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:
Bull's Run Estate, Umhlatuzi, Uthungulu District, KwaZulu-Natal, South Africa

Oldest recorded age at locality: 1175
Youngest recorded age at locality: 259

mindat Locality ID: 57405
mindat URL: http://www.mindat.org/loc-57405.html

Tectonic Settings:

Total number of sublocalities beneath "Bull's Run Estate, Umhlatuzi, Uthungulu District, KwaZulu-Natal, South Africa": 0
Total number of bottom-level sublocalities: 0

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: O Si Zr 

Elements from minerals reported directly at this locality: O Si Zr 

Structural Groups for minerals in this locality: 
NoneZircon

1 IMA Minerals at location:
Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Zircon  (*)ZirconZr(SiO4)1175110505251



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000802The Eshowe Formation is part of the sediments of the KwaZulu-Natal area of South Africa
Jen_0000998MAGMATIC STYLE: Carbonate-rich gneiss bands, up to 200x20 m, are considered to be tectonically deformed carbonatites. ASSOCIATED SILICATE ROCKS: Syenitic gneiss, nepheline syenite gneiss and gneissose peralkaline microsyenite dykes.
Jen_0000999MAGMATIC STYLE: Carbonate-rich gneiss bands, up to 200x20 m, are considered to be tectonically deformed carbonatites. ASSOCIATED SILICATE ROCKS: Syenitic gneiss, nepheline syenite gneiss and gneissose peralkaline microsyenite dykes.
Jen_0001000MAGMATIC STYLE: Carbonate-rich gneiss bands, up to 200x20 m, are considered to be tectonically deformed carbonatites. ASSOCIATED SILICATE ROCKS: Syenitic gneiss, nepheline syenite gneiss and gneissose peralkaline microsyenite dykes.


4 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
Giersdorf_00000802261259260±1 Age given in support of earlier works by Gentle el al. (1978) due to its consistency in its findings   Yes  57245Eshowe, Uthungulu District, KwaZulu-Natal, South AfricaEshoweBordy et al. (2005)10.2113/108.3.454SAJG107_397Age of the clays of the Eshowe group
Jen_0000998900900900        57405Bull's Run Estate, Umhlatuzi, Uthungulu District, KwaZulu-Natal, South AfricaBull's RunWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0000999117511051140±35U-Th-Pb zircon   Zircon  57405Bull's Run Estate, Umhlatuzi, Uthungulu District, KwaZulu-Natal, South AfricaBull's RunWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0001000114010601100±40K-Ar biotite     57405Bull's Run Estate, Umhlatuzi, Uthungulu District, KwaZulu-Natal, South AfricaBull's RunWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...