What is a sentence for metamorphic?
Metamorphic sentence example. The central plateau consists almost entirely of metamorphic rocks with extensive tracts of granite in Unyamwezi. In many deposits of iron ores found in connexion with igneous or metamorphic rocks small quantities of phosphate occur.
What is gneissic banding?
The minerals in gneiss are arranged into layers that appear as bands in cross section. This is called gneissic banding. The darker bands have relatively more mafic minerals (those containing more magnesium and iron).
How is gneiss formed?
Gneiss is a metamorphic rock formed by changing schist, granite, or volcanic rocks through intense heat and pressure. Gneiss is foliated, which means that it has layers of lighter and darker minerals. These layers are of different densities and come about as a result of the intense pressure used to form gneiss.
How do you use mineral in a sentence?
composed of matter other than plant or animal.
- She bent down and picked up a mineral.
- The country possesses rich mineral deposits.
- Mineral oils are used to lubricate machinery.
- Diamonds are the hardest known mineral.
- The country’s strong economy was built on its mineral wealth.
What’s an example of metamorphic rock?
Common metamorphic rocks include phyllite, schist, gneiss, quartzite and marble.
What causes gneissic banding?
The banding is usually due to the presence of differing proportions of minerals in the various bands; dark and light bands may alternate because of the separation of mafic (dark) and felsic (light) minerals. Banding can also be caused by differing grain sizes of the same minerals.
What is uses of gneiss?
Ornamental Stone Metamorphic Gneiss has many uses as a building material such as flooring, ornamental stones, gravestones, facing stones on buildings and work surfaces.
What type of rock is pumice?
Pumice is pyroclastic igneous rock that was almost completely liquid at the moment of effusion and was so rapidly cooled that there was no time for it to crystallize. When it solidified, the vapours dissolved in it were suddenly released, the whole mass swelling up into a froth that immediately consolidated.
How do you use gneiss in a sentence?
Examples of gneiss in a Sentence. Recent Examples on the Web The near-seamless local bedrock, a type of rock called gneiss, is geologically stable and keeps water out. — Andrew Curry, The Atlantic, “What Lies Beneath,” 11 Sep. 2017 The gneiss was also used to create the low stone walls that bring definition to the estate’s exterior walkways.
What is a complex sentence?
Complex sentences are one of the four basic types of sentences in the English language. Complex sentences require at least three parts: In writing, entire ideas expressed using a noun and verb (a subject and predicate) create independent clauses. Independent clauses can be complete sentences on their own.
What are subordinating conjunctions in a complex sentence?
A complex sentence uses subordinating conjunctions to join an independent clause with a dependent clause. Many subordinating conjunctions serve to signal the dependent clause to be less important than the independent clause. Subordinating clauses can operate as nouns, adjectives, or adverbs to signal the dependent clause’s start.
What are some well-crafted complex sentences from literature?
Here are some well-crafted complex sentences from literature. The independent clauses are underlined. If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. – Walden, Henry David Thoreau