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Structural basin

Structural basin is a engineering 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 Structural basin rather than just read about it. In short: A structural basin is a large-scale structural formation of rock strata formed by tectonic warping (folding) of previously flat-lying strata into a syncline fold. They are geological depressions, the inverse of domes.

Structural basin — main illustration
Structural basin — illustration

Key takeaways

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

Reference excerpt

A structural basin is a large-scale structural formation of rock strata formed by tectonic warping (folding) of previously flat-lying strata into a syncline fold. They are geological depressions, the inverse of domes. Elongated structural basins are a type of geological trough. Some structural basins are sedimentary basins, aggregations of sediment that filled up a depression or accumulated in an area; others were formed by tectonic events long after the sedimentary layers were deposited. Basins may appear on a geologic map as roughly circular or elliptical, with concentric layers. Because the strata dip toward the center, the exposed strata in a basin are progressively younger from the outside in, with the youngest rocks in the center. Basins are often large in areal extent, often hundreds of kilometers across. Structural basins are often important sources of coal, petroleum, and groundwater.

Examples

Europe Hampshire Basin, United Kingdom London Basin, United Kingdom Paris Basin, France Permian Basin, Poland, northern Germany, Denmark, the Netherlands, the North Sea, and Scotland Turgay Basin, Kazakhstan

North America

Canada Hudson Bay

Trinidad and Tobago Southern Basin, Trinidad

United States Albuquerque Basin, New Mexico Appalachian Basin, Eastern United States Big Horn Basin, Wyoming Black Warrior Basin, Alabama and Mississippi Delaware Basin, Texas and New Mexico Denver Basin, Colorado Illinois Basin, Illinois Los Angeles Basin, California Michigan Basin, Michigan North Park Colorado Basin Paradox Basin, Utah and Colorado Permian Basin, Texas and New Mexico Piceance Basin, Colorado Powder River Basin, Wyoming and Montana Raton Basin, Colorado and New Mexico Sacramento Basin, California San Juan Basin, New Mexico and Colorado Uinta Basin, Utah Williston Basin, Montana and North Dakota Wind River Basin, Wyoming

Oceania

Australia

Amadeus Basin Bowen Basin Cooper Basin Galilee Basin Great Artesian Basin Wilpena Pound

South America Chaco Basin, Argentina, Bolivia and Paraguay Magallanes Basin, Chile Neuquén Basin, Argentina and Chile Paraná Basin, Argentina, Brazil, Paraguay and Uruguay Llanos Basin, Colombia

See also Drainage basin Fold belt

References

General references Monroe, James S., and Reed Wicander. The Changing Earth: Exploring Geology and Evolution. 2nd ed. Belmont: Wadsworth Publishing Company, 1997. ISBN 0-314-09577-2

Illustrations

Structural basin: Geologic provinces of the world (USGS).mw-parser-output .col-begin{border-collapse:collapse;padding:0;color:inherit;width:100%;border:0;margin:0}.mw-parser-output .col-begin-small{font-size:90%}.mw-parser-output .col-break{vertical-align:top;text-align:left}.mw-parser-output .col-break-2{width:50%}.mw-parser-output .col-break-3{width:33.3%}.mw-parser-output .col-break-4{width:25%}.mw-parser-output .col-break-5{width:20%}@media(max-width:720px){.mw-parser-output .col-begin,.mw-parser-output .col-begin>tbody,.mw-parser-output .col-begin>tbody>tr,.mw-parser-output .col-begin>tbody>tr>td{display:block!important;width:100%!important}.mw-parser-output .col-break{padding-left:0!important}} .mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{}  Shield   Platform   Orogen   Basin   Large igneous province   Extended crust Oceanic crust:  0–20 Ma   20–65 Ma   >65 Ma
Geologic provinces of the world (USGS).mw-parser-output .col-begin{border-collapse:collapse;padding:0;color:inherit;width:100%;border:0;margin:0}.mw-parser-output .col-begin-small{font-size:90%}.mw-parser-output .col-break{vertical-align:top;text-align:left}.mw-parser-output .col-break-2{width:50%}.mw-parser-output .col-break-3{width:33.3%}.mw-parser-output .col-break-4{width:25%}.mw-parser-output .col-break-5{width:20%}@media(max-width:720px){.mw-parser-output .col-begin,.mw-parser-output .col-begin>tbody,.mw-parser-output .col-begin>tbody>tr,.mw-parser-output .col-begin>tbody>tr>td{display:block!important;width:100%!important}.mw-parser-output .col-break{padding-left:0!important}} .mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{}  Shield   Platform   Orogen   Basin   Large igneous province   Extended crust Oceanic crust:  0–20 Ma   20–65 Ma   >65 Ma
Structural basin: Wilpena Pound structural basin in South Australia
Wilpena Pound structural basin in South Australia
Structural basin: Wilpena Pound structural basin
Wilpena Pound structural basin

Worked examples

Example 1 — a first encounter with Structural basin

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

In research
Structural basin appears in engineering 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 Structural basin 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
Structural basin is common in secondary-school and first-year university syllabi. It links to neighbouring topics Depressions (geology), Structural basins, Structural geology, so understanding it makes those chapters shorter.
In everyday life
Look for Structural basin 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 Structural basin in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Structural basin means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Structural basin out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Structural basin in simple terms?

A structural basin is a large-scale structural formation of rock strata formed by tectonic warping (folding) of previously flat-lying strata into a syncline fold. They are geological depressions, the inverse of domes.

Why does Structural basin matter?

Because it connects several engineering 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 Structural basin?

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 Structural basin.

Tags

  • Depressions (geology)
  • Structural basins
  • Structural geology

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