Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint
Electron microprobe (EMP) dating on monazite in granulite-facies rocks from Forefinger Point,East Antarctica, yielded dominant ages of ~500 Ma on matrix monazites.They are associated with secondary cordierite, biotite and sapphirine, formed during nearly isothermal decompression after the high P-T a...
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ftawi:oai:epic.awi.de:16967 2023-05-15T13:39:47+02:00 Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint Motoyoshi, Y. Hokada, T. Shiraishi, K. 2006 application/pdf https://epic.awi.de/id/eprint/16967/ https://epic.awi.de/id/eprint/16967/1/Mot2006a.pdf https://hdl.handle.net/10013/epic.26796 https://hdl.handle.net/10013/epic.26796.d001 unknown https://epic.awi.de/id/eprint/16967/1/Mot2006a.pdf https://hdl.handle.net/10013/epic.26796.d001 Motoyoshi, Y. , Hokada, T. and Shiraishi, K. (2006) Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint , In: Fütterer, D.K.; Damaske, D.; Kleinschmidt, G.; Miller, H.; Tessensohn, F. (eds) Antarctica contributions to global earth sciences. Springer-Verlag, Berlin Heidelberg New York . hdl:10013/epic.26796 EPIC3In: Fütterer, D.K.; Damaske, D.; Kleinschmidt, G.; Miller, H.; Tessensohn, F. (eds) Antarctica contributions to global earth sciences. Springer-Verlag, Berlin Heidelberg New York, pp. 63-68 Inbook peerRev 2006 ftawi 2021-12-24T15:31:56Z Electron microprobe (EMP) dating on monazite in granulite-facies rocks from Forefinger Point,East Antarctica, yielded dominant ages of ~500 Ma on matrix monazites.They are associated with secondary cordierite, biotite and sapphirine, formed during nearly isothermal decompression after the high P-T assemblages involving garnet, orthopyroxene and sillimanite. Older ages around 750 1 000 Ma are detected in monazite cores and in monazite inclusions in garnet porphyroblast. Combining the available age data and the reaction textures, it becomes evident that the Forefinger Point granulites have been overprinted by a granulite-facies decompressional event of Pan-African age. Moreover, EMP monazite dating imply that the Forefinger Point granulites have experienced at least two stages of metamorphic evolution. Book Part Antarc* Antarctica East Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) East Antarctica Forefinger Point ENVELOPE(48.067,48.067,-67.617,-67.617) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Electron microprobe (EMP) dating on monazite in granulite-facies rocks from Forefinger Point,East Antarctica, yielded dominant ages of ~500 Ma on matrix monazites.They are associated with secondary cordierite, biotite and sapphirine, formed during nearly isothermal decompression after the high P-T assemblages involving garnet, orthopyroxene and sillimanite. Older ages around 750 1 000 Ma are detected in monazite cores and in monazite inclusions in garnet porphyroblast. Combining the available age data and the reaction textures, it becomes evident that the Forefinger Point granulites have been overprinted by a granulite-facies decompressional event of Pan-African age. Moreover, EMP monazite dating imply that the Forefinger Point granulites have experienced at least two stages of metamorphic evolution. |
format |
Book Part |
author |
Motoyoshi, Y. Hokada, T. Shiraishi, K. |
spellingShingle |
Motoyoshi, Y. Hokada, T. Shiraishi, K. Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint |
author_facet |
Motoyoshi, Y. Hokada, T. Shiraishi, K. |
author_sort |
Motoyoshi, Y. |
title |
Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint |
title_short |
Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint |
title_full |
Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint |
title_fullStr |
Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint |
title_full_unstemmed |
Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint |
title_sort |
electron micoprobe (emp) dating on monazite from forefinger point granulites, east antarctica: implication for pan-african overprint |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/16967/ https://epic.awi.de/id/eprint/16967/1/Mot2006a.pdf https://hdl.handle.net/10013/epic.26796 https://hdl.handle.net/10013/epic.26796.d001 |
long_lat |
ENVELOPE(48.067,48.067,-67.617,-67.617) |
geographic |
East Antarctica Forefinger Point |
geographic_facet |
East Antarctica Forefinger Point |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_source |
EPIC3In: Fütterer, D.K.; Damaske, D.; Kleinschmidt, G.; Miller, H.; Tessensohn, F. (eds) Antarctica contributions to global earth sciences. Springer-Verlag, Berlin Heidelberg New York, pp. 63-68 |
op_relation |
https://epic.awi.de/id/eprint/16967/1/Mot2006a.pdf https://hdl.handle.net/10013/epic.26796.d001 Motoyoshi, Y. , Hokada, T. and Shiraishi, K. (2006) Electron micoprobe (EMP) dating on monazite from Forefinger Point granulites, East Antarctica: Implication for Pan-African overprint , In: Fütterer, D.K.; Damaske, D.; Kleinschmidt, G.; Miller, H.; Tessensohn, F. (eds) Antarctica contributions to global earth sciences. Springer-Verlag, Berlin Heidelberg New York . hdl:10013/epic.26796 |
_version_ |
1766124188813230080 |