![]() ![]() DST Confusion Stopped in 2006īefore 2006, most of Indiana did not observe Daylight Saving Time. Some counties near the southwestern and northwestern border of the state use Central Time, changing between Central Standard Time (CST) and Central Daylight Time (CDT). Most of the state uses Eastern Time, using Eastern Standard Time (EST) during the winter months and Eastern Daylight Time (EDT) in the summer months when DST is in force. Business Date to Date (exclude holidays)Īll of Indiana sets the clocks forward 1 hour for DST in spring, and then set the clocks back again in the fall.Also, provides an online version of the North American Stratigraphic code if you are interested in understanding how rock units are defined and named. Provides information on the usage, age, type locality, subunits and history of the rock unit name. The Website allows searches by rock unit names, ages, or region. Want to find information about a specific rock unit name? This site is an online version of the lexicon of stratigraphy, which is a compilation of rock unit names used in the United States. The web preview is also available on CD from the USGS for a low cost. There is a short description of the rocks and fossils from that time period, and a series of options for zooming in on specific regions. You can choose a time period to see where rocks of that age are exposed at the surface in the United States. ![]() The Rock of Ages option shows the legend (explanation) for the geologic map (classified by intervals of geologic time). The Description of Features Option lets you zoom in on selected physiographic regions shown on the map and provides specific information about those regions. The Two Maps option shows each map separately and then merges them together using a Quicktime® plug-in. The map on the front page is a combination of a 3-D shaded relief map and a geologic map. A great site for visualizing the connection between bedrock geology and physiography (landscapes) and also for illustrating the distribution of rocks of different ages around the United States. Geological Survey also has information about the nation's geology. ![]() As a result, Kentucky was the first state to be completely geological mapped at a detailed scale. Geological Survey-Kentucky Geological Survey project that took approximately 20 years and hundreds of geologists to complete. This is the full-text version of the original out-of-print publication that summarized the geologic quadrangle mapping program. The Geology of Kentucky-A text to accompany the Geologic Map of Kentucky, by Robert C.Earth History Key Links: Annotated links to selected Web sites for important times in earth history.Kentucky was the first state in the Nation to be topographically mapped at a detailed scale (1:24,000) and the first (and only) state to be completely geologically mapped at a detailed scale (1:24,000). Topographic and Geologic Quadrangle Maps: A description of maps in Kentucky and map indexes.Geologic Time: Geologic time on Earth has been divided into intervals called eons, eras, and periods.County Geology: See simplified geologic maps of Kentucky counties with explanations of how the geology influences land-use planning.Virtual Field Trips and Online Field Trip Guidebooks: :Virtual field trips of some state parks and links to published field guides of geologic field trips in Kentucky.Roadside Geology in Kentucky: Links to maps and charts which explain the geology along Kentucky's major roadways.Places to See and Learn About Geology and Earth Science: : Links to university geology departments, museums with earth-science exhibits, and parks with scenic geology in Kentucky.Physiographic Map: A description of the landforms (geomorphology) across Kentucky.Beneath the Surface: A description of strata and geologic structures (faults, basins, arches) beneath the surface of Kentucky.Geologic Map: A description of the rock strata at the surface of Kentucky.Geologic Map Information Service: Interactive and customizable geologic maps with links to related data.If you see an image you like, right click and "Save picture as" to your computer ![]()
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