87Sr/86Sr Chronostratigraphy and dolomitization history of the Seroe Domi Formation, Curaçao (Netherlands Antilles)

Neogene–Quaternary tectonic evolution of the Leeward Antilles islands (Aruba, Bonaire, Curaçao) from fault kinematic analysis

“…The age of the Seroe Domi Formation is therefore considered middle Miocene to Pliocene with its upper part possibly ranging into the Quaternary (de Buisonjé , 1974;Herweijer et al, 1977). A more recent chronostratigraphic study by Fouke et al (1996) has confirmed this age range for the Seroe Domi Formation and has allowed a lithologic subdivision of two main subunits within the 350 m thick sequence that crops out in Curaçao: the lowermost 30-100 m of the formation contains planktic foraminifers of early middle-Miocene and coral biostratigraphy suggests a late Miocene to late Pliocene age for the uppermost 250 m of the formation.…”

“…Beets, 1977;Beardsley and Avé Lallemant, 2007). Unlike the Falcó n-Bonaire basin, the ABC islands were emergent during the Oligocene and subsided below sea level in the middle Miocene (Fouke et al, 1996) before beginning a period of slow emergence recorded by widespread, elevated coastal limestone terraces (Herweijer and Focke, 1978;Schubert and Szabo, 1978;Biju-Duval et al, 1982).…”

“…12B). These two kinds of syntectonic sedimentary fillings show that the N-S extension occurred during deposition of the subunit 1 of the Seroe Domi Formation that was previously dated as middle Miocene (Fouke et al, 1996). On the main fault, the superposition of strike-slip striations on the normal fault striations (Fig.…”

“…These units are locally unconformably overlain by weakly folded limestones, sandstones and clays of Eocene age. As in Aruba, the youngest rocks of Curaçao are the Neogene Seroe Domi Formation and the overlying Quaternary reef terraces that fringe the island (de Buisonjé , 1974;Fouke et al, 1996).…”

Origin of Dolomite in the Arab-D Reservoir from the Ghawar Field, Saudi Arabia: Evidence from Petrographic and Geochemical Constraints

“…Although it has been suggested that higher salinity fluids will produce dolomites with higher concentrations of Sr (Lucia and Major, 1994) and that mixing-zone dolomites can be distinguished upon the basis of a lower Sr concentration (Major, 1984;Foucke, 1993), the salinity of the fluids per se will not have any influence upon the Sr concentration of the dolomite, unless the fluid has evolved to the point at which the Sr/Ca ratio has been altered. The Sr/Ca ratio of a fluid can be increased as a result of recrystallization of carbonate minerals, gypsum, or anhydrite in a closed system as all these minerals have distribution coefficients less than unity (Veizer, 1983;Butler, 1973).…”