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:
Mêdog Co. (Motuo Co.), Nyingtri Prefecture (Linzhi Prefecture), Tibet, China

Oldest recorded age at locality: 5.5
Youngest recorded age at locality: 3.5

mindat Locality ID: 235213
mindat URL: http://www.mindat.org/loc-235213.html

Tectonic Settings:

Total number of sublocalities beneath "Mêdog Co. (Motuo Co.), Nyingtri Prefecture (Linzhi Prefecture), Tibet, China": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Mount Namjagbarwa (Mount Nanjiabawa)

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

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

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 C Ca F Fe H K Mg Na O Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleAstrophylliteCalciteClayCorundumGarnetMicaNoneSpinel

8 IMA Minerals at location:
Almandine  (*)Astrophyllite  (*)Calcite  (*)Dolomite  (*)Geikielite  (*)
Pargasite  (*)Phlogopite  (*)Spinel  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)35.53.51438882353
Astrophyllite  (*)AstrophylliteK2NaFe2+7Ti2(Si4O12)2O2(OH)4F5.53.5143888161
Calcite  (*)CalciteCa(CO3)5.53.514388827770
Dolomite  (*)NoneCaMg(CO3)25.53.51438889895
Geikielite  (*)CorundumMgTiO35.53.514388870
Pargasite  (*)AmphiboleNaCa2(Mg4Al)(Si6Al2)O22(OH)25.53.5143888313
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)25.53.51438882273
Spinel  (*)SpinelMgAl2O45.53.51438881934



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Jen_0000583MAGMATIC STYLE: Two veins (A and B) each 30 cm wide and more than 1 km long.
Jen_0000584MAGMATIC STYLE: Two veins (A and B) each 30 cm wide and more than 1 km long.
Jen_0000585MAGMATIC STYLE: Two veins (A and B) each 30 cm wide and more than 1 km long.


3 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Jen_00005834.54.54.5        235214Mount Namjagbarwa (Mount Nanjiabawa), Mêdog Co. (Motuo Co.), Nyingtri Prefecture (Linzhi Prefecture), Tibet, ChinaNamjagbarwaWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_00005845.55.55.5K-Ar phlogopite   Phlogopite  235214Mount Namjagbarwa (Mount Nanjiabawa), Mêdog Co. (Motuo Co.), Nyingtri Prefecture (Linzhi Prefecture), Tibet, ChinaNamjagbarwaYang and Woolley(2006) JAES27_559 
Jen_00005853.53.53.5K-Ar phlogopite   Phlogopite  235214Mount Namjagbarwa (Mount Nanjiabawa), Mêdog Co. (Motuo Co.), Nyingtri Prefecture (Linzhi Prefecture), Tibet, ChinaNamjagbarwaYang and Woolley(2006) JAES27_559 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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