Skip to main content
folium

folium

9.9
A thin layer within rocks changed by heat and pressure
  • noun
  • /ˈfoʊliəm/
  • Specialized
translation icon : folio
  • Geologists examined the folium to understand the region's metamorphic history.

Examples

  • Thin folia within the schist were clearly visible under the microscope.

  • The geologist examined a folium of schist.

  • Each folium contributed to the overall structure of the layered rock formation.

  • Each folium in the rock sample was distinct.

  • Geologists often study the folium in metamorphic rocks to identify their formation process.

  • The shiny folium found in the sample revealed important information about the rock's history.

  • During their research, they discovered that each folium represented different geological conditions.

Synonyms

stratum
vsfolium
  • Specialized
1 8.1

A layer of material among other layers, for example in rock or soil

is a thinner layer used for metamorphic rock contexts

Surface Forms

folium singular
folia plural

Etymology

Folium comes from the Latin folium, which means 'leaf', and the same root appears in English words like foliage and folio. Geologists call a thin layer of rock a folium because it looks like a flat 'leaf' or thin sheet inside the stone.