"Upper Mantle Melting”
Is this a Gigantic Catastrophe in the Making?
- Situated under western US, 217 miles (350km) beneath the Earth's surface
- Scientists used world's largest array of seismic sensors to map area
- Melting carbon covers an area of 700,000 sq miles (1.8 million sq km)
- Upper mantle could contain up to 100 trillion metric tonnes of melted carbon
- Its discovery challenges what researchers have assumed about how much carbon is trapped inside the planet
The area on this map also includes the Oroville Dam above Sacramento
The deep carbon reservoir discovered will eventually make its way to the surface through volcanic eruptions and contribute to climate change albeit very slowly, but a sudden release could have dire consequences.
The study, conducted by geologists at Royal Holloway University in London, used a huge network of 583 seismic sensors that measure the Earth's vibrations, to create a picture of the area's deep sub surface. Known as the upper mantle, this section of the Earth's interior is known for by its high temperatures where solid carbonates melt, creating distinctive seismic patterns.
What they found was a vast buried deposit of molten carbon, which produces carbon dioxide and other gases, situated under the Western US, 217 miles (350km) beneath the Earth's surface. As a result of this study, published in Earth and Planetary Science Letters, scientists now believe the amount of CO2 in the Earth's upper mantle may be up to 100 trillion metric tons.
Source: DailyMail [no link]
- If just a fraction of the carbon found by the Royal Holloway team were released into the atmosphere, it could have grave implications for the planet.
- Just one per cent of the CO2 stored would be equivalent to burning 2.3 trillion barrels of oil.
- If a substantial amount was released all at once, it could bring about an environmental disaster on the scale of nuclear warfare.
- One scenario in which this could happen is through the eruption of the Yellowstone supervolcano.
- The volcano at Yellowstone National Park in Wyoming and Montana last erupted 640,000 years ago.
- If it were to erupt, it would be one thousand times as powerful as the 1980 Mount St Helens eruption and have the potential to blanket the US in a 'nuclear winter'.
Government severely misjudged strength of Oroville emergency spillway, sparking a crisis. “There is no way to rationalize running water down a hillslope with deep soils and a forest on it and weak bedrock,” said Jeffrey Mount, a UC Davis emeritus professor of geology and expert on California water. Federal and state officials said the cause of the spillway’s near-failure was under investigation.
Continued erosion of Oroville Dam’s main spillway part of ‘normal process,’ state officials say
Two small Earthquakes were recorded near Lake Oroville in the last 24 hrs, which appear to be a result of the fast lake level changes, and the subsequent release of pressure from water weight. Note the two yellow dots on the USGS map below:
The predicted earthquakes due to extreme lake level change have started. 2 in the last hour. 300,000,000 pounds of water has been removed in two days, that will cause the earth to jiggle a bit. These were predicted and should not cause any problems.
Rain damage is Wakeup Call to fix . . . infrastructure
FLOOD FEARS RENEWED AS CALIFORNIA BRACES FOR ANOTHER STORM