Uncategorized

Tjörnes Fracture Zone Double Nature

To be able to analyze the Tjörnes Fracture Zone, first it has to be realized that it extends from Skagafjörður to Skjálfandi, and in the East and West coincides with two different volcanic zones. The western volcanic zone of the North, Skagafjörður Volcanic Belt, is actually neglected by most geologists, because it is volcanically extinct. Still it exists seismically, as shown here.

Tjörnes Fracture Zone within the settings of the active North Volcanic Zone and the extinct Skagafjörður Volcanic Belt.

Recently, many earthquakes occurred at Reykjanes, and now within the Tjörnes Fracture Zone. Here, the convection rolls division line of Reykjanes is pointed out, to show how it divides the TFZ into two areas, east and west of the line. The earthquakes start on the line, and then start spreading along the Kolbeinsey Ridge.

Here I point out: https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2000TC900022

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