The way that I followed.
An excellent study of geology in the guise of the author's rambles around Ireland by Frank Mitchell

Past Preceptions.
A series of essays on the archeology of the southwest. This is a must read. edited by Elisabeth Twohig and Margret Ronayne.

Excavations at North Gate Bridge
Study of the digging at Northgate Bridge in Cork by Maurice Hurley

Journal of the Cork Historical & Archeological Society.

Proceeding of the Royal Irish Academy.