Stakes, Debra S; Schiffman, Peter (1999): (Table DR2) Chemical composition of altered sills from ODP Site 139-857. PANGAEA, https://doi.org/10.1594/PANGAEA.721037, In supplement to: Stakes, DS; Schiffman, P (1999): Hydrothermal alteration within the basement of the sedimented ridge environment of Middle Valley, northern Juan de Fuca Ridge. Geological Society of America Bulletin, 111(9), 1294-1314, https://doi.org/10.1130/0016-7606(1999)111%3C1294:HAWTBO%3E2.3.CO;2