fig01.htm

Figure 1. Sketch map showing structural divisions within the Sierra Leone region and location of dredging stations. Symbols: 1 - FZ valley axis, 2 - boundary between various structural domains, 3 - axis of a neovolcanic ridge or its ancient analogue, 4 - outline of the Southwest outcrop domain of basalts, 5 - peridotite, 6 - gabbro, 7 - basalt, 8 - rocks with sulfide mineralization. White line depicts valley axes of active, abandoned, and nascent rifts. Based on data from Mazarovich et al. [2001c]. Inset shows the survey area in the framework of the Atlantic floor structure.


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