Volcanic Tuff near Louisbourg Lighthouse – Part 5

Scroll down to content

Not all the rock exposed at Louisbourg Lighthouse is composed of tuff. Molten lavas intruded the tuff at later stages forming harder bands of igneous rock with a contrasting greenish colour and distinct fracture patterns. The textures of the two kinds of rock are very different.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: