Sentences with phrase «volcanic material in»

«That's an awful lot of volcanic material in one place for such a little planet,» Zuber said.

Not exact matches

Other sources of salts include the solid and gaseous materials that escaped from the Earth's crust through volcanic vents or that originated in the atmosphere.

Zipkin contrasts working with specular hematite — a heavy, glittery rock that's deep purple - red and has a high iron content — with material much lighter in both color and iron content from Kenya's volcanic Rift Valley: «They're both ochre, but elementally and chemically they are radically different.»

But researchers can not yet explain some of the features etched in that volcanic material: a spoke - like pattern of troughs and ridges emanating from the centre of the basin.

Scientists are now watching to see whether the volcano repeats the violent eruptions of 1963, when superheated gases and volcanic material raced down the mountain in a series of pyroclastic flows, killing more than 1000 people.

The raw volcanic material of central Idaho lies over the slopes in haphazard heaps.

Dr Simon Blockley and Dr Alison MacLeod, from the Department of Geography at Royal Holloway, analysed volcanic material that preserved the archaeological site in the village of Nor Geghi, in the Kotayk Province of Armenia.

In that sense, the researchers say, the moon is unique: Its craters are constantly erased by the solar system's most relentless volcanic activity — 25 times more frequent than that seen on Earth — which adds an estimated 1 centimeter of fresh material to Io's surface each year.

The material, they believe, was recycled as older volcanic rocks forming the roofs of magma chambers collapsed and remelted during eruptions, only to be reejected in the next volcanic outburst.

Pore spaces that shelter subsurface microbes areconstricted to the vanishing point in metamorphic rocks buried over eons byfurther sedimentation, volcanic eruptions, or massive folding of Earth's crust.And dense crystalline material formed by melting — basic igneous rock — offerslittle housing or dining.

Volcanic eruptions in Iceland in 2010 and 2011 are also important sources of material, they say.

Their claim was especially surprising because EETA 79001, like all Martian meteorites, is a volcanic rock, in which you wouldn't expect to find sedimentary material.

A group of former and current Arizona State University researchers say chemical differences found between rocks samples at volcanic hotspots around the world can be explained by a model of mantle dynamics that involves plumes, upwellings of abnormally hot rock within the Earth's mantle, that originate in the lower mantle and physically interact with chemically distinct piles of material.

New Zealand scientists mapped the Havre volcano, a caldera nearly three miles (4.5 kilometers) across on the seafloor northeast of the North Island of New Zealand, using shipboard sonar instruments in 2002 and again immediately after the eruption in 2012, revealing the presence of new volcanic material on the seafloor.

In particular, eruptions such the Timanfaya's in Lanzarote ─ one of the strongest in the country due its duration until 1736 and the amount of thrown material ─ and Tambora's ─ one of the biggest volcanic episodes, which led to a «year without summer» in 1816 ─ released big amounts of iron that altered the chemical composition of the annual Pyrenean tree ringIn particular, eruptions such the Timanfaya's in Lanzarote ─ one of the strongest in the country due its duration until 1736 and the amount of thrown material ─ and Tambora's ─ one of the biggest volcanic episodes, which led to a «year without summer» in 1816 ─ released big amounts of iron that altered the chemical composition of the annual Pyrenean tree ringin Lanzarote ─ one of the strongest in the country due its duration until 1736 and the amount of thrown material ─ and Tambora's ─ one of the biggest volcanic episodes, which led to a «year without summer» in 1816 ─ released big amounts of iron that altered the chemical composition of the annual Pyrenean tree ringin the country due its duration until 1736 and the amount of thrown material ─ and Tambora's ─ one of the biggest volcanic episodes, which led to a «year without summer» in 1816 ─ released big amounts of iron that altered the chemical composition of the annual Pyrenean tree ringin 1816 ─ released big amounts of iron that altered the chemical composition of the annual Pyrenean tree rings.

Brought to Earth's surface in eruptions of deep volcanic material, these rocks hold clues as to what is going on deep beneath Earth's surface.

However, they add, testing has affected both the limestone and the underlying volcanic rock in a way which is likely to increase «the longer - term potential for leakage of radioactive material».

Lepre said a layer of volcanic ash below the tool site set a «floor» on the site's age: It matched ash elsewhere that had been dated to about 3.3 million years ago, based on the ratio of argon isotopes in the material.

Recent studies have revealed volatile material embedded in lunar volcanic glass collected by Apollo astronauts.

Recent inspection of the sulfate records from the European project for ice coring in Antarctica's dronning maud land (EDML) ice core reveals sulfate peaks that have been correlated to presumed YTT sulfate peaks in the North Greenland ice core project (NGRIP) and GISP2 ice cores; however, once again no volcanic material has been identified (18).

An exceptional sulfate spike in the Greenland Ice Sheet Project Two (GISP2) ice core record, of 6 y duration, has been correlated to the YTT (16) despite an absence of volcanic material.

Lead author of the study Dr Tom Gernon, Lecturer in Earth Science at the University of Southampton, said: «When volcanic material is deposited in the oceans it undergoes very rapid and profound chemical alteration that impacts the biogeochemistry of the oceans.

