We're also told that the railroad (who actually owns the bridge by the way), inspects it each time it is hit. We've been told that the bridge is remeasured each time there is work on the road so the height is correct. Trucks have been running into the bridge for decades but larger truck sizes in recent years have dramatically increased the times it has been struck. The bridge has gotten so infamous that it even has its own East Main Street Bridge Facebook page. As far as we know, none of the drivers have been injured in any of the bridge collisions. There is an unofficial count that we are trying to get our hands on at this time. It should also be noted that Maine Street is not a truck route.Įven with all of these warnings the bridge has snagged dozens of trucks over the years. The bridge currently has warning signs, yellow blinking lights, yellow trim and a very large, tooth filled, sharks mouth painted on both sides. And although marked with warning signs many a trucker has tried to slide under the bridge. At 11'-4" there are not many large trucks that can make it under the bridge. The bridge has become somewhat of a celebrity due to the fact that it eats trucks like they are going out of style.īy eating trucks I mean that it peels the tops off of trailer trucks, box trucks and more. One of the most talked about subjects on Enid Buzz media is the train bridge on East Maine Street. Photos came flooding into Enid Buzz just moments after the crash. Unlike the truck in the video, this happened in broad daylight. Photo courtesy Jennifer Hemstreet.Īnd yet another truck has slammed into the Maine Street bridge. The bridge peeled the top off of the truck revealing its contents. An unmarked truck driving east on East Maine struck the train bridge early in the morning. Because of the nearly uniform distribution of strontium in ocean water, numerical age dating using strontium isotope ratios preserved in fossil shark tooth enameloid can be a useful method to employ in the correlation of marine geological strata on both regional and global scales.The Enid Buzz message and text apps were on fire Wednesday morning. Furthermore, this method is equally effective for both of the fossil shark genera analyzed in the study. Results indicate a strong correlation between stratigraphic position of the fossil teeth and numerical age determination based on 87 Sr/ 86 Sr content. Shark teeth collected from a bentonite mine in Monroe County, Mississippi, were also analyzed and compared with the radiometric date of the bentonite layer. Here we apply this methodology to the whole Upper Cretaceous, using teeth of two fossil shark genera (Scapa-norhynchus and Squalicorax) collected from variable facies. Numerical age dating using strontium isotope ratios (87 Sr/ 86 Sr) preserved in diagenetically resistant fossil shark tooth enam-eloid had been proposed by previous researchers as a solution to dating some geologic units. The age assignment of these strata in the eastern Gulf Coastal Plain is difficult due to the comparative lack of radiometrically datable beds and sometimes conflicting results of biostratigraphy using different taxonomic groups. The distinctly depleted d18OP values cannot be readily explained by fluvially affected freshening in a nearshore marine environment, so a diagenetic alteration of the Kaibab material seems to be more likely, excluding it from further interpretation.Ĭretaceous strata in Alabama and Mississippi (USA) represent one of the most complete records of shallow marine deposition worldwide for the Upper Cretaceous. In contrast, the isotopic composition of teeth from the marine Kaibab Formation is characterised by low d18OP values in the range of 13.4–15.6‰ VSMOW while 87Sr/86Sr ratios of around 0.70821 are closer to the Roadian seawater value. 87Sr/86Sr ratios of around 0.71077 are notably more radiogenic than 87Sr/86Sr of contemporaneous seawater. Distinctly higher d18OP values from two bone beds are attributed to significant evaporative enrichment in 18O in flood plain ponds. This indicates an adaptation to freshwater habitats on the Early Permian coastal plain by several sharks. The d18OP values derived from the teeth of bone beds are in the range of 17.6–23.5‰ VSMOW, and are mostly depleted in 18O by 0.5–5‰relative to proposed coeval marine d18OP values. D18OP values and 87Sr/86Sr ratios were determined on disarticulated xenacanthiform, hybodontid and ctenacanthid shark tooth material from several Early Permian (Sakmarian–Kungurian) continental bone beds of northern Texas and southern Oklahoma as well as from the marine Middle Permian (Roadian) of northern Arizona.
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