TY  - JOUR
A1  - Schurr, Simon Lukas
A1  - Strauss, Harald
A1  - Mueller, Mathias
A1  - Immenhauser, Adrian
T1  - Assessing the robustness of carbonate‐associated sulfate during hydrothermal dolomitization of the Latemar platform, Italy
Y1  - 2021-09-12
VL  - 33
IS  - 6
SP  - 621
EP  - 629
JF  - Terra Nova
DO  - 10.1111/ter.12554
PB  - 
N2  - Carbonate‐associated sulfate (CAS) is an important proxy for reconstructing marine sulfur cycling throughout Earth's history. In order to assess the impact of carbonate neomorphism on δ34SCAS data, a mineralogical‐spatial transect from early diagenetic limestone into low‐temperature hydrothermal dolostone was analyzed in the middle Triassic Latemar platform interior, northern Italy. This study addresses the yet unconstrained question whether hydrothermal dolostone preserves a marine δ34SCAS signature and, hence, might represent an archive for past seawater sulfate. In this study, δ34SCAS values were measured in low‐temperature hydrothermal dolostone and compared with data from their corresponding precursor limestone. Results shown here reveal that δ34SCAS values for dolostone and precursor limestone are indistinguishable. This points to a rock‐buffered middle Triassic marine δ34S signature not affected by hydrothermal alteration. Hence, hydrothermal dolostone represents, under favorable conditions, an archive for unraveling past marine sulfur cycling.
UR  - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9894
ER  -