| 1. | All these minerals were altered during the greenschist facies retromorphism.
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| 2. | The slates are highly cleaved and metamorphosed as high as lower greenschist facies.
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| 3. | They consist of interlayered sedimentary and volcanic flow rocks metamorphosed to low greenschist facies.
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| 4. | In greater detail the greenschist facies is subdivided into subgreenschist, lower and upper greenschist.
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| 5. | The greenstone belts of the various archean cratons are commonly altered to the greenschist facies.
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| 6. | These rocks therefore underwent chlorite ( chloritization ) indicating retrograde metamorphism under greenschist facies conditions.
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| 7. | The chloritization of the biotite is a clear sign for retrograde metamorphic overprinting under greenschist facies conditions.
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| 8. | The ophiolites of the Zermatt-Saas zone are mostly ultramafic rocks with greenschist facies mineralogy : serpentinites.
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| 9. | Regional metamorphism has converted the shale to a low greenschist facies, where clay is converted to chlorite.
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| 10. | The sedimentary rocks that were laid down in the basin are often weakly metamorphic ( greenschist facies ).
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