The information on this page is a summary description. The full formal description is available here: Petit Roeulx Formation Abbreviation PER Parent unit Child units Lithological description Cleaved mudstones and siltstone (called “phyllades” in older literature), with decimetric beds of obliquely stratified sandstone and other thin sandstone beds; variable colours from unweathered greenish grey, dark...
The information on this page is a summary description. The full formal description is available here: Steenkerque Formation Abbreviation STK Parent unit Child units Lithological description Cleaved mudstone and siltstone, dark grey when unweathered, frequently altered in light beige or brownish beige. Millimetric interbeds of fine sandstone or coarse siltstone are rare and mostly absent....
The information on this page is a summary description. The full formal description is available here: Froide Fontaine Formation Abbreviation FRF Parent unit Child units Lithological description Cleaved mudstone and siltstone, of greenish grey to dark grey unweathered colours, with additionally decimetric beds of obliquely stratified rather coarse sandstone; often micaceous, a typical feature of...
The information on this page is a summary description. The full formal description is available here: Les Vallées Formation Abbreviation LVA Parent unit Child units Lithological description Grey mudslate, mudstone, siltstone and fine sandstone with non-calcareous quartzic pelite in the e-divisions; alternating distal turbidites with thin bedded laminated hemipelagites. In the lower 125 m the...
The information on this page is a summary description. The full formal description is available here: Vissoul Formation Abbreviation VSS Parent unit Child units Lithological description Grey mudslate, mudstone, siltstone and fine sandstone with non-calcareous quartzic pelite in the e-divisions. Sedimentology: alternating distal to slightly proximal turbidites with thin bedded laminated hemipelagites; the Tde sequences...
The information on this page is a summary description. The full formal description is available here: Huet Formation Abbreviation HUE Parent unit Child units Lithological description Greenish to grey mudstone, siltstone and fine sandstone, poorly sorted, with characteristic orange-yellow alveoli of decalcified fossil fragments. Heterogeneous sub-metrical beds, with a faint fining upward granulometry, a slightly...
The information on this page is a summary description. The full formal description is available here: Fauquez Formation Abbreviation FAU Parent unit Child units Lithological description Centimetric to subcentimetric alternation of black slate and dark grey silty slate: lamination often present, are marked by millimetric to sub-millimetric pyrite crystals. From about 4 m above the...
The information on this page is a summary description. The full formal description is available here: Madot Formation Abbreviation MAD Parent unit Child units Lithological description Unit containing many volcanic rocks (volcano-sedimentary rock, volcanic breccias containing shale fragments), interstratified with greenish-grey heterogeneous coarse siltstone and mudstone rich in macrofossils such as bryozoans, brachiopods, crinoids, trilobites,...
The information on this page is a summary description. The full formal description is available here: Brutia Formation Abbreviation BRT Parent unit Child units Lithological description The lower Les Goutteux Member (new name) contains medium to dark grey slate (mudstone), compactly bedded that become darker in the upper part. In the first third of the...
The information on this page is a summary description. The full formal description is available here: Deerlijk Formation Abbreviation DEE Parent unit Child units Lithological description Mostly grey shale unit, with centimetric to sometimes decimetric alternation of thin fining upward cycles from light grey fine sandstone to medium grey shale, and dark to black graptolitic...
