Sunda Shelf

The shallow submarine continental shelf, or platform, that is a southward extension of mainland Southeast Asia. Borneo and parts of Java, Sumatra, Bali, Palawan, and associated islands are eroded metamorphic sections of the shelf left above sea level. These were joined to the Asian continent at times of low Pleistocene sea-level. The eastern edge of the shelf (Huxley's Line) may have been the eastern limit of settlement by Homo erectus.

The shallow submarine continental shelf which extends from the Southeast Asian mainland to Huxley’S Line; it supports the islands of Sumatra, Java, Borneo, Bali and Palawan, which were joined to the Asian continent at times of low Pleistocene sea-level. The eastern edge of the shelf (Huxley’s Line) may have been the eastern limit of settlement by Homo erectus.