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Evolution of Square Butte Laccolith, eastern Highwood Mountains, Montana

Hirsch, Toni L; Hyndman, Donald W (1985) Evolution of Square Butte Laccolith, eastern Highwood Mountains, Montana. Northwest Geology, vol.14, pp.17-31, 1985

AuthorsHirsch, Toni L; Hyndman, Donald W
Year1985
TitleEvolution of Square Butte Laccolith, eastern Highwood Mountains, Montana
SourceNorthwest Geology, vol.14, pp.17-31, 1985
ISSN0096-7769
GeoRef1988-039016
Keywordschemical composition; evolution; Highwood Mountains; igneous rocks; intrusions; laccoliths; mineral composition; Montana; petrology; plutonic rocks; shonkinite; Square Butte Laccolith; syenites; United States

10 samples from this reference

SampleRock nameMajorTraceIsotope
SBC-3Syenite yes
123ssSyenite yes
122ssSyenite yes
SBC-1Syenite yes
118pSyenite yes
10shShonkinite yes
131shShonkinite yes
SBC-7Shonkinite yes
SBC-9Shonkinite yes
SBC-8Shonkinite yes