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Service Description: Bedrock is the solid rock at or below the land surface. Over much of Ireland, the bedrock is covered by materials such as soil and gravel. The Bedrock map shows what the land surface of Ireland would be made up of if these materials were removed. As the bedrock is commonly covered, bedrock maps are an interpretation of the available data. The depth to bedrock map indicates the depth of materials sitting above the bedrock. . The Rock surface height is known as rockhead.
Geologists map and record information on the composition and structure of rock outcrops (rock which can be seen on the land surface) and boreholes (a deep narrow round hole drilled in the ground). They use this information to determine the depth to bedrock.
It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).
The data is shown as polygons. Each depth to bedrock polygon holds information on the depth to bedrock and depth to bedrock class.
Each rockhead polygon holds information on the Minimum Rockhead (m), Maximum Rockhead (m)and Rockhead Class.
The data was produced for the GeoUrban Dublin Project (2007 - 2013), which aimed to publish all of the organisation’s urban datasets.
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Description: Bedrock is the solid rock at or below the land surface. Over much of Ireland, the bedrock is covered by materials such as soil and gravel. The Bedrock map shows what the land surface of Ireland would be made up of if these materials were removed. As the bedrock is commonly covered, bedrock maps are an interpretation of the available data. The depth to bedrock map indicates the depth of materials sitting above the bedrock. . The Rock surface height is known as rockhead.Geologists map and record information on the composition and structure of rock outcrops (rock which can be seen on the land surface) and boreholes (a deep narrow round hole drilled in the ground). They use this information to determine the depth to bedrock.It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The data is shown as polygons. Each depth to bedrock polygon holds information on the depth to bedrock and depth to bedrock class.Each rockhead polygon holds information on the Minimum Rockhead (m), Maximum Rockhead (m)and Rockhead Class.The data was produced for the GeoUrban Dublin Project (2007 - 2013), which aimed to publish all of the organisation’s urban datasets.
Service Item Id: 39d207188c6042e080819ad06dfb24fb
Copyright Text: Geological Survey Ireland
Spatial Reference:
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Document Info:
Title: IE GSI Depth to Bedrock and Rockhead Dublin ITM
Author:
Comments: Bedrock is the solid rock at or below the land surface. Over much of Ireland, the bedrock is covered by materials such as soil and gravel. The Bedrock map shows what the land surface of Ireland would be made up of if these materials were removed. As the bedrock is commonly covered, bedrock maps are an interpretation of the available data. The depth to bedrock map indicates the depth of materials sitting above the bedrock. . The Rock surface height is known as rockhead.Geologists map and record information on the composition and structure of rock outcrops (rock which can be seen on the land surface) and boreholes (a deep narrow round hole drilled in the ground). They use this information to determine the depth to bedrock.It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The data is shown as polygons. Each depth to bedrock polygon holds information on the depth to bedrock and depth to bedrock class.Each rockhead polygon holds information on the Minimum Rockhead (m), Maximum Rockhead (m)and Rockhead Class.The data was produced for the GeoUrban Dublin Project (2007 - 2013), which aimed to publish all of the organisation’s urban datasets.
Subject: Knowing the structure and type of bedrock is vital in many areas of our lives.
Bedrock maps help us locate groundwater sources which can be used to supply drinking water. Rock properties and structures such as faults impact how water and/or pollutants move below the surface. Drinking water can be protected by locating potential polluting operations, such as landfills, away from groundwater.
Geothermal energy is the energy stored in the form of heat beneath the surface of the earth. It can be used to supply heat and hot water. It can also be used to cool a house by removing surplus heat energy and putting it into the ground. Bedrock maps along with subsoil and aquifer maps are used to help decide if the ground under a site is suitable for geothermal energy extraction.
Engineers need this information when they are designing structures (houses, buildings, roads, etc.). They need to know the quality of the ground (strength and depth of soil, if rock and or groundwater is present) and how structures can be built in and on it. They use the information to decide the best supports and foundations needed for structures so that they don’t collapse. They can also find out if there are any underground obstructions, groundwater, faults etc which could result in additional costs or delays.
Bedrock maps are used to find sites suitable for the extraction of valuable mineral deposits. Nearly all of the metals we use today are extracted from a number of minerals that different rocks are made up of.
Category:
Keywords: Ireland,IE/GSI,Geology,bedrock,depth to bedrock,DTB,Dublin,rockhead
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