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  2. Columbus Limestone - Wikipedia

    en.wikipedia.org/wiki/Columbus_Limestone

    The Columbus Limestone contains brachiopods, trilobites, bryozoans, mollusks, corals, stromatoporoids and echinoderms (including crinoids). Due to their mid-continent depositional environment, the fossils are almost free of deformation caused by tectonic activity common in the Appalachian Mountains .

  3. Traverse Group - Wikipedia

    en.wikipedia.org/wiki/Traverse_Group

    The Petoskey Formation is an arenaceous limestone named for its locale (Petoskey, Michigan), and contains the eponymous Petoskey stones. The Whiskey Creek Formation is a limestone. The Traverse Group formed as a shallow carbonate shelf during the Devonian period (~419 to 359 Ma), when the most recent supercontinent , Pangea , was just beginning ...

  4. Dunkard Group - Wikipedia

    en.wikipedia.org/wiki/Dunkard_Group

    The Permian Dunkard Group (Pd) is an area of rock, Early Permian in age, in the south of Ohio, southwestern Pennsylvania, West Virginia and the hilltops of the Georges Creek Basin of Maryland. [2]

  5. Marble Cliff Quarry Co. - Wikipedia

    en.wikipedia.org/wiki/Marble_Cliff_Quarry_Co.

    In 1985, the Kaufmans sold the 2,000-acre (8.1 km 2) quarry to investors who filled in and developed the quarry for residential use, including Marble Cliff Commons [6] [2] [3] apartments and Marble Cliff Crossing, a 100 single-family and 60 double-family subdivision built between 1998 and 2003. [7]

  6. Petra - Wikipedia

    en.wikipedia.org/wiki/Petra

    As a result, the location of Petra was lost until the 19th century. [32] [33] Two further Crusader-period castles are known in and around Petra: the first is al-Wu'ayra, situated just north of Wadi Musa. It can be viewed from the road to Little Petra. It is the castle that was seized by a band of Turks with the help of local Muslims and only ...

  7. Kelleys Island, Ohio - Wikipedia

    en.wikipedia.org/wiki/Kelleys_Island,_Ohio

    Kelleys Island is a Devonian limestone and dolomite ridge carved during the Pleistocene era. [5] The first known occupants of Kelleys Island were Algonquian and Iroquoian , possibly including Erie , who travelled through the area to fish and at times lived in the area until 1656.

  8. Podpeč Limestone - Wikipedia

    en.wikipedia.org/wiki/Podpeč_Limestone

    The Podpeč Limestone (also known as Predole Beds) is a geological formation of Pliensbachian-Earliest Toarcian (Early Jurassic) age in southern and southwestern Slovenia, including South-West of Ljubljana or nearby Mount Krim, with other isolated locations such as in the Julian Alps.

  9. Madera Group - Wikipedia

    en.wikipedia.org/wiki/Madera_Group

    The lower section of the group tends to be a gray limestone and the upper an arkosic limestone, and these have been divided into the La Pasada Formation and Alamitos Formation in the southern Sangre de Cristo Mountains. [5] In the Manzano Mountains, the Madera has been divided into the Los Moyos, Wild Cow, and Bursum Formations. [6]