“Character of active hydrothermal mounds and near by altered hemipelagic sediments in the hydrothermal areas of Middle Valley, northern Juan de Fuca Ridge: data on shallow cores”, Canadian Mineralogist, vol. 31, pp. 973–996, 1993.
, “Clay mineralogy of active hydrothermal chimneys and an associated mound, Middle Valley, northern Juan de Fuca Ridge”, Canadian Mineralogist, vol. 31, pp. 957–971, 1993.
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