Geochemistry and diagenesis of stratabound calcite cement layers within the Rannoch Formation of the Brent Group, Murchison Field, North Viking Graben (northern North Sea)

Extensive carbonate cementation of fluvial sandstones: An integrated outcrop and petrographic analysis from the Upper Cretaceous, Book Cliffs, Utah

“…The nature and timing of carbonate cementation of marine sandstone successions has been extensively reported in the literature (e.g., Bjørkum and Walderhaug, 1990;Wilkinson, 1991;Hendry et al, 1996;Morad, 1998;Klein et al, 1999). Furthermore, the field-and basin-scale patterns of carbonate cementation have been elucidated within many marine successions, and this has resulted in an understanding of the sedimentological and stratigraphic controls on the distribution of cementation (e.g., Prosser et al, 1993;Morad, 1998;Al-Ramadan et al, 2005;Machent et al, 2007;Taylor and Machent, 2010). Extensive carbonate cementation has also been previously reported from fluvial strata (e.g., Mozley and Davis, 1996;Milliken, 1998;Salem et al, 2000;Rossi et al, 2002;McBride and Milliken, 2006;Cavazza et al, 2009;Khidir and Catuneanu, 2010), but there is less of an understanding of the stratigraphic and sedimentological controls on its large-scale distribution (but see El-Ghali et al, 2009;Kordi et al, 2011).…”

Ankerite Cementation in Deeply Buried Jurassic Sandstone Reservoirs of the Central North Sea

“…Concretionary and disseminated carbonate cements are common in shallow marine and turbidite sandstone reservoirs of the North Sea Basin (e.g., Haszeldine et al 1992;Prosser et al 1994). The potential impact of such cementation on reservoir performance has fuelled considerable research into the spatial controls on carbonate cementation and on the scale and timing of diagenetic mass transfer (e.g., Bjørkum and Walderhaug 1990;Wilkinson and Dampier 1990;Hendry et al 1996).…”

Eogenetic dolomite cementation in lower Permian reservoir sandstones, southern Zagros, Iran

“…well G3, National Iranian Oil Company, unpublished final report) has confirmed presence of tanned and brown sandstone cuttings which are very similar to the samples described here. Stratabound and laterally continuous forms of the ferroan dolomite-cemented layers which dominate both our studied sections, in addition to the nodular forms, are typical eogenetic cementation features of marine sandstones (Kantorowicz et al 1987;Prosser et al 1993). In the studied area, they occur in the shallower facies (i.e.…”

“…Two The influx of meteoric fluids is commonly suggested to explain low d 18 O values in early carbonate cements in shoreface sandstones (Machemer and Hutcheon 1988;Prosser et al 1993;Taylor and Gawthorpe 2003) and for marine limestones dolomitization (Humphrey 1988(Humphrey , 2000. The presence of high cement volumes (up to 40%) and preservation of primary porosity in this cement both indicate that the ferroan dolomite cement within the stratabound and laterally continuous layers should have been formed during early diagenesis, prior to significant compaction.…”