Geological

A Feature that is used to tag the geological makeup of an area.

geological:
  value: moraine
  match: equals

Only the following values are allowed:

• moraine - Any accumulation of unconsolidated rock debris previously carried by a glacier.
• outcrop - A place where the bedrock or superficial deposits previously covered under the soil have become locally exposed.
• fold - Planar surfaces, such as sedimentary strata, that are bent or curved ("folded").
• palaeontological_site - A place with fossils.
• volcanic_lava_field - An area with volcanic lava on the ground.
• volcanic_vent - A hole through which the lava erupts.
• glacial_erratic - A boulder deposited by a glacier.
• rock_glacier - Rock glaciers are mixtures of rock and ice that move slowly downhill when active.
• giants_kettle - A regular hole in a rock created by the rotation of stones in the bed of a stream.
• meteor_crater - A crater formed by the impact of a meteor.
• hoodoo - A column of rock with a hat.
• columnar_jointing - Several hexagonal columns of rock.
• dyke - a sheet of rock that fills a fracture of a pre-existing rock body or when standing alone looking like a man made wall.
• monocline - Step-like fold in rock strata consisting of a zone of a dip comprised between ~65° and 90°.
• tor - A large, free-standing rock outcrop that rises abruptly.
• unconformity - A buried erosional surface separating two rock masses or strata of different ages.
• cone - A landform with a distinctly conical shape.
• sinkhole - A depression or hole in the ground caused by some form of collapse of the surface.
• pingo - Pingos are intrapermafrost ice-cored hills.
• inselberg - Inselberg are isolated rock hill, knob, ridge, or small mountain.
• limestone_pavement - A natural karst landform consisting of a flat surface of limestone.