Rock Units and Their Characteristics

The video tutorial guides students through procedure step six of rock correlation labs. It explains how to identify different rock units using symbols and reference tables. The Sherbourne unit is identified by shale with increasing sand, the Geneseo unit by black shale, the Tully unit by limestone, and the Moscow unit by a combination of shale and limestone. The tutorial emphasizes the importance of understanding rock layers and their thicknesses, while also noting that the model's scale may not be accurate.

What is the significance of rock thickness in the correlation lab?

• It indicates the mineral content of the rock.

• It is used to determine the relative ages of rocks.

• It helps in identifying the rock type.

• It determines the color of the rock.

Which symbols are used to identify shale with increasing sand in the Sherbourne unit?

• Dots and vertical lines

• Horizontal lines and dots

• Crosses and circles

• Triangles and squares

Which page of the Earth Science reference tables is used to identify rock symbols?

• Page 9

• Page 7

• Page 5

• Page 11

What is the primary characteristic of the Geneseo unit?

• It is composed of limestone.

• It contains fossils.

• It is a mix of shale and sandstone.

• It is identified by black shale.

How thick is the Tully Rock unit?

• 10 meters

• 3 meters

• 15 meters

• 5 meters

What is the main component of the Tully Rock unit?

• Limestone

• Granite

• Sandstone

• Shale

What makes the Moscow unit more complex than other units?

• It is the thickest unit.

• It is composed entirely of sandstone.

• It combines shale and limestone.

• It contains fossils.

What should you do if you have questions about the rock units?

• Guess based on the thickness.

• Use a ruler to measure the model.

• Ask your instructor.

• Refer to a different textbook.

What is the total thickness of the Moscow unit?

• 20 meters

• 10 meters

• 3 meters

• 15 meters

Why should you not rely on scaling with a ruler in this lab?

• The symbols are misleading.

• The ruler is inaccurate.

• The model is not to scale.

• The rocks are too small.