earth science

Sierra Nevada de Lagunas Bravas

Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas rather than just read about it. In short: Sierra Nevada, also known as Sierra Nevada de Lagunas Bravas, is a major ignimbrite-lava dome complex which lies in both Chile and Argentina in one of the most remote parts of the Central Andes. Activity in the complex started in Argentina and formed two stratovolcanoes.

Key takeaways

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

Reference excerpt

Sierra Nevada, also known as Sierra Nevada de Lagunas Bravas, is a major ignimbrite-lava dome complex which lies in both Chile and Argentina in one of the most remote parts of the Central Andes. Activity in the complex started in Argentina and formed two stratovolcanoes. Later, 12 or more vents formed, some with craters up to 400 metres (1,300 ft) wide. Lava flows up to 7 kilometres (4.3 mi) long with flow ridges are also found. It covers a total area of 225 km2. Radiometric dating has yielded ages of 1.7 ± 0.4 to 0.431 ± 0.012 million years ago, a lava flow from the neighbouring Azufrera Los Cuyanos volcano that is sometimes considered part of Sierra Nevada is 140,000 years old. Together with Cerro el Condor and Peinado it forms the Culampaja line, a line of volcanoes that reaches Cerro Blanco. Strong seismic attenuation is observed beneath Sierra Nevada. Hydrothermally altered rocks in Sierra Nevada may be the source of sulfate and arsenic in the Juncalito and Negro rivers, and heat sources for regional hot springs. The snowline in the area lies at 5,800 metres (19,000 ft) altitude at Cumbre del Laudo.

First ascent Sierra Nevada's main summit was one of the last 6,000-metre (20,000 ft) peaks climbed in the Andes. It was thought that its secondary summit, 6,127 metres (20,102 ft) 26°29′37″S 68°35′08″W, which sits on the border, was the highest. New measurements however show that the main summit is entirely in Argentina, 2.6 kilometres (1.6 mi) east. The complex has 9 main summits.

See also List of volcanoes in Argentina List of volcanoes in Chile

Notes

References

Sources González-Ferrán, Oscar (1995). Volcanes de Chile. Santiago, Chile: Instituto Geográfico Militar. pp. 215–220. ISBN 956-202-054-1. (in Spanish; also includes volcanoes of Argentina, Bolivia, and Peru)

Illustrations

Worked examples

Example 1 — a first encounter with Sierra Nevada de Lagunas Bravas

Start with the simplest possible case. Write down what Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas

In research: Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas 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: Sierra Nevada de Lagunas Bravas is common in secondary-school and first-year university syllabi. It links to neighbouring topics Argentina–Chile border, Atacama Region geography stubs, Catamarca Province geography stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Sierra Nevada de Lagunas Bravas 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Sierra Nevada de Lagunas Bravas” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Sierra Nevada de Lagunas Bravas in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sierra Nevada de Lagunas Bravas in simple terms?

Why does Sierra Nevada de Lagunas Bravas 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 Sierra Nevada de Lagunas Bravas?

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 Sierra Nevada de Lagunas Bravas.