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Crug limestone

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Journal Article
Published: 01 October 1959
Micropaleontology (1959) 5 (4): 427-452.
...Maurits Lindstroem Abstract The abundance of conodonts in the Crug limestone of the Llandeilo district is attributed to a decrease in terrigenous sedimentation during deposition of the limestone. The fauna is represented by more or less fragmentary material and includes new species. Comparisons...
Journal Article
Published: 01 January 1965
Micropaleontology (1965) 11 (1): 59-80.
... of Minnesota and the Kimmswick Formation of Missouri. By contrast, Jacksonburg Limestone in an isolated outlier near Clinton, N. J., yielded a distinctly northern European fauna of 250 specimens of 28 species and 16 genera. The fauna shows close correlation with the Crug and other limestones of Wales...
Book Chapter

Series: Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/SR24.4
EISBN: 9781862396920
... in Williams et al. (1972 , fig. 6 ). Thus central South Wales probably has the most complete Ordovician sucession of any part of Britain. Since the publication of the previous correlation charts, the Crug and Birdshill Limestones (Column 5) have been reappraised as early Ashgill in age (Orchard 1980...
FIGURES
Series: Geological Society, London, Geology of Series
Published: 01 January 2006
DOI: 10.1144/GOEWP.3
EISBN: 9781862393882
... change in many places from the anoxic sediments of the Nod Glas to the the typical deposits in and around the basin, which were oxygenated mud and silt but with important argillaceous limestones in North Wales and South Wales. The estimated 100 m glacio-eustatic fall in the final Hirnantian Stage...
FIGURES | View All (47)
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP325.13
EISBN: 9781862395732
... mounds and stromatactis. (c) Mid- to Late Silurian, showing diamictites and glacial dropstones, and cool-water carbonates (Sacta Limestone) in Gondwana (South America), cephalopod limestone biofacies through peri-Gondwanan terranes, and warm-water limestones in low latitudes (Baltica, Avalonia, Laurentia...
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