Idaho batholith
E633967
The Idaho batholith is a massive granitic intrusive rock complex in central Idaho that formed during Late Cretaceous magmatism and is one of the largest batholiths in North America.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
batholith
ⓘ
geologic formation ⓘ granitic intrusive complex ⓘ |
| approximateAgeRange | 98–53 million years ago ⓘ |
| boundedBy |
Bitterroot Mountains to the north
ⓘ
Snake River Plain to the south NERFINISHED ⓘ |
| composition | felsic to intermediate ⓘ |
| continent | North America ⓘ |
| coolingHistory | slowly cooled at mid-crustal depths ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| economicSignificance | associated with some mineralization in central Idaho ⓘ |
| emplacementStyle | multiple pluton emplacement ⓘ |
| exposedIn |
Bitterroot Range
NERFINISHED
ⓘ
Salmon River Mountains NERFINISHED ⓘ Sawtooth Range NERFINISHED ⓘ |
| formedDuring | Late Cretaceous NERFINISHED ⓘ |
| geologicAge | Mesozoic NERFINISHED ⓘ |
| geologicSetting | continental arc ⓘ |
| hasSubunit |
Atlanta lobe
ⓘ
Bitterroot lobe NERFINISHED ⓘ Challis intrusive rocks (overlapping younger suite) ⓘ |
| hostTo | Challis volcanic field (nearby and related magmatism) NERFINISHED ⓘ |
| importance |
key feature in studies of Cordilleran magmatism
ⓘ
major control on topography of central Idaho ⓘ |
| intrusiveBodyType | plutonic complex ⓘ |
| largestBatholithRanking | one of the largest batholiths in North America ⓘ |
| lithologyVariation | more mafic margins and more felsic interior ⓘ |
| locatedIn |
Idaho
ⓘ
central Idaho ⓘ |
| mineralogy |
biotite
ⓘ
feldspar ⓘ hornblende ⓘ quartz ⓘ |
| orogeny |
Laramide orogeny
NERFINISHED
ⓘ
Sevier orogeny NERFINISHED ⓘ |
| partOf | North American Cordillera NERFINISHED ⓘ |
| relatedTo |
Bitterroot lobe of the Idaho batholith
ⓘ
Sierra Nevada batholith ⓘ |
| researchUse | used to study crustal evolution of western North America ⓘ |
| rockType |
granite
ⓘ
granodiorite ⓘ |
| structuralFeature | cut by numerous faults and shear zones ⓘ |
| tectonicSetting | subduction-related magmatic arc ⓘ |
| weatheringStyle | forms rugged, granitic landscapes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.