Geological Survey of Illinois volume 4
Geological Survey of Illinois volume 4
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In our eReader you can find the full English version of the book. Read Geological Survey of Illinois volume 4 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Geological Survey of Illinois volume 4
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Coal 6 4 10. Fire clay, penetrated in sump . * 5 It will be observed that, in this section the limestone, which generally is found just above the roof slate of the lower coal, is missing. This, however, is probably only a local peculiarity.
Another point along the bluffs of the Sangamon, where rock is said to occur, is in the northwestern part of section 15, township 17, range 6, on the land of Mr. A. Hale, where it is stated that limestone was quarried out in former times. I visited the excava...tion, but the rock was not visible above the rubbish, and judging from the chips, I made out the rock to be the same in appearance and fossils as that in Arnold's quarry, near Salem. The only doubt is, whether this may not have been merely a large detached mass, imbedded in Drift, like many in this vicinity.
In the northeast quarter of section 19, township 18, range 5, on the head- waters of Indian creek, there appears in the banks and beds of the stream, for about two hundred yards, a bed of light colored, nearly white, limestone, which seems to be almost entirely made up of crinoidal stems, no other fossils being observed.
What to read after Geological Survey of Illinois volume 4?
You can find similar books in the "Read Also" column, or choose other free books by Illinois State Geologist to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Coal 6 4 10. Fire clay, penetrated in sump . * 5 It will be observed that, in this section the limestone, which generally is found just above the roof slate of the lower coal, is missing. This, however, is probably only a local peculiarity.
Another point along the bluffs of the Sangamon, where rock is said to occur, is in the northwestern part of section 15, township 17, range 6, on the land of Mr. A. Hale, where it is stated that limestone was quarried out in former times. I visited the excava...tion, but the rock was not visible above the rubbish, and judging from the chips, I made out the rock to be the same in appearance and fossils as that in Arnold's quarry, near Salem. The only doubt is, whether this may not have been merely a large detached mass, imbedded in Drift, like many in this vicinity.
In the northeast quarter of section 19, township 18, range 5, on the head- waters of Indian creek, there appears in the banks and beds of the stream, for about two hundred yards, a bed of light colored, nearly white, limestone, which seems to be almost entirely made up of crinoidal stems, no other fossils being observed.
What to read after Geological Survey of Illinois volume 4?
You can find similar books in the "Read Also" column, or choose other free books by Illinois State Geologist to read onlineMoreLess
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