strip-mined decreased Illinois Basin 22 189 Indiana Kentucky first 36,800 Hamilt
ID: 297276 • Letter: S
Question
strip-mined decreased Illinois Basin 22
189 Indiana Kentucky first
36,800 Hamilton Macoupin Jasper
White Wayne recoverable central
bituminous southern
According to the Illinois Geological Survey, approximately _____ mi2 of are underlain with _____ coal in a sequence of strata known as the _____. Coal is found in the ______ and _____ portions of the state roughly along and south of Interstate 80. These coal rich strata also underlie portions of the states of _____ and _____. In the U.S., Illinois ranks _____ among all of the states in coal that can be _____ (i.e., strata near the surface where coal can be scraped out as opposed to underground mining). Currently, about 35 million tons of coal is mined each year in Illinois. Figure 4 in the report indicates that the amount of coal mined in Illinois has _____ over the past century. About 54% of the remaining coal resources in Illinois meet the U.S. Department of Energy’s standards as _____ given current economic conditions. Of these resources approximately ____ billion tons can be _____ while _____ billion tons is estimated to be recoverable by underground mining. Table 3 of the report (found on pages 5 & 6 of the 13 pages in this report which are numbered pages 460 and 461) summarizes the coal resources by county. The top three counties in total coal resources (i.e. the data found in the third column from the right of the table) in descending order are _____, _____, and _____ counties. The counties with the greatest amount of recoverable reserves (i.e. data in the far right column) are _____, _____, and _____ counties respectively.
Explanation / Answer
According to the Illinois Geological Survey, approximately strip mined mi2 of are underlain with bitamenous coal in a sequence of strata known as the illinoise basin. Coal is found in the central and southern portions of the state roughly along and south of Interstate 80. These coal rich strata also underlie portions of the states of indiana and hamilton. In the U.S., Illinois ranks 22 among all of the states in coal that can be recoverable (i.e., strata near the surface where coal can be scraped out as opposed to underground mining). Currently, about 35 million tons of coal is mined each year in Illinois. Figure 4 in the report indicates that the amount of coal mined in Illinois has jasper over the past century. About 54% of the remaining coal resources in Illinois meet the U.S. Department of Energy’s standards as first given current economic conditions. Of these resources approximately 189 billion tons can be recoverable while 36800 billion tons is estimated to be recoverable by underground mining. Table 3 of the report (found on pages 5 & 6 of the 13 pages in this report which are numbered pages 460 and 461) summarizes the coal resources by county. The top three counties in total coal resources (i.e. the data found in the third column from the right of the table) in descending order are Macoupin, Kentucky , and Hamilton counties. The counties with the greatest amount of recoverable reserves (i.e. data in the far right column) are Hamilton, Macoupin , and Kentucky counties respectively.
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