Shiprock diatreme, Shiprock, San Juan County, New Mexico, USAi
| Regional Level Types | |
|---|---|
| Shiprock diatreme | - not defined - |
| Shiprock | - not defined - |
| San Juan County | County |
| New Mexico | State |
| USA | Country |
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Latitude & Longitude (WGS84):
36° 41' 17'' North , 108° 50' 11'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Shiprock | 8,295 (2011) | 17.1km |
| Beclabito | 317 (2011) | 23.6km |
| Sanostee | 371 (2011) | 29.5km |
| Waterflow | 1,670 (2011) | 32.6km |
| Teec Nos Pos | 730 (2011) | 34.1km |
Mindat Locality ID:
71209
Long-form identifier:
mindat:1:2:71209:2
GUID (UUID V4):
f5c5fd44-02fe-4551-bbc4-0931bd83221a
Other/historical names associated with this locality:
Tsé Bitʼaʼí
Shiprock, located approx. 12 miles southwest of the town of Shiprock, New Mexico, is what is known as a diatreme made up of the rock type minette, fractured volcanic breccia, and mafic dykes. The formation is the erosional remnant of the throat of a maar-diatreme volcano. Shiprock rises approx. 1,580 feet above the high desert plains that surround it; however, the exposed rock seen today was originally formed 2,500 to 3,000 feet below the surface and exposed after several million years of erosion. Radiometric dating on Shiprock has provided a solidification age of the rock at approx. 27 million years ago. It is one of the oldest features of the Navajo Volcanic Field where several other prominent diatremes and minette flows dot the area.
It should also be pointed out that Shiprock is located on the Navajo Nation, and access is strictly forbidden as the Navajo People consider Shiprock a religious and sacred monument and therefore, do not like it when non-Navajo Peoples are caught driving around the base or attempting to rockclimb Shiprock.
A monadnock rising nearly 1,583 feet (482.5 meters) above the high-desert plain of the Navajo Nation in San Juan County, New Mexico, United States. Its peak elevation is 7,177 feet (2,187.5 m) above sea level. It lies about 10.75 miles (17.30 km) southwest of the town of Shiprock, which is named for the peak.
(It) is composed of fractured volcanic breccia and black dikes of igneous rock called minette. It is the erosional remnant of the throat of a volcano, and the volcanic breccia formed in a diatreme. The rock probably was originally formed 2,500–3,000 feet (750–1,000 meters) below the Earth's surface, but it was exposed after millions of years of erosion. Wall-like sheets of minette, known as dikes, radiate away from the central formation. Radiometric age determinations of the minette establish that these volcanic rocks solidified about 27 million years ago. Shiprock is in the northeastern part of the Navajo Volcanic Field — a field that includes intrusions and flows of minette and other unusual igneous rocks that formed about 25 million years ago.
(It) is composed of fractured volcanic breccia and black dikes of igneous rock called minette. It is the erosional remnant of the throat of a volcano, and the volcanic breccia formed in a diatreme. The rock probably was originally formed 2,500–3,000 feet (750–1,000 meters) below the Earth's surface, but it was exposed after millions of years of erosion. Wall-like sheets of minette, known as dikes, radiate away from the central formation. Radiometric age determinations of the minette establish that these volcanic rocks solidified about 27 million years ago. Shiprock is in the northeastern part of the Navajo Volcanic Field — a field that includes intrusions and flows of minette and other unusual igneous rocks that formed about 25 million years ago.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
5 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:
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Forsterite Formula: Mg2SiO4 |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 |
| ⓘ Sanidine Formula: K(AlSi3O8) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Sanidine | 9.FA.30 | K(AlSi3O8) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Forsterite | Mg2SiO4 |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Sanidine | K(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Forsterite | Mg2SiO4 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Sanidine | K(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Forsterite | Mg2SiO4 |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Sanidine | K(AlSi3O8) |
| K | Potassium | |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Sanidine | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Great Plains DomainDomain
USA
- Arizona & Utah
- Apache; Navajo and San Juan Cos.
- Colorado Plateau
- Apache; Navajo and San Juan Cos.
- Colorado PlateauPlateau
- ⭔Navajo Nation Indian ReservationReservation
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References
