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Table 1 Summary table with the properties and interpretation of all distinguished lithofacies associations (LFA)

From: Multiple Quaternary erosion and infill cycles in overdeepened basins of the northern Alpine foreland

Lithofacies Association Facies codes Short description Bulk composition (in wt%) Clast shape (%)a
CaCO3; TOC; TS C40 RA RWR n Striated clastsb bullet-, or flat-iron- clastsb
LFA1
Diamicts with sorted interbeds
LFA1.1 Dms, Dmm Clast-rich matrix-supported diamictions, ~ 25% with crude stratification 40–60/w high variability; 0; 0 14 ± 6 8 ± 2 35 ± 6 3 0 0
LFA1.2 Gm Poorly sorted gravel and clast-supported diamicts with abundant well-rounded clasts 0 0
LFA1.3 Fl, Sl, Sm, -(d) Silt and sand with stratification/lamination, few outsized clasts
LFA2
Stratified sands
LFA2.1 Sm(d), Sl(d), Dm Stratified sands, with outsized clasts, with diamictic beds ~ 50; 0; 0
LFA2.2 Sm, Sl (Fl) Stratified sands, homogeneous, with narrow interbeds of fines 40–50/w gradual changes; 0; 0
LFA3
Laminated silt and clay
LFA3.1 Fl(d), Fl, Sl Laminated fines with variable outsized clast concentrations, sandy interbeds (dm-sized) 40–55; 0; 0
LFA3.2 Fl Laminated fines without (or individual, well rounded) outsized clasts 50–55; 0; 0
LFA4
“Marbled” diamicts
  Dmm, Dms Matrix-supported diamictions, colored according to Molasse bedrock 25–45; 0; 0
LFA5
Matrix-rich diamicts
  Dmm, Dcm Dark-colored, silt-rich diamicton, densely packed with variable amounts of clasts 40–55; 0; 0 21 ± 7 14 ± 7 20 ± 10 5 0 to + 0 to ++
LFA6
Gravel-rich diamicts
  Dcm Clast-supported diamictons, with sand and silt matrix, densely packed, with glacial striations 50–60; 0; 0 17 ± 2 17 ± 7 21 ± 1 2 0 to + +
LFA7
Gravels
LFA7.1 Gm, Gc, Sm/Sl, Fl Sorted gravels with fine-grained interbeds 50-60; 0; 0 17 ± 5 10 ± 7 30 ± 8 5 0 to + 0 to +
LFA7.2 Dcm, Gm, B Poorly sorted gravels, boulders layers, and occasional diamictons 50-60; 0; 0 19 ± 5 14 ± 5 30 ± 11 8 0 to + 0 to +
LFA8
Gravels w/Interbedded diamicts
  Dc/Gm Interbedded diamictons and gravels 35–55; 0; 0 21 ± 10 9 ± 7 33 ± 7 6 0 to ++ 0 to +
Lithofacies Association Architecture Micromorphological summary description Genetic interpretation     
Typ. thickness (in m) Occurrence in formations (Fm) and relation to other LFAs Basal contact
LFA1
Diamicts with sorted interbeds
LFA1.1 1–4 Fm-D (Fm-B?)
Overlying bedrock in the deep bedrock troughs
Stacking of diamicts (LFA1.1) with thin sorted interbeds (LFA1.2 and 1.3)
Sharp Abundant polyphase deformation features, abundant in situ grain-crushing Subglacial till, subglacial cavity fills     
LFA1.2 1–1.5 Sharp
LFA1.3 0.1–0.5 Sharp Deformed depositional banding, abundant polyphase deformation featrues, in situ grain-crushing absent
LFA2
Stratified sands
LFA2.1 5–15 Fm-B, -D and -E
Thick infill in bedrock troughs, underlain by bedrock or LFA1. LFA2.1 and 2.2 typic. in vertical succession and/or interfingering
Gradual or sharp Minor post-depositional deformation, planar- to cross-bedding Proximal basin-floor fan with reworking
LFA2.2 10–30 Gradual or sharp Distal basin-floor fan
LFA3
Laminated silt and clay
LFA3.1 10–35 Fm-B, -D, -E, -G
Thick infill in bedrock troughs, underlain by bedrock or LFA2
LFA3.1 and 3.2 typic. in vertical succession and/or interfingering
Gradual Minor post-depositional deformation, planar- to cross-bedding Proglacial lake deposits, strong glacier influence
LFA3.2 10–20 Gradual Glacier distal lake deposits, weak glacier influence
LFA4
“Marbled” diamicts
  2–5 Fm-E (Fm-B, -D?)
Overlying bedrock on trough shoulders
Overlain by LFA2 and -3
Gradual Subglacial till, glacio-tectonized bedrock
LFA5
Matrix-rich diamicts
  4–8 Fm-E and -F
Diamictons truncating fine-grained valley fill LFA3 (and -2)
Sharp or narrow transition zone Abundant polyphase deformation features, abundant in situ grain-crushing, narrow deformation zone at contact with LFA2 Subglacial till strongly influenced by reworking of fine-grained valley fill (mostly in association with LFA2 and 3)     
LFA6
Gravel-rich diamicts
  3–7 m Fm-I
Diamictons in close association with LFA7 and -8
Gradual (poor recovery) Subglacial till strongly influenced by reworking of gravelly valley fill (mostly in association with LFA7)
LFA7
Gravels
LFA7.1 7–20 Fm-A, -C, H and -I
Limited to non-overdeepened positions, LFA7.2 and 7.1 typic. in vertical succession and/or interfingering
In correlated outcrops planar- to cross-bedded
Gradual or sharp Distal fluvioglacial to fluvial outwash
LFA7.2 15–30 Gradual or sharp Fluvioglacial outwash, more proximal than 7.1
LFA8
Gravels w/Interbedded diamicts
  7–17 Fm-F and -I
Close association with LFA5,6, 7
Gradual or sharp Alternation between fluvial and mass-wasting processes in ice-marginal and fluvial channel settings
  1. C40 = % clasts with short-axis/long-axis ratio of > 0.4; RA = % angular and very angular clasts; RWR = % rounded to well-rounded clasts
  2. a Clast shape determined on 100 clasts per sample
  3. b 0: no finds, +: rare finds (0–3), ++: several finds (3–10)