earth science

Lucien Cayeux

Lucien Cayeux 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 Lucien Cayeux rather than just read about it. In short: Lucien Cayeux (26 March 1864–1 November 1944) was a French sedimentary petrographer. In 1902, he joined the l'Ecole des Mines and become a professor of geology.

Key takeaways

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

Reference excerpt

Lucien Cayeux (26 March 1864–1 November 1944) was a French sedimentary petrographer. In 1902, he joined the l'Ecole des Mines and become a professor of geology. In 1912, he was named as professor of geology at the Collège de France. He was admitted to the Académie des Sciences in 1928. He is noted for his study of sediments with the polarizing microscope, and was one of the pioneers in this field. The wrinkle ridge Dorsum Cayeux on the moon is named after him.

Bibliography "Études des Gites Minéraux de la France", 1906. "Les Minerais de Fer Oolithiques de France", 1909. "Introduction à l'étude Pétrographique des Roches Sédimentaires", 1916. "Les Roches Sédimentaires de France", 1929. "Les Phosphates de Chaux Sédimentaire de France", 1941. "Causes Anciennes et Causes Actuelles en Géologie", 1941. He also published a number of scientific papers.

External links Lucien Cayeux biography in French.

Worked examples

Example 1 — a first encounter with Lucien Cayeux

Start with the simplest possible case. Write down what Lucien Cayeux 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 Lucien Cayeux 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 Lucien Cayeux 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 Lucien Cayeux

In research: Lucien Cayeux 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 Lucien Cayeux 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: Lucien Cayeux is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1864 births, 1944 deaths, French geologists, so understanding it makes those chapters shorter.
In everyday life: Look for Lucien Cayeux 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 Lucien Cayeux in 20 minutes

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

Frequently asked questions

What is Lucien Cayeux in simple terms?

Lucien Cayeux (26 March 1864–1 November 1944) was a French sedimentary petrographer. In 1902, he joined the l'Ecole des Mines and become a professor of geology.

Why does Lucien Cayeux 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 Lucien Cayeux?

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 Lucien Cayeux.