Hannah Ridge Formation, Neptune Range

Hannah Ridge Formation Base not exposed Early Cambrian to Neoproterozoic Argillaceous sandstone/shale Eastern Neptune Range... 

The Hannah Ridge Formation in the eastern Neptune Range is unconformably overlain by the fossilifer-ous Middle Cambrian Nelson Limestone followed by a succession of Paleozoic formations identified in Table 8.3. The Nelson Limestone and the overlying Paleozoic formations are not present in the Schmidt and Williams hills. 

Fig. 8.8 The basement rocks of the Neptune Range in the Pensacola Mountains consist of the isoclinally folded metasedimentary rocks of the Hannah Ridge Formation (defined by Rowell et al. 2001) which is unconformably overlain by the Nelson Limestone (late Middle Cambrian) followed by the Gambacorta Rhyolite and the Wiens Formation (Cambro-Ordovician). These basement rocks were locally intruded by the Serpan Granite and by the hypabyssal Mount Hawkes Porphyry. The Paleozoic sedimentary rocks include the Gale Mudstone which is a trUite of Permian age which resembles the Buckeye Tillite of the Beacon Supergroup in the Ohio Range of the Horlick Mountains (Adapted from Schmidt and Ford 1969 with information from Stump 1995)...

The sedimentary rocks of the Hannah Ridge Formation in the Neptune Range were folded and eroded prior to... 

Hannah Ridge Formation, Eastern Neptune Range (Defined by Rowell et al. 2001) ... 

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