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How to Excavate Fossils

Contributor
By Sharon Heron
eHow Contributing Writer
(0 Ratings)
Fossilized fern imprint
Fossilized fern imprint
Dani Simmonds, Morguefile

Fossil excavation captures the imaginations of children and adults around the world. Finding a fossil and actually seeing a living organism encased in rock creates a sense of wonder at the natural world. When archeologists excavate fossils, the process involves meticulous collection of the fossil as well as documentation of the exact location of the relic. These scientists use fairly common tools to separate the fossil from the rock to prevent damage. Let's look at how to excavate fossils.

Difficulty: Moderately Challenging
Instructions

Things You'll Need:

  • Shovel
  • Trowel
  • Soft brush
  • Rock pick
  • Rock hammer

    How to Excavate Fossils

  1. Step 1

    Use the shovel to dig in an area where fossils have been found previously. The fossil will be embedded in the rock and soil that has protected it for thousands of years. Recognize that digging around an existing fossil might damage other fossilized artifacts nearby.

  2. Step 2

    Switch from the larger shovel to a small hand-held trowel. Trowels allow the archaeologist to control the movement of the shovel to prevent damage to the fossil. Gently clear dirt and loose rock from around the fossil. Avoid banging the trowel into the fossil to prevent damage.

  3. Step 3

    Brush off the exposed fossil as much as possibly to determine how embedded the artifact is in the surrounding rock. Get as clear a picture as possible to plan excavation carefully.

  4. Step 4

    Gently chip away with a small rock pick and hammer around the circumference of the fossil. You're creating an indented channel around the fossil to try to pop the fossil out of the ground without damaging it. Use the brush to gently remove debris from the fossil so you can clearly see your work area.

  5. Step 5

    Slip the rock pick to the lower edges of the channel and tap gently to break the rock beneath the fossil. Don't rush this part of the process since it's quite possible to break the fossil at this point. Work around the entire base of the fossil, brushing away debris for a clear view of the fossil. Tap until the fossil pops free.

Tips & Warnings
  • Fossil identification requires careful research about location, rock type and environment. You may want to photograph the stages of excavation and include samples of the rocks removed during excavation.
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eHow Article: How to Excavate Fossils

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