| Abstract: | At the close of the 18th century, the haze of fantasy and mysticism that tended to obscure the true nature of the Earth was being swept away. Careful studies by scientists showed that rocks had diverse origins. Some rock layers, containing clearly identifiable fossil remains of fish and other forms of aquatic animal and plant life, originally formed in the ocean. Other layers, consisting of sand grains winnowed clean by the pounding surf, obviously formed as beach deposits that marked the shorelines of ancient seas. |
| Genre: | USGS Unnumbered Series |
| ProdID: | 70043849 |
| Citation Author: | U.S. Geologic Survey |
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| Citation Language: | English |
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| Citation Phsyical Description: | HTML Document |
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| Citation Publisher: | U.S. Geological Survey |
| Citation Series: | General Information Product |
| Citation Series Code: | GIP |
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| Citation Search Results Text: | Mud fossils; 1997; USGS Unnumbered Series; GIP; U.S. Geologic Survey |
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| Citation Year: | 1997 |
| Type: | citation/reference |
| Text: | Mud fossils; 1997; USGS Unnumbered Series; GIP; U.S. Geologic Survey |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://online.wr.usgs.gov/outreach/mudFossils/mudFossils.html |
| Date Other: | Tue, 1 Jan 2013 00:00 -0600 |
| Publisher: | U.S. Geological Survey |
