The Discontinuous Branch of Bowen's Reaction Series Includes Various Compositions

question 85

True/False

The discontinuous branch of Bowen's reaction series includes various compositions of plagioclase, from calcium-rich to sodium-rich.

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Definitions:

Original Horizontality

A principle stating that sedimentary rocks are deposited in horizontal or nearly horizontal layers under the action of gravity.

Superposition

A principle that states in an undisturbed sequence of rocks, layers of rock were deposited in order from bottom to top according to their age, with the oldest at the bottom and the youngest at the top.

Isotopic Ages

The determination of the age of a material by measuring the ratio of parent isotopes to daughter products in samples.

Volcanic Eruption

The process of magma escaping from within the Earth’s crust to its surface, often accompanied by the release of gases and ash.