Compaction, brittle grain fracturing and silica cement, the main diagenetic events: Cambrian sandstones, Central Iran

The siliciclastic Lalun Formation (Early Cambrian) sandstones are rich in quartz, feldspars, and rarely contain rock fragments. The sandstones have a wide compositional range from quartzarenite to arkose and rarely litharenite. They experienced diagenetic events that included compaction, cementation (mostly by silica) and grain fracturing. Based on petrological and geochemical studies, we interpreted their diagenetic history, which consists of early burial, deep burial and late stages. The results are based on outcrops, and subsurface samples might show some additional features.

کلیدواژه ها:

Central Iran ، Early Cambrian ، Lalun Formation ، diagenesis