
"The Bushveld Bolide" Evidence for a Hypothetical Catastrophic Extra-terrestrial Impact Event. Buchanan 2012 Introduction The Bushveld Igneous Complex (BIC) South Africa is one of the largest and most enigmatic geological features on Earth. Traditionally, formation of the BIC has been attributed to extensive magmatic activity (Cawthorn, R.G. (1996). However, the unique shape and distribution of the complex, as well as its association with other regional geological features, suggest an alternative explanation. The BIC was formed by a massive, low-angle carbon rich extra-terrestrial impact shatter cone vaporising event. Geological Evidence The elliptical shatter cone shape of the BIC, spanning over 65,000 square km, indicates a trajectory of impact at a shallow angle, rather than a purely vertical magmatic intrusion (Reimold, W.U., & Gibson, R.L. (2006). The Pilanesberg volcano and associated lava flows in the region do not exhibit the expected circumferentia...