• The Plattin Limestone is a Middle Ordovician geologic formation in Arkansas, Illinois, and Missouri. The name was first introduced in 1904 by Edward Oscar...
    3 KB (168 words) - 02:02, 6 September 2021
  • Thumbnail for Knox Supergroup
    Predominantly, it is composed of carbonates, chiefly dolomite, with some limestone. There are also cherty inclusions as well as thin beds of sandstone. The...
    15 KB (1,189 words) - 01:23, 27 March 2025
  • The Fort Atkinson Limestone is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period. List of fossiliferous stratigraphic...
    2 KB (53 words) - 07:14, 18 November 2024
  • Megagroup also Hunton Super Group, Hunton Group, Hunton Formation and Hunton Limestone is predominantly composed of carbonate rock, deposited between the Silurian...
    14 KB (1,196 words) - 08:20, 14 September 2024
  • Thumbnail for Blanchard Springs Caverns
    Blanchard Springs Caverns (category Limestone caves)
    lower-level Discovery Route is in the approximately 100 feet (30 m) thick Plattin limestone whereas the Dripstone tour route in the uppermost level of the cave...
    6 KB (694 words) - 06:30, 14 February 2025
  • the Ford Station Limestone, Tygett Sandstone and Cora Limestone Members. This sandstone unit is 0-120' thick. The Menard Limestone is a geologic formation...
    8 KB (653 words) - 13:04, 8 July 2024
  • Thumbnail for Joachim Dolomite
    study of the geology of Missouri. Winslow designated a stratotype along Plattin Creek, which was misidentified as Joachim Creek, in Jefferson County. The...
    3 KB (168 words) - 17:11, 30 May 2020
  • Thumbnail for Salem Limestone
    quarried and used as a building material, known as "Indiana limestone", also called Bedford limestone. List of fossiliferous stratigraphic units in Illinois...
    3 KB (134 words) - 08:49, 18 November 2024
  • Thumbnail for Kimmswick Limestone
    The Kimmswick Limestone is an Ordovician geologic formation in Arkansas, Illinois and Missouri. Fossils occurring in the Kimmswick include corals, bryozoans...
    6 KB (271 words) - 04:48, 19 November 2024
  • Thumbnail for Sugar Run Dolomite
    James (1988). Joliet-Lemont Limestone (PDF). Landmarks Preservation Council of Illinois. Retrieved 10 March 2023. "Limestoned". Various Contributors to...
    3 KB (201 words) - 09:03, 18 November 2024
  • Thumbnail for Burlington Limestone
    Wikimedia Commons has media related to Burlington Limestone. The Burlington Limestone is a geologic formation in Missouri, Iowa and the Midwest region...
    4 KB (269 words) - 06:37, 18 November 2024
  • Thumbnail for Ste. Genevieve Limestone
    Genevieve Limestone is a geologic formation named for Ste. Genevieve, Missouri where it is exposed and was first described. It is a thick-bedded limestone that...
    3 KB (131 words) - 04:15, 25 April 2022
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    1 KB (51 words) - 08:14, 18 November 2024
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    1 KB (60 words) - 07:21, 18 November 2024
  • Thumbnail for St. Louis Limestone
    The St. Louis Limestone is a large geologic formation covering a wide area of the midwest of the United States. It is named after an exposure at St. Louis...
    4 KB (159 words) - 18:47, 18 January 2025
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    1 KB (51 words) - 08:12, 18 November 2024
  • Thumbnail for Jordan Sandstone
    Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    2 KB (60 words) - 02:11, 31 May 2025
  • member is a shaley limestone. The Jeffersonville Limestone is a coarse grained, dark gray, thick bedded, fossiliferous limestone. Quarries in Pulaski...
    4 KB (221 words) - 14:31, 31 July 2024
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    6 KB (558 words) - 23:51, 31 May 2025
  • Thumbnail for Davis Formation
    Davis Formation (category Limestone formations of the United States)
    Dolomite Fort Atkinson Limestone Joachim Formation Kope Formation Lexington Limestone Oneota Dolomite Pecatonica Formation Plattin Formation Scales Shale...
    3 KB (124 words) - 00:36, 31 May 2025
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    1 KB (53 words) - 19:43, 20 July 2024
  • The Grand Tower Limestone is a geologic formation in Illinois. It preserves fossils dating back to the Devonian period. Earth sciences portal Illinois...
    1 KB (60 words) - 07:21, 18 November 2024
  • Joachim Dolomite, Plattin Limestone, Decorah Shale, Kimmswick Limestone, and an unconformity, followed by the Girardeau Limestone (only in the southeast)...
    9 KB (1,232 words) - 08:57, 14 July 2024
  • Thumbnail for Bond Formation
    Dolomite Fort Atkinson Limestone Joachim Formation Kope Formation Lexington Limestone Oneota Dolomite Pecatonica Formation Plattin Formation Scales Shale...
    2 KB (47 words) - 06:34, 18 November 2024
  • The St. Clair Limestone is a geologic unit in Arkansas, and Oklahoma. It is classified as a Geologic Member in Indiana and Missouri. It dates back to...
    10 KB (478 words) - 02:04, 11 March 2024
  • Thumbnail for St. Peter Sandstone
    thin layer of Glenwood Shale and a much thicker layer of Platteville limestone. Examples can be seen in the Mississippi River Gorge and at Minnehaha...
    7 KB (593 words) - 22:17, 1 June 2025
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    2 KB (59 words) - 17:35, 24 May 2025
  • Thumbnail for Eau Claire Formation
    Dolomite Fort Atkinson Limestone Joachim Formation Kope Formation Lexington Limestone Oneota Dolomite Pecatonica Formation Plattin Formation Scales Shale...
    3 KB (94 words) - 00:37, 31 May 2025
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    1 KB (52 words) - 09:20, 18 November 2024
  • Formation Nachusa Formation Quimbys Mill Formation Scales Shale Wise Lake Formation Middle Everton Formation Pecatonica Formation Plattin Limestone Lower...
    2 KB (78 words) - 06:35, 18 November 2024