earth science

Keathley Canyon

Keathley Canyon 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 Keathley Canyon rather than just read about it. In short: Keathley Canyon is an undersea canyon in the United States Exclusive Economic Zone in the Gulf of Mexico. It is named for the hydrographic survey ship USNS Sergeant George D.

Key takeaways

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

Reference excerpt

Keathley Canyon is an undersea canyon in the United States Exclusive Economic Zone in the Gulf of Mexico. It is named for the hydrographic survey ship USNS Sergeant George D. Keathley (T-AGS-35). The Canyon is rich in oil fields. The major oilfields at the Keathley Canyon are Tiber, Kaskida, Lucius, and Buckskin. Many oil companies, including Chevron Corporation, BP, Anadarko Petroleum, ExxonMobil, Repsol, Shell, Devon Energy, BHP, Eni, Navitas Petroleum and Total have leased the rights to drill for oil in this area. In June 2011, ExxonMobil announced two major oil and gas discoveries in Keathley Canyon blocks 918, 919, and 964 (Hadrian field) 250 miles (400 km) southwest of New Orleans, with combined estimated reserves of 700 million barrels (110×10^6 m3). The find was "the company's first deepwater exploration well following a U.S. moratorium" after the Deepwater Horizon explosion and oil spill in the Gulf in 2010 and "one of the largest discoveries in the Gulf ... in the last decade". "Exxon holds a 50% working interest in four ... blocks. Units owned by Petrobras and Eni hold a 25% interest in three of the blocks. Petrobras also owns 50% of one of the blocks."

References

Illustrations

Worked examples

Example 1 — a first encounter with Keathley Canyon

Start with the simplest possible case. Write down what Keathley Canyon 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 Keathley Canyon 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 Keathley Canyon 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 Keathley Canyon

In research: Keathley Canyon 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 Keathley Canyon 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: Keathley Canyon is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gulf of Mexico oil fields of the United States, Marine geography stubs, Oceanography stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Keathley Canyon 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 Keathley Canyon in 20 minutes

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

Frequently asked questions

What is Keathley Canyon in simple terms?

Keathley Canyon is an undersea canyon in the United States Exclusive Economic Zone in the Gulf of Mexico. It is named for the hydrographic survey ship USNS Sergeant George D.

Why does Keathley Canyon 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 Keathley Canyon?

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 Keathley Canyon.