earth science

Maat Mons

Maat Mons 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 Maat Mons rather than just read about it. In short: Maat Mons is a massive shield volcano on the planet Venus. It is the planet's tallest individual mountain and volcano.

Key takeaways

Maat Mons 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 Maat Mons to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Maat Mons from memory before moving on to harder problems.

Reference excerpt

Maat Mons is a massive shield volcano on the planet Venus. It is the planet's tallest individual mountain and volcano. It rises 8 kilometres (5.0 mi) above Venus's mean planetary radius at 0.5°N 194.6°E / 0.5; 194.6, and nearly 5 km above the surrounding plains. It is named after the Egyptian goddess of truth and justice, Ma'at.

Geology Maat Mons is a large shield volcano located in Atla Regio, a site of recent tectonic rifting possibly fed by an active mantle plume. Three other neighbouring major volcanic centres are situated within Atla Regio, Ozza Mons, Ongwuti Mons, and an unnamed mons. Interpretation of their respective radial dike swarm features indicates that Maat Mons is the youngest volcanic centre within Atla Regio, fed by the same mantle plume which gave rise to the previous volcanic centres.

Structure Maat Mons has a large summit caldera, 28×31 km in size. Within the large caldera, there are at least five smaller collapse craters, up to 10 km in diameter. A chain of small craters 3–5 km in diameter extends some 40 km along the southeast flank of the volcano, but rather than indicating a large fissure eruption, they seem to also be formed by collapse. Full-resolution imagery from the Magellan probe reveals no evidence of lava flows from these craters. At least two large-scale structural collapse events seem to have occurred in the past on Maat Mons. Maat Mons is surrounded by a radial dike swarm, with grabens extending over 1,500 kilometres from the volcano's centre.

Modern activity Intriguingly for planetary geologists, atmospheric studies carried out by the Pioneer Venus probes in the early 1980s revealed a considerable variation in the concentrations of sulfur dioxide (SO2) and methane (CH4) in Venus's middle and upper atmosphere. One possible explanation for this was the injection of volcanic gases into the atmosphere by plinian eruptions at Maat Mons. More recent studies have suggested that the volcano structure, distribution of lava flows, pit craters, summit morphology, and other small-scale features are indicative of recent volcanic activity on Maat Mons. A study published by the journal Science in 2023 concluded that there has been recent volcanic activity on Maat Mons. The study analyzed images taken between 1990 and 1992 by the Magellan spacecraft. These images, taken eight months apart, displayed changes to the volcanic vent's shape and dramatically increased in size. The image also showed features that have been interpreted as lava flows.

See also Skadi Mons, former "tallest mountain" of Venus that was disproven in 2025 List of tallest mountains in the Solar System List of montes on Venus Volcanism on Venus

References

External links 3D Perspective View of Maat Mons

Illustrations

Worked examples

Example 1 — a first encounter with Maat Mons

Start with the simplest possible case. Write down what Maat Mons 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 Maat Mons 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 Maat Mons 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 Maat Mons

In research: Maat Mons 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 Maat Mons 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: Maat Mons is common in secondary-school and first-year university syllabi. It links to neighbouring topics Mountains on Venus, Polygenetic shield volcanoes, Shield volcanoes, so understanding it makes those chapters shorter.
In everyday life: Look for Maat Mons 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 Maat Mons in 20 minutes

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

Frequently asked questions

What is Maat Mons in simple terms?

Maat Mons is a massive shield volcano on the planet Venus. It is the planet's tallest individual mountain and volcano.

Why does Maat Mons 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 Maat Mons?

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 Maat Mons.