3D
Terroir · Bordeaux in 3D
Margaux in 3D
In 3D
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How IGN measured this relief: 99.6% airborne laser (LiDAR), error under 30 cm; 0.4% aerial photos taken in winter, error under 70 cm.
The formations of the geological map, from the largest area of the block to the smallest (25)
- Fvb(G) Hautes terrasses (RG Garonne) - Terrasse de Martillac (type 2) indifférenciée et terrasse d'ArsacIce age river terraces: sand, gravel, pebbles; 25.8% of the block
- CFp Formations superficiellesSlope wash and cover; 13.6% of the block
- Ft(Bn) Formation de BelinLandes sand and the oldest river deposits; 12.6% of the block
- Fy3-z Alluvions subactuelles à actuelles indiféernéciées (sic)River and estuary deposits of today; 12.4% of the block
- Fva(G) Très hautes terrasses (RG Garonne) - Terrasse de Léognan (type 1) indifférenciée et terrasse de
Listrac Ice age river terraces: sand, gravel, pebbles; 11.4% of the block - FMy3-z Schorre actuel et fossile de l'Estuaire de la GirondeRiver and estuary deposits of today; 6.8% of the block
- Fwb(G) Moyennes terrasses (RG Garonne) - Terrasses de Léognan, terrasse de Martillac et terrasse de St Selve indifférenciés (type 3 à 5) (Esltérien - "Mindel")Ice age river terraces: sand, gravel, pebbles; 5.9% of the block
- Mz Slikke actuel de l'estuaire de la GirondeRiver and estuary deposits of today; 3.9% of the block
- g1-As Calcaire à AstériesStarfish limestone and marine marls; 2% of the block
- SLb Limons du BougeaisLandes sand and the oldest river deposits; 1.3% of the block
- e7b-Ms Groupe de Plassac - Marnes à sismondia occitana et ostrea bernonensis (supérieures)Older sea limestones and marls; 0.9% of the block
- e7b-A Groupe de Plassac - Faciès régréssif d'Artigues, faciès à AnomiesOlder sea limestones and marls; 0.8% of the block
- g1-Ar Calcaire à ArchiacinaStarfish limestone and marine marls; 0.8% of the block
- e7-g1 Molasses du Fronsadais indifférenciéesMolasses: sands and clays of old rivers and lakes; 0.6% of the block
- g1-Ml Marnes à LongirostrisStarfish limestone and marine marls; 0.4% of the block
- g1-Ac Formation de Castillon - Argiles Vertes de Castillon (et formation de la Bessède)Lake limestones and clays; 0.2% of the block
- e7a-Ce Groupe de Plassac - Calcaires de St EstepheOlder sea limestones and marls; 0.1% of the block
- e7a-P Groupe de Plassac - Calcaire de PlassacLake limestones and clays; 0.1% of the block
- e7b-C Groupe de Plassac - CalcareniteOlder sea limestones and marls; 0.1% of the block
- e6b-Ac Groupe de Plassac - Argiles à ostrea cucullarisOlder sea limestones and marls; 0.1% of the block
- e7a-Mb Groupe de Plassac - Marnes à ostrea bersonensis (inférieures)Older sea limestones and marls; 0.1% of the block
- e7a-Mp Groupe de Plassac - Molasse de PlassacMolasses: sands and clays of old rivers and lakes; 0.1% of the block
- e6a Marnes de
Listrac Older sea limestones and marls; under 0.1% of the block - e5c(2) Calcaire de
Listrac Older sea limestones and marls; under 0.1% of the block - e7b-G Groupe de Plassac - Grès à AnomiesOlder sea limestones and marls; under 0.1% of the block
The layers under the surface, in The Descent:
Drag to turn, or use 2 fingers on a touch screen; pinch or use the mouse wheel to zoom. Tap a formation, a borehole or the list.
