Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Tachov District, Plzeň Region, Czech Republic

Oldest recorded age at locality: 262
Youngest recorded age at locality: 155

mindat Locality ID: 232034
mindat URL: http://www.mindat.org/loc-232034.html

Tectonic Settings:

Total number of sublocalities beneath "Tachov District, Plzeň Region, Czech Republic": 34
Total number of bottom-level sublocalities: 25

Number of Child Localities: 11
Child Localities:
Bezdružice
Černošín
Chodová Planá
Hlinné
Konstantinovy Lázně
Michalovy Hory
Mýto (Mauthdorf)
Oldřichov (Ullersreith)
Planá U Mariánských Lázní
Stříbro
Vítkov II

Latitude: 49°51'57"N
Longitude: 12°51'39"E
Decimal Degree (lat, lon): 49.865833333333,12.860833333333

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.

Acanthite	Allophane	Alunite	Amorphous	Amphibole	Andalusite	Apatite	Aragonite	Arsenic	Arsenolite
Arsenopyrite	Autunite	Baryte	Bournonite	Brannerite	Brochantite	Calcite	Chalcopyrite	Chlorite	Clay
Clinozoisite	Cobaltite	Copper	Corundum	Covellite	Digenite	Epidote	Epsomite	Ettringite	Feldspar
Fluorite	Garnet	Gypsum	Harmotome	Löllingite	Linarite	Malachite	Marcasite	Melanterite	Mica
Minium	Nickeline	None	Not in a structural group	Olivine	Palygorskite	Pentlandite	Perovskite	Phosphuranylite	Polybasite
Prehnite	Pyrite	Pyrochlore	Pyroxene	Quartz	Rhodonite	Rocksalt	Rutile	Scheelite	Skutterudite
Sphalerite	Spinel	Staurolite	Stibnite	Symplesite	Tetradymite	Tetrahedrite	Titanite	Topaz	Ullmannite
Vivianite	Wollastonite	Wurtzite	Wölsendorfite	Xanthoconite	Zinkenite	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: Ag Al As Au Ba Bi C Ca Cd Ce Cl Co Cu F Fe H Hg K Mg Mn Na Ni O P Pb S Sb Se Si Sn Sr Te Th Ti U V W Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Allophane Alunite Amorphous Amphibole Andalusite Apatite Aragonite Arsenic Arsenolite
Arsenopyrite Autunite Baryte Bournonite Brannerite Brochantite Calcite Chalcopyrite Chlorite Clay
Clinozoisite Cobaltite Copper Corundum Covellite Digenite Epidote Epsomite Ettringite Feldspar
Fluorite Garnet Gypsum Harmotome Löllingite Linarite Malachite Marcasite Melanterite Mica
Minium Nickeline None Not in a structural group Olivine Palygorskite Pentlandite Perovskite Phosphuranylite Polybasite
Prehnite Pyrite Pyrochlore Pyroxene Quartz Rhodonite Rocksalt Rutile Scheelite Skutterudite
Sphalerite Spinel Staurolite Stibnite Symplesite Tetradymite Tetrahedrite Titanite Topaz Ullmannite
Vivianite Wollastonite Wurtzite Wölsendorfite Xanthoconite Zinkenite Zircon

