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Rainfall and the amount of water available to leach ions from soil are among the most important features determining mineral weathering, secondary mineral synthesis and soil chemical properties. Along an arid to humid climosequence on Kohala Mountain, Hawaii, we sampled 16 soil profiles and found that weathering and soil properties change in a nonlinear fashion with increased rainfall. The lavas are...
Mineralogical and isotope results paired with field observations suggest that halloysite is the favored, albeit metastable, aluminosilicate end product of arid-zone basalt weathering on Kohala, Hawai'i, and that the formation of smectite has been inhibited by kinetic factors. Soils sampled on constructional lava flows having ages ranging from 4 to 350 ka provide a chronosequence that has had minimal...
A comparison was made between soils on north- and south-facing slopes of six cinder cones in the Springerville volcanic field (SVF), Arizona, in order to determine the influence of slope aspect on soil weathering processes. Twenty-four soil pedons were sampled on different aspects of six cinder cones. To control for the influence of slope on pedogenesis, all sample sites possessed slopes of 17+/-2...
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