Preliminary Legend of the IGME5000

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Q2

Holocene

S1-2

Early - Middle Silurian

Q1

Pleistocene

S-D1

Silurian - Early Devonian

Q

Quaternary

S-D

Silurian-Devonian

N2-Q

Pliocene - Quaternary

S

Silurian

N2

Pliocene

O3-S

Late Ordovician - Silurian

N1

Miocene

O3

Late Ordovician

N

Neogene

O2

Middle Ordovician

P3-N1

Oligocene - Miocene

O1-2

Early - Middle Ordovician

P3

Oligocene

O1

Early Ordovician

P2-N2

Eocene-Pliocene

O-C

Ordovician - Carbon.

P2-3

Eocene-Oligocene

O-S

Ordovician - Silurian

P2

Eocene

O

Ordovician

P1-2

Palaeocene-Eocene

E3

Late Cambrian

P1

Palaeocene

E2-3

Middle - Late Cambrian

P-N1

Palaeogene - Miocene

E2

Middle Cambrian

P

Palaeogene

E1-2

Early - Middle Cambrian

TE

Tertiary

E1

Early Cambrian

CZ

Cenozoic

E-C

Cambrian - Carboniferous

K2-P2

Late Cret. - Eocene

E-D3

Cambrian - Late Devonian

K2-P1

Late Cret. - Palaeogene

E-S

Cambrian - Silurian

K2

Late Cretaceous

E-O

Cambrian - Ordovician

K1

Early Cretaceous

E

Cambrian

K-N

Cretaceous - Neogene

PZ-T

Palaeozoic - Triassic

K-P3

Cretaceous - Oligocene

PZ-MZ

Palaeozoic - Mesozoic

K-P2

Cretaceous - Eocene

PZ

Palaeozoic

K-P1

Cretaceous - Palaeocene

PH

Phanerozoic

K-P

Cretaceous - Palaeogene

cal

Calodomian

K-TE

Cretaceous - Tertiary

cad

Cadomian

K

Cretaceous

NP- PZ

Proterozoic III - Paleozoic

J3

Late Jurassic

NP-E

Proterozoic III - Cambrian

J2-3

Middle Jur. - Late Jur.

NP

Proterozoic III

J2

Middle Jurassic

MP-NP

Proterozoic II - III

J1-2

Early Jur. - Middle Jur.

MP

Proterozoic II

J1

Early Jurassic

PP-MP

Proterozoic I - II

J-P2

Jurassic - Eocene

PP

Proterozoic I

J-P

Jurassic - Palaeogene

PR-PZ

Proterozoic - Palaeozoic

J-K

Jurassic - Cretaceous

PR

Proterozoic

J

Jurassic

AR-E

Archaean-Cambrian

alp

Alpine

AR-PP

Archaean-Proterozoic I

T3

Late Triassic

AR

Archaean

T2-3

Middle Tri. - Late Tri.

PE-PZ

Precambrian - Palaeozoic

T2

Middle Triassic

PE

Precambrian

T1-2

Early Tri. - Middle Tri.

Petrography of plutonic rocks

T1

Early Triassic

plut

undifferentiated

T-J

Triassic - Jurassic

GR

granite group

T

Triassic

GDDR

granodiorite-diorite group

MZ

Mesozoic

SyMzR

syenite-monzonite group

R2

Late Permian

GoR

gabbro group

R1

Early Permian

ExThR

essexite-theralite group

R-K

Permian-Creaceous

PAlkR

alkaline group

R-J

Permian - Jurassic

PumR

ultramafic group

R-T

Permian - Triassic

Petrography of volcanic rocks

R-T1

Permian - Early Triassic

volc

undifferentiated

R

Permian

RyR

rhyolite group

C2-P

Late Carbon. - Palaeogene

TryR

trachyte group

C2

Late Carboniferous

AnR

andesite group

C1

Early Carboniferous

BR

basalt group

C-R

Carboniferous - Permian

VAlkR

alkaline group

C

Carboniferous

TepR

tephrite group

D3-C1

Late Dev. - Early Carbon.

VUM

ultramafic group

D3

Late Devonian

Metamorphic grade

D2-3

Middle - Late Devonian

 

undifferentiated

D2-C1

Middle Dev. - Early Carbon.

 

low grade

D2

Middle Devonian

 

medium grade

D1-2

Early - Middle Devonian

 

high grade

D1

Early Devonian

Metamorphic rocks

D - P

Devonian - Permian

META

undifferentiated

D-C

Devonian - Carboniferous

Additional units

D

Devonian

oph

ophiolite complex

var

Variscan

 

glacier

S3-4

Late - Upper Silurian

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© Federal Institute for Geosciences and Natural Resources

Last update: January 31, 2001