Sheet N°

Qs : sand deposits

Qg : gravel sheets

Qa : alluvium

Qb : depression deposits

Q : undiferenciated deposits

<1cm²

No

N

dune

eolian dunes

gravel sheets

wadi bed alluvium

sabkhah deposits

eolian sand sheets

sand and gravel sheets

terraces (with/without pediment)

khabra deposits

windblown materials

pediment material

flood plain and basin alluvium

lacustrine deposits

(loess)

colluvium

alluvial fans

(tidal mudflats)

(boulder, scree, talus...)

caliche, duricrust

reef complex

Qsg : undifferenciated sand and gravel fields

QI : reworked loess

16 F

Qs : eolian deposits

Qlo : loess and older alluvium

Qm : sabkhah and

Qa : alluvium

Qu

7

7

Qf : flood plain deposits

tidal mudflats deposits

17E

Qes : eolian sand fields

Qs : pediment material

Qal : alluvial deposits

Qsb : sabkhah

Qrl

5

4

Qt : alluvial terrace deposits

17 F

Qs : eolian and alluvial sand

Qal : wadi alluvium

Qsb : sabkhah

Qtr

6

4

Qrs : reworked alluvium

and tidal flats

Qst : terrace silt

17G

Qs : eolian sand

Qa : wadi and present

Qm : undif. deposits

4

2

NW

flood plain alluvium

18E

Qes : eolian sand field

Qs : pediment material

Qal : alluvial deposits

Qsb : sabkhah

4

2

18 F

Qal : wadi alluvium, terraces,

1

1

eluvium, colluvium, fans

18G

Qe : eolian deposits

Qa : alluvium and gravel

2

1

NE

sand dunes

19E

Qs : eolian sand and

QaI : alluvial deposits (wadi,

2

1

pediment material

flood-plain, and terraces)

Qt : terraces and alluvial fans

19 F

Qa : wadi alluvium, terraces,

Qs

3

2

and colluvium

19G

Qe : eolian deposits

Qa : wadi alluvium, terraces,

Qa : wadi alluvium, terraces,

2

0

NW

recent pediment

recent pediment,

20D

Qe : eolian sand, silt and

QaI : wadi, outwash plains

Qs : sabkhah

4

1

pediment deposits

and terrace alluvial deposits

Qr : reef limestone

Qes : eolian deposits

20E

Qa : wadi alluvium

4

0

Qs : flood- and coastal-plain

Qt : terraces and alluvial fans

Qe : eolian deposits

20 F

Qs : old loessic silt

± Qa : wadi alluvium

Qa : wadi alluvium

4

0

Qt : terraces

Qvy : colluvium

Qtx

Qsz : sand sheets

Qgz : active gravel sheets

Qtz : wadi-bed deposits

Qby : sabkhah

Qty

15

12

20G

Qdz : mobile dunes

Qgy : inactive gravel sheets

Qay : aggradation sheets

Qky et Qkz : khabra

Qg

EW

Qdy : fixed dunes

Qly : lacustrine deposits

undifferenciated alluvium :

21D

Qe : eolian sand

Qal : wadi alluvium

Qsb : sabkhah

Qu : undif. deposits

8

2

Qat : terraced gravel, Qu

Qc : reef and beach

Qa : alluvial fans, Qt : talus deposits

21E

Qu : alluvial terraces and pediment

QaI : wadi deposits

Qsb

3

0

Qt : talus fans

21 F

Qes : sand dunes

Qu : sand and gravel

QaI : wadi alluvium

Qsb : khabra

5

0

NE

Qg : semi-consolidated gravel