Glacially Formed Features
Terminal Moraine
Where does the vast majority of erosion happen in a river?
What is the MOHS hardness scale.
Tell me how a Glacier forms.
During cooler climate periods, snowfall accumulates and doesn't melt annually. Over time, this builds pressure and compacts the snow turning it to glacial ice.
What is Mr. Hackett's favorite hobby?
Fishing
This feature is in the shape of a "spade" or "arrow head" and can tell you the direction a glacier moved even after its gone.
Drumlin
Explain how erosion and deposition are linked in a river.
Name a soft type of bedrock commonly found in Wisconsin (below a 4 on MOHS)
Shale, Limestone, Sandstone
How does a glacier get its movement?
The accumulation center builds up and creates a slight slope. Gravity then allows the glacial ice to move away from the center.
Name one of Mr. Hackett's siblings.
Isaac or Avery
These are groves carved into the bedrock where glaciers have traveled. They can also indicate the directionality of glacial movement.
Striations
What are two key features we can use to identify the direction a river will flow?
The angle of the tributaries that flow into it. The width of the river from smaller to larger.
Name a hard type of bedrock commonly found in Wisconsin (5 or above on MOHS)
Quartzite, Dolostone/Dolomite, Granite
What is the term used to describe the phenomenon that occurs when a continental glacier melts away and the Earth's crust responds by uplifting?
Glacial Rebound
What is Mr. Hackett's wife's name?
This glacial feature is the result of meltwater flowing over the top of a glacier and depositing in a conchoidal shape. Give the name of this feature and whether this feature will be made of sorted or unsorted materials.
Kame, Sorted Materials
Give a general description of how the Wyalusing River changed into modern day Wisconsin River and Mississippi River.
The Wyalusing River flowed through WI emptying into Green Bay. When the Green Bay lobe reached its maximum, it blocked the flow of the Wyalusing. This formed a lake which eventually overflowed. The overflow formed the new pathway of the Mississippi River and the reversed flow of the Wyalusing is now the Wisconsin River.
What is the term for the phenomenon occurs when acid comes in contact with bedrock types containing calcium carbonate, causing it to bubble and produce carbon dioxide.
Effervescence
Explain why in Glacial Rebound Theory, why parts of the Earth's crust responds by increasing in elevation but other parts decrease.
What is Mr. Hackett's go to sweet? Double points if you can guess the type
Donut
This is the large opening found in the top of a glacier created by excessive melt water that works its way down to bedrock.
Moulin
What type of sediments would be found at the bottom of glacial meltwater lakes and why?
Sand and smallest particles. Because they get carried furthest by water.
Give me a summary of why the Bay of Green Bay is underwater and Door County is not.
The Bay of Green Bay has a bedrock type consisting of a mix of Dolostone, Shale, and Limestone. Door County consists of harder pure Dolostone. Because of the many advancing and retreating of glaciers, the softer bedrock was carved out and the harder dolostone resisted erosion by glaciers more.
Define the "Driftless Region" and tell me the major contributing factors to why/how it formed.
The "Driftless Region" is an area of Wisconsin, Minnesota, Iowa, and small part of Illinois that was unglaciated from the recent ice age.
This occurred from the different hardness of bedrock and its locations in the midwest. Softer bedrock located to the North and East of Wisconsin allowed the glacial lobes to follow those pathways.
Extremely hard bedrock in Wisconsin's North East slowed the advancement of the glacial lobes, with it stopping where the driftless region is located.
Lastly, Lake Superior and Lake Michigan had bevels in their bedrock formations creating a lower elevation for the lobes to follow.
Name the company Mr. Hackett used to work for before teaching.
Cru