150 IMA Minerals at location:

Acanthite ()*	Albite ()*	Anatase ()*	Andalusite ()*	Andradite ()*
Anglesite ()*	Ankerite ()*	Annabergite ()*	Aragonite ()*	Arsenic ()*
Arsenolite ()*	Arsenopyrite ()*	Athabascaite ()*	Augite ()*	Autunite ()*
Azurite ()*	Babingtonite ()*	Baryte ()*	Barytocalcite ()*	Bassetite ()*
Becquerelite ()*	Berzelianite ()*	Beudantite ()*	Bindheimite ()*	Bismuth ()*
Bismuthinite ()*	Bornite ()*	Brannerite ()*	Breithauptite ()*	Brochantite ()*
Calciouranoite ()*	Calcite ()*	Cassiterite ()*	Cerussite ()*	Chalcocite ()*
Chalcopyrite ()*	Chapmanite ()*	Chrysocolla ()*	Cinnabar ()*	Clarkeite ()*
Clausthalite ()*	Clinochlore ()*	Clinozoisite ()*	Cobaltite ()*	Coffinite ()*
Covellite ()*	Cuprosklodowskite ()*	Curite ()*	Dewindtite ()*	Digenite ()*
Diopside ()*	Dolomite ()*	Epidote ()*	Epsomite ()*	Erythrite ()*
Eskebornite ()*	Eucairite ()*	Ferroselite ()*	Florencite-(Ce) ()*	Fluorite ()*
Forsterite ()*	Fülöppite ()*	Galena ()*	Geffroyite ()*	Gibbsite ()*
Gold ()*	Goslarite ()*	Graphite ()*	Greenockite ()*	Gypsum ()*
Hakite-(Hg) ()*	Harmotome ()*	Hematite ()*	Hessite ()*	Hörnesite ()*
Hydrozincite ()*	Ilmenite ()*	Jarosite ()*	Kaersutite ()*	Kermesite ()*
Köttigite ()*	Kyanite ()*	Linarite ()*	Löllingite ()*	Magnetite ()*
Malachite ()*	Marcasite ()*	Melanterite ()*	Minium ()*	Muscovite ()*
Naumannite ()*	Nevskite ()*	Nickeline ()*	Nickelskutterudite ()*	Opal ()*
Palygorskite ()*	Gersdorffite-Pa3 ()*	Uranophane-β ()*	Pharmacolite ()*	Phaunouxite ()*
Phosphuranylite ()*	Picropharmacolite ()*	Polybasite ()*	Poubaite ()*	Prehnite ()*
Proustite ()*	Pyrargyrite ()*	Pyrite ()*	Pyromorphite ()*	Pyrostilpnite ()*
Pyrrhotite ()*	Quartz ()*	Rammelsbergite ()*	Rauenthalite ()*	Rickardite ()*
Roscoelite ()*	Rucklidgeite ()*	Rutile ()*	Safflorite ()*	Scheelite ()*
Schröckingerite ()*	Siderite ()*	Silver ()*	Skutterudite ()*	Soddyite ()*
Součekite ()*	Sphalerite ()*	Staurolite ()*	Stephanite ()*	Stibnite ()*
Stützite ()*	Symplesite ()*	Tennantite-(Fe) ()*	Tetrahedrite-(Zn) ()*	Thaumasite ()*
Thorite ()*	Tiemannite ()*	Titanite ()*	Todorokite ()*	Topaz ()*
Tsumoite ()*	Ullmannite ()*	Umangite ()*	Uraninite ()*	Uranocircite-II ()*
Uranophane-α ()*	Uranosphaerite ()*	Wollastonite ()*	Zinkenite ()*	Zircon ()*

