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Girardeau Limestone

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Journal Article
Published: 01 March 1971
Journal of Paleontology (1971) 45 (2): 265–273.
Journal Article
Journal: GSA Bulletin
Published: 30 December 1926
GSA Bulletin (1926) 37 (4): 513–534.
... to respectively as the Southwestern area, the Central-western area, the Northeastern area, and the Northwestern area. Southwestern Area GIRARDEAU LIMESTONE AND ORCHARD CREEK SHALE The oldest formations of Silurian rocks in Illinois, and indeed the oldest known in the Mississippi Valley, are the Girardeau...
Journal Article
Published: 01 September 2006
Geological Magazine (2006) 143 (5): 657–678.
..., Baltoscandia, Scotland and China, is documented for the first time from the North American Midcontinent. Samples through the Girardeau Limestone and Leemon Formation in Missouri and Illinois show elevated δ 13 C values of + 4 ‰to + 5 ‰. Although not determined precisely, the beginning of the HICE is likely...
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Composite Hirnantian δ 13 C carb  curve for the Cape <span class="search-highlight">Girardeau</span> region based...
Published: 01 September 2006
in the HICE curve between the Girardeau Limestone and Leemon Formation is not determined but is not believed to be significant in terms of the general shape of the curve.
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Stratigraphy and δ 13 C carb  curve through the Hirnantian Stage of the Ruh...
Published: 01 September 2006
-site, see Kaljo et al. (2001 , fig. 1). Note that the disconformities at the base and the top of the Saldus Formation appear to correspond the HA and HB lowstands, respectively, in the Cape Girardeau region. Based on the HICE, the Edole Member seems to correspond to the Girardeau Limestone
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Table 1.  The eight localities included in the study. Samples from the Fair...
Published: 01 May 2009
Table 1.  The eight localities included in the study. Samples from the Fairview and Waynesville Formations com bine field collections with specimens from the Cincinnati Museum Center. Samples from the Benbolt Limestone, Decorah Shale, Girardeau Limestone, Lebanon Limestone, and the Bromide
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1939
AAPG Bulletin (1939) 23 (4): 595–601.
... section, in Missouri, the Bainbridge horizons, thought to be exposed also in the bed of Orchard Creek, are at least 100 feet, stratigraphically, above the Girardeau limestone. The Girardeau limestone forms the cascades in Rock Springs Hollow. Downstream from the cascades and at the level...
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Journal Article
Journal: Paleobiology
Published: 01 May 2009
Paleobiology (2009) 35 (2): 175–189.
...Table 1.  The eight localities included in the study. Samples from the Fairview and Waynesville Formations com bine field collections with specimens from the Cincinnati Museum Center. Samples from the Benbolt Limestone, Decorah Shale, Girardeau Limestone, Lebanon Limestone, and the Bromide...
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—Massive blocks of <span class="search-highlight">Girardeau</span> and Bainbridge <span class="search-highlight">limestones</span> in small valley, 3 m...
Published: 01 April 1939
Fig. 3. —Massive blocks of Girardeau and Bainbridge limestones in small valley, 3 miles south of Thebes, Illinois.
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1951
AAPG Bulletin (1951) 35 (9): 2041–2075.
.... 1 4 , Sec. 29, T. 35 N., R. 12 E., Perry County; and to 52 feet near Altenburg (Loc. 27). Beds classified as Zell are in contact with the Kimmswick limestone in the center of Sec. 23, T. 33 N., R. 12 E., northern Cape Girardeau County; float with Pionodema suggests that the Decorah is present...
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Journal Article
Published: 01 June 1950
Journal of Sedimentary Research (1950) 20 (2): 63–64.
...Edward Richard Larson Abstract Diastems are common features in the Plattin limestone (Middle Ordovician, Black River) in Missouri. Two prominent examples found by the writer in eastern Jefferson County are described. One is shown by the discordant molds of two large orthocone cephalopods...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1958
AAPG Bulletin (1958) 42 (3): 513–547.
..., and northern Kentucky. Introduction .—Upper Ordovician rocks in southeastern Missouri and southwestern Illinois are currently assigned (Twenhofel et al ., 1954, Pl. 1) to the following formations in descending order: Girardeau limestone, Orchard Creek shale (including Thebes sandstone member...
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Journal Article
Published: 16 March 2020
Geological Magazine (2020) 157 (7): 1176–1180.
... Zittel, 1879 Genus Euptychocrinus Brower, 1994 Type species. Glyptocrinus fimbriatus Shumard, 1855 , by the original designation of Brower ( 1994 , p. 577), from the Upper Ordovician (Hirnantian) Girardeau Limestone of Illinois and Missouri, USA (Brower, 1973 , pp. 446–8, plates 69–72...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 1948
AAPG Bulletin (1948) 32 (3): 351–365.
... County, the “Plattin” is limestone and the “Joachim” is dolomite. The contrasting lithologic characteristics serve fairly well to delimit the formations in the vicinity of the type localities. However, at the south in Perry, Ste. Genevieve, and Cape Girardeau counties, surface mapping has shown...
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Journal Article
Published: 01 July 2009
Journal of the Geological Society (2009) 166 (4): 689–694.
...-directed nappes. The ophiolites are themselves overlain by mid-Cretaceous shallow-marine limestones ( Girardeau et al . 1984, 1985 ). Various radiometric ages have been reported for the ophiolitic rocks. Notably, most are Jurassic with no older ages. Pearce & Deng (1988 ) inferred a Jurassic age...
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