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:
Changba Pb-Zn-(Ag) Deposit (Changba-Lijiagou Pb-Zn-(Ag) Deposit), Cheng Co., Longnan, Gansu, China

Oldest recorded age at locality: 393
Youngest recorded age at locality: 346

mindat Locality ID: 144740
mindat URL: http://www.mindat.org/loc-144740.html

Tectonic Settings:

Total number of sublocalities beneath "Changba Pb-Zn-(Ag) Deposit (Changba-Lijiagou Pb-Zn-(Ag) Deposit), Cheng Co., Longnan, Gansu, China": 0
Total number of bottom-level sublocalities: 0

Latitude: 34°0'0"N
Longitude: 105°30'0"E
Decimal Degree (lat, lon): 34,105.5

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	Amphibole	Aragonite	Arsenopyrite	Baryte	Bournonite	Calcite	Chalcopyrite	Clay	Clinozoisite
Epidote	Feldspar	Fluorite	Gypsum	Marcasite	Mica	Nickeline	None	Not in a structural group	Pyrite
Pyroxene	Quartz	Rocksalt	Sphalerite	Tetrahedrite

Actinolite ()*	Albite ()*	Anhydrite ()*	Arsenopyrite ()*	Baryte ()*
Boulangerite ()*	Bournonite ()*	Calcite ()*	Celestine ()*	Cerussite ()*
Chalcopyrite ()*	Diopside ()*	Dolomite ()*	Epidote ()*	Fluorite ()*
Galena ()*	Gypsum ()*	Hemimorphite ()*	Jarosite ()*	Marcasite ()*
Muscovite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Smithsonite ()*
Sphalerite ()*	Tennantite-(Fe) ()*	Tremolite ()*

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 Ba C Ca Cu F Fe H K Mg Na O Pb S Sb Si Sr Zn

Elements from minerals reported directly at this locality: Al As Ba C Ca Cu F Fe H K Mg Na O Pb S Sb Si Sr Zn

Structural Groups for minerals in this locality:
Alunite Amphibole Aragonite Arsenopyrite Baryte Bournonite Calcite Chalcopyrite Clay Clinozoisite
Epidote Feldspar Fluorite Gypsum Marcasite Mica Nickeline None Not in a structural group Pyrite
Pyroxene Quartz Rocksalt Sphalerite Tetrahedrite

28 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	393	346	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	393	346	8803
Anhydrite ()*	Not in a structural group	Ca(SO₄)	393	346	1588
Arsenopyrite ()*	Arsenopyrite	FeAsS	393	346	9052
Baryte ()*	Baryte	Ba(SO₄)	393	346	11547
Boulangerite ()*	None	Pb₅Sb₄S₁₁	393	346	843
Bournonite ()*	Bournonite	CuPbSbS₃	393	346	1089
Calcite ()*	Calcite	Ca(CO₃)	393	346	27770
Celestine ()*	Baryte	Sr(SO₄)	393	346	1252
Cerussite ()*	Aragonite	Pb(CO₃)	393	346	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	393	346	27198
Diopside ()*	Pyroxene	CaMgSi₂O₆	393	346	4135
Dolomite ()*	None	CaMg(CO₃)₂	393	346	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	393	346	8173
Fluorite ()*	Fluorite	CaF₂	393	346	9617
Galena ()*	Rocksalt	PbS	393	346	24243
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	393	346	6890
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	393	346	1689
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	393	346	2228
Marcasite ()*	Marcasite	FeS₂	393	346	5674
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	393	346	17380
Pyrite ()*	Pyrite	FeS₂	393	346	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	393	346	9056
Quartz ()*	Quartz	SiO₂	393	346	61156
Smithsonite ()*	Calcite	Zn(CO₃)	393	346	2473
Sphalerite ()*	Sphalerite	ZnS	393	346	21482
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	393	346	1803
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	393	346	2562

2 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-00089	393	383	Middle Devonian		host rock age									144740	Changba Pb-Zn-(Ag) Deposit (Changba-Lijiagou Pb-Zn-(Ag) Deposit), Cheng Co., Longnan, Gansu, China	Changba-Lijiagou	Taylor et al. (2009)		USGSOFR2009_1297
	sedznpb-00151	389	346	346–389											144740	Changba Pb-Zn-(Ag) Deposit (Changba-Lijiagou Pb-Zn-(Ag) Deposit), Cheng Co., Longnan, Gansu, China	Changba/Lijiagou	Singer et al. (2009)		USGSOFR2009-1252

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...