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Map layers

* Red layers cannot be viewed at current scale.
* Click on a layer name for layer details and layer key.
Go to location
Bookmark: To bookmark your current location, click on
'Add Bookmark' below and enter a name for the location.
Click on a bookmark name to zoom to that location.

Possible locations include:
* Long-Lat (e.g. -8.497,58.586)
* Quadrant (e.g. 153)
* Block (e.g. 153/13)
Print Results: Open a printable map window, which includes tabular results of the current search operation. Important: You must disable your pop-up blocker for the print page to open.

Enter Map Name:

Export To Text File: Export results in the active tab of the results table to a Tab delimited text file compatible with Microsoft Excel. Important This operation might take some time when exporting many results.

Select either 'Measure Line' to measure distance
or 'Measure Polygon' to measure perimeter and area.
Follow on screen instructions to draw shape.

Measure Line
Measure Polygon
  1. Full
  2. Transparency
  3. None
Geological Materials Copyright NERC. All rights reserved.
Hover over a row to highlight feature.
Double click on row to zoom to feature.
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Navigating the map

To pan: left-click on the map and drag.
To zoom: Drag the vertical slider on the left of the map, use the mouse wheel, hold down the Shift key and drag a rectangle, double-click, or use the 'Go to location'.

Display map layers

Clicking on the 'Map layers' button will allow you to switch layers on and off.

Show map key

Click on the 'Key' button to display a key for the currently visible layers.

Get feature details

Left-click on a feature on the map will return details of that feature.

Go to location

Click on the 'Go to location' button to zoom to a location e.g. long-lat, quadrant, or block.

Map overview

Click on the arrow at the bottom right of the map to open the map overview window. Dragging the red rectangle in this window allows you to change the extant of the main map.

Search map layers

To use the search tools, make one or more layers visible using 'Map Layers' and click the 'Search' button. Two types of search are available
1) Spatial Search: Choose rectangle, polygon, or free-hand for the search shape. Draw the shape on the map following the on-screen instructions. A results window will open and only those features within the search shape will be shown on the map.
2) Attribute Search: Select a layer to search, enter the search text and click the 'Search' button. A results window will open and only the features that contain the search text will be displayed on the map.

The 'Clear All Results' button will hide the results window and remove any active search query.

Using the results window

Hover over a row to highlight the feature on the map (in yellow). Double click on the row to zoom to the feature.

Exporting results

Click on the 'Print/Export' button and select 'Export to Text File' to download an Excel compatible tab delimited text file of the results shown in the currently active tab of the results table.

Printable report

Click on the 'Print/Export' button, enter a map name and select 'Create Printable Report' to generate a printable report containing a map, map key and tables showing the results of any spatial or attribute query. Note you must disable your pop-up blocker for the print page to open.


Click on the 'Measure' button and select either 'Measure Line' (returns distance) or 'Measure Polygon' (returns perimeter and area). Draw the selected shape following the on-screen instructions.
For data enquiries, please send an email to:


The body of the email should include the name of the dataset(s) you wish to enquire about, together with the specific details of your enquiry.

A geographical area of interest can be specified as quadrants, blocks, or a rectangular shaped area defined by the coordinates of the bottom-left and top-right corners.