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:
Jacumba Mts, Imperial Co., California, USA

Oldest recorded age at locality: 106
Youngest recorded age at locality: 102

mindat Locality ID: 209023
mindat URL: http://www.mindat.org/loc-209023.html

Tectonic Settings:

Total number of sublocalities beneath "Jacumba Mts, Imperial Co., California, USA": 20
Total number of bottom-level sublocalities: 18

Number of Child Localities: 1
Child Localities:
Jacumba District

Latitude: 32°40'34"N
Longitude: 116°2'33"W
Decimal Degree (lat, lon): 32.676111111111,-116.0425

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.

Calcite	Clay	Clinozoisite	Copper	Epidote	Garnet	None	Pyroxene	Quartz	Scheelite
Smectite-vermiculite	Sphalerite

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 C Ca Fe H Mg Na O S Si W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Clay Clinozoisite Copper Epidote Garnet None Pyroxene Quartz Scheelite
Smectite-vermiculite Sphalerite

10 IMA Minerals at location:

Calcite ()*	Diopside ()*	Epidote ()*	Gold ()*	Graphite ()*
Grossular ()*	Montmorillonite ()*	Quartz ()*	Scheelite ()*	Sphalerite ()*

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
Calcite ()*	Calcite	Ca(CO₃)	106	102	2	156787,156793	27770
Diopside ()*	Pyroxene	CaMgSi₂O₆	106	102	4	156776,156781,156787,156788	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	106	102	2	156780,156781	8173
Gold ()*	Copper	Au	106	102	2	156777,156778	30554
Graphite ()*	None	C	106	102	1	156780	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			1	156793	1544
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	106	102	1	156792	1508
Quartz ()*	Quartz	SiO₂	106	102	6	156776,156778,156780,156786,156787,156788	61156
Scheelite ()*	Scheelite	Ca(WO₄)	106	102	1	156782	4894
Sphalerite ()*	Sphalerite	ZnS	106	102	1	156784	21482

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
	NAVDAT-126143	106	102	104±2					126143						222161	Boulder Park, Jacumba District, Jacumba Mts, Imperial Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...