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Isotopic age determinations, unaltered and hydrothermally altered igneous rocks, north-central Colorado mineral belt

Bookstrom, Arthur A; Naeser, Charles W; Shannon, James R (1987) Isotopic age determinations, unaltered and hydrothermally altered igneous rocks, north-central Colorado mineral belt. Isochron/West, vol.49, pp.13-20, Aug 1987

AuthorsBookstrom, Arthur A; Naeser, Charles W; Shannon, James R
Year1987
TitleIsotopic age determinations, unaltered and hydrothermally altered igneous rocks, north-central Colorado mineral belt
SourceIsochron/West, vol.49, pp.13-20, Aug 1987
ISSN0099-6882
GeoRef1987-081887
Keywordsabsolute age; Buckskin Gulch; Cenozoic; Clear Creek County Colorado; Colorado; Colorado mineral belt; dates; Eagle County Colorado; fission-track dating; geochronology; granites; granodiorites; igneous rocks; intrusive rocks; K/Ar; Lake County Colorado; metal ores; molybdenum ores; Montezuma Stock; monzonites; Mosquito Range; north-central Colorado; Paleogene; Park County Colorado; plutonic rocks; Red Mountain; Summit County Colorado; Tertiary; United States

28 samples from this reference

SampleRock nameMajorTraceIsotope
DF-2697Rhyolite
DF-2695Rhyolite
DF-2693Breccia
DF-1500Granite
DF-2692Rhyolite
DF-2698Rhyolite
DF-1498Rhyolite
AB-77-G-12AGranite
DF-1528Granite
DF-1497Rhyolite
DF-1496Rhyolite
DF-2699Dacite
DF-1499Dacite
AB-77-G-27ARhyolite
KA-82-585
DF-2700Rhyolite
DF-4830Granite
DF-4829Granite
DF-4831Granite
B-5289Rhyolite
B-5853Rhyolite
1323-AB-82-1Rhyolite
Bu-77-H-100Rhyolite
DF-2702Granodiorite
BU-77-H-98Rhyolite
BU-77-H-98Rhyolite
BU-77-H-98Rhyolite
DF-2701Granite