earth science

Mokattam Formation

Mokattam Formation 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 Mokattam Formation rather than just read about it. In short: The Mokattam Formation is a Middle Eocene-aged geological formation in northern Egypt. Consisting of nummulitic marine limestone outcropping across the Mokattam Hills, it has been extensively quarried from Ancient Egypt to the present day, and represents the source material for most of the famous archeological sites of Greater Cairo, most notably the Giza pyramid complex, the Great Sphinx, and much of Historic Cairo.

Key takeaways

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

Reference excerpt

The Mokattam Formation is a Middle Eocene-aged geological formation in northern Egypt. Consisting of nummulitic marine limestone outcropping across the Mokattam Hills, it has been extensively quarried from Ancient Egypt to the present day, and represents the source material for most of the famous archeological sites of Greater Cairo, most notably the Giza pyramid complex, the Great Sphinx, and much of Historic Cairo.

The age of the formation is thought to span from the late Lutetian to the Bartonian, depending on the member (Building Stone or Giushi). However, some authors treat the Giushi Member as its own geologic formation, which would restrict the Mokattam to just the Lutetian. Numerous fossil fishes are known from this formation. Sirenian bones have been reported. This formation is the type locality of the early whales Protocetus atavus, and the sirenians Eotheroides aegyptiacus and Protosiren fraasi.

Paleobiota

Cartilaginous fish Based on Leriche (1921):

Bony fish

Reptiles

Mammals

References

Illustrations

Worked examples

Example 1 — a first encounter with Mokattam Formation

Start with the simplest possible case. Write down what Mokattam Formation 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 Mokattam Formation 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 Mokattam Formation 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 Mokattam Formation

In research: Mokattam Formation 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 Mokattam Formation 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: Mokattam Formation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bartonian Stage, Eocene Series of Africa, Geologic formations of Egypt, so understanding it makes those chapters shorter.
In everyday life: Look for Mokattam Formation 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 Mokattam Formation in 20 minutes

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

Frequently asked questions

What is Mokattam Formation in simple terms?

Why does Mokattam Formation 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 Mokattam Formation?

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 Mokattam Formation.