Outcrops of quartzitic sandstone and fossiliferous ferruginous sandstone. Hopkins County, Texas. 1952.
Dates
Date Taken
1942
Summary
Outcrops of quartzitic sandstone and fossiliferous ferruginous sandstone: A mass of quartzitic sandstone near the highway, 3.5 miles southwest of Sulphur Springs, showing root impressions at the broken end and pits marking the upper end of root impressions. Hopkins County, Texas. Circa 1942. Plate 5-D, in U.S.Geological Survey Professional paper 243. 1952.
Summary
Outcrops of quartzitic sandstone and fossiliferous ferruginous sandstone: A mass of quartzitic sandstone near the highway, 3.5 miles southwest of Sulphur Springs, showing root impressions at the broken end and pits marking the upper end of root impressions. Hopkins County, Texas. Circa 1942. Plate 5-D, in U.S.Geological Survey Professional paper 243. 1952.
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