The Rankin Rock Wall

The rock wall includes 107 rock specimens documenting the geologic history of the Appalachian region, including examples of igneous, sedimentary, and metamorphic rocks as well as diverse geologic structures. The specimens are framed by "Elk Stone," part of the Cranberry Gneiss, one of the oldest rocks in North Carolina. The wall is on the ground floor of Rankin Science West, just outside the main office of the Department of Geology.

Specimen Stratigraphy Age Provenance Map Number
Dolostone Blackford Formation 51
Granite 52
Basalt 53
Peridotite and Chromite Day Book Ultramafic body Neoproterozoic 54
Syenite (granite without quartz) Concord Ring Dike Devonian Concord, NC 55
Gabbro 56
Chert 57
Amphibolite 58
Unidentified 59
Sandstone (lithic arenite) 60
Gneiss 61
Fossiliferous Limestone Ordovician Kentucky 62
Rhyolite Mt. Rogers Group Neoproterozoic Mt. Rogers, NC 63
Calcite 64
Granite 65
Pegmatitic Granite Spruce Pine Plutonic suite Paleozoic Spruce Pine, NC 66
Gneiss 67
Schist 68
Limestone (micritic) 69
Calcite 70
Fossiliferous Limestone Ordovician Kentucky? 71
Unidentified 72
Amphibolite Alligator Back Formation Neoproterozoic Spruce Pine, NC 73
Granite 74
Micritic Limestone 75
Porphyritic Gabbro 76
Conglomerate sandstone (arkose) 77
Dolostone with calcite-filled fractures 78
Augen Gneiss 79
Siltstone (calcareous) 80
Sandstone (quartz arenite) 81
Diorite 82
Chromite (in Gabbro) Day Book Ultramafic Body Neoproterozoic 83
Gabbro Bakersville Gabbro Neoproterozoic Bakersville, NC 84
Vesicular Basalt 85
Sandstone (quartz arenite) 86
Breccia Chatham Group Late Triassic Deep River Basin, NC 87
Pyrite Ashe County Copper Deposits Neoproterzoic 88
Mudstone with varves Mt. Rogers Group Neoproterozoic Mt. Rogers Fm. 89
Diorite and Granite 90
Pegmatitic Granite Spruce Pine Plutonic Suite Devonian Spruce Pine, NC 91
Pegmatitic Granite Spruce Pine Plutonic Suite Devonian Spruce Pine, NC 92
Amphibolite 93
Conglomerate 94
Augen Gneiss Cranberry Gneiss Neoproterozoic 95
Amphibolite/Gneiss Alligator Back Formation Neoproterozoic Spruce Pine, NC 96
Granite 97
Gabbro Chatham Group Late Triassic Deep River Basin, NC 98
Amphibolite Alligator Back Formation Neoproterozoic Spruce Pine, NC 99
Diorite (syenite) with granite Concord Ring Dike Devonian Concord, NC 100

Contact

Contact (schedules/visits/questions)
mckinneymuseum@appstate.edu

Director
Dr. Andrew Heckert
(828) 262-7609
heckertab@appstate.edu

Location
108 Rankin Science South
572 Rivers Street
Boone, NC 28608

Hours
Open: 8 a.m. to 5 p.m. M-F (during semester)
Closed: Weekends, University holidays, weather closures

Department of Geology
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