Springs and streams of the Taro–Ceno Valleys (Northern Apennine, Italy): Reaction path modeling of waters interacting with serpentinized ultramafic rocks

A conceptual hydrogeological model of ophiolitic aquifers (serpentinised peridotite): The test example of Mt. Prinzera (Northern Italy)

“…Ternary anions and cations classification diagrams of the sampled springs. Hystorical data areas include data from Venturelli et al (), Boschetti and Toscani (), and Boschetti et al (). Gray Ca‐HCO 3 area represents local surface waters from Taro valley (Boschetti & Toscani, )…”

Trace element distribution and Cr(VI) speciation in Ca-HCO3 and Mg-HCO3 spring waters from the northern sector of the Pollino massif, southern Italy

“…A continuing increase in the a Mg2+ /(a H+ ) 2 ratio and in dissolved silica evidences the appearance of Mg-vermiculite (Boschetti and Toscani, 2008). The coexistence of the two solid phases is illustrated by the following reaction:…”

Geochemical evidence for active tropical serpentinization in the Santa Elena Ophiolite, Costa Rica: An analog of a humid early Earth?

“…On land, interaction of meteoric water with peridotites results in Mg-HCO 3 waters, which in the absence of a CO 2 source, progressively evolve to hyperalkaline Ca 21 -OH waters [Bruni et al, 2002;Boschetti and Toscani, 2008;Marques et al, 2008]. Despite presumably low reaction temperatures in the basement (50-100 C, as no heat source has been observed in any of the continental serpentinization sites), high methane and/or hydrogen concentrations were measured in the Voltri Massif, Italy [Cipolli et al, 2004], the Zambales Ophiolite, Philippines [Abrajano et al, 1988[Abrajano et al, , 1990, in the Newfoundland Ophiolite, Canada [Szponar et al, 2012], in the Samail Ophiolite, Oman [Neal and Stanger, 1983], and in the Othrys Ophiolite, Greece [Etiope et al, 2013].…”