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
Acanthite ()*	Acanthite	Ag₂S	237	170	3	47250,47257,47268	2793
Albite ()*	Feldspar	Na(AlSi₃O₈)	191	179	2	47246,47267	8803
Anatase ()*	Not in a structural group	TiO₂	191	179	2	47244,47267	2162
Andalusite ()*	Andalusite	Al₂SiO₅			2	47243,47246	1310
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃			1	47259	1534
Anglesite ()*	Baryte	Pb(SO₄)	237	170	1	47268	2734
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	237	170	4	47257,47268,47270,47272	3092
Annabergite ()*	Vivianite	Ni₃(AsO₄)₂·8H₂O			2	47257,47266	445
Aragonite ()*	Aragonite	Ca(CO₃)	237	170	2	47257,47268	3250
Arsenic ()*	Arsenic	As	191	179	2	47266,47267	379
Arsenolite ()*	Arsenolite	As₂O₃			1	47266	231
Arsenopyrite ()*	Arsenopyrite	FeAsS	237	170	3	47267,47268,47269	9052
Athabascaite ()*	None	Cu₅Se₄	191	179	1	47267	18
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆			1	47249	2060
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	262	258	1	47274	1272
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	237	170	3	47257,47258,47268	5509
Babingtonite ()*	Rhodonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)			1	47259	161
Baryte ()*	Baryte	Ba(SO₄)	237	170	5	47250,47257,47268,47270,47272	11547
Barytocalcite ()*	None	BaCa(CO₃)₂	237	170	1	47268	83
Bassetite ()*	None	Fe²⁺(UO₂)₂(PO₄)₂(H₂O)₁₀	191	179	1	47267	51
Becquerelite ()*	None	Ca(UO₂)₆O₄(OH)₆·8H₂O	262	258	1	47274	92
Berzelianite ()*	None	Cu_2-xSe (x ≈ 0.12)	191	179	1	47267	66
Beudantite ()*	Alunite	PbFe³⁺₃(AsO₄)(SO₄)(OH)₆	237	170	1	47268	413
Bindheimite ()*	Pyrochlore	Pb₂Sb⁵⁺₂O₇	237	170	1	47268	450
Bismuth ()*	Arsenic	Bi	191	179	3	47257,47266,47267	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	191	179	2	47266,47267	1935
Bornite ()*	None	Cu₅FeS₄	191	179	3	47260,47266,47267	5516
Brannerite ()*	Brannerite	UTi₂O₆	262	179	2	47267,47274	248
Breithauptite ()*	Nickeline	NiSb			1	47257	175
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	237	170	3	47250,47258,47268	1633
Calciouranoite ()*	Wölsendorfite	(Ca,Ba,Pb,K,Na)U₂O₇·5H₂O	191	179	1	47267	4
Calcite ()*	Calcite	Ca(CO₃)	262	170	11	47250,47253,47257,47258,47260,47266,47267,47268,47270,47272,47274	27770
Cassiterite ()*	Rutile	SnO₂	237	170	2	47244,47269	5171
Cerussite ()*	Aragonite	Pb(CO₃)	237	170	3	47257,47268,47272	4979
Chalcocite ()*	None	Cu₂S	191	179	3	47257,47266,47267	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	262	170	10	47250,47257,47258,47260,47267,47268,47269,47270,47272,47274	27198
Chapmanite ()*	None	Fe³⁺₂Sb³⁺(Si₂O₅)O₃(OH)			1	47251	31
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	237	170	1	47268	3531
Cinnabar ()*	None	HgS			1	47241	2600
Clarkeite ()*	None	Na(UO₂)O(OH)·nH₂O	191	179	1	47267	18
Clausthalite ()*	Rocksalt	PbSe	262	179	3	47260,47267,47274	281
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	191	179	1	47267	1756
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			1	47254	1025
Cobaltite ()*	Cobaltite	CoAsS	191	179	2	47257,47267	966
Coffinite ()*	Zircon	U(SiO₄)·nH₂O	262	179	2	47267,47274	566
Covellite ()*	Covellite	CuS	191	179	1	47267	4165
Cuprosklodowskite ()*	None	Cu(UO₂)₂(SiO₃OH)₂·6H₂O	191	179	1	47267	58
Curite ()*	None	Pb_3+x[(UO₂)₄O_4+x(OH)_3-x]₂·2H₂O	262	258	1	47274	51
Dewindtite ()*	Phosphuranylite	H₂Pb₃(UO₂)₆O₄(PO₄)₄·12H₂O	191	179	1	47267	82
Digenite ()*	Digenite	Cu_1.8S	191	179	1	47267	1027
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	47249	4135
Dolomite ()*	None	CaMg(CO₃)₂	237	170	10	47250,47251,47257,47258,47260,47266,47267,47268,47270,47272	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	191	179	3	47257,47259,47267	8173
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	237	170	1	47268	484
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O			2	47257,47266	814
Eskebornite ()*	Chalcopyrite	CuFeSe₂	191	179	1	47267	26
Eucairite ()*	None	CuAgSe	191	179	1	47267	54
Ferroselite ()*	Marcasite	FeSe₂	191	179	1	47267	51
Florencite-(Ce) ()*	Alunite	CeAl₃(PO₄)₂(OH)₆	191	179	1	47267	73
Fluorite ()*	Fluorite	CaF₂	237	170	3	47259,47268,47272	9617
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	47249	1188
Fülöppite ()*	None	Pb₃Sb₈S₁₅			1	47251	55
Galena ()*	Rocksalt	PbS	262	170	10	47250,47257,47258,47260,47266,47267,47268,47270,47272,47274	24243
Geffroyite ()*	Pentlandite	(Cu,Fe,Ag)₉Se₈	191	179	1	47267	10
Gibbsite ()*	None	Al(OH)₃	237	170	1	47268	504
Gold ()*	Copper	Au			1	47244	30554
Goslarite ()*	Epsomite	Zn(SO₄)·7H₂O	237	170	1	47268	188
Graphite ()*	None	C			1	47246	2812
Greenockite ()*	Wurtzite	CdS	237	170	1	47268	717
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	237	170	2	47266,47268	6890