Sources: IGN, RGE ALTI 5 m, Gironde, edition of April 19, 2021, Licence Ouverte 2.0; BRGM, BD Charm-50, Gironde (GEO050K_HARM_033), Licence Ouverte 2.0; INRAE, Référentiel Régional Pédologique de la Gironde à 1/250 000 (Richer de Forges 2020, doi 10.15454/6BX5D7), Licence Ouverte Etalab 2.0; unit outlines from IGN’s Géoplateforme; INAO, délimitation parcellaire des AOC viticoles, file of October 12, 2026, Licence Ouverte; BRGM, Banque du sous-sol (BSS), Gironde export; logs as printed in the BRGM notices at 1/50,000; API Géo (geo.api.gouv.fr): town halls and commune names; IGN Géoplateforme (data.geopf.fr): SCAN EM 40K, BD ORTHO Historique, BD ORTHO; Licence Ouverte.
The height of each formation
The height above sea level of the land where each formation of BRGM’s geological map comes to the surface in this block, from IGN’s RGE ALTI heights read every 10 m.
| Code | Formation, as printed | Family | Share of the block | Median height | 8 tenths between |
|---|---|---|---|---|---|
| Fvb(G) | Hautes terrasses (RG Garonne) - Terrasse de Martillac (type 2) indifférenciée et terrasse d'Arsac | Ice age river terraces: sand, gravel, pebbles | 25.8% | 19 m | 13 to 24 m |
| CFp | Formations superficielles | Slope wash and cover | 13.6% | 13 m | 5 to 28 m |
| Ft(Bn) | Formation de Belin | Landes sand and the oldest river deposits | 12.6% | 40 m | 26 to 46 m |
| Fy3-z | Alluvions subactuelles à actuelles indiféernéciées (sic) | River and estuary deposits of today | 12.4% | 3 m | -1 to 4 m |
| Fva(G) | Très hautes terrasses (RG Garonne) - Terrasse de Léognan (type 1) indifférenciée et terrasse de | Ice age river terraces: sand, gravel, pebbles | 11.4% | 35 m | 30 to 39 m |
| FMy3-z | Schorre actuel et fossile de l'Estuaire de la Gironde | River and estuary deposits of today | 6.8% | 4 m | 2 to 5 m |
| Fwb(G) | Moyennes terrasses (RG Garonne) - Terrasses de Léognan, terrasse de Martillac et terrasse de St Selve indifférenciés (type 3 à 5) (Esltérien - "Mindel") | Ice age river terraces: sand, gravel, pebbles | 5.9% | 10 m | 7 to 12 m |
| Mz | Slikke actuel de l'estuaire de la Gironde | River and estuary deposits of today | 3.9% | -2 m | -2 to 3 m |
| g1-As | Calcaire à Astéries | Starfish limestone and marine marls | 2% | 39 m | 17 to 61 m |
| SLb | Limons du Bougeais | Landes sand and the oldest river deposits | 1.3% | 53 m | 46 to 58 m |
| e7b-Ms | Groupe de Plassac - Marnes à sismondia occitana et ostrea bernonensis (supérieures) | Older sea limestones and marls | 0.9% | 14 m | 8 to 24 m |
| e7b-A | Groupe de Plassac - Faciès régréssif d'Artigues, faciès à Anomies | Older sea limestones and marls | 0.8% | 19 m | 13 to 25 m |
| g1-Ar | Calcaire à Archiacina | Starfish limestone and marine marls | 0.8% | 27 m | 19 to 41 m |
| e7-g1 | Molasses du Fronsadais indifférenciées | Molasses: sands and clays of old rivers and lakes | 0.6% | 23 m | 9 to 33 m |
| g1-Ml | Marnes à Longirostris | Starfish limestone and marine marls | 0.4% | 22 m | 15 to 38 m |
| g1-Ac | Formation de Castillon - Argiles Vertes de Castillon (et formation de la Bessède) | Lake limestones and clays | 0.2% | 27 m | 19 to 37 m |
| e7a-Ce | Groupe de Plassac - Calcaires de St Estephe | Older sea limestones and marls | 0.1% | 10 m | 8 to 27 m |
| e7a-P | Groupe de Plassac - Calcaire de Plassac | Lake limestones and clays | 0.1% | 22 m | 6 to 25 m |
| e7b-C | Groupe de Plassac - Calcarenite | Older sea limestones and marls | 0.1% | 18 m | 15 to 30 m |
| e6b-Ac | Groupe de Plassac - Argiles à ostrea cucullaris | Older sea limestones and marls | 0.1% | 23 m | 22 to 25 m |
| e7a-Mb | Groupe de Plassac - Marnes à ostrea bersonensis (inférieures) | Older sea limestones and marls | 0.1% | 22 m | 21 to 26 m |
| e7a-Mp | Groupe de Plassac - Molasse de Plassac | Molasses: sands and clays of old rivers and lakes | 0.1% | 7 m | 4 to 9 m |
The appellations
The AOC delimited areas inside the block (INAO parcel delimitation of October 12, 2026).
