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Regional middle Proterozoic enrichment of the subcontinental mantle source of igneous rocks from central Montana

Dudas, Francis O; Carlson, Richard W; Eggler, David H (1987) Regional middle Proterozoic enrichment of the subcontinental mantle source of igneous rocks from central Montana. Geology Boulder, vol.15, no.1, pp.22-25, Jan 1987

AuthorsDudas, Francis O; Carlson, Richard W; Eggler, David H
Year1987
TitleRegional middle Proterozoic enrichment of the subcontinental mantle source of igneous rocks from central Montana
SourceGeology Boulder, vol.15, no.1, pp.22-25, Jan 1987
ISSN0091-7613
GeoRef1987-020529
Keywordsalkaline earth metals; Cenozoic; central Montana; Crazy Mountains; enrichment; geochemistry; igneous rocks; isotopes; lead; mantle; Mesoproterozoic; metals; Montana; Nd-144/Nd-143; neodymium; Park County Montana; Precambrian; Proterozoic; rare earths; ratios; Sr-87/Sr-86; stable isotopes; strontium; Sweet Grass County Montana; Tertiary; trace elements; United States; upper Precambrian
DOI10.1130/0091-7613(1987)15<22:RMPEOT>2.0.CO;2

26 samples from this reference

Results Map Plot Download
SampleRock nameMajorTraceIsotope
AP-4Syenite yesyesyes
BF-24Syenite yesyesyes
CC13LLamprophyre yesyesyes
CT-1Syenite yesyesyes
CT-17Syenite yesyesyes
GB-36Syenite yesyesyes
GB-61Syenite yesyesyes
GC-4Syenite yesyesyes
GC-29Syenite yesyesyes
GM-5Syenite yesyesyes
IM-8Syenite yesyesyes
SR-2Syenite yesyesyes
VP-19Lamprophyre yesyesyes
BT-4Gabbro yesyesyes
BT-6Gabbro yesyesyes
BT-8Basalt yesyesyes
BT-25Basalt yesyesyes
SR-5Basalt yesyesyes
CT1CXClinopyroxenite yesyesyes
CT8XPeridotite yesyesyes
CT9-4XClinopyroxenite yesyesyes
CT10A2XClinopyroxenite yesyesyes
AP17AXHornblendite yesyesyes
FL31XHornblendite yesyesyes
SR31XHornblendite yesyesyes
BPWCARBCarbonatite yesyes