Skip the NI Direct Bar
Department of the Environment logo
Northern Ireland Environment Agency logo

Sruhanleanantawey Burn ASSI

Last updated: 7 May 2010

picture of Sruhanleanantawey Burn ASSI

Site No. ASSI 312
Area 1.75h.
Declared Date 16/11/2009
Confirmed Date  
County Londonderry
Council(s) Cookstown DC and
Magherafelt DC
Keywords Earth Science

 

Sruhanleanantawey Burn has been designated an ASSI because of it’s important geology.

The area provides access to a range of rocks that are exposed along the stream. The rocks here date from the Ordovician period of Earth history and are some 460 million years old.

The stream section exposes a sequence of sedimentary, volcanic and volcaniclastic rocks of Ordovician age, some 460 million years old.
A mixture of sedimentary, volcanic and other igneous rocks are exposed.

These were originally laid down in an ancient ocean called the Iapetus.
The type of volcanic rocks found at the site show that the rocks formed in what’s known as an `Island Arc? setting, similar to Japan and the Caribbean Islands today.

 

Site Related Documents

Site Map (.PDF 1.4Mb)Opens in New window, Copy of Citation and Views about Management document (.PDF 212Kb)Opens in New window and Colour Leaflet (.PDF 176Kb)Opens in New window.