Collapse feature 242, Mohawk Canyon, Coconino County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Collapse feature 242 | Pipe |
| Mohawk Canyon | Canyon |
| Coconino County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
36° 9' 0'' North , 112° 59' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Supai | 208 (2017) | 29.4km |
A collapse structure (breccia pipe) located in sec. 23, T32N, R7W, G&SRM, 29.4 km (18.3 miles) WSW of Supai (village).
Mineralization is in a breccia pipe in Esplanade Sandstone of the lower Supai. The brecciated sandstone occurs with pyrite-bearing siderite concretions.
This breccia pipe is one of the two most interesting found in the Esplanade Sandstone in the Mohawk Canyon area. The breccia column is clearly visible
in the cliff of Esplanade Sandstone. The breccia is composed of angular fragments of sandstone in a well-cemented matrix. Large goethite nodules, 1 to 3 inches in diameter, are common; these concretions have pyrite in their cores and gamma radioactivity in excess of 2.5 times background. Chemical analyses of pyrite concretions (samples 242-A-C82 and 242-B-C82, table 2)
show anomalous values of Ag (11 and 3 ppm), As (6,800 and 2,800 ppm), Cu (460 and 70 ppm), Fe20 3 (57 and 36%), Hg (0.47 and 0.49 ppm), Mo (140 ppm), Pb (130 and 40 ppm), Se (89 and 15 ppm), and U (34 ppm).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
3 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Goethite Formula: Fe3+O(OH) Description: As large nodules 1 to 3 inches (2.25 to 8 cm) diameter with pyrite cores. |
| ⓘ Pyrite Formula: FeS2 Description: In siderite concretions. |
| ⓘ Siderite Formula: FeCO3 Description: As concretions containing pyrite. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| C | Carbon | |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Siderite | FeCO3 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Colorado PlateauShield
- Mojave DomainDomain
USA
- Arizona
- Grand Canyon EmbaymentBasin
- ⭔Hualapai Indian ReservationReservation
- Colorado PlateauPlateau
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