Dept. Logo

Future GEOL 333 Lab

Lab #13 (April 19) Field Trip to Coal Outcrop
Next week’s Lab will involve a geology field trip to a rock outcrop with coal. We will meet along Matthews Ave. just east of Davenport Hall (where GEOL 333 Lecture occurs) and NOT at CAB. Bring a notebook (or paper and writing pad), pencil, and pen. Notes (notebooks) will be collected at end of trip and returned before all-day trip on Saturday, April 23. This trip will be canceled ONLY if severe thunderstorms or tornadoes are forecast. Wear hiking boots or sneakers if you don’t own hiking boots. No sandals or open-toed shoes are allowed. There is only a short hike but it will involve walking next to a river and it probably will be muddy. Field trip will end at ~11:50 am (± 10 minutes). You will be dropped off at Davenport Hall.

GEOL 333 Lab #12 - Univ. of Illinois Campus Building Stones

History and Importance

  • Famous stone structures of early (and modern) civilizations include Egyptian pyramids (link #2) and Great Sphinx of Giza; Stonehenge in England; Parthenon at the Acropolis in Athens, Greece; Colosseum in Rome, Italy; Washington Monument (link #2) in Washington, D.C. (tallest stone-only structure in USA).
  • Univ. of Illinois building stones include Alma Mater statue, Altgeld Hall, roof stone, tan exterior trim stone.
  • Total use of stone, sand, and gravel per person in USA = ~8,000 kg (~8.7 tons) per year.
  • Main use = construction of roads, buildings, sidewalk, parking lots, and bridges; Average home with 6 rooms uses ~90 tons of building stone, 1 mile of Interstate highway uses ~85,000 tons of building stone
  • Types of Building Stones
  • Stone = architect's/builder's term
  • Requirements of Good Dimension Stone
    Quarries and Methods Used
  • Gravel pits (photo) = source of sediment (sand and gravel)
  • Quarry (photo #1, #2, #3 = abandoned quarry) = where stone is mined; Granite , marble and limestone are the most common rock quarries (photo of marble quarry; quarry in famous Carrara marble - used in sculptures such as Michelangelo's David; granite quarry; Indiana Limestone quarry (link #2, #3); rock quarry produces EITHER crushed stone (aggregate), which is obtained by drilling holes into rock and breaking apart with dynamite (photo of crushed rock quarry) OR intact (dimension) stone = Large blocks are created by EITHER drilling holes into rock and splitting with hammered wedge (photo) OR using thin moving wire or a flame torch.  Large blocks are cut into smaller slabs by steel saws with sand or diamond bits (photo).
  • Univ. of Illinois Campus Building Tour
  • We will view beautiful building stones used on Univ. of Illinois Campus including Alma Mater statue, Altgeld Hall, roof stone of Harker Hall, tan exterior trim stone of Harker Hall, Krannert Center for Performing Arts (scroll to bottom), Lincoln Hall steps (not in person due to travel time), Henry Administration Bldg., and others. Our goal is to identify rocks "in the field", emphasizing relations between physical properties of rock and architectural uses of building stone.