Table 1 Altitudes and related ages of the landforms observed throughout the 20 deltaic complexes investigated along the Québec North Shore and used to reconstruct the pattern of the Laurentide Ice Sheet margin retreat presented in Fig. 4.

From: Reconstructing ice-margin retreat using delta morphostratigraphy

Deltaic complex

Altitude

Ages (kyr cal BP)

Depositional system

Latitude

Longitude

Les Escoumins

120

12.5

Ice-contact system

N48°21′

W69°23′

60

9.5

Glaciofluvial delta

 

Longuerive

135

11

Ice-contact system

N48°34′

W69°17′

Portneuf

90

10.1

Glaciofluvial delta

N48°38′

W69°06′

Sault-au-Cochon

140

11

Ice-contact system

N48°42′

W69°05′

90

10.1

Glaciofluvial delta

 

Betsiamites

30

8

Glaciofluvial delta

N48°54′

W68°39′

Outardes

15

7.5

Glaciofluvial delta

N49°08′

W68°17′

Manicouagan

15

7.5

Glaciofluvial delta

N49°08′

W68°17′

Godbout

60

9.5

Glaciofluvial delta

N49°19′

W67°36′

Pentecôte

103

10.2

Ice-contact system

N49°46′

W67°11′

Walker

103

11.1

Ice-contact system

N49°56′

W67°02′

Pasteur

100

10.9

Ice-contact system

N50°02′

W66°57′

Ste. Marguerite

50

8.2

Glaciofluvial delta

N50°10′

W66°38′

Sept-Îles

130

10.8

Ice-contact system

N50°15′

W66°09′

42

7.3

Glaciofluvial delta

 

Manitou

110

12.5

Ice-contact system

N50°18′

W65°15′

Riv. Au Tonnerre

110

12.5

Ice-contact system

N50°17′

W64°55′

Magpie

76

9.7

Ice-contact system

N50°20′

W64°25′

St. Jean

50

8

Glaciofluvial delta

N50°18′

W64°11′

Romaine

20

7.5

Glaciofluvial delta

N50°17′

W64°26′

Aguanish

30

8.5

Glaciofluvial delta

N50°13′

W62°07′

Natashquan

10

7.5

Glaciofluvial delta

N50°09′

W61°46′

  1. Ages of the “Ice-contact system” relate to their abandonment succeeding to a glacial stillstand and ages of “Glaciofluvial delta” refer to the melting of the Laurentide Ice Sheet margin out from the drainage basin of the related delta.