CH 2: Topography associated with inclined rock strata
61 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What distinguishes laccoliths from lopoliths in terms of shape?

  • Laccoliths are saucer-shaped, while lopoliths are mushroom-shaped.
  • Laccoliths are wall-like, while lopoliths are chimney-shaped.
  • Laccoliths are mushroom-shaped, while lopoliths are saucer-shaped. (correct)
  • Laccoliths are chimney-shaped, while lopoliths are wall-like.

    • Which type of intrusive body is characterized by horizontal layers between existing rock layers?

  • Sills (correct)
  • Pipes
  • Laccoliths
  • Dykes

    • What geological process leads to the exposure of granite domes at the Earth's surface?

  • Volcanic eruption
  • Chemical weathering
  • Tectonic uplift
  • Erosion (correct)

    • In what type of regions are tors primarily found due to extensive massive igneous rock formations?

    <p>Mountain ranges</p> Signup and view all the answers

    What geological process contributes to the unique formation of tors by causing vertical and horizontal joint expansion?

    <p>Chemical weathering</p> Signup and view all the answers

    Which intrusive body is known for transporting magma from deep sources to or near the Earth's surface?

    <p>Pipes</p> Signup and view all the answers

    What distinguishes sills from dykes in terms of their orientation relative to existing strata?

    <p>Sills are horizontal, while dykes are vertical.</p> Signup and view all the answers

    How do granite domes differ from tors in terms of their overall shape?

    <p>Granite domes are smooth and rounded, while tors have core stones stacked on each other.</p> Signup and view all the answers

    What is the primary process that leads to the formation of massive igneous rocks?

    <p>Cooling and solidification of magma</p> Signup and view all the answers

    How do massive igneous rocks typically differ from sedimentary rocks?

    <p>Massive igneous rocks form in layers</p> Signup and view all the answers

    Which type of rock formations are associated with massive igneous rocks when exposed by weathering and erosion?

    <p>Granite domes and tors</p> Signup and view all the answers

    What is the characteristic composition of batholiths?

    <p>Consist of granite</p> Signup and view all the answers

    Intrusive igneous rock bodies form when magma does not erupt onto the Earth's surface but instead ______ within the Earth's crust.

    <p>Intrudes</p> Signup and view all the answers

    What is the key difference between intrusive and extrusive igneous rocks?

    <p>Extrusive rocks cool rapidly on the surface</p> Signup and view all the answers

    Which geological concept is fundamental in studying physical geography and geology?

    <p>Formation of massive igneous structures</p> Signup and view all the answers

    What distinguishes laccoliths from sills in terms of their shape?

    <p>Laccoliths are mushroom-shaped, while sills are horizontal layers.</p> Signup and view all the answers

    Which geological process contributes to the formation of granite domes?

    <p>Erosion and weathering of batholiths or laccoliths</p> Signup and view all the answers

    How do dykes differ from lopoliths in terms of their formation?

    <p>Dykes cut across existing strata, while lopoliths sink between sedimentary layers.</p> Signup and view all the answers

    What is the primary difference between granite domes and tors?

    <p>Granite domes form from erosion and exposure of batholiths or laccoliths, while tors result from joint expansion and chemical weathering.</p> Signup and view all the answers

    Which intrusive body is characterized by chimney-shaped intrusions for magma transport?

    <p>Pipes</p> Signup and view all the answers

    How do sills differ from laccoliths in terms of their orientation relative to existing strata?

    <p>Sills form horizontally between existing rock layers, while laccoliths push the layers upward.</p> Signup and view all the answers

    What distinguishes dykes from granite tors in terms of their shape?

    <p>Dykes are chimney-shaped intrusions, while granite tors are smooth and rounded.</p> Signup and view all the answers

    Intrusive igneous rock bodies like pipes primarily serve the purpose of _____.

    <p>transporting magma from deep sources to or near the surface</p> Signup and view all the answers

    What contributes to the unique formation of granite tors?

    <p>Expansion of vertical and horizontal joints due to cooling and contraction</p> Signup and view all the answers

    How do laccoliths differ from pipes in terms of their shape?

    <p>Laccoliths push overlying strata upwards, while pipes transport magma from deep sources.</p> Signup and view all the answers

    What distinguishes massive igneous rocks from sedimentary rocks in terms of their formation?

    <p>Igneous rocks typically do not form in layers.</p> Signup and view all the answers

    Which type of intrusive body is notably composed of granite and can form extensive landforms?

    <p>Batholiths</p> Signup and view all the answers

    What is the characteristic feature of tors when they are exposed on the Earth's surface?

    <p>Rounded dome-like structures</p> Signup and view all the answers

    How do intrusive igneous rock bodies differ from extrusive igneous rock formations?

    <p>Intrusive bodies intrude into spaces within the Earth's crust.</p> Signup and view all the answers

    What geological process leads to the formation of granite domes?

