Stoutameyer Branch (Stotameyer Creek), West Augusta, Augusta Co., Virginia, USA
| Latitude & Longitude (WGS84): | 38° 17' 4'' North , 79° 13' 39'' West |
|---|---|
| Latitude & Longitude (decimal): | 38.28444,-79.22750 |
| GeoHash: | G#: dnz9v1kr1 |
| Köppen climate type: | Cfa : Humid subtropical climate |
Wrike and Kearns (2007) reported that boulders and cobbles of miarolitic nepheline syenite occur in the bed of "Stotameyer Creek". On the USGS topographic map this drainage is called Stoutameyer Branch. Material was easily located in that part of the stream adjacent to Stover Shop road, just north of Route 250.
In this gray, dense brittle rock the cavities are highly flattened and occur in planar arrays. Wrike and Kearns (2007) note that the mineral assemblage in the miarolitic cavities is similar to that of the Buck Hill intrusion several miles to the northeast.
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) Reference: Warren Cummings |
| ⓘ Arfvedsonite Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 Reference: Warren Cummings |
| ⓘ 'Chlorite Group' Reference: Warren Cummings |
| ⓘ Fluorite Formula: CaF2 Reference: Robert Rothenberg collection |
List of minerals arranged by Strunz 10th Edition classification
| Group 3 - Halides | |||
|---|---|---|---|
| ⓘ | 'Fluorite' | 3.AB.25 | CaF2 |
| Group 9 - Silicates | |||
| ⓘ | 'Albite' | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | 'Arfvedsonite' | 9.DE.25 | [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals arranged by Dana 8th Edition classification
| Group 9 - NORMAL HALIDES | |||
|---|---|---|---|
| AX2 | |||
| ⓘ | Fluorite | 9.2.1.1 | CaF2 |
| Group 76 - TECTOSILICATES Al-Si Framework | |||
| Al-Si Framework with Al-Si frameworks | |||
| ⓘ | Albite | 76.1.3.1 | Na(AlSi3O8) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | Arfvedsonite | - | [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 |
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Fe | Iron | |
| Fe | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Paleozoic 251.902 - 541 Ma ID: 3187973 | Paleozoic sedimentary rocks Age: Phanerozoic (251.902 - 541 Ma) Lithology: Sedimentary rocks Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
| Devonian 358.9 - 419.2 Ma ID: 2744936 | Chemung Formation (redefined as Foreknobs Formation) Age: Devonian (358.9 - 419.2 Ma) Stratigraphic Name: Foreknobs Formation Description: Chemung Formation (Hall, 1839). Redefined as the Foreknobs Formation (Dennison, 1970). Sandstone and shale, dark-gray and greenish-gray, fine-grained, thin- to thick-bedded, lithic sandstone and interbedded greenish gray, fissile, clay shale. Minor quartz-pebble conglomerate, thin red sandstone, and locally, fossil shell beds. Very thin or absent in southwestern Virginia; thickens to about 2500 feet northeastward in Frederick County. Gradational contact with underlying Brallier Formation and equivalent to part of the Chattanooga Shale to the southwest. Redefined and described as part of the Greenland Gap Group by Dennison (1970). Comments: Appalachian Plateaus and Valley and Ridge Original map source: Virginia Division of Mineral Resources, 2003, Digital Representation of the 1993 Geologic Map of Virginia, Publication 174, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, scale 1:500,000. Lithology: Major:{shale,sandstone}, Minor:{conglomerate} Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
Stoutameyer Branch, West Augusta, Augusta Co., Virginia, USA