earth science

White Sea Rift System

White Sea Rift System 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 White Sea Rift System rather than just read about it. In short: The White Sea Rift System is a complex of rifts manifested as numerous individual grabens located chiefly in the White Sea but including onshore areas and a strip of the Barents Sea. The rifts run in a subparallel manner from northwest to southeast where the rift system continues under the East European Platform.

Key takeaways

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

Reference excerpt

The White Sea Rift System is a complex of rifts manifested as numerous individual grabens located chiefly in the White Sea but including onshore areas and a strip of the Barents Sea. The rifts run in a subparallel manner from northwest to southeast where the rift system continues under the East European Platform. The system or complex originated due to extensional tectonics acting during the Middle to Late Riphean in the Proterozoic. This tectonic environment is believed to have been related to the break-up of the ancient supercontinent Palaeopangea. During the Riphean the graben structures were filled by Jotnian sediments. During the Middle Paleozoic the rift system was reactivated resulting in intrusion of alkaline magmas. In the Late Cenozoic the rift system was reactivated again resulting in the formation of the modern White Sea. The White Sea Rift System includes the following rifts:

the Onega–Kandalaksha Rift (its northwestern graben is known as the Kandalaksha Trough or Kandalaksha Graben). The Kandalksha graben is about 220 km long and 60 km broad. Its southwestern slopes are steeper than its northwestern slopes. the Kerets–Leshukonsky Rift (including the Kerets Graben). the Barents Rift. Many of the grabens are filled with Jotnian sediments.

Notes

References

Worked examples

Example 1 — a first encounter with White Sea Rift System

Start with the simplest possible case. Write down what White Sea Rift System 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 White Sea Rift System 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 White Sea Rift System 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 White Sea Rift System

In research: White Sea Rift System 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 White Sea Rift System 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: White Sea Rift System is common in secondary-school and first-year university syllabi. It links to neighbouring topics Geology of European Russia, Mesoproterozoic, Mesoproterozoic rifts and grabens, so understanding it makes those chapters shorter.
In everyday life: Look for White Sea Rift System 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 White Sea Rift System in 20 minutes

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

Frequently asked questions

What is White Sea Rift System in simple terms?

Why does White Sea Rift System 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 White Sea Rift System?

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 White Sea Rift System.