Pikes Peak granite
E714058
Pikes Peak granite is a distinctive, coarse-grained Precambrian igneous rock that forms much of Colorado’s Front Range, including the summit region of Pikes Peak and surrounding mountains.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Precambrian rock
ⓘ
felsic intrusive rock ⓘ granite ⓘ igneous rock ⓘ plutonic rock ⓘ |
| approximateAgeInMillionsOfYears | 1100 ⓘ |
| associatedRockType |
aplite dikes
ⓘ
pegmatite dikes ⓘ |
| associatedWith | Pikes Peak batholith NERFINISHED ⓘ |
| collectingInterest |
source of gem-quality amazonite
ⓘ
source of smoky quartz crystals ⓘ |
| color |
pink
ⓘ
reddish ⓘ |
| commonMineral |
biotite
ⓘ
hornblende ⓘ plagioclase feldspar ⓘ quartz ⓘ |
| containsMineral |
amazonite
ⓘ
fluorite ⓘ smoky quartz ⓘ topaz ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dominantMineral |
microcline feldspar
ⓘ
potassium feldspar ⓘ |
| economicUse |
decorative stone
ⓘ
dimension stone ⓘ |
| formedBy | crystallization of magma at depth ⓘ |
| forms |
core of Pikes Peak
ⓘ
large portions of Colorado’s Front Range ⓘ |
| geochemicalType |
alkali-rich
ⓘ
silica-rich ⓘ |
| geologicAge |
Mesoproterozoic
NERFINISHED
ⓘ
Precambrian NERFINISHED ⓘ |
| geologicProvince | Southern Rocky Mountains NERFINISHED ⓘ |
| grainSize | coarse-grained ⓘ |
| intrusiveBodyType | batholith ⓘ |
| lithology | coarse-grained granite ⓘ |
| namedAfter | Pikes Peak NERFINISHED ⓘ |
| notableLocality |
Cheyenne Mountain area
NERFINISHED
ⓘ
Pikes Peak summit region NERFINISHED ⓘ Rampart Range NERFINISHED ⓘ |
| outcropsIn |
Colorado
NERFINISHED
ⓘ
Front Range NERFINISHED ⓘ Pikes Peak NERFINISHED ⓘ |
| tectonicSetting |
A-type granite
ⓘ
anorogenic ⓘ |
| texture | phaneritic ⓘ |
| weatheringStyle | forms rounded domes and tors ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.