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:
Boukdema Deposit (Kef Semmah Deposit), Bordj Bou Arréridj Province, Algeria

Oldest recorded age at locality: 164
Youngest recorded age at locality: 100

mindat Locality ID: 270091
mindat URL: http://www.mindat.org/loc-270091.html

Tectonic Settings:

Total number of sublocalities beneath "Boukdema Deposit (Kef Semmah Deposit), Bordj Bou Arréridj Province, Algeria": 0
Total number of bottom-level sublocalities: 0

Latitude: 36°12'36"N
Longitude: 4°53'24"E
Decimal Degree (lat, lon): 36.21,4.89

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.

Arsenopyrite	Baryte	Calcite	Clay	None	Rocksalt	Sphalerite	Talc	Tetrahedrite

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: As Ba C Ca Cu Fe H Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: As Ba C Ca Cu Fe H Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Arsenopyrite Baryte Calcite Clay None Rocksalt Sphalerite Talc Tetrahedrite

8 IMA Minerals at location:

Arsenopyrite ()*	Baryte ()*	Dolomite ()*	Galena ()*	Siderite ()*
Sphalerite ()*	Talc ()*	Tennantite-(Fe) ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	164	100	9052
Baryte ()*	Baryte	Ba(SO₄)	164	100	11547
Dolomite ()*	None	CaMg(CO₃)₂	164	100	9895
Galena ()*	Rocksalt	PbS	164	100	24243
Siderite ()*	Calcite	Fe(CO₃)	164	100	6417
Sphalerite ()*	Sphalerite	ZnS	164	100	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	164	100	3337
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	164	100	1803

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
	sedexmvt-00002	164	100	Late Jurassic-Early Cretaceous		host rock age									270091	Boukdema Deposit (Kef Semmah Deposit), Bordj Bou Arréridj Province, Algeria	Boukdema-Kef Semmah	Taylor et al. (2009)		USGSOFR2009_1297

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...