moulin
Ice meltwater shaft
A moulin is a nearly vertical shaft in a glacier, formed by meltwater drilling down through the ice.
These cylindrical holes can extend hundreds of feet deep, funneling surface water to the glacier's base.
The term comes from French for "mill," suggesting the churning action of descending water.
The stream disappeared into a moulin with a roar.
Deep glacial fissure
- ablationRemoval by cutting, melting
- firnYear-old compacting snow
- glacialOf frozen rivers
- seracGlacial ice pinnacle
icefall · calving · meltwater · glaciology · icecap · permafrost · cryosphere · ice sheet
Vigorous abrasive cleaning
- weatheringAtmospheric breakdown of materials
- meltwaterWater from melted ice
- siltWaterborne earth particles
- sedimentParticles settling in liquid
abrasion · deposition · outwash · karst · fissure · channel · pothole · undercutting
Glacier-deposited debris pile
- cirqueGlacier-carved mountain basin
- eskerSerpentine glacial gravel deposit
- drumlinStreamlined glacial hill
- arêteSharp mountain ridge
horn · tarn · fjord · glacial lake · kettle · outwash · till · bedrock
Exploring caves recreationally
- descentDownward slope or lineage
- expeditionOrganized exploratory journey
- rappelControlled rope descent
- headlampForward-facing vehicle light
rope · harness · subglacial · ice climbing · caving · abyss · darkness · vertical
crevasse
Deep glacial fissure
serac · icefall · calving · meltwater · glaciology · icecap · permafrost · cryosphere · ice sheet · sublimation
scouring
Vigorous abrasive cleaning
- weatheringAtmospheric breakdown of materials
- meltwaterWater from melted ice
- siltWaterborne earth particles
sediment · abrasion · deposition · outwash · karst · fissure · channel · pothole · undercutting · retreat
moraine
Glacier-deposited debris pile
- cirqueGlacier-carved mountain basin
- eskerSerpentine glacial gravel deposit
- drumlinStreamlined glacial hill
arête · horn · tarn · fjord · glacial lake · kettle · outwash · till · bedrock · valley
spelunking
Exploring caves recreationally
- descentDownward slope or lineage
- expeditionOrganized exploratory journey
- rappelControlled rope descent
headlamp · rope · harness · subglacial · ice climbing · caving · abyss · darkness · vertical · chamber
- Moulin RougeHistoric Parisian cabaret
- Moulin Rouge!Legendary Parisian cabaret hall
mill, miller, milling, milled, millstone, millinery, millpond, millwright, millefeuille