BackgroundBukit Telor, also known as Bukit Ibul, is a basaltic cone located along the northern coast of Sumatra, more than 200 km behind the axis of Quaternary volcanism. It is only about 38 m high, but the total outcrop of the basalts is as much 4 km2 in area (Barber et al., 2005). The K-Ar age of these basalts is about 1.25 +/- 0.19 million years. As with Sukadana and because of its back-arc location, Bukit Telor basalts are quite texturally and compositionally different from the arc volcanics. Lherzolite mantle xenoliths are common, and the lavas typically range from quartz-tholeiite to mildly alkaline in composition (Barber et al., 2005).
Source: Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8