earth science

Ukureyskaya Formation

Ukureyskaya 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 Ukureyskaya Formation rather than just read about it. In short: The Ukureyskaya Formation, also referred to as the Ukurey Formation, is a geological formation in Zabaykalsky Krai, part of the Russian Far East. It is made up of Middle Jurassic and Late Jurassic layers.

Key takeaways

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

Reference excerpt

The Ukureyskaya Formation, also referred to as the Ukurey Formation, is a geological formation in Zabaykalsky Krai, part of the Russian Far East. It is made up of Middle Jurassic and Late Jurassic layers. It covers large areas around Kulinda.

History The Ukureyskaya Formation was mentioned by Sinitsa & Starukhina (1986), and was first discovered by Sofia M. Sinitsa and her team from the Russian Academy of Sciences before being excavated in 2010 by a group of Russian and Belgian palaeontologists; during this time, the holotype of Kulindadromeus zabaikalicus was discovered. Excavations wrapped up in 2013 or 2014.

Description The volcanic ash layers of the Ukureyskaya Formation form a Konservat-Lagerstätte with an exceptional preservation, and it likely represents a nearshore lacustrine or estuarine-deltaic environment similar to the Yixian Formation. In total, two bone beds were identified during the excavations that took place between 2010 and 2013/14; Bonebed 4 is older than Bonebed 3.

Age Sinitsa & Starukhina (1986) and Sinitsa (2011) suggested that the Ukureyskaya Formation dated to the Late Jurassic-Early Cretaceous. Godefroit et al. (2014) and Alivanov & Saveliev (2014) have suggested that as a whole, the Ukureyskaya Formation dates to the Bajocian-Tithonian, while more recent dating work by Cincotta et al. (2019) suggests that the layers containing the remains of Kulindadromeus are Bathonian in age.

Paleofauna

References

Worked examples

Example 1 — a first encounter with Ukureyskaya Formation

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

In research: Ukureyskaya 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 Ukureyskaya 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: Ukureyskaya Formation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Asian geologic formation stubs, Bajocian Stage, Bathonian Stage, so understanding it makes those chapters shorter.
In everyday life: Look for Ukureyskaya 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 Ukureyskaya Formation in 20 minutes

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

Frequently asked questions

What is Ukureyskaya Formation in simple terms?

Why does Ukureyskaya 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 Ukureyskaya 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 Ukureyskaya Formation.