Tasa Graphic Arts, Inc.

Tasa Graphic Arts, Inc.

1210B Salazar Road  -  Taos, NM USA 87571
Phone: (800) 293-2725 or (575) 758-5535  -  Fax: (575) 758-5536
E-mail:  info@tasagraphicarts.com

Earth's Dynamic Surface
Weathering and Soils Computer Lab Exercise

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Name:

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1)

Comparing basalts from New Mexico and Maryland, why do they look different?

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2)

What influences how rocks weather?

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3)

Why did El Morro engravings last so long?

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4)

What tombstones preserve inscriptions the worst over time?

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5)  Why?

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6) What would be the best tombstone rock type?

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 7) What is physical weathering?

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8) What is chemical weathering?

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  Frost Wedging
   9)  What happens in parallel cracks in rock when water gets in?

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  Exfoliation
  10)  What is exfoliation?

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  11)  How does it happen?

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  Dissolution
  12)  What is dissolution?

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  13)  What is the name of the most common rock that easily dissolves?

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  14)  What is the chemical formula for carbonic acid?

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  15)  Define an acid.

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  16)  How do we measure acid levels?

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  Oxidation
  17)  What are the easiest rocks to oxidize?

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  Hydrolysis
  18)  What is hydrolysis?

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  19)  Name the most common type of rock that undergoes hydrolysis.

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  20)  What do the feldspars weather to?

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  Plants & Animals
  21)  What is bioturbation?

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  22)  Define a chelator.

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  23)  What do chelators move through the soil?

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  Soils
  24)  What are the 4 main soil horizons and describe them. (4pts)

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  25)  Describe the O and E horizons. (2pts)

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