Editing Post-Caledonian igneous activity, Northern Highlands of Scotland

Jump to navigation Jump to search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.

This page supports semantic in-text annotations (e.g. "[[Is specified as::World Heritage Site]]") to build structured and queryable content provided by Semantic MediaWiki. For a comprehensive description on how to use annotations or the #ask parser function, please have a look at the getting started, in-text annotation, or inline queries help pages.

Latest revision Your text
Line 2: Line 2:
  
 
== Post-Caledonian igneous activity, introduction ==
 
== Post-Caledonian igneous activity, introduction ==
[[File:P915494.jpg|thumbnail|Tertiary dyke swarms of the Northern Highlands. P915494.]]
+
There were two main episodes of post-Caledonian igneous activity in the Northern Highlands. In Permo-Carboniferous times the area was intruded by numerous dykes and several vents, but there are no outcrops of extrusive rocks of this age. In Tertiary times the area covering the Inner Hebrides, Arclnamurchan and Morvern was the site of intense volcanic activity associated with the fracturing of the north-west seaboard of Eurasia on the margins of the developing Atlantic Ocean. The Tertiary volcanic centres are described in ''British Regional Geology: The Tertiary Volcanic Districts ''and will not be discussed here. The Tertiary dyke swarms, however, extend well beyond the limits of the area covered in that book, into the Northern and Grampian Highlands and beyond.
[[File:P915495.jpg|thumbnail|Dilation axes of the  Terrtiary dyke swarms. P915495.]]There were two main episodes of post-Caledonian igneous activity in the Northern Highlands. In Permo-Carboniferous times the area was intruded by numerous dykes and several vents, but there are no outcrops of extrusive rocks of this age. In Tertiary times the area covering the Inner Hebrides, Arclnamurchan and Morvern was the site of intense volcanic activity associated with the fracturing of the north-west seaboard of Eurasia on the margins of the developing Atlantic Ocean. The Tertiary volcanic centres are described in ''British Regional Geology: The Tertiary Volcanic Districts ''and will not be discussed here. The Tertiary dyke swarms, however, extend well beyond the limits of the area covered in that book, into the Northern and Grampian Highlands and beyond.
 
  
 
== Late-Caledonian  ==
 
== Late-Caledonian  ==

Please note that all contributions to Earthwise may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Earthwise:Copyrights for details). Do not submit copyrighted work without permission!

Cancel Editing help (opens in new window)

  [] · [[]] · [[|]] · {{}} · · “” ‘’ «» ‹› „“ ‚‘ · ~ | °   · ± × ÷ ² ³ ½ · §
[[Category:]] · [[:File:]] · <code></code> · <syntaxhighlight></syntaxhighlight> · <includeonly></includeonly> · <noinclude></noinclude> · #REDIRECT[[]] · <translate></translate> · <languages/> · ==References== · {{reflist}} · ==Footnote== · {{reflist|group=note}} · <ref group=note> · __notoc__ · {{DEFAULTSORT:}} <div class="someclass noprint"></div> {{clear}} <br>

Template used on this page: