Godbout's Alluvial Fan
Posted by: Groundspeak Premium Member davidb1957
N 49° 19.572 W 067° 37.797
19U E 599551 N 5464621
An alluvial fan is a triangle-shaped deposit of gravel, sand, and even smaller pieces of sediment, such as silt. This sediment is called alluvium.
Waymark Code: WMMFD1
Location: Québec, Canada
Date Posted: 09/12/2014
Published By:Groundspeak Premium Member RakeInTheCache
Views: 21

Alluvial fans are usually created as flowing water interacts with mountains, hills, or the steep walls of canyons. Streams carrying alluvium can be trickles of rainwater, a fast-moving creek, a powerful river, or even runoff from agriculture or industry. As a stream flows down a hill, it picks up sand and other particles—alluvium.

The rushing water carries alluvium to a flat plain, where the stream leaves its channel to spread out. Alluvium is deposited as the stream fans out, creating the familiar triangle-shaped feature.

The narrow point of the alluvial fan is called its apex, while the wide triangle is the fan's apron. Alluvial fans can be tiny, with an apron of just a few centimeters spreading out from the trickle of a drainpipe. They can also be enormous.

Cône alluvial

Dépôt de sédiment en forme d'éventail apporté par une rivière ou un cours d'eau fortement incliné à l'endroit où il débouche dans une plaine ou une vallée.

RÉSUMÉ

Les cônes alluviaux sont des formes d’accumulation liées à une rupture de pente lorsqu’un cours d’eau émerge d’une région montagneuse et se déverse dans une plaine
alluviale. L’évolution des cônes est contrôlée par des écoulements torrentiels souvent fortement chargés en sédiments et en débris ligneux. Les risques d’inondation liés à ces formes ne peuvent être considérés à l’aide des paradigmes actuels de l’hydrologie statistique parce qu’ils dépendent fortement de la dynamique
géomorphologique du cône. Les mécanismes d’avulsion et d’aggration propres aux cônes alluviaux jouent un rôle crucial dans l’évaluation des risques.
Waymark is confirmed to be publicly accessible: yes

Parking Coordinates: N 49° 19.482 W 067° 37.855

Access fee (In local currency): .00

Requires a high clearance vehicle to visit.: no

Requires 4x4 vehicle to visit.: no

Public Transport available: no

Website reference: Not listed

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Recent Visits/Logs:
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Casper&Aero visited Godbout's Alluvial Fan 05/30/2015 Casper&Aero visited it
ORDIMIC visited Godbout's Alluvial Fan 11/01/2014 ORDIMIC visited it
MaitreJack visited Godbout's Alluvial Fan 10/13/2014 MaitreJack visited it
Cyrano-Bella visited Godbout's Alluvial Fan 09/28/2014 Cyrano-Bella visited it
davidb1957 visited Godbout's Alluvial Fan 09/14/2014 davidb1957 visited it
ROLLERS2 visited Godbout's Alluvial Fan 09/14/2014 ROLLERS2 visited it
VE2YWS visited Godbout's Alluvial Fan 09/13/2014 VE2YWS visited it

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