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:
Sotavento Islands, Cape Verde

Oldest recorded age at locality: 11.3
Youngest recorded age at locality: 0

mindat Locality ID: 131989
mindat URL: http://www.mindat.org/loc-131989.html

Tectonic Settings:

Total number of sublocalities beneath "Sotavento Islands, Cape Verde": 7
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Brava Island
Fogo Island
Maio Island
Santiago 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.

Analcime	Cancrinite-sodalite	Gypsum	Halotrichite	None	Not in a structural group	Perovskite	Pyrochlore	Rocksalt	Sodalite
Sulphur	Titanite

Anhydrite ()*	Gypsum ()*	Halite ()*	Halotrichite ()*	Hydrokenoralstonite ()*
Leucite ()*	Nosean ()*	Perovskite ()*	Pickeringite ()*	Sodalite ()*
Sulphur ()*	Sylvite ()*	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 Ca Cl F Fe H K Mg Na O S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Cancrinite-sodalite Gypsum Halotrichite None Not in a structural group Perovskite Pyrochlore Rocksalt Sodalite
Sulphur Titanite

13 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
Anhydrite ()*	Not in a structural group	Ca(SO₄)	4.8	3.7	1	35441	1588
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	4.8	3.7	1	35441	6890
Halite ()*	Rocksalt	NaCl	4.8	3.7	1	35441	1398
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	4.8	3.7	1	35441	409
Hydrokenoralstonite ()*	Pyrochlore	₂Al₂F₆(H₂O)	4.8	3.7	1	35441	56
Leucite ()*	Analcime	K(AlSi₂O₆)	10.1	2.1	1	35443	233
Nosean ()*	Sodalite Cancrinite-sodalite	Na₈(Si₆Al₆)O₂₄(SO₄)·H₂O	10.1	2.1	1	35445	75
Perovskite ()*	Perovskite	CaTiO₃	2.1	0	1	35439	495
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O	4.8	3.7	1	35441	265
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	2.1	0	1	35439	444
Sulphur ()*	Sulphur	S	4.8	3.7	1	35441	2045
Sylvite ()*	Rocksalt	KCl	4.8	3.7	1	35441	275
Titanite ()*	Titanite	CaTi(SiO₄)O	2.1	0	1	35439	4899

