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:
Mount Baldy, Mount Baldy District, San Gabriel Mts, Los Angeles Co., California, USA

Oldest recorded age at locality: 1205
Youngest recorded age at locality: 1167

mindat Locality ID: 222909
mindat URL: http://www.mindat.org/loc-222909.html

Tectonic Settings:

Total number of sublocalities beneath "Mount Baldy, Mount Baldy District, San Gabriel Mts, Los Angeles Co., California, USA": 30
Total number of bottom-level sublocalities: 27

Number of Child Localities: 27
Child Localities:
Allison Mine
Andrew Tungsten Mine (Tiffany-Andrew Group; 4 Hi No. 1 Claim; Curtis Claims; Alron No. 1 Claim; Alron No. 2 Claim; Cattle Canyon Placers)
Baldora Mine (Widco Mine)
Chicken Finlay Placer
Coldwater Canyon
Cole Deposit (Neal)
Dime Canyon
Dotson Scheelite Location
Eagle Mine
Ferguson Placer
Glen-Marie Placer (Glen Marie Nos. 1; 2; 3 Placers)
Gold Dollar Mine
Happy Day Placer
Heaton Placer Mine
Holly Placer Mine (Dot Mine)
Home Supply Placer Mine
Horse Shoe Consolidated Placer
Justice Placers (Juatica Placers)
Noverto Placer (Neverto Placer)
Phelps Placer
Poor Fool Placer Mine (Pool Fool Mine)
Queenie Prospect
San Gabriel Canyon Area
San Gabriel Mining Company Prospect
Unnamed Au Prospect (1)
Woodman Placer
Zanteson Placer Mine

Latitude: 34°15'19"N
Longitude: 117°45'19"W
Decimal Degree (lat, lon): 34.255277777778,-117.75527777778

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.

Copper	Molybdenite	None

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: Au Mo S

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Copper Molybdenite None

2 IMA Minerals at location:

Gold ()*	Molybdenite ()*

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
Gold ()*	Copper	Au	1205	1167	4	161523,161526,161529,161530	30554
Molybdenite ()*	Molybdenite	MoS₂	1205	1167	1	161507	5800

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Bradley_2012_125	1205	1167	1186±19	U/Pb			zircon			Yes	Zircon			28941	San Gabriel Mts, Los Angeles Co., California, USA	Mendenhall Peak	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...