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C A N D Y L A N D A Study of Ohio Topography. Tim Herrmann, Haley Todd, Justin Yeazell GEO 204 Dr. Michael Sandy April 25, 2007. Lesson Overview. Review of Previous Material Study Key Aspects of a Map Explore a Map of Ohio’s Topography

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C a n d y l a n d a study of ohio topography

CANDYLANDA Study of Ohio Topography

Tim Herrmann, Haley Todd, Justin Yeazell

GEO 204

Dr. Michael Sandy

April 25, 2007


Lesson overview
Lesson Overview

  • Review of Previous Material

  • Study Key Aspects of a Map

  • Explore a Map of Ohio’s Topography

  • Create our own Maps of Ohio’s Topography with Candy

  • Assessment


Geology bedrock map symbols
Geology Bedrock Map Symbols

  • General Political Information:

    • roads, towns, buildings, counties, borders

  • Topography:

    • Contour lines that connect areas of equal elevation

  • Water:

    • Lakes, rivers, and oceans are shown in blue.

  • Rock Formations:

    • Each rock formation has a different color.

    • Contacts between different types of rocks are shown as thin black lines, except when rock formations are separated by a fault, which is shown as a thick black line.

  • Other Requirements:

    • Title, Key, Scale, Cardinal Direction


I ce scoured bedrock landscape
Ice-Scoured Bedrock Landscape

  • “I”

  • Bedrock surface is buried under glacial sediments several hundred feet thick

  • Dissected bedrock surface – result of erosion before, during, and after glaciation

  • Smooth buried-bedrock surface is result of scouring by glacial ice moving westward out of the Lake Erie basin


W ater eroded bedrock landscape
Water-Eroded Bedrock Landscape

  • “W”

  • Large volumes of ice flowed through this area

  • large rivers and creeks that flow through wide valleys


G rand river lobe
Grand River Lobe

  • “G”

  • distinctly scoured bedrock surface

  • smooth north-south patterns of ice flow over the valleys


U nglaciated
Unglaciated

  • Is the southeastern part of Ohio

  • Is devoid of ice-deposited sediment (glacial till)

  • Many river valleys carried away melt water from the ice front and to the Ohio river

  • this resulted in clay and silt deposits at the bottom of lakes when ice blocked the flow of rivers


Main Teays Valley

  • Contained the Teay’s river system before and during glaciation

  • It dominated drainage patterns in Western and Southern Ohio

  • Main flow direction was North

  • Water flow was disrupted by glaciers moving southward and blocking outlets

  • Drainage ways were filled with sediment by advancing and retreating ice


Create your c a n d y l a n d
Create Your CANDYLAND

  • Be sure to include:

    • Key based on the topography map shown

      • Explain varying colors and heights

    • Title

    • Cardinal directions

    • Label each area & acronym

      • Ice-Scourged Bedrock

      • Water-Eroded Bedrock

      • Grand River Lobe

      • Unglaciated

      • Main Teays Valley



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