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:
Les Chaises (Les Chèzes), Meymac, Corrèze, Nouvelle-Aquitaine, France

Oldest recorded age at locality: 520
Youngest recorded age at locality: 156

mindat Locality ID: 48038
mindat URL: http://www.mindat.org/loc-48038.html

Tectonic Settings:

Total number of sublocalities beneath "Les Chaises (Les Chèzes), Meymac, Corrèze, Nouvelle-Aquitaine, France": 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.

Alunite	Apatite	Aragonite	Arsenic	Arsenopyrite	Chalcopyrite	Clay	Columbite	Feldspar	Fluorite
Mica	Molybdenite	None	Pyrite	Quartz	Rutile	Scheelite	Sphalerite	Stannite	Stibnite
Tourmaline

Albite ()*	Arsenopyrite ()*	Beudantite ()*	Bismuth ()*	Bismuthinite ()*
Cannonite ()*	Cassiterite ()*	Cerussite ()*	Chalcopyrite ()*	Ferberite ()*
Fluorite ()*	Meymacite ()*	Molybdenite ()*	Muscovite ()*	Preisingerite ()*
Pyrite ()*	Pyromorphite ()*	Quartz ()*	Rutile ()*	Scheelite ()*
Schorl ()*	Scorodite ()*	Sphalerite ()*	Stannite ()*	Wulfenite ()*

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 B Bi C Ca Cl Cu F Fe H K Mo Na O P Pb S Si Sn Ti W Zn

Elements from minerals reported directly at this locality: Al As B Bi C Ca Cl Cu F Fe H K Mo Na O P Pb S Si Sn Ti W Zn

Structural Groups for minerals in this locality:
Alunite Apatite Aragonite Arsenic Arsenopyrite Chalcopyrite Clay Columbite Feldspar Fluorite
Mica Molybdenite None Pyrite Quartz Rutile Scheelite Sphalerite Stannite Stibnite
Tourmaline

25 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	520	156	8803
Arsenopyrite ()*	Arsenopyrite	FeAsS	520	156	9052
Beudantite ()*	Alunite	PbFe³⁺₃(AsO₄)(SO₄)(OH)₆	270	270	413
Bismuth ()*	Arsenic	Bi	520	156	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	520	156	1935
Cannonite ()*	None	Bi₂O(SO₄)(OH)₂	520	156	26
Cassiterite ()*	Rutile	SnO₂	520	156	5171
Cerussite ()*	Aragonite	Pb(CO₃)	270	270	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	520	156	27198
Ferberite ()*	Columbite	Fe²⁺(WO₄)	520	156	551
Fluorite ()*	Fluorite	CaF₂	520	156	9617
Meymacite ()*	None	WO₃·2H₂O	520	156	10
Molybdenite ()*	Molybdenite	MoS₂	520	156	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	520	156	17380
Preisingerite ()*	None	Bi₃O(AsO₄)₂(OH)	520	156	53
Pyrite ()*	Pyrite	FeS₂	315	315	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	270	270	1725
Quartz ()*	Quartz	SiO₂	520	156	61156
Rutile ()*	Rutile	TiO₂	520	156	5614
Scheelite ()*	Scheelite	Ca(WO₄)	520	156	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	520	156	2705
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	520	156	1153
Sphalerite ()*	Sphalerite	ZnS	520	156	21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	520	156	668
Wulfenite ()*	Scheelite	PbMoO₄	270	270	1655

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000671	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000672	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000673	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000674	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000675	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000676	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000677	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000678	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000679	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000680	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000681	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000682	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000683	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000684	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000685	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000686	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000687	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000688	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Giersdorf_00000689	Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex

19 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	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
Giersdorf_00000671	276	276	276	U-Pb	Primary mineralization of pitchblende/uraninite with pyrite association	high			Yes		Pyrite, Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Age is given for the primary mineralization of the Uranium found in the area
Giersdorf_00000672	270	270	270	Pb	Age for coffinitization of the uraninite and remobilization of U				Yes		Galena	Pb	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Age is derived from a 6 Ma window measured from Pb found in Galena that specifies the duration of the coffinitizaiton process as the source uraninite is altered and remobilized
Giersdorf_00000673	315	315	315	Pb-Pb			uraninite	NBS 981 1	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000674	300	300	300	Pb-Pb			uraninite	NBS 981 2	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000675	342	342	342	Pb-Pb			uraninite	NBS 981 3	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000676	390	390	390	Pb-Pb			uraninite	NBS 981 4	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000677	165	165	165	Pb-Pb			uraninite	NBS 981 5	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000678	250	250	250	Pb-Pb			uraninite	NBS 981 6	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000679	256	256	256	Pb-Pb			uraninite	NBS 981 7	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000680	426	426	426	Pb-Pb			uraninite	NBS 981 8	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000681	267	267	267	Pb-Pb			uraninite	NBS 981 9	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000682	262	262	262	Pb-Pb			uraninite	NBS 981 10	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000683	173	173	173	Pb-Pb			uraninite	NBS 981 11	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000684	255	255	255	Pb-Pb			uraninite	NBS 981 12	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000685	156	156	156	Pb-Pb			uraninite	NBS 981 13	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000686	180	180	180	Pb-Pb			uraninite	NBS 981 14	Yes	Uraninite	Uraninite	U	1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000687	520	520	520	Pb-Pb	The lead release effect of the alteration from uraninite to coffinite is calculated to be 6 Ma on this sample, and is the source of the 6 Ma window of alteration time.		galena	Fanay 574 Galena	Yes	Galena	Galena		1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000688	315	315	315	Pb-Pb			pyrite	Fanay 574 Pyrite	Yes	Pyrite	Pyrite		1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Ages are derived from Pb207/Pb206 ratios after correction
Giersdorf_00000689	175	170	175-170		Age is thought to correspond with the extension tectonism related to the opening of the Atlantic Ocean as well as the Tethys.				Yes				1720	Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France	Margnac Mine	Leroy et al. (1984)	10.1016/0009-2541(84)90119-0	CG45_121	Age is given for a secondary remobilization of the uraninite, which is undetected by mineralogical studies.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...