Pages
-
Categories
- Categories
-
Archives
how is it that people who know little control lots?
Get real
Share things
Consume sceptically
Take Friday off…forever
Beware of common sense
Redefine the bottom line
The rocks of East Greenland and Scotland were part of the same continental block (Laurentia) in the geological past. In fact they share that geological heritage until the the opening og the North Atlantic some 60 million years ago. The map below shows the arrangement of continental blocks about 530 million years ago, Greenland Canadian North America and Scotland were all together as part of Laurentia.The geological links are particul;arly strong around this time with all of East Greenland, Scotland and the Appalachians (with western Scandanavia and Svalbard) part of the what geologists refere to as the Caledonian Mountain Belt. I don’t know of too many slates in East Greenland but they do occur in the far (eastern) part of North Greenland in Skallingen and Kronsprins Christian Land. Is it probably quite resonable to correlate the slaty rocks there with the slates of Lismore and Ballachulish in Argyll in Scotland. Same age, part of the same depositional system on the edge of the same ancient oceran (Iapetus) and the same shared hisory in the subsequent creation of the Caledonian Mountain belt during the Caledonian Orogeny (some 460 -400 million years ago). In both cases though the present lanscape is very much the product of glaciation, current obviuously in Greenland’s case, and as recently as 12000 years ago in Scotlands case.






