1 Geological Society of Zimbabwe Annual Summer Symposium, Kariba, 20 November 2015 Field Excursion Guidebook 20-22 November 2015 The Sinamwenda Impact Structure, Western Zimbabwe Dr Sharad Master School of Geosciences University of the Witwatersrand P. Bag 3, WITS 2050 Johannesburg South Africa Sharad.master@wits.ac.za Figure 1: The location of the Sinamwenda Impact Structure in relation to Lake Kariba and the local geology of the Karoo Supergroup sandstones (beige colour) and overlying Karoo basalts (blue), and underlying lower Karoo Madumabisa Mudstones (grey), Sijarira Group (orange- red), and crystalline basement of the NW Magondi Belt (pink).