학술논문

Gold potential of the Dalradian rocks of north-west Northern Ireland: prospectivity analysis using Tellus data.
Document Type
Article
Source
Transactions - Institution of Mining & Metallurgy. Section B. Applied Earth Science. Sep-Dec2009, Vol. 118 Issue 3/4, p162-177. 16p. 1 Diagram, 13 Charts, 1 Map.
Subject
*GOLD ore geology
*OROGENIC belts
*GEOLOGICAL basins
*GEOLOGY
Language
ISSN
0371-7453
Abstract
The Dalradian terrane in the north-west of Northern Ireland is prospective for orogenic vein-hosted gold mineralisation with important deposits at Curraghinalt and Cavanacaw. New geochemical and geophysical data from the DETI-funded Tellus project have been used, in conjunction with other spatial geoscience datasets, to map the distribution of prospectivity for this style of mineralisation over this terrane. A knowledge-based fuzzy logic modelling methodology using Arc Spatial Data Modeller was utilised. Four main groups of targets were identified, many close to known occurrences in the Lack – Curraghinalt zone and others in prospective areas identified by previous investigations. Additional targets are located along west-north-west trending linear zones at the eastern end of the Newtownstewart Basin and to the north of the Omagh-Kesh Basin. These zones may be related to major structures linked to a westward extension of the Curraghinalt lateral ramp which is regarded as an important control on the location of the Curraghinalt deposit. [ABSTRACT FROM AUTHOR]