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- adj. Describing clastic rocks that bear quartz or similar silicate minerals
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Here we report the discovery of a population of large (up to about 300 μm in diameter) carbonaceous spheroidal microstructures in Mesoarchaean shales and siltstones of the Moodies Group, South Africa, the Earth's oldest siliciclastic alluvial to tidal-estuarine deposits
On the Donna property, quartz veining is hosted by metamorphosed rocks of the Thompson Assemblage, a small accreted terrane with siliciclastic sediments and minor limestones and cherts of Carboniferous to Permo-Triassic age intruded by
Coxcomb quartz veins are present in Upper Plate siliciclastic rocks.
The article is moteworthy in explaining the Carolina Bays as siliciclastic karst.
We find that in seven gas fields with siliciclastic or carbonate-dominated reservoir lithologies, dissolution in formation water at a pH of 5-5. 8 is the sole major sink for CO2.
In two fields with siliciclastic reservoir lithologies, some CO2 loss through precipitation as carbonate minerals cannot be ruled out, but can account for a maximum of 18 per cent of the loss of emplaced CO2.