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:
Jinchuan Co., Ngawa Autonomous Prefecture (Aba Autonomous Prefecture), Sichuan, China

Oldest recorded age at locality: 176
Youngest recorded age at locality: 152

mindat Locality ID: 228858
mindat URL: http://www.mindat.org/loc-228858.html

Tectonic Settings:

Total number of sublocalities beneath "Jinchuan Co., Ngawa Autonomous Prefecture (Aba Autonomous Prefecture), Sichuan, China": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Ke'eryin Pegmatite Field
Shaba Nb-Ta Occurrence

Latitude: 31°43'53"N
Longitude: 101°57'49"E
Decimal Degree (lat, lon): 31.731388888889,101.96361111111

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.

Clay	Feldspar	Mica	None	Pyroxene

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 H K Li Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Clay Feldspar Mica None Pyroxene

4 IMA Minerals at location:

Albite ()*	Microcline ()*	Muscovite ()*	Spodumene ()*

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
Albite ()*	Feldspar	Na(AlSi₃O₈)	176	152	2	43597,43598	8803
Microcline ()*	Feldspar	K(AlSi₃O₈)	176	152	1	43597	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	176	152	1	43597	17380
Spodumene ()*	Pyroxene	LiAlSi₂O₆	176	152	1	43597	688

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
	Alexandra-0134	176	152	176-152	Ar-Ar	Age of rock		muscovite				Muscovite			228859	Ke'eryin Pegmatite Field, Jinchuan Co., Ngawa Autonomous Prefecture (Aba Autonomous Prefecture), Sichuan, China	Ke'eryin deposit	Li et al. (2015)	10.1111/1755-6724.12453	AGS89_656

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...