Atmospheric noble gas signatures in deep Michigan Basin brines as indicators of a past thermal event
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Crustal noble gases in deep brines as natural tracers of vertical transport processes in the Michigan Basin
[1] Noble gas concentrations and isotopic ratios are presented for 38 deep ( 0.5–3.6 km) brine samples in the Michigan Basin. These brine samples clearly show the presence of an important crustal component of He, Ne, Ar, and Xe. Both Arcrust and Xecrust display the presence of a strong vertical gradient along the sedimentary strata of the basin. We show that the in situ production for these two...
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تاریخ انتشار 2008