. Manual of the geology of Ireland. Aughrim River Valley, County Wicklow. and, apparently, ought to belong to the basin of the this it probably did belong before the Esker sea period,as in the neighbourhood of Tullow, County of Carlow, thereis a bank of Esker gravel which deflects the river into the- Valleys. 19 gap through the hills. The Slaney keeps altogether to theW. and SW. of its water basin, and all its large tributariesflow into it from the county to the east, some of them intoits estuary, it being tidal up to Enniscorthy, about nine-teen miles from the open sea. Wexford Harb
. Manual of the geology of Ireland. Aughrim River Valley, County Wicklow. and, apparently, ought to belong to the basin of the this it probably did belong before the Esker sea period,as in the neighbourhood of Tullow, County of Carlow, thereis a bank of Esker gravel which deflects the river into the- Valleys. 19 gap through the hills. The Slaney keeps altogether to theW. and SW. of its water basin, and all its large tributariesflow into it from the county to the east, some of them intoits estuary, it being tidal up to Enniscorthy, about nine-teen miles from the open sea. Wexford Harbour, on thelower portion of the estuary, is a spacious lagoon, margined. -+? + ! ~r* 7 j. ShaLes&Griie \V \Fazte*-Tocks Map of the Fault-rock in Kilmacrea Pass, County Wicklow. to the east by long ridges of ^Eolian sand, called theRaven and Rosslare banks, the length of the two beingnearly eleven miles. Nowhere in this valley till it reachesthe mountains around Glen-Imale do rocks appear, theriver course being cut in estuarian sands and gravels 320 Geology of Ireland. belonging to the Esker, and the more recent, seas. Spencercalls the Slaney the Sandy Slaney; this may refereither to the sands at the mouth of the Estuary, or to thesands through which the river flows. The Ovoca and its tributaries, which drain the greaterportion of the County of Wicklow, occupy deep narrowvalleys excavated along lines of faults, that of theAughrim river being shown in Fig 22. Along thesefault-lines dykes of fault-rock seem to occur, as can beseen at the Ovoca mines, in Glenmalure, and in some ofthe neighbouriug fissures, like that called Kilmacrea Pass,of which the acc
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