Definición de hornfels en inglés:

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hornfels

Pronunciación: /ˈhɔːnfɛlz/

sustantivo

[mass noun]
A dark, fine-grained metamorphic rock consisting largely of quartz, mica, and particular feldspars.
Oraciones de ejemplo
  • The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist.
  • As a result, contact metamorphic minerals grow in random interlocking patterns giving rise to hornfels, a tough rock with no direction along which it will split preferentially.
  • These are actually pseudomorphs of sericite (a fine-grained white mica) after cordierite and are found included in hornfels or slate as a product of contact metamorphism.

Origen

Mid 19th century: from German, literally 'horn rock'.

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