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Volcanic desert

Volcanic desert is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Volcanic desert rather than just read about it. In short: A volcanic desert is an area largely or completely devoid of vegetation because of volcanic activity. The term is usually applied to larger areas such as the Highlands of Iceland, the Rangipo Desert in New Zealand or Cordón Caulle in Chile.

Volcanic desert — main illustration
Volcanic desert — illustration

Key takeaways

  • Volcanic desert belongs to earth science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Volcanic desert to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Volcanic desert from memory before moving on to harder problems.

Reference excerpt

A volcanic desert is an area largely or completely devoid of vegetation because of volcanic activity. The term is usually applied to larger areas such as the Highlands of Iceland, the Rangipo Desert in New Zealand or Cordón Caulle in Chile. Occasionally though, it is used for relatively small regions such as the Kaʻū Desert on the island of Hawaiʻi. Volcanic deserts may have enough precipitation to sustain vegetation, but due to repeated covering of tephra and acid rain after eruptions and high percolation and infiltration rates of water, vegetation is scarce. In addition to this volcanic desert shows often poor or little soil formation due to slow chemical weathering caused by cold climate or coarse tephra. This is how the Plaine des Sables, on the island of Réunion, can find itself close to the Commerson Crater, a place which holds several world records of rainfall.

Examples

Highlands of Iceland, in Iceland. Plaine des Sables, in Réunion, an overseas department of France. Kaʻū Desert, in Hawaii, United States. Pumice Desert, in the United States. Cordón Caulle in Chile. Ura-sabaku, in Japan. Bromo Sand Area, in Indonesia. Rangipo Desert, in New Zealand.

References

Illustrations

Volcanic desert: Landmannalaugar in south-central Iceland is an example of a volcanic desert
Landmannalaugar in south-central Iceland is an example of a volcanic desert
Volcanic desert: The Plaine des Sables in Réunion.
The Plaine des Sables in Réunion.

Worked examples

Example 1 — a first encounter with Volcanic desert

Start with the simplest possible case. Write down what Volcanic desert claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Volcanic desert before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Volcanic desert ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Volcanic desert

In research
Volcanic desert appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Volcanic desert in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Volcanic desert is common in secondary-school and first-year university syllabi. It links to neighbouring topics Topography stubs, Volcanic deserts, so understanding it makes those chapters shorter.
In everyday life
Look for Volcanic desert outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Volcanic desert in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Volcanic desert means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Volcanic desert out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Volcanic desert in simple terms?

A volcanic desert is an area largely or completely devoid of vegetation because of volcanic activity. The term is usually applied to larger areas such as the Highlands of Iceland, the Rangipo Desert in New Zealand or Cordón Caulle in Chile.

Why does Volcanic desert matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Volcanic desert?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Volcanic desert.

Tags

  • Topography stubs
  • Volcanic deserts

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