and subsequent retrograde dissolution in Qixia Formation, West Sichuan: a case study of incomplete and halfway-back dolomitization
4d) suggests a decrease in the content of iron minerals during dolomitization
of carbonate rocks and redistribution of iron minerals during dolomite cementation of siliciclastic rocks (Fig.
is evident in the Ordovician Tyndall Limestone (Red River Group, Selkirk Formation).
Dissolution porosity and late diagenetic dolomitization
may have enhanced the secondary porosity to a greater level.
Kiipli (1983) noted a link between the dolomitization
of the Pae Member (and occasionally lithologies below and above) and fracture zones.
and Limestone Diagenesis: a symposium.
The OS layers have only locally slightly changed in the diagenetic processes, whereas the barren limestone interlayers are strongly enriched with MgO and depleted of CaO that is caused by diagenetic dolomitization
in the Lower Silurian La Vieille Formation in northern New Brunswick: geological context and significance for hydrocarbon exploration.
The dolomite crystals are may be formed either due to marine environment changing from deep to shallow water with increasing salinity (Murray, 2007; Folk and Lands, 1975), or may owe to secondary diagenetic processes of dolomitization
initiated shortly after the deposition (Wenk and Bulakh, 2008; Al-Aasm,2003; Baker and Kastiner 1988).
Late Pleistocene mixing zone dolomitization
, southeastern Barbados, West Indies, Sedimentology, 35: 327-348.
In the assemblage of diagenetic mineralization, in addition to calcite precipitation also dolomitization
has been observed (Iueesment et al.