WorksheetsESP 3
Total questions: 45
Worksheet time: 23mins
A mineral is best defined as:
Naturally occurring inorganic solid with a specific chemical composition and crystalline structure
Any solid material found on Earth
Organic compound formed from plants
Melted rock underground
A rock is:
A liquid mixture of metals
A consolidated aggregate of one or more minerals
A single mineral
A type of fossil
The continental crust mainly consists of:
Basaltic and ultramafic rocks
Granitic and gneissic rocks
Carbonates and sandstones
Iron and nickel
The three major rock types are:
Volcanic, intrusive, and evaporite
Igneous, sedimentary, and metamorphic
Granite, basalt, and sandstone
Felsic, mafic, and ultramafic
What are sediments?
Crystallized minerals from magma
Unconsolidated clastic particles like sand or mud
Organic compounds
Metamorphic layers
Igneous rocks form by:
Erosion and deposition
Solidification of magma
Compaction and cementation
Heat and pressure on existing rocks
The process by which different minerals crystallize at different temperatures during cooling is called:
Differentiation
Metamorphism
Lithification
Sedimentation
The first mineral to crystallize in Bowen’s Reaction Series is:
Quartz
Olivine
Biotite
Feldspar
Minerals rich in iron and magnesium are called:
Felsic
Mafic
Ultramafic
Silicic
Felsic minerals are rich in:
Iron and magnesium
Silica, aluminum, sodium, and potassium
Carbon and sulfur
Nickel and cobalt
Two types of igneous rocks are:
Sedimentary and metamorphic
Volcanic (extrusive) and plutonic (intrusive)
Organic and clastic
Foliated and non-foliated
Which igneous rock cools slowly beneath Earth’s surface?
Basalt
Granite
Andesite
Rhyolite
Which igneous rock cools rapidly on Earth’s surface?
Gabbro
Basalt
Granite
Diorite
Vesicular basalt forms when:
Magma has high silica
Magma has low viscosity and gas bubbles get trapped
Magma cools slowly underground
Pressure is constant
Mt. Kinabalu in Malaysia is made of:
Basaltic lava
Plutonic granite uplifted and exposed
Volcanic ash
Gneissic layers
Peridotite is:
Felsic intrusive rock
Ultramafic rock forming most of the upper mantle
Sedimentary rock
Metamorphic rock
Sedimentary rocks form through:
Cooling of magma
Lithification of sediments
Melting of rocks
High pressure and heat
The process that turns sediments into solid rock is called:
Melting
Lithification
Weathering
Subduction
Clastic sedimentary rocks are formed from:
Plant remains
Fragments of pre-existing rocks
Crystals from solution
Volcanic glass
Clastic rocks make up approximately:
25% of sedimentary rocks
50%
85%
100%
Examples of clastic sedimentary rocks include:
Coal and chert
Limestone and dolomite
Sandstone, siltstone, and shale
Granite and basalt
The main processes in lithification are:
Erosion and transportation
Compaction and cementation
Crystallization and melting
Evaporation and precipitation
Coal is an example of:
Chemical sedimentary rock
Organic sedimentary rock
Clastic sedimentary rock
Volcanic rock
Chert is composed mainly of:
Calcite
Silica (quartz)
Iron oxide
Carbon
Flint is:
A dark variety of chert
Type of basalt
Foliated rock
Volcanic glass
Rock salt forms through:
Cooling of magma
Precipitation of dissolved salts during evaporation
Cementation of sand
Metamorphism
The most common chemical sedimentary rock is:
Gypsum
Dolomite
Limestone
Rock salt
Dolomite forms when:
Silica replaces calcium
Magnesium replaces calcium in limestone
Saltwater evaporates
Plant remains decay
Chemical formula of dolomite:
CaCO₃
CaMg(CO₃)₂
MgSiO₃
CaO
Bioclastic sedimentary rocks are formed from:
Plant matter
Carbonate shells and organic fragments
Volcanic lava
Evaporated salts
Examples of bioclastic rocks include:
Chalk, coquina, and limestone
Sandstone, shale, and mudstone
Dolomite and halite
Granite and basalt
Bedding or stratification refers to:
Folding of rocks
Layering during sediment deposition
Melting and cooling
Metamorphic banding
Cross-bedding indicates:
Rapid erosion
Shifting wind or water currents
Folding under pressure
Fault displacement
Ripple marks are formed by:
Chemical precipitation
Wind or moving water
Earthquakes
Magma movement
Graded bedding occurs when:
Grain size decreases upward in a layer
Rock fractures along layers
Minerals align
Crystals grow from solution
Mud cracks form due to:
Rapid cooling of lava
Shrinkage of drying mud
Compaction
Subduction
Fossils are:
Crystals formed under pressure
Remains or traces of past life preserved in rocks
Volcanic deposits
Layers of clay minerals
Metamorphism means:
Weathering of rocks
Melting into magma
Changing form of pre-existing rocks by heat and pressure
Sediment compaction
The parent rock before metamorphism is called:
Source rock
Protolith
Substrate
Nucleus
Metamorphism can change:
Only igneous rocks
Only sedimentary rocks
Any rock type
Only volcanic rocks
Foliation in metamorphic rocks is caused by:
Equal pressure in all directions
Differential and compressive stress
Melting
Magnetic forces
The two main types of metamorphism are:
Contact and regional
Dynamic and hydrothermal
Thermal and volcanic
Static and compressional
Regional metamorphism occurs under:
Low pressure and temperature
High pressure and temperature over large areas
Contact with magma only
Chemical weathering
Contact metamorphism occurs when:
Magma intrudes surrounding rocks
Rocks are buried deeply
Water alters minerals
Pressure is uniform
The metamorphic zone surrounding an intrusion is called:
Facies
Halo or aureole
Rift
Vein
