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:
New Melones Dam, West Belt, Calaveras Co., California, USA

Oldest recorded age at locality: 100
Youngest recorded age at locality: 100

mindat Locality ID: 3447
mindat URL: http://www.mindat.org/loc-3447.html

Tectonic Settings:

Total number of sublocalities beneath "New Melones Dam, West Belt, Calaveras Co., California, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Moccasin
Wilkinson Florence Occurrence (C. Henry)

Latitude: 37°56'29"N
Longitude: 120°32'23"W
Decimal Degree (lat, lon): 37.941388888889,-120.53972222222

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.

Amphibole	Analcime	Axinite	Calcite	Chalcopyrite	Chlorite	Clay	Clinozoisite	Copper	Corundum
Epidote	Feldspar	Mica	None	Palygorskite	Pyrite	Pyroxene	Quartz	Rutile	Scapolite
Spinel	Titanite

Actinolite ()*	Aegirine ()*	Albite ()*	Analcime ()*	Axinite-(Fe) ()*
Calcite ()*	Chalcopyrite ()*	Clinochlore ()*	Epidote ()*	Gold ()*
Hematite ()*	Magnetite ()*	Marialite ()*	Muscovite ()*	Palygorskite ()*
Paragonite ()*	Pyrite ()*	Quartz ()*	Riebeckite ()*	Rutile ()*
Titanite ()*

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: Al Au B C Ca Cl Cu Fe H K Mg Na O S Si Ti

Elements from minerals reported directly at this locality: Al B C Ca Cu Fe H Mg O S Si

Structural Groups for minerals in this locality:
Amphibole Analcime Axinite Calcite Chalcopyrite Chlorite Clay Clinozoisite Copper Corundum
Epidote Feldspar Mica None Palygorskite Pyrite Pyroxene Quartz Rutile Scapolite
Spinel Titanite

21 IMA Minerals at location:

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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	100	100	0		3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	100	100	1	153522	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	100	100	1	153522	8803
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	100	100	1	153522	1627
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	100	100	0		260
Calcite ()*	Calcite	Ca(CO₃)	100	100	0		27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	100	100	0		27198
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	100	100	0		1756
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	100	100	0		8173
Gold ()*	Copper	Au	100	100	1	153523	30554
Hematite ()*	Corundum	Fe₂O₃	100	100	1	153522	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	100	100	1	153522	14899
Marialite ()*	Scapolite	Na₄Al₃Si₉O₂₄Cl	100	100	1	153522	139
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	100	100	1	153522	17380
Palygorskite ()*	Palygorskite Clay	(Mg,Al)₂Si₄O₁₀(OH)·4H₂O	100	100	0		306
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂	100	100	1	153522	247
Pyrite ()*	Pyrite	FeS₂	100	100	1	153522	39462
Quartz ()*	Quartz	SiO₂	100	100	1	153522	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	100	100	1	153522	375
Rutile ()*	Rutile	TiO₂	100	100	1	153522	5614
Titanite ()*	Titanite	CaTi(SiO₄)O	100	100	1	153522	4899

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
	Mo-00156	100	100								Yes		Molybdenite	Mo	16293	Calaveras Co., California, USA	Calaveras County	Brock (1972)	10.1130/0016-7606(1972)83[3391:GOGHSC]2.0.CO;2	GSAB83_3391

Sample	Source Locality	Reference URL
X050007	New Melones Dam, West Belt, Calaveras Co., California, USA	https://rruff.info/X050007

All locality data graciously provided by mindat.org

All age data...