earth science

Sierra Chichinautzin

Sierra Chichinautzin 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 Chichinautzin rather than just read about it. In short: The Sierra Chichinautzin volcanic field, also known as El Pedegral, is located in the Trans-Mexican Volcanic Belt, approximately 350 kilometres (220 mi) from where the Cocos Plate subducts beneath the North American Plate. Description According to The Smithsonian Institution's Global Volcanism Program, "The massive Chichinautzin volcanic field covers a 90 kilometres (56 mi) long, East-West trending area immediately…

Key takeaways

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

Reference excerpt

The Sierra Chichinautzin volcanic field, also known as El Pedegral, is located in the Trans-Mexican Volcanic Belt, approximately 350 kilometres (220 mi) from where the Cocos Plate subducts beneath the North American Plate.

Description According to The Smithsonian Institution's Global Volcanism Program, "The massive Chichinautzin volcanic field covers a 90 kilometres (56 mi) long, East-West trending area immediately south of central Mexico City." It is located within the Trans-Mexican Volcanic Belt, and is less than 40 km directly south of Mexico City. The Sierra Chichinautzin, formed primarily of overlapping small cinder cones and shield volcanoes, creates a broad topographic barrier at the southern end of the Basin of Mexico that extends from the eastern flank of Nevado de Toluca to the western flank of Iztaccihuatl volcano. The volcanic field contains more than 220 Pleistocene-to-Holocene monogenetic vents. The best-known eruption occurred about 1670 radiocarbon years ago from the Xitle scoria cone, NE of the Volcán Ajusco lava-dome complex, which at 3,930 metres (12,890 ft) forms the highest peak of the Sierra Chichinautzin. The Xitle eruption produced a massive basaltic tube-fed lava flow that covered agricultural lands as well as pyramids and other structures of Cuicuilco and adjacent prehispanic urban centers. The southern part of Mexico City and the National University of Mexico, in the greater El Pedegral district, lie atop the distal end of the 13 kilometres (8.1 mi) long lava flow.

See also List of volcanoes in Mexico List of volcanic fields Sierra de Ajusco-Chichinauhtzin

References

Illustrations

Worked examples

Example 1 — a first encounter with Sierra Chichinautzin

Start with the simplest possible case. Write down what Sierra Chichinautzin 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 Chichinautzin 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 Chichinautzin 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 Chichinautzin

In research: Sierra Chichinautzin 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 Chichinautzin 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 Chichinautzin is common in secondary-school and first-year university syllabi. It links to neighbouring topics Landforms of Mexico City, Landforms of the State of Mexico, Milpa Alta, so understanding it makes those chapters shorter.
In everyday life: Look for Sierra Chichinautzin 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 Sierra Chichinautzin in 20 minutes

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

Frequently asked questions

What is Sierra Chichinautzin in simple terms?

Why does Sierra Chichinautzin 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 Chichinautzin?

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 Chichinautzin.