Multiple fluid flow events from salt‐related rifting to basin inversion (Upper Pedraforca thrust sheet, SE Pyrenees)

The field of clumped isotope paleothermometry is over a decade old, but the influence of precipitation rate on the fractionation of clumped isotopes between natural carbonates and their environmental solutions remains unclear. Here we apply two different proxies, carbonate clumped isotope paleothermometry and trace element analysis, to investigate whether or not precipitation rates play a major control on the fractionation of clumped isotopes. Twenty-one transect points from three calcite samples coming from veins along fractures (Jebel Madar, Oman) were investigated. The samples selected based on two different types of calcite cements were recognized: (i) Lower temperature macro-columnar calcite, and (ii) Higher temperature calcites within thin vein (“thin-vein calcites”). The Δ47 values vary between 0.513 ± 0.00‰ and 0.667 ± 0.01‰ corresponding to calculated clumped isotope temperatures of 29–59 …

File Type: 12596
Categories: Publications