61 Questions
What distinguishes laccoliths from lopoliths in terms of shape?
Laccoliths are mushroom-shaped, while lopoliths are saucer-shaped.
Which type of intrusive body is characterized by horizontal layers between existing rock layers?
Sills
What geological process leads to the exposure of granite domes at the Earth's surface?
Erosion
In what type of regions are tors primarily found due to extensive massive igneous rock formations?
Mountain ranges
What geological process contributes to the unique formation of tors by causing vertical and horizontal joint expansion?
Chemical weathering
Which intrusive body is known for transporting magma from deep sources to or near the Earth's surface?
Pipes
What distinguishes sills from dykes in terms of their orientation relative to existing strata?
Sills are horizontal, while dykes are vertical.
How do granite domes differ from tors in terms of their overall shape?
Granite domes are smooth and rounded, while tors have core stones stacked on each other.
What is the primary process that leads to the formation of massive igneous rocks?
Cooling and solidification of magma
How do massive igneous rocks typically differ from sedimentary rocks?
Massive igneous rocks form in layers
Which type of rock formations are associated with massive igneous rocks when exposed by weathering and erosion?
Granite domes and tors
What is the characteristic composition of batholiths?
Consist of granite
Intrusive igneous rock bodies form when magma does not erupt onto the Earth's surface but instead ______ within the Earth's crust.
Intrudes
What is the key difference between intrusive and extrusive igneous rocks?
Extrusive rocks cool rapidly on the surface
Which geological concept is fundamental in studying physical geography and geology?
Formation of massive igneous structures
What distinguishes laccoliths from sills in terms of their shape?
Laccoliths are mushroom-shaped, while sills are horizontal layers.
Which geological process contributes to the formation of granite domes?
Erosion and weathering of batholiths or laccoliths
How do dykes differ from lopoliths in terms of their formation?
Dykes cut across existing strata, while lopoliths sink between sedimentary layers.
What is the primary difference between granite domes and tors?
Granite domes form from erosion and exposure of batholiths or laccoliths, while tors result from joint expansion and chemical weathering.
Which intrusive body is characterized by chimney-shaped intrusions for magma transport?
Pipes
How do sills differ from laccoliths in terms of their orientation relative to existing strata?
Sills form horizontally between existing rock layers, while laccoliths push the layers upward.
What distinguishes dykes from granite tors in terms of their shape?
Dykes are chimney-shaped intrusions, while granite tors are smooth and rounded.
Intrusive igneous rock bodies like pipes primarily serve the purpose of _____.
transporting magma from deep sources to or near the surface
What contributes to the unique formation of granite tors?
Expansion of vertical and horizontal joints due to cooling and contraction
How do laccoliths differ from pipes in terms of their shape?
Laccoliths push overlying strata upwards, while pipes transport magma from deep sources.
What distinguishes massive igneous rocks from sedimentary rocks in terms of their formation?
Igneous rocks typically do not form in layers.
Which type of intrusive body is notably composed of granite and can form extensive landforms?
Batholiths
What is the characteristic feature of tors when they are exposed on the Earth's surface?
Rounded dome-like structures
How do intrusive igneous rock bodies differ from extrusive igneous rock formations?
Intrusive bodies intrude into spaces within the Earth's crust.
What geological process leads to the formation of granite domes?
Cooling and solidification of magma
Which type of intrusive body is characterized by horizontal layers between existing rock layers?
Sills
In what way do batholiths contribute to landforms when exposed at the Earth's surface?
Development of extensive landforms
What is the primary factor that differentiates massive igneous rocks from sedimentary rocks in terms of their formation?
Formation from solidified magma
Which characteristic is associated with intrusive igneous rock bodies like batholiths?
Composed of granite
What geological process leads to the formation of granite domes?
Solidification of magma
How do laccoliths differ from sills in terms of their shape?
Intrusion into existing rock layers
What contributes to the unique formation of granite tors?
Vertical and horizontal joint expansion
In what type of regions are tors primarily found due to extensive massive igneous rock formations?
Mountain ranges
What distinguishes dykes from lopoliths in terms of their shape?
Intrusion parallel to existing strata
What distinguishes laccoliths from lopoliths in terms of their interaction with sedimentary layers?
Laccoliths push the overlying strata upwards, while lopoliths cause the lower layer to sink.
Which geological process contributes most to the unique formation of granite domes over geological timescales?
Erosion and weathering of sedimentary layers
How do sills differ from dykes in terms of their relationship with existing strata?
Sills form horizontally between strata, while dykes cut across them vertically.
Which characteristic primarily distinguishes pipes from sills in terms of their shape and function?
Pipes are chimney-shaped for magma transport, while sills are horizontal layers.
What plays a primary role in causing the distinctive features of tors, like stacked boulders and core stones?
Expansion of joints due to cooling and contracting of rock
How do laccoliths differ from pipes in their relationship with magma transport?
Laccoliths transport magma vertically, while pipes transport magma horizontally.
What geological concept is fundamental in explaining the gradual exposure of massive igneous structures like granite domes?
Erosion and weathering over time
How do dykes differ from sills in terms of their intrusion into existing rock formations?
Dykes cut across existing strata vertically, while sills form horizontally.
Why do most igneous rocks not form in layers unlike sedimentary rocks?
Due to the rapid cooling process of magma underground.
What is a key characteristic that distinguishes batholiths from other intrusive bodies?
Extensive landforms created upon exposure at the Earth's surface.
How do granite domes and tors typically differ when exposed by weathering and erosion?
Granite domes are characterized by sharp peaks while tors have rounded tops.
What contributes to the formation of intrusive igneous rock bodies like batholiths?
Solidification of magma below the Earth's surface.
What distinguishes intrusive igneous rock bodies from extrusive igneous rock formations?
Formation within existing rock formations.
Which geological process contributes significantly to the unique formation of granite tors?
Vertical joint expansion due to geological forces.
What geological process contributes to the formation of tors?
Chemical weathering in the rock below the surface
Which intrusive body is characterized by chimney-shaped intrusions for magma transport?
Pipes
What distinguishes a lopolith from a laccolith in terms of its shape?
Laccoliths push up strata, while lopoliths cause the lower layer to sink
How do sills differ from dykes in terms of their orientation relative to existing strata?
Sills are horizontally oriented, while dykes are vertical
Intrusive igneous rock bodies like pipes primarily serve the purpose of _____?
Transporting magma from deep sources
What distinguishes granite domes from tors in terms of their formation?
Granite domes arise from magma intrusion, while tors form due to erosion and weathering
What characteristic feature defines a lopolith among intrusive rock bodies?
Mushroom-shaped intrusion causing the lower layer to sink
'Erosion and exposure of batholiths or laccoliths' is associated with the formation of _____?
Granite domes
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