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:
Riggs, Silurian Hills, Silver Lake District, San Bernardino Co., California, USA

Oldest recorded age at locality: 946
Youngest recorded age at locality: 74

mindat Locality ID: 278399
mindat URL: http://www.mindat.org/loc-278399.html

Tectonic Settings:

Total number of sublocalities beneath "Riggs, Silurian Hills, Silver Lake District, San Bernardino Co., California, USA": 10
Total number of bottom-level sublocalities: 10

Number of Child Localities: 10
Child Localities:
Alta Mine
Anderson Prospect
Annex Mine (Annex; Silver Hills)
Annex Mine (Mammoth Mine)
Berryhill Mine
Blue White Prospect
Ceramic Mine
Red Copper Occurrence
Riggs Mine (Alta Mine [incorrect])
Van Talc Prospect

Latitude: 35°31'13"N
Longitude: 116°4'26"W
Decimal Degree (lat, lon): 35.520277777778,-116.07388888889

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.

Aragonite	Clay	Copper	None	Rocksalt	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: Ag C Cl H Mg O Pb Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Clay Copper None Rocksalt Talc

4 IMA Minerals at location:

Cerussite ()*	Chlorargyrite ()*	Silver ()*	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
Cerussite ()*	Aragonite	Pb(CO₃)	946	74	1	173836	4979
Chlorargyrite ()*	Rocksalt	AgCl	946	74	1	173836	1382
Silver ()*	Copper	Ag	946	74	1	173836	5186
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	946	74	7	173829,173830,173831,173832,173833,173834,173837	3337

17 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	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Kristen001901	120.2	120.2		206Pb/238U			zircon	nm(-2)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1329
Kristen001902	113.7	113.7		206Pb/238U			zircon	m(1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1330
Kristen001903	115.1	115.1		206Pb/238U			zircon	m(-1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1331
Kristen001904	127	127		206Pb/238U			zircon	m(-2)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1332
Kristen001905	130	130		206Pb/238U			zircon	m(-1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1333
Kristen001906	138.7	138.7		207Pb/235U			zircon	nm(-2)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1334
Kristen001907	138.3	138.3		207Pb/235U			zircon	m(1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1335
Kristen001908	132.1	132.1		207Pb/235U			zircon	m(-1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1336
Kristen001909	154.4	154.4		207Pb/235U			zircon	m(-2)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1337
Kristen001910	176.6	176.6		207Pb/235U			zircon	m(-1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1338
Kristen001911	472	464	468±4	207Pb/206Pb			zircon	nm(-2)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1339
Kristen001912	586	580	583±3	207Pb/206Pb			zircon	m(1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1340
Kristen001913	452	446	449±3	207Pb/206Pb			zircon	m(-1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1341
Kristen001914	603	595	599±4	207Pb/206Pb			zircon	m(-2)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1342
Kristen001915	946	766	856±90	207Pb/206Pb			zircon	m(-1)	Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1343
Kristen001916	134	74	104±30		time of cyrstallization of pluton	high	zircon		Yes	Zircon	211081	Silurian Hills, Silver Lake District, San Bernardino Co., California, USA	Silurian Hills	Walker and Wardlaw (1989)	10.1130/0016-7606(1989)101<1574:IOPAMR>2.3.CO;2	GSAB101_1574	age of Otto Mountain from Kampf et al. (2010), AM95_1344
GSAB101_1574_0001	134	74	Cretaceous	U-Pb	host rock		zircon		Yes	Zircon	205195	Otto Mountain, Baker, Soda Mts, Silver Lake District, San Bernardino Co., California, USA	Otto Mountain	Walker (1989)		GSAB101_1574

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...