Reference Type | Journal (article/letter/editorial) |
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Title | The magmatic affinities of some volcanic rocks from the Tweed Shield Volcano, S.E. Queensland — N.E. New South Wales |
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Journal | Geological Magazine |
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Authors | Wilkinson, J. F. G. | Author |
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Year | 1968 (June) | Volume | 105 |
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Issue | 3 |
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Publisher | Cambridge University Press (CUP) |
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DOI | doi:10.1017/s0016756800052298Search in ResearchGate |
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| Generate Citation Formats |
Mindat Ref. ID | 249934 | Long-form Identifier | mindat:1:5:249934:9 |
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GUID | 0 |
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Full Reference | Wilkinson, J. F. G. (1968) The magmatic affinities of some volcanic rocks from the Tweed Shield Volcano, S.E. Queensland — N.E. New South Wales. Geological Magazine, 105 (3) 275-289 doi:10.1017/s0016756800052298 |
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Plain Text | Wilkinson, J. F. G. (1968) The magmatic affinities of some volcanic rocks from the Tweed Shield Volcano, S.E. Queensland — N.E. New South Wales. Geological Magazine, 105 (3) 275-289 doi:10.1017/s0016756800052298 |
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In | (1968, June) Geological Magazine Vol. 105 (3) Cambridge University Press (CUP) |
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Abstract/Notes | SUMMARYSome basaltic and andesitic rocks from the Tweed Shield Volcano are tholeiitic in character as evidenced by their chemistry and the nature of their pyroxenes inferred from optical data. A common mineral assemblage in the more basic members is olivine-clinopyroxene-plagioclase-opaques-(glass). Petrographic criteria that characterize tholeiites are often lacking, and some of the more basic lavas appear to link the more typical tholeiites with transitional olivine basalts. Many of the Tweed volcanic rocks are more potassic than similar rocks in other tholeiitic sequences. The likelihood of differing lineages in the shield area is noted. |
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