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:
Chlum Hill, Sepekov, Tábor District, South Bohemian Region, Czech Republic

Oldest recorded age at locality: 337.6
Youngest recorded age at locality: 332

mindat Locality ID: 73027
mindat URL: http://www.mindat.org/loc-73027.html

Tectonic Settings:

Total number of sublocalities beneath "Chlum Hill, Sepekov, Tábor District, South Bohemian Region, Czech Republic": 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: Al Fe H K Mg O Si Ti 

Elements from minerals reported directly at this locality: Al Fe H K Mg O Si Ti 

Structural Groups for minerals in this locality: 
BerylClayCorundumMicaNoneNot in a structural groupQuartzSpinel

8 IMA Minerals at location:
Cordierite  (*)Corundum  (*)Hercynite  (*)Ilmenite  (*)Muscovite  (*)
Phlogopite  (*)Quartz  (*)Sillimanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Cordierite  (*)BerylMg2Al4Si5O18337.633201008
Corundum  (*)CorundumAl2O3337.633201797
Hercynite  (*)SpinelFe2+Al2O4337.63320407
Ilmenite  (*)CorundumFe2+Ti4+O3337.633205433
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2337.6332017380
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)2337.633202273
Quartz  (*)QuartzSiO2337.6332061156
Sillimanite  (*)Not in a structural groupAl2SiO5337.633201516



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
JCGS48_70_0001337.6335.6336.6±1.0concordia  Ta-10 Yes  257258Dražice, Tábor District, South Bohemian Region, Czech RepublicDraziceJanousek and Gerdes (2003) JCGS48_70concordia of 3 fractions (zircon ,zircon, rutile) from the Tabor intrusion
JCGS48_70_0002337.1335.5336.3±0.8Pb-Pb rutile  YesRutile  257258Dražice, Tábor District, South Bohemian Region, Czech RepublicDraziceJanousek and Gerdes (2003) JCGS48_70 
JCGS48_70_0003334332333±1U-Pblikely represents Pb losszircon  YesZircon  257258Dražice, Tábor District, South Bohemian Region, Czech RepublicDraziceJanousek and Gerdes (2003) JCGS48_70 


SampleSource LocalityReference URL


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