How To Use Volcanism In A Sentence
-
Formed the idea of uniformitarianism stating current geologic processes, such as volcanism and erosion, have been at work throughout Earth's history.
Recently Uploaded Slideshows
-
He concluded that discontinuity patterns resulted from ecological and geological barriers at high elevations, attributable mostly to the effects of glaciation and volcanism.
-
Most of the mountains are clastic stratovolcanic sediments (ashes and tuff), and the abundant solfataras and fumaroles, many of which are still active, are the last phases of the volcanism.
-
There was volcanism in the area - gases warming the lake and frequent earthquakes.
VITALS
-
Pengxian deposit and the Masongling Formationformation are products of island arc volcanism in convergent plate boundary.
-
One very obvious form is the volcanism of island arcs and continental-margin orogens associated with plate convergence.
-
This appears to contradict evidence from other areas, particularly Wales where subduction-related volcanism occurs in the late Tremadoc.
-
Additional natural factors that could contribute to a different degree to pedogenesis are spontaneous fires, earthquakes, tsunami, volcanism, and impacts of meteorites.
Soil forming factors
-
And volcanism probably had a significant influence on sea level before 1850.
-
The volume, distribution and lithology of this volcanism, however, shows considerable differences between the two areas.
-
Flash heat, volcanism, lightning, wind, and waves all renew the material world.
-
Active volcanism at any one time is normally confined to a limited number of centres within a particular cluster.
-
Note we are not necessarily talking about active volcanism either in the sense of fumarolic activity, eruption etc. but just high heat flows.
Four Hunnnnnn-dred Years « Climate Audit
-
Small amounts of realgar have been reported from a large number of European occurrences, generally related to relatively recent volcanism, limestone or dolomite quarries, or base- and precious-metal deposits.
-
We know that volcanism was concentrated in the northern sector of the island and produced small monogenetic strombolian cones (eruptions that are not very violent and which release lava and pyroclastic flows) and, occasionally, phreatomagmatic calderas (which release ash), Alejandro Rodríguez-González, lead author of the study and a researcher at the ULPGC, tells SINC.
Latest Articles
-
Most of the mountains are clastic stratovolcanic sediments (ashes and tuff), and the abundant solfataras and fumaroles, many of which are still active, are the last phases of the volcanism.
-
The divergent junction is characterized by earthquake activity and volcanism.
-
It's possible that the explosive impact created by a comet collision triggers increased volcanism; there is evidence in India and Siberia of massive lava flows coincident with other extinction events.
-
The Nazca Plate, which underlies the eastern Pacific Ocean, slides under western South America, resulting in crustal thickening, uplift and volcanism.
-
This volcanism seemingly developed in an extensional setting near a shelf margin located in the eastern Neptune Range.
-
One very obvious form is the volcanism of island arcs and continental-margin orogens associated with plate convergence.
-
Both kinds of plate boundary are associated with fault systems, earthquakes and volcanism.
-
The onset of volcanism in the region occurred in late Ordovician times, with the earliest eruptions associated with the Eycott and Borrowdale volcanic groups.
-
Shaped both by volcanism and glaciers, Mt. Hood is part of the Cascade Range, a belt of volcanoes running through the Pacific Northwest.
-
Orogeny and volcanism had generally been held to be associated with the contraction of the Earth, but the continents and oceans were regarded as primordial features, fixed in their positions since the crust first formed.
-
The large volumes of lava erupted in the main phase of flood basalt volcanism seem to have overwhelmed any hydromagmatic influence.
-
If active volcanism were responsible then it would be a major discovery with important implications.
-
A consideration of Rheic margin tectonics reveals several possible source terranes for silicic explosive volcanism.
-
Influx of trachytic volcanic rock fragments in the Albian may derive from inlra-platc volcanism related to extension.
-
The radiometric age data combined with the petrography of the volcanics thus indicate two separate events of volcanism in the Danish North Sea.