Hakite-(Hg) ()*	Tetrahedrite	Cu₆(Cu₄Hg₂)Sb₄Se₁₃	191	179	1	47267	12
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O	237	170	1	47268	290
Hematite ()*	Corundum	Fe₂O₃	262	170	4	47244,47267,47268,47274	14640
Hessite ()*	None	Ag₂Te	191	179	1	47267	804
Hörnesite ()*	Vivianite	Mg₃(AsO₄)₂·8H₂O			1	47266	103
Hydrozincite ()*	None	Zn₅(CO₃)₂(OH)₆			1	47257	1066
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	47244	5433
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			1	47250	2228
Kaersutite ()*	Amphibole	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂			2	47249,47256	179
Kermesite ()*	None	Sb₂OS₂			1	47253	230
Köttigite ()*	Vivianite	Zn₃(AsO₄)₂·8H₂O			3	47250,47257,47258	60
Kyanite ()*	Not in a structural group	Al₂OSiO₄			5	47242,47244,47245,47246,47247	1507
Linarite ()*	Linarite	CuPb(SO₄)(OH)₂	237	170	3	47250,47258,47268	987
Löllingite ()*	Löllingite	FeAs₂	191	179	2	47266,47267	762
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			4	47244,47249,47257,47259	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	237	170	4	47250,47257,47258,47268	12537
Marcasite ()*	Marcasite	FeS₂	237	170	4	47257,47266,47267,47268	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	237	170	1	47268	915
Minium ()*	Minium	Pb²⁺₂Pb⁴⁺O₄	237	170	1	47268	247
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	47246	17380
Naumannite ()*	Not in a structural group	Ag₂Se	191	179	1	47267	192
Nevskite ()*	Tetradymite	Bi(Se,S)	262	258	1	47274	6
Nickeline ()*	Nickeline	NiAs	191	179	4	47257,47258,47266,47267	633
Nickelskutterudite ()*	Skutterudite Perovskite	(Ni,Co,Fe)As₃			1	47257	176
Opal ()*	Amorphous	SiO₂·nH₂O	237	170	2	47249,47268	2994
Palygorskite ()*	Palygorskite Clay	(Mg,Al)₂Si₄O₁₀(OH)·4H₂O	237	170	1	47268	306
Gersdorffite-Pa3 ()*	Pyrite	NiAsS			1	47257	767
Uranophane-β ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	262	179	2	47267,47274	144
Pharmacolite ()*	Gypsum	Ca(AsO₃OH)·2H₂O			1	47266	105
Phaunouxite ()*	None	Ca₃(AsO₄)₂·11H₂O			1	47266	14
Phosphuranylite ()*	Phosphuranylite	KCa(H₃O)₃(UO₂)₇(PO₄)₄O₄·8H₂O	262	258	1	47274	182
Picropharmacolite ()*	None	Ca₄Mg(AsO₃OH)₂(AsO₄)₂·11H₂O			1	47266	99
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]			1	47250	716
Poubaite ()*	Tetradymite	PbBi₂(Se,Te,S)₄			1	47260	6
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	47259	1898
Proustite ()*	None	Ag₃AsS₃	191	179	4	47250,47257,47266,47267	733
Pyrargyrite ()*	None	Ag₃SbS₃			1	47257	1425
Pyrite ()*	Pyrite	FeS₂	262	170	13	47250,47251,47254,47257,47258,47259,47266,47267,47268,47269,47270,47272,47274	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	237	170	2	47268,47272	1725
Pyrostilpnite ()*	Xanthoconite	Ag₃SbS₃			1	47253	84
Pyrrhotite ()*	Nickeline	Fe₇S₈	237	170	4	47254,47257,47268,47269	9056
Quartz ()*	Quartz	SiO₂	262	170	14	47247,47249,47250,47251,47257,47258,47260,47266,47267,47268,47269,47270,47272,47274	61156
Rammelsbergite ()*	Löllingite	NiAs₂	191	179	4	47257,47258,47266,47267	233
Rauenthalite ()*	None	Ca₃(AsO₄)₂·10H₂O			1	47266	23
Rickardite ()*	None	Cu_3-xTe₂			1	47260	52
Roscoelite ()*	Mica	KV³⁺₂(Si₃Al)O₁₀(OH)₂			1	47266	253
Rucklidgeite ()*	Tetradymite	PbBi₂Te₄			1	47260	64
Rutile ()*	Rutile	TiO₂	191	179	2	47244,47267	5614
Safflorite ()*	Löllingite	CoAs₂	191	179	2	47266,47267	317
Scheelite ()*	Scheelite	Ca(WO₄)	237	170	2	47254,47269	4894
Schröckingerite ()*	None	NaCa₃(UO₂)(SO₄)(CO₃)₃F·10H₂O	191	179	1	47267	128
Siderite ()*	Calcite	Fe(CO₃)	237	170	2	47244,47268	6417
Silver ()*	Copper	Ag	237	170	5	47250,47257,47266,47267,47268	5186
Skutterudite ()*	Skutterudite Perovskite	CoAs₃	191	179	3	47257,47266,47267	531
Soddyite ()*	None	(UO₂)₂(SiO₄)(H₂O)₂	191	179	1	47267	44
Součekite ()*	Bournonite	CuPbBi(S,Se)₃			1	47260	6
Sphalerite ()*	Sphalerite	ZnS	262	170	10	47250,47251,47257,47258,47266,47267,47268,47270,47272,47274	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)			1	47244	978
Stephanite ()*	None	Ag₅SbS₄			1	47257	586
Stibnite ()*	Stibnite	Sb₂S₃			2	47252,47257	3418
Stützite ()*	None	Ag_5-xTe₃ (x = 0.24-0.36)	191	179	1	47267	92
Symplesite ()*	Symplesite	Fe²⁺₃(AsO₄)₂·8H₂O			1	47266	92
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃			2	47250,47257	1803
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	191	179	2	47258,47267	5317
Thaumasite ()*	Ettringite	Ca₃Si(OH)₆(CO₃)(SO₄)·12H₂O			1	47259	183
Thorite ()*	Zircon	Th(SiO₄)	191	179	1	47267	1006
Tiemannite ()*	Sphalerite	HgSe	191	179	1	47267	83
Titanite ()*	Titanite	CaTi(SiO₄)O			1	47259	4899
Todorokite ()*	None	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂·3-4H₂O			1	47257	433
Topaz ()*	Topaz	Al₂SiO₄F₂			1	47244	1476
Tsumoite ()*	Tetradymite	BiTe	191	179	1	47267	100
