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:
Barlavento Islands, Cape Verde

Oldest recorded age at locality: 5.7
Youngest recorded age at locality: 5.7

mindat Locality ID: 214698
mindat URL: http://www.mindat.org/loc-214698.html

Tectonic Settings:

Total number of sublocalities beneath "Barlavento Islands, Cape Verde": 10
Total number of bottom-level sublocalities: 7

Number of Child Localities: 6
Child Localities:
Boa Vista Island
Sal Island
Santa Luzia Island
Santo Antão Island
São Nicolau Island
São Vicente Island

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.

Amphibole	Analcime	Baryte	Calcioferrite	Calcite	Cancrinite-sodalite	Coronadite	Eudialyte	None	Pyroxene
Rocksalt	Sapphirine	Sodalite	Spinel	Tridymite	Wöhlerite

Aegirine ()*	Aegirine-augite ()*	Analcime ()*	Baryte ()*	Calcite ()*
Diopside ()*	Dolomite ()*	Eudialyte ()*	Halite ()*	Haüyne ()*
Hollandite ()*	Kaersutite ()*	Låvenite ()*	Magnetite ()*	Montgomeryite ()*
Nepheline ()*	Rhönite ()*	Variscite ()*

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 Ba C Ca Cl F Fe H K Mg Mn Na Nb O P S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Analcime Baryte Calcioferrite Calcite Cancrinite-sodalite Coronadite Eudialyte None Pyroxene
Rocksalt Sapphirine Sodalite Spinel Tridymite Wöhlerite

18 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
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	5.7	5.7	1	35437	1022
Aegirine-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆	5.7	5.7	1	35437	286
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O			1	35428	1627
Baryte ()*	Baryte	Ba(SO₄)	5.7	5.7	1	35437	11547
Calcite ()*	Calcite	Ca(CO₃)	5.7	5.7	1	35437	27770
Diopside ()*	Pyroxene	CaMgSi₂O₆	5.7	5.7	1	35437	4135
Dolomite ()*	None	CaMg(CO₃)₂	5.7	5.7	1	35437	9895
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂			1	35428	182
Halite ()*	Rocksalt	NaCl			1	35431	1398
Haüyne ()*	Sodalite Cancrinite-sodalite	Na₃Ca(Si₃Al₃)O₁₂(SO₄)			1	35434	158
Hollandite ()*	Coronadite	Ba(Mn⁴⁺₆Mn³⁺₂)O₁₆	5.7	5.7	1	35437	243
Kaersutite ()*	Amphibole	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂	5.7	5.7	1	35437	179
Låvenite ()*	Wöhlerite	(Na,Ca)₄(Mn²⁺,Fe²⁺)₂(Zr,Ti,Nb)₂(Si₂O₇)₂(O,F)₄			1	35428	58
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	5.7	5.7	1	35437	14899
Montgomeryite ()*	Calcioferrite	Ca₄MgAl₄(PO₄)₆(OH)₄·12H₂O			1	35429	44
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	5.7	5.7	2	35428,35437	884
Rhönite ()*	Sapphirine	Ca₄[Mg₈Fe³⁺₂Ti₂]O₄[Si₆Al₆O₃₆]	5.7	5.7	1	35437	47
Variscite ()*	None	Al(PO₄)·2H₂O			1	35429	301

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000586	MAGMATIC STYLE: Dykes and minor intrusions, including breccias. ASSOCIATED SILICATE ROCKS: Nephelinitic to basanitic lavas and pyroclastics, essexite, ijolite and syenite.

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
	Jen_0000586	5.7	5.7	5.7	Rb-Sr										248670	São Vicente Island, Barlavento Islands, Cape Verde	Sáo Vicente	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...