Haut-Médoc : 5,121 ha in the blockMargaux : 1,874 ha in the blockMoulis-en-Médoc : 803 ha in the blockListrac-Médoc : 340 ha in the block
The measured lines
The sections of the appellation pages that run through the block. In the 3D view, each one cuts the block.
Margaux , west to east, 5.3 kmMoulis , west to east, 3.5 kmCôtes de Bourg , west to east, 12.9 km (the part inside the block)
Boreholes with a printed log
BRGM holds a verified log for 27 boreholes in this block.
The boreholes in this block whose log BRGM printed, layer by layer, in the notices of its 1/50,000 geological maps. Each log is given as printed.
07796X0075/F3 · Bayon-sur-Gironde; top of the hole at 6 m above sea level
- Quaternary: 0 to 23.8 m (Quaternaire)
- early Oligocene: 23.8 to 34 m (Oligocène inférieur)
- late Eocene: 34 to 85 m (Éocène supérieur)
- middle Eocene: 85 to 111 m (Éocène moyen (formation de
Blaye ))
BRGM, notice 0779, p. 43
07795X0009/F ·
- Quaternary: 0 to 9.6 m (Quaternaire)
- late Eocene: 9.6 to 32.6 m (Éocène supérieur)
- middle Eocene: 32.6 to 130.2 m (Éocène moyen)
BRGM, notice 0779, p. 42
07795X0013/F1 ·
- Quaternary and middle Eocene, printed together: 0 to 54.4 m (Quaternaire + Éocène moyen)
- middle Eocene: 54.4 to 96.2 m (Éocène moyen (formation de
Blaye )) - Sables inférieurs, base of the middle Eocene: 96.2 to 124.5 m (Sables inférieurs)
BRGM, notice 0779, p. 42
07795X0015/F ·
- Quaternary: 0 to 11 m (Quaternaire)
- late Eocene: 11 to 38.7 m (Éocène supérieur)
- middle Eocene: 38.7 to 72.1 m (Éocène moyen)
BRGM, notice 0779, p. 42
The soils
The units of the soil map of the Gironde at 1/250,000, from the largest area of the block to the smallest. Each unit groups several soil types.
- UCS 109 SOLS PROFONDS, SABLEUX, SUR GRAVES DU MEDOC: 24.4%
- UCS 62 LANDE HUMIDE: 21.8%
- UCS 110 SOLS ISSUS DU RECOUVREMENT DES GRAVES DU MEDOC PAR DU SABLE DES LANDES: 17.2%
- UCS 14 PALUS DE L'ESTUAIRE DE LA GIRONDE: 9%
- UCS 108 COMPLEXE SABLEUX SUR ARGILE A GRAVIERS GROSSIERS DU MEDOC: 7.7%
- UCS -4 COURS D'EAU: 7.4%
- UCS 16 DEPRESSIONS TOURBEUSES DE L'ESTUAIRE DE LA GIRONDE: 2.9%
- UCS 9 SOLS DES ILES DE LA GIRONDE: 2.7%
- UCS 76 SOLS CALCAIRES PLUS OU MOINS MINCES SUR CALCAIRES DU BLAYAIS ET DU BOURGEAIS: 2.2%
- UCS 77 SOLS FAIBLEMENT LESSIVES PLUS OU MOINS HYDROMORPHES DU BLAYAIS ET DU BOURGEAIS: 1.8%
- UCS 107 COMPLEXE DE SOLS CALCI-MAGNESIQUES SUR MARNES DU MEDOC: 1.7%
- UCS 15 PALUS HUMIDES DE L'ESTUAIRE DE LA GIRONDE: 0.6%
The other blocks
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