    <p>Cooling and solidification of magma</p> Signup and view all the answers

    Which type of intrusive body is characterized by horizontal layers between existing rock layers?

    <p>Sills</p> Signup and view all the answers

    In what way do batholiths contribute to landforms when exposed at the Earth's surface?

    <p>Development of extensive landforms</p> Signup and view all the answers

    What is the primary factor that differentiates massive igneous rocks from sedimentary rocks in terms of their formation?

    <p>Formation from solidified magma</p> Signup and view all the answers

    Which characteristic is associated with intrusive igneous rock bodies like batholiths?

    <p>Composed of granite</p> Signup and view all the answers

    What geological process leads to the formation of granite domes?

    <p>Solidification of magma</p> Signup and view all the answers

    How do laccoliths differ from sills in terms of their shape?

    <p>Intrusion into existing rock layers</p> Signup and view all the answers

    What contributes to the unique formation of granite tors?

    <p>Vertical and horizontal joint expansion</p> Signup and view all the answers

    In what type of regions are tors primarily found due to extensive massive igneous rock formations?

    <p>Mountain ranges</p> Signup and view all the answers

    What distinguishes dykes from lopoliths in terms of their shape?

    <p>Intrusion parallel to existing strata</p> Signup and view all the answers

    What distinguishes laccoliths from lopoliths in terms of their interaction with sedimentary layers?

    <p>Laccoliths push the overlying strata upwards, while lopoliths cause the lower layer to sink.</p> Signup and view all the answers

    Which geological process contributes most to the unique formation of granite domes over geological timescales?

    <p>Erosion and weathering of sedimentary layers</p> Signup and view all the answers

    How do sills differ from dykes in terms of their relationship with existing strata?

    <p>Sills form horizontally between strata, while dykes cut across them vertically.</p> Signup and view all the answers

    Which characteristic primarily distinguishes pipes from sills in terms of their shape and function?

    <p>Pipes are chimney-shaped for magma transport, while sills are horizontal layers.</p> Signup and view all the answers

    What plays a primary role in causing the distinctive features of tors, like stacked boulders and core stones?

    <p>Expansion of joints due to cooling and contracting of rock</p> Signup and view all the answers

    How do laccoliths differ from pipes in their relationship with magma transport?

    <p>Laccoliths transport magma vertically, while pipes transport magma horizontally.</p> Signup and view all the answers

    What geological concept is fundamental in explaining the gradual exposure of massive igneous structures like granite domes?

    <p>Erosion and weathering over time</p> Signup and view all the answers

    How do dykes differ from sills in terms of their intrusion into existing rock formations?

    <p>Dykes cut across existing strata vertically, while sills form horizontally.</p> Signup and view all the answers

    Why do most igneous rocks not form in layers unlike sedimentary rocks?

    <p>Due to the rapid cooling process of magma underground.</p> Signup and view all the answers

    What is a key characteristic that distinguishes batholiths from other intrusive bodies?

    <p>Extensive landforms created upon exposure at the Earth's surface.</p> Signup and view all the answers

    How do granite domes and tors typically differ when exposed by weathering and erosion?

    <p>Granite domes are characterized by sharp peaks while tors have rounded tops.</p> Signup and view all the answers

    What contributes to the formation of intrusive igneous rock bodies like batholiths?

    <p>Solidification of magma below the Earth's surface.</p> Signup and view all the answers

    What distinguishes intrusive igneous rock bodies from extrusive igneous rock formations?

    <p>Formation within existing rock formations.</p> Signup and view all the answers

    Which geological process contributes significantly to the unique formation of granite tors?

    <p>Vertical joint expansion due to geological forces.</p> Signup and view all the answers

    What geological process contributes to the formation of tors?

    <p>Chemical weathering in the rock below the surface</p> Signup and view all the answers

    Which intrusive body is characterized by chimney-shaped intrusions for magma transport?

    <p>Pipes</p> Signup and view all the answers

    What distinguishes a lopolith from a laccolith in terms of its shape?

    <p>Laccoliths push up strata, while lopoliths cause the lower layer to sink</p> Signup and view all the answers

    How do sills differ from dykes in terms of their orientation relative to existing strata?

    <p>Sills are horizontally oriented, while dykes are vertical</p> Signup and view all the answers

    Intrusive igneous rock bodies like pipes primarily serve the purpose of _____?

    <p>Transporting magma from deep sources</p> Signup and view all the answers

    What distinguishes granite domes from tors in terms of their formation?

    <p>Granite domes arise from magma intrusion, while tors form due to erosion and weathering</p> Signup and view all the answers

    What characteristic feature defines a lopolith among intrusive rock bodies?

    <p>Mushroom-shaped intrusion causing the lower layer to sink</p> Signup and view all the answers

    'Erosion and exposure of batholiths or laccoliths' is associated with the formation of _____?

    <p><strong>Granite domes</strong></p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser