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How to use igneous in a sentence

Looking for sentences and phrases with the word igneous? Here are some examples.

Sentence Examples
She introduces cross-hatching as an internal element in wheeling and receding shapes that recall igneous rocks scored with veins of quartz.
The mineralogical and textural alteration in the country rocks resulting from this heating by igneous bodies is called contact metamorphism.
Large tuff-filled clastic dykes invade volcaniclastic deposits associated with the Ferrar large igneous province.
The occurrence of these felsic extrusive igneous rocks potentially provides key information on the complex interplay of magmatism and tectonics.
Major crustal rifting has also played a part in the evolution of large bodies of Proterozoic sedimentary and igneous rocks.
Volcanic rocks of enormous thickness and deep-seated igneous intrusions from this period have created much of the geology of the Peruvian Andes.
During the past 250 million years, there have been 29 massive lava outpourings around the world, called large igneous provinces.
This transition coincides with an upsection increase in megaturbidite beds and increasing abundance of trace amounts of mafic igneous detritus.
While still on the parent body, much of the achondritic material was formed by igneous processes similar to those occurring on Earth today.
The igneous complex is composed of four steep-walled plutons separated by country rock septa and surrounded by a zone of small stocks and veins.
It has also been found in silica-poor igneous rocks, such as syenite, nepheline syenite, serpentinite, and lamprophyre.
The lava flow managed to spill over the cooled igneous rock but what little did was diverted away from the town.
The layering in these ultramafic rocks, and their position above mantle tectonites, is attributed to lower crustal igneous processes.
The crest of the Blue Ridge is usually underlain with Precambrian or Cambrian igneous rocks.
Conversely, there is during this time interval a general scarcity of erupted igneous rocks that can be reliably tied into relative stratigraphy.
Detrital quartz from an igneous source is usually substantially brighter in luminescence than quartz of an authigenic origin.
The three mountainous areas consist of large cores of igneous rocks surrounded by larger areas of metamorphic rocks, mostly schists and gneiss.
They were primarily studying the igneous rocks in the region but still managed to bag a few good fossils.
A Maori warrior made his mere of greenstone, an igneous rock, and ground one side to a sharp edge.
Mafic dike suites within Mesozoic igneous provinces of New England and Atlantic Canada.
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Examples from Classical Literature
Thus, igneous rocks distinctly predominate in the Archeozoic, while stratified rocks predominate in the Proterozoic.
Traces of it are found in practically all igneous and most sedimentary rocks.
Sapphire, ruby, emerald, and tourmaline result also from contact metamorphism of sediments in the vicinity of igneous rocks.
For instance, an igneous rock may become a schist without going through the intermediate stage of sedimentation.
Occasionally we meet with igneous rocks which are more or less vesicular and amygdaloidal throughout their entire mass.
Crystals are found as a rarity in the amygdaloidal cavities of igneous rocks.
In other words, anamorphism tends toward the reproduction of igneous rocks, though it seldom fully accomplishes this result.
How may granite be at one and the same time a metamorphic and igneous rock?
The beacons were found to be part of a horizontal, stratified series of sandstones underlying the igneous rock.
Should hard limestone or igneous rock be met with, the rate of progress may be less than half the above general average.
The strata are bent down towards the central plug of igneous rock, and are generally more or less altered at the line of junction.
Sheets of igneous rock are interbedded with the strata and many dikes of igneous rocks cut through the whole combination.
About five per cent of the world's production of iron ore is from bodies of magnetite formed in association with igneous rocks.
The igneous rocks will be described under the various groups of Granitic, trappean, and Volcanic.
It is a metamorphic rock derived from either sedimentary or igneous rock, more commonly the former.
The unstratified class are all colored red, to indicate their igneous origin.
Chromite is a common minor constituent of basic igneous rocks of the peridotite and pyroxenite type.
The finished implements found were two axes, of a plagioclase igneous rock, and three arrow points, all of quartzite.
Of course, plateaux of accumulation are not always formed of igneous rocks.
The ranges were composed of a psammite, which was frequently baked, probably by neighbouring out-bursts of igneous rock.
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