The Mineral Evolution database is currently under development.
The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.
Locality Name:Unnamed Pegmatites, Marshall Pass District, Saguache Co., Colorado, USAOldest recorded age at locality: 203Youngest recorded age at locality: 94mindat Locality ID: 134344mindat URL:http://www.mindat.org/loc-134344.htmlTectonic Settings: Total number of sublocalities beneath "Unnamed Pegmatites, Marshall Pass District, Saguache Co., Colorado, USA": 0Total number of bottom-level sublocalities: 0Latitude: 38°22'31"NLongitude: 106°17'48"WDecimal Degree (lat, lon): 38.375277777778,-106.29666666667
A
This mineral is Anthropogenic.
G
This mineral is directly dated.
B
This mineral is reported as having this age.
Y
This mineral is using an age reported as an element mineralization period.
O
This mineral is using an age calculated from all data at the locality.
R
The age displayed for this mineral originates from a different, non-child locality.
P
The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.
This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.Elements at this locality, including sub-localities: CaCeNbOTaThTiUYElements from minerals reported directly at this locality: Nb O Ti Y Structural Groups for minerals in this locality:
The Lookout claims are a set of 34 claims in Saguache Co., Colorado, in the Marshall Pass uranium district. The district is located about 12 miles southeast of Sargents and spans the Saguache and Gunnison counties. Two of the major ore bodies, including the Lookout 22 body in particular, were found in alluvium at an elevation of approximately 10,000 feet.
Giersdorf_00000795
The Lookout claims are a set of 34 claims in Saguache Co., Colorado, in the Marshall Pass uranium district. The district is located about 12 miles southeast of Sargents and spans the Saguache and Gunnison counties. Two of the major ore bodies, including the Lookout 22 body in particular, were found in alluvium at an elevation of approximately 10,000 feet.
Giersdorf_00000796
The Lookout claims are a set of 34 claims in Saguache Co., Colorado, in the Marshall Pass uranium district. The district is located about 12 miles southeast of Sargents and spans the Saguache and Gunnison counties. Two of the major ore bodies, including the Lookout 22 body in particular, were found in alluvium at an elevation of approximately 10,000 feet.
The ages given are noted by the author to be insufficiently sourced as they are only derived from a single sample. The author expresses that more Marshall Pass uranium minerals should be dated to collect an average age for the set of deposits.
The ages given are noted by the author to be insufficiently sourced as they are only derived from a single sample. The author expresses that more Marshall Pass uranium minerals should be dated to collect an average age for the set of deposits.
The ages given are noted by the author to be insufficiently sourced as they are only derived from a single sample. The author expresses that more Marshall Pass uranium minerals should be dated to collect an average age for the set of deposits.