| Reference Type | Journal (article/letter/editorial) |
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| Title | Porphyritic plagioclase–hornblende–pyroxene granulite from charnockitic rocks of Chipurupalli, Visakhapatnam district, Andhra Pradesh, South India |
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| Journal | Mineralogical Magazine |
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| Authors | Rao, K. S. R. | Author |
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| Rao, A. T. | Author |
| Sriramadas, A. | Author |
| Year | 1969 (December) | Volume | 37 |
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| Issue | 288 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_37/37-288-497.pdf+ |
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| DOI | doi:10.1180/minmag.1969.037.288.10Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6323 | Long-form Identifier | mindat:1:5:6323:8 |
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| GUID | 0 |
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| Full Reference | Rao, K. S. R., Rao, A. T., Sriramadas, A. (1969) Porphyritic plagioclase–hornblende–pyroxene granulite from charnockitic rocks of Chipurupalli, Visakhapatnam district, Andhra Pradesh, South India. Mineralogical Magazine, 37 (288) 497-503 doi:10.1180/minmag.1969.037.288.10 |
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| Plain Text | Rao, K. S. R., Rao, A. T., Sriramadas, A. (1969) Porphyritic plagioclase–hornblende–pyroxene granulite from charnockitic rocks of Chipurupalli, Visakhapatnam district, Andhra Pradesh, South India. Mineralogical Magazine, 37 (288) 497-503 doi:10.1180/minmag.1969.037.288.10 |
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| In | (1969, December) Mineralogical Magazine Vol. 37 (288) Mineralogical Society |
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| Abstract/Notes | SummaryAn unusual occurrence of porphyritic plagioclase-hornblende-pyroxene granulite (porphyritic basic charnockite) has been observed within the ‘Charnockite region’ of the Eastern Ghats of the Precambrian formations of India. From the X-ray and chemical data the phenocrysts are considered to be augite phenocrysts. Based on petrographic and chemical evidence it is inferred that the basic charnockites of Chipurupalli area in Visakhapatnam district are formed from tholeiitic magma as a gabbroic mass under deep seated plutonic conditions. The gabbroic mass has been recrystallized as plagioclase-hornblende-pyroxene granulite due to later metamorphism, leaving most of the phenocrysts unaffected. |
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