Ullmannite ()*	Ullmannite	NiSbS	237	170	1	47271	293
Umangite ()*	None	Cu₃Se₂	191	179	1	47267	71
Uraninite ()*	Fluorite	UO₂	237	170	4	47260,47266,47267,47268	2718
Uranocircite-II ()*	None	Ba(UO₂)₂(PO₄)₂·10H₂O	191	179	1	47267	89
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	262	258	1	47274	890
Uranosphaerite ()*	None	Bi(UO₂)O₂(OH)	191	179	1	47267	18
Wollastonite ()*	Wollastonite	CaSiO₃			1	47259	1247
Zinkenite ()*	Zinkenite	Pb₉Sb₂₂S₄₂			1	47251	228
Zircon ()*	Zircon	Zr(SiO₄)			1	47244	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000829	The Zadní Chodov uranium deposit was mined from 1952 to 1992 and was ranked among medium-size uranium deposits in the Bohemian Massif. The totalmine production of low-grade uranium ore (0.195 wt.% U) was 4151 t U. The deposit, which is located in the northern tectonic block of the Bor pluton, was investigated by mine workings down to levels of 1250m in a length of over 2.5 km. The contact with the Moldanubian high-grade metasediments is tectonic, comprising several parallel shear structures to the Zadní Chodov fault,which forms the western boundary of the Bor pluton. Migmatised biotite paragneisses of the Moldanubian Varied Group predominate and they contain intercalations of quartzites, amphibolites, calc-silicate rocks and crystalline limestones. Dykes and bodies of amphibole-biotite tonalites and biotite granites cut the paragneisses. Aplite, pegmatite and lamprophyre dykes occur but are less frequent and are particularly developed above and below large shear zones. Uranium mineralisation is associated with the N-S trending zones of the Zadní Chodov fault in areas of their intersection with NW-SE trending fault structures, which form a NW continuation of the Central fault. The Zadní Chodov shear zone has been verified in an extent exceeding 20 km, its thickness in the middle part reaches 500m, and the dip is 50–75° to the east. This dislocation passes northwards into the Eastern shear zone of the Zadní Chodov deposit. The infill of the shear zones consists of intensely altered and crushed rocks with chlorite-rich and/or clay-mineral-rich assemblages. Uranium mineralisation was concentrated into three shear zones
Giersdorf_00000830	The Vítkov II uranium deposit was mined from 1961 to 1988 and was ranked among medium-size uranium deposits in the Bohemian Massif. The total mine production of low-grade uranium ore (0.124wt.% U)was 3973 t U. This uranium deposit occurs in the central tectonic block of the Bor pluton. The deposit is evolved between two shear NNE–SSW zones. The shear zone 0–30 in the east is up to 5–7 m in thickness. Its infill consists of highly crushed altered rocks (albitised biotite granites and lamprophyres), quartz and carbonates. Rich accumulations of U-minerals often occur in its vicinity. The Vítkov shear zone (southern part of the Eastern shear zone evolved in area of the Zadní Chodov deposit) forms the western boundary of the deposit. It is very conspicuous and its thickness reaches several tens of meters. It is infilled by crushed and altered country rocks. The pennate NW–SE dislocations situated between the two shear zones are infilled by dyke biotite and two-mica granites and relatively rarely aplites. The occurrence of uranium mineralisation is controlled by NW-SE and NNW-SSE trending faults,which forma dense network of fractures and joints. The surrounding biotite granites are usually intensely altered. The ore bodies comprise U-minerals (coffinite, uraninite, brannerite) finely disseminated in the surrounding altered granitoids.
Giersdorf_00000831	The small uranium deposit Lhota is situated in the central block of the Bor pluton. The deposit has been verified between 1953 and 1967 and 1975–1989 by five exploration shafts down to a depth of 250 m, and by numerous boreholes down to levels of 300 to 600m.During these two exploration stages low-grade uranium mineralisation (0.120 wt.% U) with the total amount of 158 t U was identified. The geology of the area surrounding this uranium deposit consists of mostly coarse-grained biotite granites together with smaller bodies of amphibole-biotite granodiorites and tonalites overlain by remnants of the Moldanubian country rocks. Patches of high-grade metamorphic rocks of the Moldanubian Varied group also form abundant xenoliths in the biotite granites. The rock complex is pierced by NW-SE, partly also N-S trending aplite dykes. The two ore bearing shear structures (Os-2, Os-17) strike NW-SE and dip steeply NE. The thickness of these mineralised shear zones is 5–18 m. The mineralised shear zones comprise coffinite, uraninite and brannerite.

