Barrovian metamorphic zones
E744753
Barrovian metamorphic zones are a classic sequence of regional metamorphic grade zones in pelitic rocks, widely used as a model for understanding progressive metamorphism in orogenic belts.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
metamorphic zonation model
ⓘ
regional metamorphism concept ⓘ |
| appliesTo |
orogenic belts
ⓘ
pelitic rocks ⓘ |
| associatedWith |
medium pressure metamorphism
ⓘ
medium temperature metamorphism ⓘ |
| assumes |
compositionally similar pelitic protoliths
ⓘ
equilibrium mineral assemblages ⓘ |
| basedOn | index minerals ⓘ |
| canonicalExample | classic Scottish Barrovian sequence ⓘ |
| characterizes | progressive regional metamorphism ⓘ |
| contrastedWith | Buchan metamorphic zones NERFINISHED ⓘ |
| contrastsWith |
high-pressure blueschist facies metamorphism
ⓘ
low-pressure Buchan-type metamorphism ⓘ |
| developedFrom | field mapping of index minerals ⓘ |
| developedIn | Scottish Highlands NERFINISHED ⓘ |
| documentedIn | metamorphic petrology textbooks ⓘ |
| field |
geology
ⓘ
metamorphic petrology ⓘ |
| formsPartOf | classical metamorphic zonation schemes ⓘ |
| hasZone |
biotite zone
ⓘ
chlorite zone ⓘ garnet zone ⓘ kyanite zone ⓘ sillimanite zone ⓘ staurolite zone ⓘ |
| helpsConstrain |
depth of metamorphism
ⓘ
thermal structure of orogenic belts ⓘ timing of metamorphic events ⓘ |
| indexMineralSequence | chlorite to biotite to garnet to staurolite to kyanite to sillimanite ⓘ |
| influenced | classification of regional metamorphism ⓘ |
| namedAfter | George Barrow NERFINISHED ⓘ |
| relatedConcept |
metamorphic facies
ⓘ
metamorphic isograds ⓘ pressure–temperature paths ⓘ |
| represents | increasing metamorphic grade sequence ⓘ |
| requires | mineralogical mapping across regional transects ⓘ |
| timePeriod | early 20th century ⓘ |
| typicalRockType | metapelite ⓘ |
| typicalTectonicSetting | collisional orogen GENERATED ⓘ |
| usedBy |
metamorphic petrologists
ⓘ
structural geologists ⓘ |
| usedFor |
interpreting pressure–temperature conditions
ⓘ
mapping metamorphic grade ⓘ reconstructing metamorphic field gradients ⓘ teaching progressive metamorphism ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.