Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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:
Pearsoll Peak, Curry Co., Oregon, USA

Oldest recorded age at locality: 163
Youngest recorded age at locality: 163

mindat Locality ID: 213468
mindat URL: http://www.mindat.org/loc-213468.html

Tectonic Settings:

Total number of sublocalities beneath "Pearsoll Peak, Curry Co., Oregon, USA": 19
Total number of bottom-level sublocalities: 19

Number of Child Localities: 19
Child Localities:
B & C Laterite Prospect (Sourdough Flat Laterite; Kalmiopsis Wilderness)
Eagle Mountain Gossan Occurrence
Eagle Mountain Prospect
Eagle's Nest Claim
Empire Prospect (Golden Dream; Higgins)
Gold Basin Placers
Hanscum (Slide Creek Group)
Harry B. Occurrence (Slide Creek Group)
Hay Prospect
Little Siberia
Marcella Occurrence (Slide Creek Group)
McCaleb No. 1 (Part Of McCaleb Group; McCaleb's Sourdough No. 1)
McCaleb No. 2 (Part Of McCaleb Group)
Olive B. Occurrence (Slide Creek Group)
Pearsoll Peak
Pearsoll Peak Dunite Occurrence
Unnamed Chromium Prospect (MRDS - 10128463)
Wonder Group (Wonder 1-3; Kalmiopsis Wilderness; Sourdough No. 2)
Young Claim (Crater Lode)

Latitude: 42°16'47"N
Longitude: 123°50'31"W
Decimal Degree (lat, lon): 42.279722222222,-123.84194444444

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.

Chalcopyrite	Clay	None	Pyrite	Spinel	Talc

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: Cr Cu Fe H Mg O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Chalcopyrite Clay None Pyrite Spinel Talc

4 IMA Minerals at location:

Chalcopyrite ()*	Chromite ()*	Pyrite ()*	Talc ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	257088	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	163	163	11	257089,257090,257093,257094,257096,257097,257098,257099,257100,257101,257104	3902
Pyrite ()*	Pyrite	FeS₂			1	257088	39462
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	163	163	5	257090,257096,257098,257101,257104	3337

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
podchrome-00404	163	163	Middle Jurassic (164-162 Ma)	Cr	150001	Little Siberia, Pearsoll Peak, Curry Co., Oregon, USA	Little Siberia	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00405	163	163	Middle Jurassic (164-162 Ma)	Cr	150267	McCaleb No. 2 (Part Of McCaleb Group), Pearsoll Peak, Curry Co., Oregon, USA	McCaleb's Sourdough No. 2	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00403	163	163	Middle Jurassic (164-162 Ma)	Cr	150866	Pearsoll Peak, Pearsoll Peak, Curry Co., Oregon, USA	Pearsoll	Moiser et al. (2012)	USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...