In the spring 2017 issue, meet the people who work round the clock at Argonne's giant synchrotron, using X-rays to tease out the secrets of everything from volcanic glass to batteries to bacterial machinery — as well as engineers who travel the world to make reactors safer, physicists who collect model ships, and scientists inventing materials for the next technology breakthroughs.

The widespread volcanic material suggests the presence of water - formed clay which can reduce friction — an effect seen on Earth at volcanoes in Hawaii.

But an ideal landing site, Moriarty says, might be a spot that has both mantle and volcanic material, because those volcanics are interesting in their own right.

Moriarty and Pieters found several such craters in the volcanic patch where the pyroxene material has been re-excavated.

Specifically, ESS2.A: Earth Materials and Systems: How the earth's systems interact in multiple ways to affect Earth's surface materials and processes — glaciers, volcanic activity and fault block mMaterials and Systems: How the earth's systems interact in multiple ways to affect Earth's surface materials and processes — glaciers, volcanic activity and fault block mmaterials and processes — glaciers, volcanic activity and fault block mountains.

Most facilities in Casa Chameleon are made from natural materials like bamboo and volcanic rocks, which gives the place an exotic feel.

Against a backdrop of volcanic mountains, gaunt hills and withered scrub trees, this lodge blends in perfectly with the natural environment, using native materials and surrounded by lush gardens.

It has over 1000 miles of coastline with a variety of beach materials ranging from white sand on the Caribbean beaches to the darker materials which are volcanic in origin on the Pacific beaches.

In 2016, Mutu opened a second studio in Nairobi, and this return to her «alien mother,» as the artist has referred to it, has catalyzed a transformation in her work.4 Fresh materials and methods referencing the Kenyan landscape — such as the distinctive rust - colored clay of Nairobi's volcanic soil and a dark, coal - like paper pulp — evidence a shift in the artist's focus from primarily two - dimensional works to the earthy, the organic, and the spiritual, with an emphasis on three - dimensional forms and performance - based installations, as well as the playful and imaginative opportunities of video animatioIn 2016, Mutu opened a second studio in Nairobi, and this return to her «alien mother,» as the artist has referred to it, has catalyzed a transformation in her work.4 Fresh materials and methods referencing the Kenyan landscape — such as the distinctive rust - colored clay of Nairobi's volcanic soil and a dark, coal - like paper pulp — evidence a shift in the artist's focus from primarily two - dimensional works to the earthy, the organic, and the spiritual, with an emphasis on three - dimensional forms and performance - based installations, as well as the playful and imaginative opportunities of video animatioin Nairobi, and this return to her «alien mother,» as the artist has referred to it, has catalyzed a transformation in her work.4 Fresh materials and methods referencing the Kenyan landscape — such as the distinctive rust - colored clay of Nairobi's volcanic soil and a dark, coal - like paper pulp — evidence a shift in the artist's focus from primarily two - dimensional works to the earthy, the organic, and the spiritual, with an emphasis on three - dimensional forms and performance - based installations, as well as the playful and imaginative opportunities of video animatioin her work.4 Fresh materials and methods referencing the Kenyan landscape — such as the distinctive rust - colored clay of Nairobi's volcanic soil and a dark, coal - like paper pulp — evidence a shift in the artist's focus from primarily two - dimensional works to the earthy, the organic, and the spiritual, with an emphasis on three - dimensional forms and performance - based installations, as well as the playful and imaginative opportunities of video animatioin the artist's focus from primarily two - dimensional works to the earthy, the organic, and the spiritual, with an emphasis on three - dimensional forms and performance - based installations, as well as the playful and imaginative opportunities of video animation.

In addition to clay and layers of glaze, Regel also uses volcanic rock materials, basalt, granite, and feldspars to form the main body of her pieces, resulting in visually complex surfaces and textureIn addition to clay and layers of glaze, Regel also uses volcanic rock materials, basalt, granite, and feldspars to form the main body of her pieces, resulting in visually complex surfaces and texturein visually complex surfaces and textures.

For $ 10 billion per year we can keep the earth cool for decades in the same way that volcanic eruptions do — by putting sunlight - blocking material in the stratosphere.

A climate scientist with impeccable credentials claims that we can safely keep the earth cool for many decades in the same way that volcanic eruptions do — by putting sunlight - blocking material in the stratosphere.

The two spikes around 1983 and 1993 were a consequence of volcanic eruptions injecting material into the stratosphere resulting in short term warming of the lower stratosphere.

A number of different volcanic reconstructions are included in the modelling studies described in Section 9.4.1.2 (e.g., Sato et al., 1993; Andronova et al., 1999; Ammann et al., 2003; Supplementary Material, Table S9.1).

This played an important role as the injection of volcanic material was so large in the Toba eruption that some chemical processes saturated, leading to a longer presence of sulfur - containing particles in the stratosphere.

«The ice - rafted material in the Bunyeroo Formation only has been found510 m stratigraphically below and above a horizon of dacitic ejecta related to the 90 km diameter Acraman impact structure in the Mesoproterozoic Gawler Range Volcanics 300 km to the west.

Ships travelling north from Britain to buy sheep would carry cargoes of corrugated iron to sell in Reykjavik, where it quickly became clear that the material was well suited to the isolated volcanic island with limited local construction materials.

I'm not interested in where you ski, but that it seems you're saying volcanic activity and hot material reaching the earth's crust have no effect on temperature or climate.