Category Archives: Volcanoes

Mud Pot or Mud Pool and Paint Pot: Landforms Resulting from volcanic and Biological Activity

One of the most interesting looking features of a thermal area is mudpots. A mudpot  or mud pool is an acidic hot spring, or fumarole, with limited water. It usually takes the form of a pool of bubbling mud. The acid … Continue reading

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Earth Scientists Say to Jupiter’s Moon Io: Your Volcanoes Are in the Wrong Place

Jupiter’s moon Io is the most volcanically active world in the whole Solar System, with hundreds of volcanoes, some erupting lava fountains up to 250 miles high. But, concentrations of volcanic activity are significantly displaced from where they are expected … Continue reading

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Montmorillonite Clay

Montmorillonite is a very soft phyllosilicate group of minerals that typically form in microscopic crystals, forming a clay. It is named after Montmorillon in France. Montmorillonite, a member of the smectite family, is a 2:1 clay, meaning that it has … Continue reading

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Synthetic Aperture Radar Using ‘Inflation’ Monitoring could Predict Volcanic Eruptions

The world’s deadliest and largest volcanic eruptions happen in Indonesia. Future eruptions in this jungle-filled region could be better predicted by using satellite radar to detect swelling magma near the summit of those volcanoes, a new study suggests. To search … Continue reading

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Spiral Lava Flow On Mars!!

High-resolution photos of lava flows on Mars show coiling spiral patterns  resembling snail or nautilus shells. The discovery, made by Arizona State University graduate student Andrew Ryan, was published in a paper published April 27, 2012, in the scientific journal Science.The new discovery is the … Continue reading

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Cleveland volcano in Alaska Could Erupt at Any Moment

The Alaska Volcano Observatory has issued an eruption advisory for the 5,676 foot-tall Cleveland Volcano, located on the uninhabited island of Chuginadak in the Aleutian chain about 940 miles southwest of Anchorage. The advisory was based on “thermal anomalies” detected … Continue reading

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ISRO finds cave in moon on analysis of Chandrayan-1 data

Scientists at the Indian Space Research Organization have discovered a giant underground chamber on the moon, which they feel could be used as a base by astronauts on future manned missions to moon.An analysis by an instrument on Chandrayaan-1 revealed … Continue reading

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Yellowstone Magma

Yellowstone Park located primarily in the U.S. state of Wyoming ( though it also extends into Montana and Idaho) is  a dormant  volcano  full of fuming vents and hot geysers. A plume of molten rock rising from deep beneath Yellowstone … Continue reading

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Oceanic Volcanos

Though unseen the ocean floor is a volcanic hot bed where the tectonic plates collide and spread apart. New research reveals that when two parts of the Earth’s crust break apart, this does not always cause massive volcanic eruptions. The … Continue reading

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Why Ring of Fire Exists?

The Pacific Ring of Fire is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 25,000 mile horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and … Continue reading

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Sinabung erupts in Sumatra

Mount Sinabung volcano on Sumatra erupted shortly after midnight local time on 29 August 2010, producing lava and throwing ash 1500 metres above the summit. Local inhabitants fleeing their homes have spoken of ’thick black smoke, small stones and sulphur’ … Continue reading

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Tectonic Plates and Convection Currents

Plates and Types of Crust The earth’s crust is divided up into a series of slabs of crusts known as plates. These plates consist of two different types of crust: continental crust and oceanic crust. There are important differences between … Continue reading

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Images of Eath Distorted by Earthquakes

Earthquakes are often imagined as opening up large gaps in the land, sinking islands and the such. It is much harder in real life to see this change. NASA has recently released the first ever airborne radar images of the … Continue reading

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Ecuador, Guatamala Volcanoes Blow

Thousands of people were evacuated and airports were closed as Ecuador’s Tungurahua volcano and the Pacaya volcano in Guatemala erupted late on Friday. The eruptions choked major cities with ash and left two dead, officials said. Guatemalan President Alvaro Colom … Continue reading

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Amazing Image of Icelandic Volcano Ash

The ash-cloud image, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite shows a thick plume of ash blowing east and then south from the Eyjafjallajökull volcano. Clouds bracket the edges of the scene, but the dark … Continue reading

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Volcano disrupts African rose exports

Kenyan flower farmers are forced  to throw  tons  exquisite roses into  compost pits after flights headed for Europe were canceled because of the ash cloud.Kenyan horticulture industry has already lost $12 million to the European airspace closure and it will … Continue reading

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Dropstones

Dropstones are isolated fragments of rock found within finer-grained water-deposited sedimentary rocks. They range in size from small pebbles to boulders. The critical distinguishing feature is that there is evidence that they were not transported by normal water currents, but … Continue reading

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Hawaiian Hot Spot

For geologists Hawai has long been a puzzle. Plate tectonic theory readily explains the existence of volcanoes at boundaries where plates split apart or collide, but mid-plate volcanoes such as those that built the Hawaiian island chain have been harder … Continue reading

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Volcano Photo Reveals Shock Wave

Amazing new picture from space reveals a volcanic eruption in its earliest stage, with a huge plume of ash and steam billowing skyward and creating a shock wave in the atmosphere.The new photo was taken June 12 from the International … Continue reading

