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:
Dachang Au Ore Field, Qumarleb Co. (Qumalai Co.), Gyêgu Autonomous Prefecture (Yushu Autonomous Prefecture), Qinghai, China

mindat Locality ID: 254017
mindat URL: http://www.mindat.org/loc-254017.html

Tectonic Settings:

Total number of sublocalities beneath "Dachang Au Ore Field, Qumarleb Co. (Qumalai Co.), Gyêgu Autonomous Prefecture (Yushu Autonomous Prefecture), Qinghai, China": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Dachang Au Deposit
Jiageilongwa Au Deposit
Zhajiatongna Au Deposit
Zhalayi Au Deposit

Latitude: 35°17'19"N
Longitude: 96°16'20"E
Decimal Degree (lat, lon): 35.288611111111,96.272222222222

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	Calcite	Chalcopyrite	Clay	Copper	Corundum	Kaolinite	Malachite	Mica	Nickeline
None	Orpiment	Pyrite	Quartz	Rocksalt	Sphalerite	Stibnite

Arsenopyrite ()*	Calcite ()*	Chalcopyrite ()*	Dolomite ()*	Galena ()*
Gold ()*	Ilmenite ()*	Kaolinite ()*	Malachite ()*	Muscovite ()*
Orpiment ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Realgar ()*
Siderite ()*	Sphalerite ()*	Stibnite ()*

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 C Ca Cu Fe H K Mg O Pb S Sb Si Ti Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Arsenopyrite Calcite Chalcopyrite Clay Copper Corundum Kaolinite Malachite Mica Nickeline
None Orpiment Pyrite Quartz Rocksalt Sphalerite Stibnite

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	4	42267,42268,42269,42270	9052
Calcite ()*	Calcite	Ca(CO₃)	3	42267,42268,42269	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	42267,42268	27198
Dolomite ()*	None	CaMg(CO₃)₂	1	42267	9895
Galena ()*	Rocksalt	PbS	1	42267	24243
Gold ()*	Copper	Au	4	42267,42268,42269,42270	30554
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	42268	5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2	42267,42268	5591
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	2	42267,42268	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	4	42267,42268,42269,42270	17380
Orpiment ()*	Orpiment	As₂S₃	2	42267,42268	511
Pyrite ()*	Pyrite	FeS₂	4	42267,42268,42269,42270	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	42267	9056
Quartz ()*	Quartz	SiO₂	4	42267,42268,42269,42270	61156
Realgar ()*	None	AsS	2	42267,42268	712
Siderite ()*	Calcite	Fe(CO₃)	1	42267	6417
Sphalerite ()*	Sphalerite	ZnS	1	42267	21482
Stibnite ()*	Stibnite	Sb₂S₃	4	42267,42268,42269,42270	3418

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...