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:
Phonolitic Pyroclastic Flow, Piansano, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy

Oldest recorded age at locality: 1
Youngest recorded age at locality: 0.236

mindat Locality ID: 68281
mindat URL: http://www.mindat.org/loc-68281.html

Tectonic Settings:

Total number of sublocalities beneath "Phonolitic Pyroclastic Flow, Piansano, Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Apatite	Baryte	Calcite	Diaspore	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: Ba C Ca F Fe H O P S

Elements from minerals reported directly at this locality: Ba C Ca F Fe H O P S

Structural Groups for minerals in this locality:
Apatite Baryte Calcite Diaspore None

4 IMA Minerals at location:

Baryte ()*	Calcite ()*	Fluorapatite ()*	Goethite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	1	0.236	11547
Calcite ()*	Calcite	Ca(CO₃)	1	0.236	27770
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	0.236	2740
Goethite ()*	Diaspore	FeO(OH)	1	0.236	7437

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_0149	Trachyte, poggio translates to "Knoll"
Michelle_0150_c	Ignimbrite C of Locardi
Michelle_0151	(Tufo rosso a scorie nere auct.)
Michelle_0152	Black pozzolana (Ignimbrite b?)
Michelle_0153	Lc-Phonolite
Michelle_0154	Tephritic Lc-phonolite

6 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID	Age Notes
Michelle_0149	0.292	0.236	0.264±0.028	K-Ar	Age of trachyte	sanidine	10	Yes	Sanidine	5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	Poggio Cavaliere	Fornaseri (1985)	RDSIMF40_73	Age of trachyte
Michelle_0150_c	0.46	0.38	0.420±0.04	K-Ar	Age of Ignimbrite C of Locardi	sanidine	VS47C	Yes	Sanidine	5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	La Rocca	Fornaseri (1985)	RDSIMF40_73	Age of Ignimbrite C of Locardi
Michelle_0151	0.64	0.4	0.520±0.12	K-Ar		sanidine	9	Yes	Sanidine	5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	C.le Umilta	Fornaseri (1985)	RDSIMF40_73
Michelle_0152	0.86	0.42	0.640±0.22	K-Ar		sanidine	8	Yes	Sanidine	5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	C.le Servelli	Fornaseri (1985)	RDSIMF40_73
Michelle_0153	0.91	0.49	0.700±0.21	K-Ar	Age of lc-phonolite	sanidine	7	Yes	Sanidine	5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	San Rocco	Fornaseri (1985)	RDSIMF40_73	Age of lc-phonolite
Michelle_0154	1	0.64	0.820±0.18	K-Ar	Age of tephritic lc-phonolite	sanidine	6	Yes	Sanidine	5749	Vico Volcanic Complex (Vico Lake), Viterbo Province, Lazio, Italy	San Martino	Fornaseri (1985)	RDSIMF40_73	Age of tephritic lc-phonolite

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...