Oaxacan Complex of Mexico

E803327

The Oaxacan Complex of Mexico is an ancient Precambrian crystalline basement terrane composed mainly of high-grade metamorphic and igneous rocks that record some of the oldest geological events in southern Mexico.

All labels observed (1)

Label Occurrences
Oaxacan Complex of Mexico canonical 1

How this entity was disambiguated

Statements (42)

Predicate Object
instanceOf Precambrian terrane ⓘ
crystalline basement terrane ⓘ
ageEstimate Paleoproterozoic to Mesoproterozoic ⓘ
associatedWith Grenvillian orogeny ⓘ
linked to: Grenville orogeny

Pan-African–Brasiliano orogenic cycle ⓘ
linked to: Pan-African orogeny
chronologyMethod U-Pb zircon geochronology ⓘ
contains mafic intrusive bodies ⓘ
orthogneiss ⓘ
paragneiss ⓘ
country Mexico ⓘ
deformationStyle polyphase ductile deformation ⓘ
exposedIn Oaxaca region ⓘ
Sierra Madre del Sur ⓘ
geologicalAge Precambrian ⓘ
lithology high-grade metamorphic rocks ⓘ
igneous rocks ⓘ
locatedIn southern Mexico ⓘ
state of Oaxaca ⓘ
linked to: State of Oaxaca
metamorphicGrade amphibolite facies ⓘ
granulite facies ⓘ
metamorphicHistory polymetamorphic ⓘ
overlainBy Cenozoic volcanic rocks ⓘ
Mesozoic sedimentary rocks ⓘ
Paleozoic sedimentary rocks ⓘ
partOf Oaxaquia microcontinent ⓘ
basement of the Sierra Madre del Sur ⓘ
records ancient magmatic events ⓘ
early crustal evolution of southern Mexico ⓘ
high-grade metamorphism ⓘ
researchField Precambrian geology ⓘ
tectonics of Mexico ⓘ
rockType gneiss ⓘ
granitoid ⓘ
granulite ⓘ
migmatite ⓘ
significance contains some of the oldest rocks known in Mexico ⓘ
key to reconstruction of pre-Mesozoic history of southern Mexico ⓘ
structuralPosition cratonic basement beneath younger cover sequences ⓘ
studiedBy geologists ⓘ
tectonicImportance records assembly of Oaxaquia and adjacent terranes ⓘ
tectonicSetting basement complex ⓘ
tectonicUnitType basement terrane ⓘ

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Grenville orogeny → preservedIn → Oaxacan Complex of Mexico ⓘ