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Chimney Rock, Morrill Co., Nebraska, USAi
Regional Level Types
Chimney Rock- not defined -
Morrill Co.County
NebraskaState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 42' 13'' North , 103° 20' 52'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Bayard1,148 (2017)6.0km
McGrew103 (2017)7.5km
Melbeta110 (2017)16.5km
Minatare800 (2017)17.5km
Bridgeport1,521 (2017)21.1km


Silicic ash beds near Chimney Rock.

Chimney Rock is an eroded outlier composed of brule clay including layers of volcanic ash and Arikaree sandstone. The age of the sediments represent a span of time from about 34 million to 23 million years ago. Frontiersmen, fur trapers, settlers, prospectors and miners traveling the Oregon Trail were fascinated by this unique geological formation. Starting about 1844 Chimney Rock was described in many journals written by people crossing the continent in wagon trains. The trails followed the North Platte River and the landmark could be seen from about 30 miles away.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Perrierite-(Ce)
Formula: Ce4MgFe3+2Ti2(Si2O7)2O8
Reference: Roberts, Rapp, & Weber, 1974. Encylopedia of Minerals, p.473; Izett, G. A., & Wilcox, R. E. (1968). Perrierite, chevkinite, and allanite in upper Cenozoic ash beds in the western United States. American Mineralogist: Journal of Earth and Planetary Materials, 53(9-10), 1558-1567.

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
Perrierite-(Ce)9.BE.70Ce4MgFe3+2Ti2(Si2O7)2O8

List of minerals arranged by Dana 8th Edition classification

Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Perrierite-(Ce)56.2.8.3Ce4MgFe3+2Ti2(Si2O7)2O8

List of minerals for each chemical element

OOxygen
O Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
MgMagnesium
Mg Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
SiSilicon
Si Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
TiTitanium
Ti Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
FeIron
Fe Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
CeCerium
Ce Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Roberts, Rapp, & Weber (1974). Encylopedia of Minerals, p.473.
Chimney Rock, Scotts Bluff National Monument, Nebraska, National Park Service.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Chimney_Rock_National_Historic_Site
Wikidata ID:Q1073144

Other Regions, Features and Areas containg this locality

North America PlateTectonic Plate

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