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A- Bedforms and exogenetic sedimentary structures
generated by unidirectional flows A.1.1 Horizontal and low-angle lamination
A.1.2 Graded bedding
A.1.3 Parting lineation A.1.4 Current
ripples and megarriples A.1.5 Cross-lamination
and cross-bedding. Types
A.1.6 Erosive: rill marks
A.2 In cohesive sediment
A.2.1 Scour marks and casts A.2.2 Tool marks and casts |
B.1 In non cohesive sediment B.1.1 Wave ripples B.1.2 Interference ripples B.1.3 Cross-lamination and cross-bedding B.1.4 Lenticular and flaser bedding B.1.5 Herringbone cross-stratification B.1.6 Hummocky
cross-stratification |
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D- Exogenetic and endogenetic
sedimentary structures generated by deformation D.1 Exogenetic D.1.1
Desiccation structures (mud cracks) D.1.2
Raindrop and hailstone imprints D.1.3
Crystal-growth imprints D.2
Endogenetic D.2.1
Load casts D.2.2
Ball and pillow structures D.2.3
Convolute bedding and lamination D.2.4
Flame and dish structures D.2.5
Sand volcanoes D.2.6
Slump structures D.2.7
Clastic dikes D.2.8
Intraformational breccia |
E- Biogenic sedimentary structures E.1 Bioconstructed structures and rocks E.1.1 Stromatolites and oncolites E.1.2 Bioconstructions (reefal facies) E.1.3 Other bioconstructions and associated facies E-2
Structures generated by substrate modification Trace fossils
E.2.1 On soft substrate, Bioturbation
Surface traces
Internal traces E.2.2 On hard substrate, Borings |
F- Secondary (diagenetic)
sedimentary structures F.1 Structures generated by precipitation F.1.1 Nodules F.1.2 Spherulites F.1.3 Rosettes F.1.4 Concretions F.1.5 Geodes F.1.6 Septaria F.2 Structures generated by dissolution F.2.1 Stylolites F.2.2 Cone-in-cone |
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