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K-ar ages and time span of emplacement of the boulder batholith,montana

Tilling, Robert I; Klepper, Montis R; Obradovich, John D (1969) K-ar ages and time span of emplacement of the boulder batholith,montana. Special Paper - Geological Society of America, pp.641-642, 1969

AuthorsTilling, Robert I; Klepper, Montis R; Obradovich, John D
Year1969
TitleK-ar ages and time span of emplacement of the boulder batholith,montana
SourceSpecial Paper - Geological Society of America, pp.641-642, 1969
ISSN0072-1077
GeoRef1969-041590
Keywordsabsolute age; batholiths; Boulder Batholith; dates; emplacement;igneous rocks; intrusions; K/Ar; Montana; United States
Notes121

16 samples from this reference

SampleRock nameMajorTraceIsotope
D1564Gabbro
D1567Gabbro
S1419Gabbro
605-599Gabbro
63K-350Gabbro
61K-661Granodiorite
61K-647Granodiorite
63T-273Monzonite
63K-306Monzonite
D1566Monzonite
52C-45Granite
62K00Alaskite
1K-241Monzonite
W-21
61K-633Monzonite
60S-C3Monzonite