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Ikalamavony Domain

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Lithological map of the <span class="search-highlight">Ikalamavony</span> <span class="search-highlight">Domain</span> and the western margin of the An...
Published: 31 July 2017
Fig. 2. Lithological map of the Ikalamavony Domain and the western margin of the Antananarivo Domain (modified after GAF–BGR 2008 d , CGS 2009 a and Roig et al. 2012 ) showing the extent of Stenian–Tonian magmatism sampled in this study. Previous geochronological data are from
Journal Article
Published: 03 March 2020
Journal of the Geological Society (2020) 177 (4): 784–798.
... that are linked to orogenesis of the East African Orogen. In this study, we integrate remote sensing, field data and thermochronology to unravel complex deformation in the Ikalamavony and Itremo domains of central Madagascar. The deformation sequence comprises a gneissic foliation (S 1 ), followed by south- to SW...
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Journal Article
Published: 31 July 2017
Journal of the Geological Society (2018) 175 (1): 111–129.
...Fig. 2. Lithological map of the Ikalamavony Domain and the western margin of the Antananarivo Domain (modified after GAF–BGR 2008 d , CGS 2009 a and Roig et al. 2012 ) showing the extent of Stenian–Tonian magmatism sampled in this study. Previous geochronological data are from...
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Image
Geological map, structural data and cross-sections through the <span class="search-highlight">Ikalamavony</span> ...
Published: 03 March 2020
Fig. 4. Geological map, structural data and cross-sections through the Ikalamavony Domain using both our new data (black) and previously published data (blue) ( Macey et al. 2009 ). Fold axis measurements are generally interpreted to be F 2 folds as we do not observe any overprinting fold
Image
Schematic diagram showing our interpretation of the evolution of central Ma...
Published: 03 March 2020
); ( b ) at c . 1000 Ma the Dabolava Arc forms as an oceanic island arc outboard from the Antananarivo Domain ( Archibald et al. 2017 a ); ( c ) prior to the intrusion of the c . 850–750 Ma Imorona–Itsindro Suite, the Ikalamavony Domain is thrust over the Antananarivo–Itremo Domain; ( d
Image
Fig. 2.  ( a ) Tectonic <span class="search-highlight">domains</span> of the Malagasy shield (exposed Precambrian...
Published: 01 February 2011
, the Vohibory (V), Androyen (Ad), Anosyen (As), Ikalamavony–Itremo (Ik–It), Antananarivo (A), Betsimisaraka domain (BS), Antongil–Masora (A/M), and Bemarivo (B) domains. The Antananarivo domain includes a major subdomain, the Tsaratanana Complex, comprising the following: Bk, Bekadoka; M, Maevatanana
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Schematic cross-section through central Madagascar from Miandrivazo to Bric...
Published: 03 March 2020
Fig. 9. Schematic cross-section through central Madagascar from Miandrivazo to Brickaville, combining the cross-sections of Figures 4 , 5 and 7 and that of Collins et al. (2003 a ) . The Ikalamavony and Itremo domains preserve the same structural styles and kinematics. A change
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Geological map, structural data and cross-section through the Antananarivo ...
Published: 03 March 2020
Fig. 7. Geological map, structural data and cross-section through the Antananarivo Domain. This transect does not contain the complex folding that we observe in the Ikalamavony and Itremo domains. Here, foliations are steeply west-dipping. Geological polygons are from Roig et al. (2012
Journal Article
Published: 01 February 2011
Canadian Journal of Earth Sciences (2011) 48 (2): 389–417.
..., the Vohibory (V), Androyen (Ad), Anosyen (As), Ikalamavony–Itremo (Ik–It), Antananarivo (A), Betsimisaraka domain (BS), Antongil–Masora (A/M), and Bemarivo (B) domains. The Antananarivo domain includes a major subdomain, the Tsaratanana Complex, comprising the following: Bk, Bekadoka; M, Maevatanana...
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Image
Geological map, structural data and cross-sections through the Itremo–Antan...
Published: 03 March 2020
Fig. 5. Geological map, structural data and cross-sections through the Itremo–Antananarivo Domain using both our new data and previously published data ( Macey et al. 2009 ). Measured fold axes are generally interpreted to be F 2 folds as we do not observe any overprinting fold generations
Journal Article
Published: 01 January 2000
Geological Magazine (2000) 137 (1): 39–51.
... the Itremo sheet and the Antananarivo block is split into two domains based on their kinematic and structural styles. Figure 2. Geological map tracing the Betsileo shear zone from its northernmost expression near Antsirabe, where the jump in metamorphic grade across the fault is greatest, south...
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Journal Article
Journal: GSA Bulletin
Published: 10 October 2019
GSA Bulletin (2020) 132 (5-6): 1013–1030.
... . Endo , T. , Tsunogae , T. , Santosh , M. , Shaji , E. , and Rambeloson , R.A. , 2017 , Petrogenesis of incipient charnockite in the Ikalamavony sub-domain, south-central Madagascar: New insights from phase equilibrium modeling : Lithos , v. 282–283 , p. 431 – 446 , https...
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Journal Article
Journal: Economic Geology
Published: 01 January 2017
Economic Geology (2017) 112 (1): 145–168.
... occurence, Madagascar: Implications for the Ikalamavony sub-domain deposition age : Journal of African Earth Sciences , v. 94 , p. 119 – 127 . Arndt N.T. Albarède E. Nisbet E.G. , 1997 , Mafic and ultramafic magmatism , in De Wit M.J. Ashwaal L.D. , eds., Greenstone belts...
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Journal Article
Journal: Economic Geology
Published: 01 January 2017
Economic Geology (2017) 112 (1): 99–122.
... . André-Mayer A.S. Ramiandrisoa N. Vanderhaeghe O. Reisberg L. Rabeandrasana S. Zimmermann C. , 2014 , Re-Os geochronological constraints on the Dabolava mesothermal gold occurrence, Madagascar: Implications for the Ikalamavony sub-domain deposition age : Journal of African Earth...
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Journal Article
Published: 01 December 1998
Journal of the Geological Society (1998) 155 (6): 1009–1024.
... Cosmochimica Acta 1969 33 431 453 Paquette J.-L Nedelec A. Moine B. Rakotondrazafy M. U-Pb, single zircon Pb-evaporation, and Sm-Nd isotopic study of a granulite domain in SE Madagascar Journal of Geology 1994 102 523 538 Pinna P. On the dual nature...
Series: Geological Society, London, Special Publications
Published: 01 January 2011
DOI: 10.1144/SP357.4
EISBN: 9781862396050
... al. 1999 a ; Meert et al. 2001 ; Goodenough et al. 2010 ). In central-west Madagascar, the Antananarivo Craton is overlain by Proterozoic metasedimentary rocks of the Itremo, Molo and Amborompotsy–Ikalamavony groups in the Itremo Domain. These correlated rocks of different metamorphic...
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Series: Geological Society, London, Memoirs
Published: 01 January 2015
DOI: 10.1144/M43.20
EISBN: 9781862397194
..., Cuddapah Basin; KP, Krishna Province; SB, Salem Block; CSS, Cauvery Shear System; MB, Madurai Block; TB, Trivandrum Block; BM, Bemarivo domain; An, Antongil Craton; Ant, Antananarivo Craton; Ms, Masora Craton; Ik, Ikalamavony subdomain; A-M, Anaboriana–Manapotsy; (a) Itremo Group; (b) Sahantaha Group; (c...
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