Madagascar flood basalt

Map showing locations of flood basalts on Madagascar

The Madagascar flood basalt, also known as the Madagascar large igneous province (LIP), is one of the major magmatic events of the Late Cretaceous. They cover a large area of basaltic and rhyolitic lava flows that erupted during an episode of widespread basaltic volcanism during the Cretaceous period. The flood basalts are characterized by lava flows, dykes, sills, and intrusions, and other volcanic features include plugs, scoria, and spatter cones. Tholeiitic basalt constitutes the primary rock type.[1][2][3]

  1. ^ Mahoney, J. J., Saunders, A. D., Storey, M., & Randriamanantenasoa, A. (2008). Geochemistry of the Volcan de l’ Androy Basalt–Rhyolite Complex, Madagascar Cretaceous Igneous Province. Journal of Petrology, 49(6), 1069–1096. doi: 10.1093/petrology/egn018
  2. ^ Melluso, L., Morra, V., Brotzu, P., Franciosi, L., Lieberknecht, A., & Bennio, L. (2003). Geochemical provinciality in the Cretaceous basaltic magmatism of Northern Madagascar: mantle source implications. Journal of the Geological Society, 160(3), 477–488. doi: 10.1144/0016-764902-060
  3. ^ Melluso, L., Morra, V., Brotzu, P., & Mahoney, J. J. (2001). The Cretaceous Igneous Province of Madagascar: Geochemistry and Petrogenesis of Lavas and Dykes from the Central–Western Sector. Journal of Petrology, 42(7), 1249–1278. doi: 10.1093/petrology/42.7.1249

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