The Element Found in Some Sediments Which Suggest That a Meteorite

question 71

Multiple Choice

The element found in some sediments which suggest that a meteorite or asteroid impact occurred nearby is:

• A) iridium.
• B) manganese.
• C) strontium.
• D) uranium.
• E) yttrium.

---

Definitions:

Anticline

A type of fold in sedimentary strata that resembles an arch, with the oldest beds at its core.

Syncline

A fold in sedimentary strata that resembles a trough, where the youngest rocks are at the core of the fold.

Crust Thickness

The measure of the depth or the vertical extent of the Earth's crust, varying between oceanic and continental regions.

Rule of Thumb

A widely used guideline or principle that is not strictly accurate or reliable for every situation but provides a good general estimate.