6.3 Review

What are clastic sedimentary rocks formed from?

• Volcanic eruptions
• Layers of shells
• Fragments of other rocks
• Precipitation from minerals

How are clastic rock fragments typically moved and collected?

• By glaciers
• By wind
• By running water
• By volcanic activity

What process helps transform loose sediments into solid clastic rock?

• Weathering
• Erosion
• Cementation
• Compaction

Which of the following is NOT a natural cement found in waters for clastic rock formation?

• Silica
• Iron oxide
• Aluminum
• Clay minerals

What type of rock texture do conglomerates have?

• Fine-grained
• Coarse-grained
• Crystalline
• Porous

Which mineral is a common ingredient in conglomerates due to its durability?

• Quartz
• Diamond
• Feldspar
• Calcite

What is the primary factor that makes sandstone porous?

• Presence of silica
• Cementation
• Space between particles
• Angular fragments

What type of rock is typically impermeable due to its small particle size?

• Shale
• Conglomerate
• Sandstone
• Breccia

How do chemical sedimentary rocks form?

• Through volcanic activity
• From the cooling of magma
• By the compaction of layers
• When minerals precipitate out of solution

What kind of sedimentary rock is rock salt?

• Clastic
• Chemical
• Organic
• Metamorphic