earth science

Yacoraite Formation

Yacoraite 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 Yacoraite Formation rather than just read about it. In short: The Yacoraite Formation is a largely Mesozoic geologic formation. The deposits of this formation mainly date from the Maastrichtian of the Upper Cretaceous, but the Cretaceous–Paleogene boundary (K–T boundary) runs right through this formation near its top, and the uppermost parts are consequently from the Danian (Lower Paleocene).

Key takeaways

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

Reference excerpt

The Yacoraite Formation is a largely Mesozoic geologic formation. The deposits of this formation mainly date from the Maastrichtian of the Upper Cretaceous, but the Cretaceous–Paleogene boundary (K–T boundary) runs right through this formation near its top, and the uppermost parts are consequently from the Danian (Lower Paleocene). It was probably deposited around the intertidal zone, as the sedimentary rocks of this formation alternate according to sea level changes between deposits of muddy beaches and of shallow ocean.

Fossil content Dinosaur remains are among the fossils that have been recovered from the formation. Well-preserved dinosaur footprints assigned to Hadrosaurichnus australis have been found in this formation, as were fossil eggs, stromatolites and the Mesozoic palynomorph Aquilapollenites. Other fossils recovered from the formation are:

Pucapristis branisi Gasteroclupea branisai Coelodus toncoensis Dolichochampsa minima Ichnofossils Brasilichnium cf. saltatorium Hadrosaurichnus australis Salfitichnus mentoor Taponichnus donottoi Telosichnus saltensis Yacoraitichnus avis

See also List of dinosaur-bearing rock formations List of stratigraphic units with indeterminate dinosaur fossils

References

Bibliography Leonardi, Giuseppe (1994), Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an appendix on Mexico and Central America, Ministerio de Minas e Energia - Companhia de Pesquisa de Recursos Minerais, Geological Service of Brazil, pp. 1–248, retrieved 2019-03-25 Marquillas, Rosa; del Papa, Cecilia; Sabino, Ignacio; Heredia, Jorge (2003), "Prospección del límite K/T en la cuenca del Noroeste, Argentina - The K/T boundary prospecting in the Northwest Basin, Argentina", Revista de la Asociación Geológica Argentina, 58: 271–274, retrieved 2019-03-25 Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 880 p, ISBN 0-520-24209-2, retrieved 2019-02-21{{citation}}: CS1 maint: publisher location (link)

Worked examples

Example 1 — a first encounter with Yacoraite Formation

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

In research: Yacoraite 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 Yacoraite 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: Yacoraite Formation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cretaceous Argentina, Cretaceous–Paleogene boundary, Danian Stage, so understanding it makes those chapters shorter.
In everyday life: Look for Yacoraite 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 Yacoraite Formation in 20 minutes

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

Frequently asked questions

What is Yacoraite Formation in simple terms?

Why does Yacoraite 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 Yacoraite 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 Yacoraite Formation.