Table of Contents
What is the name comes from a Greek word meaning to split?
The word comes ultimately from Greek skhizein ‘to split’. From: schism in The Oxford Dictionary of Phrase and Fable »
What metamorphic rock splits easily is called?
Slates are generally fine‐grained, dark‐colored, metamorphosed sedimentary rocks that split easily along slaty foliations and were formed under low‐grade temperature and pressure conditions. Phyllites are slightly more metamorphosed than slates and contain mica crystals that impart a glossy sheen.
What is the Greek meaning of metamorphic rock?
meta
Metamorphic rocks get their name from the Greek words “meta” meaning change, and “morpho” meaning form. The two processes that form metamorphic rocks are chemical recrystallization and mechanical deformation as a result of heat pressure – or both.
What can some metamorphic rock be split into?
Metamorphic rocks are divided into two categories (1) nonfoliated rocks which do not have distinct layering and (2) foliated rocks which are layered or banded coloring rocks formed when shortened along one axis during recrystallization.
Where does the name January comes from?
Roman god Janus
January is named after the Roman god Janus. As you can see in this print, he had two faces so he could see the future and the past! He was also the god of doors. Jacobus Harrewyn (1660/1–1732/40), January from the print series The Months.
Which word is taken from the Greek which means Ergon?
Ergon, concept from Aristotle’s Nicomachean Ethics that is most often translated as function, task, or work.
What are layered metamorphic rocks?
Foliated metamorphic rocks such as gneiss, phyllite, schist and slate have a layered or banded appearance that is produced by exposure to heat and directed pressure. Non-foliated metamorphic rocks such as hornfels, marble, quartzite and novaculite do not have a layered or banded appearance.
What is Greek metamorphism?
The word metamorphism is taken from the Greek for “change of form”; metamorphic rocks are derived from igneous or sedimentary rocks that have altered their form (recrystallized) as a result of changes in their physical environment. …
What does the Greek word meta and Morphe mean?
change
The origins of the word metamorphose lie in the Greek meta, or “change,” and morphe, “form.”
What is Ortho metamorphic rock?
Generally speaking, ortho-amphibolites are metamorphosed mafic igneous rocks, either volcanic (basalts) or plutonic (gabbros). Our theory is, in fact, any rock unit made up chiefly of hornblende, with a subordinate amount of plagioclase, whatever its origin may be, will indicate a basaltic composition.
What are metamorphic rocks give two examples?
Common metamorphic rocks include phyllite, schist, gneiss, quartzite and marble. Foliated Metamorphic Rocks: Some kinds of metamorphic rocks — granite gneiss and biotite schist are two examples — are strongly banded or foliated.