Feldspar cementation
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General diagenetic patternsin Miocene Muddy Creek Formation and upper Devonian OldRed Sandstone (ORS) can be characterized as follows:i) early diagenesis characterized by the formation of early hematite, carbonate, and clay cement; ii) burial diagenesis followed by the formation of quartz and feldspar overgrowths, poikilotopic calcite andpore-filling-clays;iii)late diagenesis characterized by the formation of late hematite replacing previous poikilotopic carbonate cement.
12p vimulcahy 02-10-2023 3 2 Download
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Diagenesis in the Permo-Triassic New Red Sandstone, Isle of Arran is characterized by early cementation of hematite, clay, and calcite minerals, followed by burial compaction, quartz, feldspar, and pyrite cementation. Cataclasis post-dated the quartz and feldspar cementation and reduced the grain and pore aperture size in deformed samples.
12p vilucius 03-03-2023 3 3 Download