Keywords: Hydrothermal Breccia.jpg A picture I took during geological fieldwork of an outcrop of hydrothermal breccia at the Cloghleagh Iron Mine county Wicklow Ireland near 53° 11' 30 N 06° 25' 30 W UTM The hydrothermal breccia is about 12 million years old determined by Ar/Ar dating en wikipedia Danmichaelo 2007-02-17 Diamonddavej wikipedia en Diamonddavej Original upload log page en wikipedia Hydrothermal_Breccia jpg 2007-02-17 04 29 Diamonddavej 700×465× 119271 bytes <nowiki>David Jordan a picture I took myself during geological fieldwork </nowiki> Breccia Wicklow Rocks in Ireland Outcrops in Ireland |