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:
Akjoujt (Akjout; Fort Repoux), Inchiri Region, Mauritania

Oldest recorded age at locality: 2501
Youngest recorded age at locality: 2483

mindat Locality ID: 227749
mindat URL: http://www.mindat.org/loc-227749.html

Tectonic Settings:

Total number of sublocalities beneath "Akjoujt (Akjout; Fort Repoux), Inchiri Region, Mauritania": 35
Total number of bottom-level sublocalities: 34

Number of Child Localities: 34
Child Localities:
Akjoujt Mine (Guelb Moghrein Mine)
Akouejat
Amenchika
Anomalie A1
Arierat El Zaoughe
Atomai Nord
Bou Serouai / Guelb Hammar (Km 14)
Camel Tick
El Joul (Ouest)
El Joul Est
El Joul NE
El Khader
El Khader Breche
Françoise
Gleibat Zeilouf
Guelb El Laro
Guelb Moghrein
Guelb Raoui
Guilabet El Louebda
Kaouat El Khadra
Khatt El Bagra
Khemyat El Khadra
Legleitat El Bird
Legleitat El Bird 2
Legleitat El Khader
Masse 1
Masse 3
Nouamghar
Redwood
Sainte-Barbe
St Barbe
St Barbe Est
Tabrinkout
Tamagoth / Arierat El Khader

Latitude: 19°43'22"N
Longitude: 14°21'59"W
Decimal Degree (lat, lon): 19.722777777778,-14.366388888889

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.

Allophane	Amphibole	Arsenic	Arsenopyrite	Beryl	Calcite	Chalcopyrite	Clay	Cobaltite	Copper
Corundum	Cubanite	Feldspar	Fluorite	Löllingite	Malachite	Mica	Molybdenite	Nickeline	None
Not in a structural group	Pentlandite	Pyrite	Quartz	Rutile	Scheelite	Spinel	Tungstite	Wurtzite	Zircon

Actinolite ()*	Albite ()*	Ankerite ()*	Arsenopyrite ()*	Azurite ()*
Beryl ()*	Bismuth ()*	Calcite ()*	Chalcocite ()*	Chalcopyrite ()*
Chrysocolla ()*	Clinosafflorite ()*	Cobaltite ()*	Copper ()*	Cubanite ()*
Cummingtonite ()*	Cuprite ()*	Gold ()*	Graphite ()*	Grunerite ()*
Hematite ()*	Ilmenite ()*	Mackinawite ()*	Magnetite ()*	Malachite ()*
Maldonite ()*	Microcline ()*	Molybdenite ()*	Muscovite ()*	Nickeline ()*
Pentlandite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Rutile ()*
Scheelite ()*	Siderite ()*	Smithsonite ()*	Tenorite ()*	Tremolite ()*
Troilite ()*	Tungstite ()*	Uraninite ()*	Xenotime-(Y) ()*	Zircon ()*

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 As Au Be Bi C Ca Co Cu Fe H K Mg Mo Na Ni O P S Si Ti U W Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Amphibole Arsenic Arsenopyrite Beryl Calcite Chalcopyrite Clay Cobaltite Copper
Corundum Cubanite Feldspar Fluorite Löllingite Malachite Mica Molybdenite Nickeline None
Not in a structural group Pentlandite Pyrite Quartz Rutile Scheelite Spinel Tungstite Wurtzite Zircon

45 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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	2501	2483	1	80623	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	2501	2483	1	80623	8803
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	2501	2483	3	80623,80653,80656	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS	2501	2483	2	80623,80639	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			3	80624,80638,80653	5509
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			1	80627	4286
Bismuth ()*	Arsenic	Bi			1	80656	1966
Calcite ()*	Calcite	Ca(CO₃)	2501	2483	5	80623,80624,80626,80632,80638	27770
Chalcocite ()*	None	Cu₂S			1	80656	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2501	2483	8	80623,80636,80639,80642,80643,80644,80653,80656	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			2	80636,80653	3531
Clinosafflorite ()*	Löllingite	CoAs₂	2501	2483	1	80623	21
Cobaltite ()*	Cobaltite	CoAsS	2501	2483	1	80623	966
Copper ()*	Copper	Cu			1	80636	3846
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃	2501	2483	1	80623	802
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2501	2483	1	80623	327
Cuprite ()*	Not in a structural group	Cu₂O			1	80647	2970
Gold ()*	Copper	Au	2501	2483	2	80623,80652	30554
Graphite ()*	None	C	2501	2483	1	80623	2812
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	2501	2483	1	80623	223
Hematite ()*	Corundum	Fe₂O₃			8	80624,80625,80637,80638,80642,80648,80653,80657	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	80651	5433
Mackinawite ()*	None	(Fe,Ni)_1+xS (x = 0-0.07)	2501	2483	1	80623	451
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2501	2483	12	80623,80625,80626,80631,80632,80637,80639,80641,80642,80647,80649,80657	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	2501	2483	16	80623,80624,80626,80629,80636,80638,80640,80641,80642,80644,80645,80647,80648,80649,80653,80656	12537
Maldonite ()*	None	Au₂Bi	2501	2483	1	80623	88
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	80627	4924
Molybdenite ()*	Molybdenite	MoS₂			1	80639	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	80627	17380
Nickeline ()*	Nickeline	NiAs	2501	2483	1	80623	633
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2501	2483	1	80623	1512
Pyrite ()*	Pyrite	FeS₂			7	80626,80631,80632,80641,80644,80653,80656	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2501	2483	3	80623,80639,80641	9056
Quartz ()*	Quartz	SiO₂	2501	2483	8	80623,80624,80627,80638,80644,80652,80656,80657	61156
Rutile ()*	Rutile	TiO₂			1	80651	5614
Scheelite ()*	Scheelite	Ca(WO₄)			2	80639,80656	4894
Siderite ()*	Calcite	Fe(CO₃)	2501	2483	5	80623,80624,80626,80632,80638	6417
Smithsonite ()*	Calcite	Zn(CO₃)	2501	2483	1	80623	2473
Tenorite ()*	None	CuO			1	80653	1101
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	80631	2562
Troilite ()*	None	FeS	2501	2483	1	80623	1044
Tungstite ()*	Tungstite	WO₃·H₂O			1	80656	118
Uraninite ()*	Fluorite	UO₂	2501	2483	1	80623	2718
Xenotime-(Y) ()*	Zircon	Y(PO₄)	2501	2483	1	80623	939
Zircon ()*	Zircon	Zr(SiO₄)			1	80651	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
GSLSP297_53_main_stage_age	IOCG + Co BIF deposit

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
	GSLSP297_53_main_stage_age	2501	2483	2492±9		main stage of the hydrothermal IOCG mineralization									9786	Akjoujt Mine (Guelb Moghrein Mine), Akjoujt (Akjout; Fort Repoux), Inchiri Region, Mauritania	Guelb Moghrein deposit	Kolb et al. (2008)	10.1144/SP297.4	GSLSP297_53	main stage of the hydrothermal IOCG mineralization

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...