The European geological and petrogaphic literature employs certain term that have no founf elsewhere. In French, German and Italian literature, for exemple, the petrographic term "Prasinite" is commonly udes when dealing with the ophiolite, or to be more precise, their metamorphic products.
The meaning of the term Prasinite is generally agreed: it is a basaltic matamorphic rock usually consisting of ocellar albite, surrounded by a green matrix composed of almost equal amounts of actinolite, chlorite and epidote.
Green prasinite sample.
Green prasinites outcrop.
Green prasinites outcrop.
• Leardi, L., Rossetti, P., & Crisci, G. M. (1986). Greenschist altered metabasalts (ovardite) from Torre d’Ovarda (Val d'Ala, Graian Alps). Ofioliti, 11(3), 263-274.
Photo
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray) surrounded by a matrix composed of chlorite (I order braown) and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 2x (Field of view = 7mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (colorless, with small actinolite inclusions) surrounded by a green matrix composed of chlorite (pale green) and epidote (dark), Montgenèvre, France. PPL image, 10x (Field of view = 2mm) |
Albite Porphyroblast (I order gray, with small actinolite inclusions) surrounded by a matrix composed of chlorite and epidote, Montgenèvre, France. XPL image, 10x (Field of view = 2mm) |