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000572	Carbonatite occurs at a number of localities on the main island of Brava, particularly in the east central area, but also on the small islands of Ilhéu Luiz Carneiro and Ilhéu de Cima lying about 10 km to the north-northeast. For the purposes of this project these occurrences are taken as one locality. MAGMATIC STYLE: Dykes in basement rocks, ijolite and syenite, irregular intrusions and extrusive rocks including lava flows (Cachaco). ASSOCIATED SILICATE ROCKS: Ijolite, syenite, nepheline syenite, phonolite and nephelinite.
Jen_0000573	Carbonatite occurs at a number of localities on the main island of Brava, particularly in the east central area, but also on the small islands of Ilhéu Luiz Carneiro and Ilhéu de Cima lying about 10 km to the north-northeast. For the purposes of this project these occurrences are taken as one locality. MAGMATIC STYLE: Dykes in basement rocks, ijolite and syenite, irregular intrusions and extrusive rocks including lava flows (Cachaco). ASSOCIATED SILICATE ROCKS: Ijolite, syenite, nepheline syenite, phonolite and nephelinite.
Jen_0000574	Carbonatite occurs at a number of localities on the main island of Brava, particularly in the east central area, but also on the small islands of Ilhéu Luiz Carneiro and Ilhéu de Cima lying about 10 km to the north-northeast. For the purposes of this project these occurrences are taken as one locality. MAGMATIC STYLE: Dykes in basement rocks, ijolite and syenite, irregular intrusions and extrusive rocks including lava flows (Cachaco). ASSOCIATED SILICATE ROCKS: Ijolite, syenite, nepheline syenite, phonolite and nephelinite.
Jen_0000575	Carbonatite occurs at a number of localities on the main island of Brava, particularly in the east central area, but also on the small islands of Ilhéu Luiz Carneiro and Ilhéu de Cima lying about 10 km to the north-northeast. For the purposes of this project these occurrences are taken as one locality. MAGMATIC STYLE: Dykes in basement rocks, ijolite and syenite, irregular intrusions and extrusive rocks including lava flows (Cachaco). ASSOCIATED SILICATE ROCKS: Ijolite, syenite, nepheline syenite, phonolite and nephelinite.
Jen_0000579	MAGMATIC STYLE: Three small areas, up to 500 m long, of ‘basement’ rocks include intrusions of carbonatite. ASSOCIATED SILICATE ROCKS: Basanite and nephelinite.
Jen_0000580	MAGMATIC STYLE: Three small areas, up to 500 m long, of ‘basement’ rocks include intrusions of carbonatite. ASSOCIATED SILICATE ROCKS: Basanite and nephelinite.
Jen_0000581	MAGMATIC STYLE: Three small areas, up to 500 m long, of ‘basement’ rocks include intrusions of carbonatite. ASSOCIATED SILICATE ROCKS: Basanite and nephelinite.
Jen_0000582	MAGMATIC STYLE: Three small areas, up to 500 m long, of ‘basement’ rocks include intrusions of carbonatite. ASSOCIATED SILICATE ROCKS: Basanite and nephelinite.
Jen_0000596	There are three distinct complexes i.e. Arruela in the north, Ribiera da Barca midway along the west coast, and Pensamento in the south. For the purpose of this project these have been treated as one locality. MAGMATIC STYLE: Dykes, plugs and tuffs, including globular lapilli. Found within three separate complexes – see below. ASSOCIATED SILICATE ROCKS: Basanite, nephelinite, essexite, ijolite, trachyte and phonolite.
Jen_0000597	There are three distinct complexes i.e. Arruela in the north, Ribiera da Barca midway along the west coast, and Pensamento in the south. For the purpose of this project these have been treated as one locality. MAGMATIC STYLE: Dykes, plugs and tuffs, including globular lapilli. Found within three separate complexes – see below. ASSOCIATED SILICATE ROCKS: Basanite, nephelinite, essexite, ijolite, trachyte and phonolite.
Jen_0000598	There are three distinct complexes i.e. Arruela in the north, Ribiera da Barca midway along the west coast, and Pensamento in the south. For the purpose of this project these have been treated as one locality. MAGMATIC STYLE: Dykes, plugs and tuffs, including globular lapilli. Found within three separate complexes – see below. ASSOCIATED SILICATE ROCKS: Basanite, nephelinite, essexite, ijolite, trachyte and phonolite.
Jen_0000599	There are three distinct complexes i.e. Arruela in the north, Ribiera da Barca midway along the west coast, and Pensamento in the south. For the purpose of this project these have been treated as one locality. MAGMATIC STYLE: Dykes, plugs and tuffs, including globular lapilli. Found within three separate complexes – see below. ASSOCIATED SILICATE ROCKS: Basanite, nephelinite, essexite, ijolite, trachyte and phonolite.
Jen_0000600	There are three distinct complexes i.e. Arruela in the north, Ribiera da Barca midway along the west coast, and Pensamento in the south. For the purpose of this project these have been treated as one locality. MAGMATIC STYLE: Dykes, plugs and tuffs, including globular lapilli. Found within three separate complexes – see below. ASSOCIATED SILICATE ROCKS: Basanite, nephelinite, essexite, ijolite, trachyte and phonolite.
Jen_0000602	MAGMATIC STYLE: Dykes up to 1 m across, veins and two pipe-like bodies 15-30 m wide. ASSOCIATED SILICATE ROCKS: Pyroxenite, essexite and syenite; basanite, ankaramite and trachyte dykes; extrusives include nephelinite.
Jen_0000603	MAGMATIC STYLE: Dykes up to 1 m across, veins and two pipe-like bodies 15-30 m wide. ASSOCIATED SILICATE ROCKS: Pyroxenite, essexite and syenite; basanite, ankaramite and trachyte dykes; extrusives include nephelinite.
Jen_0000604	MAGMATIC STYLE: Dykes up to 1 m across, veins and two pipe-like bodies 15-30 m wide. ASSOCIATED SILICATE ROCKS: Pyroxenite, essexite and syenite; basanite, ankaramite and trachyte dykes; extrusives include nephelinite.

16 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Jen_0000572	1.4	1.4	1.4	U-Pb	zircon	Zircon	214699	Brava Island, Sotavento Islands, Cape Verde	Brava	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000573	2.1	2.1	2.1	K-Ar	biotite		214699	Brava Island, Sotavento Islands, Cape Verde	Brava	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000574	0	0	0	K-Ar			214699	Brava Island, Sotavento Islands, Cape Verde	Brava	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000575	2	2	2	K-Ar			214699	Brava Island, Sotavento Islands, Cape Verde	Brava	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000579	4.2	4.2	4.2	K-Ar	biotite		214701	Fogo Island, Sotavento Islands, Cape Verde	Fogo	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000580	3.7	3.7	3.7	K-Ar	biotite		214701	Fogo Island, Sotavento Islands, Cape Verde	Fogo	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000581	4.1	4.1	4.1	K-Ar	biotite		214701	Fogo Island, Sotavento Islands, Cape Verde	Fogo	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000582	4.8	4.8	4.8	K-Ar	biotite		214701	Fogo Island, Sotavento Islands, Cape Verde	Fogo	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000602	8.9	8.9	8.9				239673	Maio Island, Sotavento Islands, Cape Verde	Maio	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000603	11.3	10.9	11.1±0.2	K-Ar			239673	Maio Island, Sotavento Islands, Cape Verde	Maio	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000604	6.8	6.8	6.8	Rb-Sr			239673	Maio Island, Sotavento Islands, Cape Verde	Maio	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000596	7.7	7.7	7.7				214700	Santiago Island, Sotavento Islands, Cape Verde	Sáo Tiago	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000597	9.2	7.8	8.5±0.7	K-Ar			214700	Santiago Island, Sotavento Islands, Cape Verde	Sáo Tiago	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000598	10.1	9.5	9.8±0.3	K-Ar			214700	Santiago Island, Sotavento Islands, Cape Verde	Sáo Tiago	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000599	2.1	2.1	2.1	Rb-Sr			214700	Santiago Island, Sotavento Islands, Cape Verde	Sáo Tiago	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000600	7.4	7.4	7.4	Rb-Sr			214700	Santiago Island, Sotavento Islands, Cape Verde	Sáo Tiago	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...