The information on this page is a summary description. The full formal description is available here: Hour Formation Abbreviation HUR Parent unit Deville Group Child units Lithological description Thick beds of light coloured to light greenish quartzite and green slate. The white sandstone is locally altered into a reddened sandstone. Age Due to the absence...
The information on this page is a summary description. The full formal description is available here: Anchamps Formation Abbreviation ANC Parent unit Revin Group Child units Lithological description Formation subdivided into three members: the unnamed lower member (old: Rv3a) black slate, slightly micaceous with a few thin black quartzite beds; the Crapaude-Pierre Member (CRP, old:...
The information on this page is a summary description. The full formal description is available here: Bellevaux Formation Abbreviation BEL Parent unit Deville Group Child units Lithological description Alternation of greenish and purple slate and shale; greenish shale and white quartzite. Age The only fossils present are the trace fossils Oldhamia antiqua and O. radiata....
The information on this page is a summary description. The full formal description is available here: Petite-Commune Formation Abbreviation PCO Parent unit Revin Group Child units Lithological description Thick beds of 5 to 10 m of black quartzite, rich in pyrite, coarse-grained, micaceous, alternating with micaceous coarse-grained pyritic slate, and fine-grained graphitic slate. Some cross-bedding...
The information on this page is a summary description. The full formal description is available here: Wanne Formation Abbreviation WAN Parent unit Revin Group Child units Lithological description Dark green-blue fine slate and green-greyish quartzite, alternating with dark slaty quartzite; some rare 10-15 cm thick conglomerate beds with slaty, quartzitic and sometimes phosphatic pebbles. The...
The information on this page is a summary description. The full formal description is available here: Vieux-Moulains de Thilay Formation Abbreviation VMT Parent unit Child units Lithological description Dark and light grey laminated siltstone and slate, “quartzophyllades zonaires” from the literature, with black slate levels. Age Outcrops west of Vieux-Moulins de Thilay are dated with...
The information on this page is a summary description. The full formal description is available here: La Venne Formation Abbreviation VEN Parent unit Revin Group Child units Lithological description Heterogeneous unit characterised by the alternation of black slate and dark quartzite. The quartzite is sometimes very clayey and micaceous. In the middle part very thick...
The information on this page is a summary description. The full formal description is available here: La Chapelle Formation Abbreviation LCH Parent unit Child units Lithological description Formation subdivided into two members. The unnamed lower member (old: Rv2a), is an alternation of black quartzite in 1 to 4 m thick beds and thin bedded black...
The information on this page is a summary description. The full formal description is available here: La Gleize Formation Abbreviation GLE Parent unit Revin Group Child units Lithological description In the north: black slate and silty slate (called “quartzophyllade” in the older literature); the upper part contains sometimes dolomite nodules with cone-in-cone structures; the lower...
The information on this page is a summary description. The full formal description is available here: Illy Formation Abbreviation ILL Parent unit Child units Lithological description Black slate and silty slate (called “quartzophyllade” in the older literature), micaceous with not frequently thin sericite laminae; the middle and upper part of the formation show frequent alternations...