-
Lassen Peak, some wise men believe, is the last exhibit of activity in the dying volcanism of the Cascade Mountains.
The Book of the National Parks
-
Geologically young, the Rockies exhibit faulting, glaciation, and volcanism, resulting in rugged, spectacularly scenic terrain.
-
The northern part of the shield is truncated by a 10 km wide embayment, open to the north and filled by postshield volcanism.
-
Overthrusting, volcanism, and plutonic igneous intrusion were identified as originating above the subduction zone where one plate is forced beneath the edge of its neighbour.
-
The spatial and chronological evolution of the Canary Islands' volcanism is due to eastward progression of the slow-moving African plate over a mantle plume.
-
The depositional facies are consistent with penecontemporaneous, explosive volcanism.
-
The basin formation was associated with contemporaneous acid volcanism.
-
The researchers have considered whether volcanism or salt diapirism (a process where evaporite minerals intrude vertically into surrounding rock, forming dome-like structures on the surface) could be responsible for the annulus.
BBC News | News Front Page | World Edition
-
One very obvious form is the volcanism of island arcs and continental-margin orogens associated with plate convergence.
-
There is also chemical evidence for recent volcanism, namely, the outgassing of elements that would be associated with volcanism.
-
In contrast, oceanic island, oceanic plateau and seamount volcanism is distinctive in composition and eruptive style from the activity at plate margins.
-
It also follows that there are differences in age between grains, which is consistent with the impression of resorption given by the grain morphology: possibly all grains predate the final tuff volcanism.
-
Voluminous quantities of Late Ordovician to Wenlockian felsic pyroclastics and lava flows record the extensive volcanism associated with the collision and deformation.
-
The scattered nature of the outcrop and the possibility of diachronous volcanism mean that all rocks grouped as Dokhan Volcanic Series may not be coeval.
-
An active origin is suggested because volcanism and uplift appear to have preceded rifting, an active plume passing over a large area.
-
The dinosaurs, they say, were killed not by a lone asteroid strike but by the quadruple whammy of global climate change, massive volcanism, and not one but two gigantic collisions.
-
Carboniferous volcanism, occurring at converging plates margins, both at the Appalachian and at the Ouachita margins, was decidedly not tholeiitic.
-
Volcanism can have a large effect on the dating of any particular sample, of course, because when a rock melts it will release the gasses trapped in the rock matrix and therefore restart the atomic clock.
-
The Earth's core is releasing a great deal of energy and it explains the weather patterns, the increase of seismic activity and volcanism.
-
Carboniferous volcanism, occurring at converging plates margins, both at the Appalachian and at the Ouachita margins, was decidedly not tholeiitic.
-
Both events clearly post-date the lower Rotliegend volcanism in the Southern Permian Basin where the volcanics give radiometric ages in the range 288300 Ma.
-
Volcanism in the Pliocene epoch overtopped the existing Miocene volcanics of Ecoregion 4b.
Ecoregions of Oregon (EPA)
-
Because it seemed desirable to conserve the best two of these examples of recent volcanism, President Taft in 1906 created the Lassen Peak and the Cinder Cone National Monuments.
The Book of the National Parks
-
In this paper we describe the physical volcanology of basaltic pyroclastic deposits that were emplaced during the initial stages of Palaeogene flood volcanism in central East Greenland.
-
And even in cases where volcanism has taken place, there are often older chunks of unmelted rock, called xenolithic inclusions, that can be identified within a lava flow and dated accurately.
-
Some magmatic activity is concentrated along basement lineaments and other volcanism appears to be related to rifting in a similar way to that of major rift valleys.
-
Near-continuous volcanism has been occurring for at least the past 30 million years and continues to produce a wide variety of alkaline lavas and other volcanic products.
-
The contribution to the present day atmospheric CO2 loading from volcanic emissions is, however, relatively insignificant, and it has been estimated that subaerial volcanism releases around 300 Mt/yr CO2.
What's the carbon footprint of ... a volcano?