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Ancient Volcanic Eruptions Caused Global Mass Extinction

A previously unknown giant volcanic eruption that led to global mass extinction 260 million years ago has been uncovered by scientists at the University of Leeds.A previously unknown giant volcanic eruption that led to global mass extinction 260 million years … Continue reading

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Ring of Fire

The Pacific Ring of Fire is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 40,000 km horseshoe shape, it is associated with a nearly continuous series of oceanic … Continue reading

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Volcanic Landscapes

Calderas Caldearas are more or less circular depressions surrounded by steep cliffs. Calderas form when a magma chamber spews out its magma, and the mountain above it collapses. Shield volcanoes are born from multiple vents that emit flowing (not exploding) … Continue reading

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Erupting Undersea Volcano Near Island Of Guam Supports Unique Ecosystem

Scientists who have just returned from an expedition to an erupting undersea volcano near the Island of Guam report that the volcano appears to be continuously active, has grown considerably in size during the past three years, and its activity … Continue reading

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Volcanoes Erupt in Japan and Russia, Spreading Ash

Two volcanoes in Japan and another in eastern Russia erupted overnight, spreading ash as far as the Philippines and Vietnam, the Japan Meteorological Agency said on its Web site. Seven minor eruptions occurred at Mount Sakurajima on Japan’s southern island … Continue reading

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Scientist see holes in glacier at Alaska volcano

ANCHORAGE, Alaska – Geologists monitoring Mount Redoubt for signs of a possible eruption noticed that a hole in the glacier clinging to the north side of the volcano had doubled in size overnight — and now spans the length of … Continue reading

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Chaiten volcano in Chile still poses danger

File image shows members of Chilean armed forces watching the smoke rising from Chaiten volcano at Chaiten town, located some 1220 km (760 miles) south of Santiago May 4, 2008. Chile’s government said    the area surrounding the Chaiten Volcano, … Continue reading

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Volcanic Activity at Llaima, Chile

SERNAGEOMIN reported that although observations of Llaima were inhibited by cloud cover on 2 July, incandescence from the 1-km-long lava flow on the W flank was observed. An overflight revealed cooled blocks at the end of the lava flow and … Continue reading

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Volcanoes and Global Cooling

Volcanic eruptions are thought to be responsible for the global cooling that has been observed for a few years after a major eruption. The amount and global extent of the cooling depend on the force of the eruption and, possibly, … Continue reading

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Volcanoes Beneath the Polar Ice

Despite centuries of exploration, the oceans continue to yield many surprises. In the last few years, for example, scientists have found that a long ridge beneath the north polar ice cap is dotted with volcanoes, and with vents of superheated … Continue reading

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Distribution of volcanic activity

Volcanic activity is widespread over the earth, but tends to be concentrated in specific locations. Volcanoes are most likely to occur along the margins of tectonic plates, especially in subduction zones where oceanic plates dive under continental plates. As the … Continue reading

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Lessons from St. Helens:Science of Prediction of Volcanoes

When earthquakes started jolting Mount St. Helens in March, 1980, little infrastructure was available to monitor the mountain or warn of an eruption. As the quakes continued, scientists scavenged seismographs and surveying equipment to take the mountain’s pulse. Their agenda … Continue reading

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Volcanic Landforms,Volcanoes and Plate Tectonics

Volcanic Landforms Volcanic landforms are controlled by the geological processes that form them and act on them after they have formed. Thus, a given volcanic landform will be characteristic of the types of material it is made of, which in … Continue reading

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Volcanic Gases and Their Effects

Sulfur dioxide gas creates air pollution in Hawai’i Volcanic gases are the driving force of eruptions Magma contains dissolved gases that are released into the atmosphere during eruptions. Gases are also released from magma that either remains below ground (for … Continue reading

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Rain clouds volcanic activity

Image of a raindrop Visitors to Hawai`i from northern climates arrive with dreams of sunny beaches and gentle breezes. But this winter, rains of biblical proportions caused flooding, landslides, sewage spills, beach and park closures, and a catastrophic dam failure … Continue reading

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Pyroclastic Flows and Their Effects

Mayon Volcano, Philippines What are pyroclastic flows? Pyroclastic flows are high-density mixtures of hot, dry rock fragments and hot gases that move away from the vent that erupted them at high speeds. They may result from the explosive eruption of … Continue reading

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VOLCANOES

Reciting Salawath on our Prophet Muhammad (peace be upon him) is an activity that will be accepted by Allah, even if we don’t have Ikhlas (piety)”. Volcano A volcano is an opening, or rupture, in a planet’s surface or crust, … Continue reading

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Lava Flows and Their Effects

Fluid basalt lava flow, Mauna Loa, Hawai`i What are Lava Flows? Lava flows are streams of molten rock that pour or ooze from an erupting vent. Lava is erupted during either nonexplosive activity or explosive lava fountains. Lava flows destroy … Continue reading

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VOLCANO TYPES

GENERIC FEATURES A volcanic vent is an opening exposed on the earth’s surface where volcanic material is emitted. All volcanoes contain a central vent underlying the summit crater of the volcano. The volcano’s cone-shaped structure, or edifice, is built by … Continue reading

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