Quartz sandstone

This paper quantitatively evaluates diagenetic and cataclastic effects on potential reservoir quality and shows assessing the relative importance of diagenesis, cataclasis, dissolution and possible fracturing process in the Penrith sandstone.

12p viyoko 01-10-2024 2 1   Download

They show high-K calc-alkaline affinity. On primitive-normalized spider diagrams, negative anomalies of Ba, Nb, Sr, P, and Ti and positive anomalies of Pb are noteworthy. Their chondrite-normalized REE patterns are characterized by strongly fractionated patterns with demonstrative negative Eu anomaly, whereby middle REE are not fractionated relative to the heavy REE. These geochemical features suggest a fractionating mineral assemblage of feldspar, apatite, and biotite without significant involvement of garnet.

12p tanmocphong 29-01-2022 11 2   Download