| Reference Type | Journal (article/letter/editorial) |
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| Title | The petrology, geochemistry, and economic potential of the Musquodoboit batholith, Nova Scotia |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | MacDonald, M. A. | Author |
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| Clarke, D. B. | Author |
| Year | 1985 (November 1) | Volume | 22 |
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| Issue | 11 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e85-172Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 478458 | Long-form Identifier | mindat:1:5:478458:0 |
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| GUID | 0 |
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| Full Reference | MacDonald, M. A., Clarke, D. B. (1985) The petrology, geochemistry, and economic potential of the Musquodoboit batholith, Nova Scotia. Canadian Journal of Earth Sciences, 22 (11) 1633-1642 doi:10.1139/e85-172 |
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| Plain Text | MacDonald, M. A., Clarke, D. B. (1985) The petrology, geochemistry, and economic potential of the Musquodoboit batholith, Nova Scotia. Canadian Journal of Earth Sciences, 22 (11) 1633-1642 doi:10.1139/e85-172 |
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| In | (1985, November) Canadian Journal of Earth Sciences Vol. 22 (11) Canadian Science Publishing |
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| Abstract/Notes | The Musquodoboit batholith of southwestern Nova Scotia is a massive, post-tectonic granitoid intrusion that was emplaced into the regionally deformed and metamorphosed Meguma Group metasedimentary rocks. The batholith is composed primarily of medium- to coarse-grained monzogranites into which two small (≈1 km2) porphyries and numerous dykes have been injected. All rocks contain quartz, alkali feldspar, plagioclase, muscovite, and biotite (with the exception of some leucocratic dykes). Cordierite is a major constituent in most monzogranitic rocks and also occurs in some leucocratic dykes. Andalusite and garnet 0are also present as accessory phases in some rocks.Major-element chemical analyses indicate that all rock types in the Musquodoboit batholith are peraluminous. Compositions resemble those of the eastern part South Mountain batholith; however, slightly higher concentrations of Al2O3 and P2O5 distinguish the Musquodoboit batholith from the central part of the South Mountain batholith. Major- and trace-element data indicate that magmatic differentiation has operated; however, the decrease in Σ 8 REE's, Th/U, and K/Rb from monzogranite to dyke rocks suggests that stripping by hydrothermal fluids has also occurred.Various field, petrographic, and geochemical data yield equivocal estimates of the economic potential of the Musquodoboit batholith. |
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