earth science

Maastricht Formation

Maastricht 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 Maastricht Formation rather than just read about it. In short: The Maastricht Formation (Dutch: Formatie van Maastricht; abbreviation: MMa), named after the city of Maastricht in the Netherlands, is a geological formation in the Netherlands and Belgium whose strata date back to the Late Cretaceous, within 500,000 years of the Cretaceous–Paleogene boundary, now dated at 66 million years ago. The formation is part of the Chalk Group and is between 30 and 90 metres (98 and 295 ft)…

Key takeaways

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

Reference excerpt

The Maastricht Formation (Dutch: Formatie van Maastricht; abbreviation: MMa), named after the city of Maastricht in the Netherlands, is a geological formation in the Netherlands and Belgium whose strata date back to the Late Cretaceous, within 500,000 years of the Cretaceous–Paleogene boundary, now dated at 66 million years ago. The formation is part of the Chalk Group and is between 30 and 90 metres (98 and 295 ft) thick. It crops out in southern parts of Dutch and Belgian Limburg and adjacent areas in Germany. It can be found in the subsurface of northern Belgium and southeastern Netherlands, especially in the Campine Basin and Roer Valley Graben. Dinosaur remains are among the fossils that have been recovered from the formation.

Lithology The Maastricht Formation consists of soft, sandy shallow marine limestone (in Limburg locally called "mergel"), in fact chalk and calcareous arenite. These lithologies locally alternate with thin bands of marl or clay. The lower parts of the formation contain flint concretions. The upper parts can have shellrich layers. Its age is between about 70 and 66 million years, which puts it in the Maastrichtian, a stage that was named after the formation. The top of the formation has been identified as Danian (early Paleocene) in age. The type locality is at the ruins of Lichtenberg castle on Mount Saint Peter, Maastricht.

Depositional environment Two primary environment-types have been described in the Maastricht Formation. The lower Kunrade Chalk representing a shallow, semi-lagoonal area near land of low relief which supplied terrigenous material. The Biofacies of the Kunrade Chalk are dominated by burrowing bivalves and abundant seagrass. In contrast, the upper Maastricht Chalk was deposited further offshore in clean carbonate sands. Periods of non deposition resulted in the lithification of sands forming hardgrounds that supported a diversity of echinoids and corals.

Stratigraphy The Maastricht Formation was first described by Belgian geologist André Dumont in 1849. The formation is subdivided in seven members, from top to bottom these are the Meerssen Member, Nekum Member, Emael Member, Schiepersberg Member, Gronsveld Member, Valkenburg Member and Kunrade Member. The members are often hard to distinguish. The Maastricht Formation is overlain by the Paleocene Houthem Formation and was deposited on top of the older Gulpen Formation.

Vertebrate paleofauna

Dinosaurs

Mammals

Mosasaurs

Testudines

Plesiosauria Indeterminate elasmosaurids

Bony fish

Invertebrate paleofauna

Plants

Illustrations

Worked examples

Example 1 — a first encounter with Maastricht Formation

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

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

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

Frequently asked questions

What is Maastricht Formation in simple terms?

Why does Maastricht 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 Maastricht 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 Maastricht Formation.