Coal Information Map

This map layout is designed to provide easy access to coal related information. The map display features the traces of mapped coal beds in the eastern and western coal field. Beds are labeled with the seam abbreviation that was used on the original GQ map. Non-coal beds (mainly clay and limestone) are also shown, because they are often related to coal bed horizons.

Coal thickness measurements, collected from surface outcrops and mines, are shown as orange + symbols. The points are labeled with the measured total coal thickness. Results of the identify tools list the bed name, the source of data, total coal and parting thickness, and elevation at the base of the seam. The zoom button will refocus the map to an individual point measurement at a scale of about 1:5,000.

Coal boreholes that have been donated to KGS are shown as orange-centered circles. The holes are labeled with a unique identifier. The results of the identify tools provide summary information about the hole with links to reports of subsurface descriptions and coal bed summaries. Clicking the Hole ID link opens a window with a graphic strip log of the hole. An SVG plug-in is required to view these images. If the image does not appear in the window, click the link to the plug-in download site and install it.

To view mine information for the same area, click the KYMAPS icon at the bottom of the screen, then select one of the three sites listed under the mining section. That service will open in a new browser window, zoomed to the extent of your original map.

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• KGS coal information web pages
• Online core description manual for eastern Kentucky
• List of stratigraphic codes used in KGS borehole logs
• Kentucky Revenue Cabinet Seam Codes

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Map Data. This service uses two geologic base maps; the 1:500,000-scale geologic map of Kentucky at scales smaller than 1:100,000, and 1:24,000-scale geological quadrangle data at larger scales.

Tool bar. The tool bar contains standard tools for zoom and pan control of the map. In addition there are several custom tools:

• The tool is a query tool that returns information about features on the map at a point. Clicking on a geologic unit provides lithologic descriptions and, in some cases, economic, geotechnical, hydrologic, or other descriptions. Clicking on an overlay feature (e.g., oil well or quarry outline) provides summary information about the feature with links to additional data.
• The returns the same information as the point id tool, but for a rectangular search area drawn by the user.
• The will return photos taken at locations on the map which are designated by the symbol. For this tool to function and to view the photo icons on the map, the "Photo Locations" must be turned on as a map layer.
• The tool is a measuring tool which returns the distance in feet and miles between two points clicked on the map. This tool will also return the azimuth direction from the first to second point.
• The tool is a click tool that returns the coordinate and descriptive location for a point on the map.
• The tool is a query tool which allows the user to search for and highlight visible map features. You cannot search for point overlay features with this tool (use the tabular data searches, which link to the map interface for this functionality). To erase the highlights of queried features, click the button on the tool bar.
• The print tool creates a formatted print page for the map window.

Map Scale. Use this control to set the map to an exact scale. Common scales are provided in the pull down, or you can enter a custom scale.

Map Size. Changes the pixel dimensions of the map window. Setting this to full page results in a print page that fills 8.5 x 11 inch paper.

Zoom to a Location. The button opens a tool which allows the user to search by and zoom to a geographic area in Kentucky. The types of geographic areas which a user can search by include county name, coordinate location, stream or road name, etc...

KY MAPS. The button opens a table of links to other internet map services or databases in Kentucky. Selecting a service from the table will open it in another window, zoomed to the same extent of the geologic map.

Map Legend. This tab provides explanations for the map layout. Menu items can be collapsed by clicking the "hide" link. The geologic unit explanation includes all rock units for the geological quadrangles in the user's view. A custom map unit legend can be created that limits the symbols to visible units only. This "exact" legend may take up to a minute to generate.

Map Layers. This tab provides controls for changing the layout of the map. Standard map designs are located at the top. Clicking any of the active links automatically reformats the map to that design. To add or subtract other map layers, click the "customize" button, and check or uncheck any of the items. Layers that are dimmed out are not visible at the present map scale, but can still be included in the layout. Once all the desired layers are selected, click "update map", or zoom, pan, or rescale the map, and the new layout will become active.

Bookmark. This button on the Map Layers tab saves an Internet Explorer (IE) favorites link so that you can return to the same map view. You can save the map layout and its coordinate extent to return to the same map you have created. Or you can save only the layer design, so that you can return to the service with a pre-designed layout in another area. If you are using an IE browser, click the button for the type of bookmark desired. In other browsers, the buttons will not appear. Right click the link for the option desired, then select save to bookmark.

Geologic Information. There are two ways to get information about geologic units or other features on the map. The identity tool , described above, is used to gather information about specific features. It works by clicking on the map and the results are sent to a pop-up window. The identity tool only returns descriptions from the 1:24,000-scale GQ's. Be aware that the sensitivity of the tool is scale-dependant. Clicking at small scales may return descriptions for multiple map units or features.
The Geologic Information tab provides comprehensive searches for all information that pertains to the map extent. Because of the larger amount of information that is accessed, the searches are provided from individual links. The results are grouped by type of source and then by the individual source title. The source title is a link to the KGS online list of publications, where many publications can be viewed. For lithology descriptions, a portion of the graphic stratigraphic column is provided for context, and the full stratigraphic column is accessed from a link.