Ice Structure
This is the top zone of a glacier.
What is the accumulation zone?
This is a sharp peak caused by erosion.
What is Pyramidal Horn?
If a glacier has a positive mass balance, it is:
Advancing
Retreating
Not moving
Sinking
1. Advancing
You are allowed two of these in competition.
What is a scientific calculator?
This zone is where the ice of a glacier melts and/or evaporates.
What is the ablation zone?
A lake caused by the erosion of glacial ice.
What is a tarn?
44. Is a ___________ _________ because it has steep, triangular faces divided by sharp ridges or arêtes.
Pyramidal Peak or Pyramidal Horn
This is the number of 9.5 x 11 in double-sided sheets of paper with information in competition.
What is 4?
This feature of glacial ice drains water.
What is a tubular chute (Moulins)?
This is a narrow ridge that separates two valleys.
What is an arête?
45 is a/an _______________ because it is a sharp ridge between corries.
Arêtes
This is the number of team members allowed for this event.
What is the number 2?
This is the end of the glacier (where everything starts melting)
What is the terminus (or face) of a glacier?
This is an example of an arête in Yosemite National Park.
What is Cloud Rest?
46. Is a ______________ because it is an armchair shaped hollow with steep back and sides.
Corrie (or cirque)
This is the amount of time given for this event.
What is 50 min?
This zone of ice is closest to bedrock and is under extreme pressure from surrounding ice.
What is the zone of plastic?
A large buildup of powdered sediments at the front of a glacier.
What is a moraine?
47. Is a ____________ ________ or ___________ because water has gathered in the hollow in the floor of the corrie.
Corrie Lochan, Tarn (full points if they got one of them correct but in competition you would only get 1/2 credit for one answer)
This is the date when the official rules for the 2025 season will be released.
What is September 3, 2024?