Geoscience Reference
In-Depth Information
(B)
LITHO-
LOGY
GRAIN SIZE &
STRUCTURES
LITHO-
LOGY
%
SAN
D
GRAIN SIZE &
STRUCTURES
LITHOFACIES
NOMENCLATURE
LITHOFACIES
NOMENCLATURE
CLASSIFI-
CATION
CLASSIFI-
CATION
% SAND
Massive sandstone
Sm
Pebbly sandstone
Sg
Sd
Deformed sandstone
Cross-stratified
sandstone
Sx
Deformed silty
sandstone
SMd
Planar-stratified
sandstone
Sp
Deformed sandy
siltstone
MSd
Swaley cross-stratified
sandstone
Sscs
Deformed siltstone
Md
Hummocky cross-
stratified sandstone
Shcs
Cd
Deformed claystone
Ripple cross-laminated
sandstone
Sr
Weakly bioturbated
'clean' sandstone
Sb1
Thinly bedded
sandstone
Highly bioturbated
'clean' sandstone
Stb
Sb2
Highly bioturbated
slightly silty sandstone
Highly bioturbated
silty sandstone (1)
Pebbly silty
sandstone
SMg
S(M)b
Homogenised silty
sandstone
SMb1
SMh
Highly bioturbated
silty sandstone (2)
Highly bioturbated
sandy siltstone
Highly bioturbated
siltstone
SMb2
Sandstone-dominated
structured heterolith
SMs
MSb
Pebbly sandy
siltstone
MSg
Mb
Siltstone-dominated
structured heterolith
MSs
Highly bioturbated
claystones
Cb
Hummocky cross-
stratified siltstones
Mhcs
Sro
Rooted sandstone
Mg
Pebbly siltstone
Pedogenically-modified
sandstone
Rooted silty
sandstone
Pedogenically-modified
silty sandstone
Rooted sandy
siltstone
Sped
Mh
Homogenised siltstone
SMro
Mr
Rippled siltstone
SMped
MSro
Pinstriped siltstone
Mp
Pedogenically-modified
sandy siltstone
MSped
Ml
Laminated siltstone
Mro
Rooted siltstone
Claystone-dominated
structured heterolith
CMs
Pedogenically-modified
siltstone
Mped
Ch
Homogenised claystone
Mv
Argillaceous coal
Ripple cross-laminated
claystones
Cr
Rooted claystone
Cro
Cp
Pinstriped claystone
Pedogenically-modified
claystone
Cped
Cl
Laminated claystone
V
Coal
Fig. 6.
(
Continued
) (B) Main characteristics of the lithofacies identified in the Åre Formation.
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