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Site location. (A) The hilly terrain of the Zambales ophiolite range in Luzon, Philippines. (B) The source seep at Manleulag Spring National Park (scale bar = 30 cm). (C) Terraces and rimstone dams, 9.9 m from source. (D) A large accretion of terraces on tree roots and fallen branches, 19.5 m from source.
