Ernest Boudreaux Junior says many of his neighbors have evacuated, but he's waiting out the evacuation at home for now.

"A lot of people can't just pack up and say well i'm going stay in a hotel you're looking at 100 dollars a night and your talking about 45 days, " said Thompson.

He's worried that those who own property in the area will not be able to sell their property at a decent price thanks to the sinkhole situation.

Assumption parish officials say they will be notifying people who remain in the area before drilling begins on the relief well. They say it could cause lots of a noise and some shaking during the first few days.

Officials with GOHSEP say the sinkhole has grown it is now 476 feet (from the northeast to the southwest) by 640 feet (from the northwest to the southeast). State and local officials monitoring the situation will continue with regular flyovers throughout the duration of the incident.
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vr 17 aug 2012, 11:46

CNN: Right now ‘red zone’ established around sinkhole after concerns about quality of air coming out — Sensors placed nearby (VIDEO)
http://enenews.com/cnn-right-now-a-red- ... arby-video

Lieutenant General Russel Honore, US Army (Retired):
“Right now the DEQ [Department of Environmental Quality] has put out sensors and has established a red zone around this sinkhole because they’re concerned about the quality of air that’s coming out of that sinkhole.”

==============================
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vr 17 aug 2012, 11:49

Giant Louisiana sinkhole expands to 526-feet and swallows a BOAT (but the two clean-up workers in it were rescued just in time)

Huge 400-foot deep hole swallows another 50-feet of land today
Two clean-up workers had to be rescued by air boat as their vessel disappeared into the pool of water
Fears remain that low levels of radiation are being emitted from the sinkhole
Gas bubbles have been bubbling in the Louisiana bayou for weeks and residents have felt small tremors for years
Scientists expect it to continue growing
Some residents have refused to leave their homes

Afbeelding


By Daily Mail Reporter

PUBLISHED: 23:02 GMT, 16 August 2012 | UPDATED: 11:18 GMT, 17 August 2012

http://www.dailymail.co.uk/news/article ... -time.html
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za 18 aug 2012, 13:36

Officials: Sinkhole growing in direction of drilling rig there to investigate troubled salt cavern — Now about 900 feet from edge
Published: August 18th, 2012 at 2:59 am ET
By ENENews


Title: Assistance check
Source: The Advocate
Author: By David J. Mitchell
Date: August 18, 2012
...

In a separate development, Texas Brine and parish officials said crews had nearly completed assembly Friday of a mobile drilling rig trucked to a site near the sinkhole.

The initial steps to start 24-hour-per-day drilling were expected to begin between 7 p.m. and midnight Friday. Drillers were to start driving the well casing, a process that could be noisy and cause some vibration, parish officials said.

DNR ordered Texas Brine to drill an observational well to see what is happening in regard to the plugged and abandoned salt cavern in the Napoleonville Salt Dome suspected as the cause of the sinkhole and natural gas releases in the area.

The rig rises about 14 stories above a dirt pad amid cypress swamps surrounding Texas Brine’s location south of La. 70 South. The rig is about 900 feet from the edge of the sinkhole, Cranch said.

The sinkhole also grew Friday by about 20 feet from its eastern edge, inching toward Texas Brine, parish officials said.

...
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do 23 aug 2012, 18:59



This is a History Channel documentary of Lake Peigneur in Louisiana in 1980 after an oil rig drilled into a salt mining dome...
Oh, I forgot to add, some people have been emailing me about being scared, so I have a list of simple remedies you can get from your local health stores (medical advice courtesy of a Witch Doctor herbal remedy friend!):
I suggest you advise your patients to try one or more of the following herbal remedies in YOUR tradition:
- Achillea milleforme (Yarrow) (*)
- Rhizoma Acori calami (calamus root)
- Cimicifuga racemosa (Black cohosh)
- Lavandula angustifolia (Lavandel) (*)
- Leonuria cardiaca (Motherwort) (*)
- Lycopus virginius (Bugleweed)
- Melissa officinalis (Lemon Balm)
- Viscum album (mistletoe) (*)
- Passiflora incarnata (passion flower) (*)
- Pulsatilla vulgaris (Pasqueflower)
- Rosa damascena (Rose flower)
- Salvia officinalis (salvia root) (*)
- Sambucus nigra (Elder Flower)
- Scutellaria laterifolia (Scute)
- Valeriana officinalis (Valerian) (*)
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do 23 aug 2012, 19:02

Officials: Sinkhole measurements unavailable — Police want study of “simultaneous venting of the aquifer as the exploratory rig is being drilled”
Published: August 23rd, 2012 at 12:00 pm ET
By ENENews


Title: 8:55 a.m. Morning Update
Source: Assumption Parish Police Jury
Date: August 23, 2012
At the Police Jury meeting last night, the Jury unanimously adopted a resolution requesting DNR to perform a study on the aquifer and simultaneous venting of the aquifer as the exploratory rig is being drilled. They also adopted a resolution to request DOTD to perform a study of a bypass route of LA-70. Please note that this does NOT mean the closure of LA-70, it is an addition of alternate route, more efficient and convenient than the current detour route (through Bayou Pigeon or Bayou L’Ourse). The Jury will formally request the State Legislature for the appropriation of funds for these projects to be completed.
Title: 2:30 p.m. Afternoon Update
Source: Assumption Parish Police Jury
Date: August 22, 2012
Updated measurements of the sinkhole site have not been available because the direct site is remains prohibited. Civil Air Patrol has been contracted to flyover and provide aerial photographs that can be compared to the photographs they supplied on August 10, 2012. As soon as we have those, we will be able to provide the public with updated measurements and side by side comparisons.
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