5 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	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_00000831	161	155	158±3	U-Pb	Age of uraninite II from post-ore quartz stage	uraninite	Uraninite	Uraninite	U	232034	Tachov District, Plzeň Region, Czech Republic	Lhota Uranium Deposit	René (2017)	10.1016/j.oregeorev.2016.09.033	OGR81_188	Age of uranium mineralization
Giersdorf_00000829	191	179	185±6	U-Pb	Mesozoic recrystallization of brannerite during the main ore stage.	brannerite	Brannerite	Brannerite, Coffinite, Uraninite	U	106091	Zadní Chodov (Hinterkotten), Planá U Mariánských Lázní, Tachov District, Plzeň Region, Czech Republic	Zadní Chodov Uranium Deposit	René (2017)	10.1016/j.oregeorev.2016.09.033	OGR81_188	Age of uranium mineralization
Ni-00001	216	170	193	U-Th-Pb					Ni	18389	Stříbro, Tachov District, Plzeň Region, Czech Republic	Stříbro-Harrachov	Bielicki and Tischendorf (1991)	10.1007/BF00321987	CMP106_440
Ni-00002	237	211	224	U-Pb					Ni	18389	Stříbro, Tachov District, Plzeň Region, Czech Republic	Stříbro-Harrachov	Bielicki and Tischendorf (1991)	10.1007/BF00321987	CMP106_440
Giersdorf_00000830	262	258	260±2	U-Pb	Age of uranium mineralization during the main ore stage of the Variscan event	uraninite	Uraninite	Brannerite, Coffinite, Uraninite	U	188816	Vítkov II, Tachov District, Plzeň Region, Czech Republic	Vítkov II Uranium Deposit	René (2017)	10.1016/j.oregeorev.2016.09.033	OGR81_188	Age of uranium mineralization

Sample	Source Locality	Reference URL
FKM-219	Svatá Anna, Planá U Mariánských Lázní, Tachov District, Plzeň Region, Czech Republic	https://www.rockptx.com/fkm-201-to-fkm-225/#FKM-219

All locality data graciously provided by mindat.org

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