science

Sao Khua Formation

Sao Khua Formation is a 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 Sao Khua Formation rather than just read about it. In short: The Sao Khua Formation (Thai: หมวดหินเสาขัว) is a middle member of the Khorat Group. It consists of an alteration of pale red to yellowish-gray, fine to medium-grained sandstone and grayish-reddish brown siltstone and clay.

Key takeaways

Sao Khua Formation belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Sao Khua Formation to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sao Khua Formation from memory before moving on to harder problems.

Reference excerpt

The Sao Khua Formation (Thai: หมวดหินเสาขัว) is a middle member of the Khorat Group. It consists of an alteration of pale red to yellowish-gray, fine to medium-grained sandstone and grayish-reddish brown siltstone and clay. Rare pale red to light gray conglomerates, containing carbonate pebbles, are also characteristic of this formation. This geological formation in Thailand dates to the Early Cretaceous age, specifically the Valanginian through Hauterivian stages. Dinosaur remains are among the fossils that have been recovered from the formation.

Depositional environment Based on paleosols and lithostratigraphy, the Sao Khua Formation is believed to have been deposited in a warm to slightly cool semi-arid climate by a meandering river system. Geochemistry is indicative of a stable humid subtropical climate regime, and sedimentation is thought to have occurred in a floodplain setting which was fed by bedload-rich large meandering channels. Paleocurrent analysis suggests the sand channels at the time of deposition of the formation probably formed a braided channel environment.

Fossil content

Amphibians

Reptiles

Dinosaurs

Sauropoda indet. 1 and 2

Lizards

Pseudosuchians

Pterosaurs

Turtles

Fish

Bony fish

Cartilaginous fish

Invertebrates

Bivalves

See also List of dinosaur-bearing rock formations

References

Illustrations

Worked examples

Example 1 — a first encounter with Sao Khua Formation

Start with the simplest possible case. Write down what Sao Khua Formation claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In 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 Sao Khua 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 Sao Khua 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 Sao Khua Formation

In research: Sao Khua Formation appears in 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 Sao Khua 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: Sao Khua Formation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Conglomerate formations, Cretaceous Thailand, Hauterivian Stage, so understanding it makes those chapters shorter.
In everyday life: Look for Sao Khua 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 Sao Khua Formation in 20 minutes

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

Frequently asked questions

What is Sao Khua Formation in simple terms?

Why does Sao Khua Formation matter?

Because it connects several 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 Sao Khua 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 Sao Khua Formation.