Bowen's Reaction Series

1. In addition to mineral content, you must also consider _________ composition when classifying rocks.

Mafic is a contraction of what two elements?

• Aluminum

• Magnesium

• Calcium

• Iron

Which element is not a part of the contraction to create "felsic."

• Aluminum

• Iron

• Silicon

• Potassium

Choose one of the following rocks (granite, peridotite, rhyolite, basalt, or obsidian) and describe it using the terms to describe grain size and chemical composition. Expand the image to answer the question.

1. What is Bowen's Reaction Series?

• A process of weathering and erosion from volcanoes.

• A classification of sedimentary rocks in a river bed.

• A description of crystallization process of minerals from cooling magma.

• A method for determining the absolute age of rocks within a geologic era.

Expand the picture to answer the question. Which crystalizes first at high temperatures?

• mafic rocks

• felsic rocks

How would the presence of water impact the cooling rate of the magma?