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Kyeongju Namsan, Gyeongju City, North Gyeongsang Province, South Koreai
Regional Level Types
Kyeongju NamsanIntrusion
Gyeongju CityCity
North Gyeongsang ProvinceProvince
South KoreaCountry

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Latitude & Longitude (WGS84):
35° 51' North , 129° 14' East
Latitude & Longitude (decimal):
35.85000,129.23333
GeoHash:
G#: wy7guy2c6
GRN:
N24E76
Type:
Intrusion
KΓΆppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Gyeongju155,237 (2017)2.1km
Yeonil40,852 (2016)19.3km
Pohang500,000 (2017)23.2km
Eisen56,006 (2012)30.2km
Heunghae36,080 (2016)30.5km
Mindat Locality ID:
340186
Long-form identifier:
mindat:1:2:340186:9
GUID (UUID V4):
2b04ae97-4f18-4ce4-9c06-c225d4a5acb2
Other/historical names associated with this locality:
Gyeongju Namsan


Peralkaline granite intrusion located immediately south of town Kyeongju (Gyeongju). It extends over c. 10 x 20 km and to the south intrudes hornblende-biotite granodiorite, although elsewhere it is circumscribed by alluvial deposits.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ 'Alkali Feldspar'
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Fluorite
Formula: CaF2
β“˜ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Quartz
Formula: SiO2
β“˜ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
β“˜ Tetraferriannite
Formula: KFe2+3(Si3Fe3+)O10(OH)2
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Quartz4.DA.05SiO2
Group 9 - Silicates
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Arfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
β“˜Riebeckite9.DE.25β—»[Na2][Fe2+3Fe3+2]Si8O22(OH)2
β“˜Tetraferriannite9.EC.20KFe2+3(Si3Fe3+)O10(OH)2
Unclassified
β“˜'Alkali Feldspar'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Hornblende Root Name Group'-β—»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hβ“˜ TetraferrianniteKFe32+(Si3Fe3+)O10(OH)2
Hβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ QuartzSiO2
Oβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ TetraferrianniteKFe32+(Si3Fe3+)O10(OH)2
Oβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluoriteCaF2
Fβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ QuartzSiO2
Siβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ TetraferrianniteKFe32+(Si3Fe3+)O10(OH)2
Siβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ TetraferrianniteKFe32+(Si3Fe3+)O10(OH)2
CaCalcium
Caβ“˜ FluoriteCaF2
Caβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feβ“˜ TetraferrianniteKFe32+(Si3Fe3+)O10(OH)2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)

Geochronology

Mineralization age: Eocene : 48.2 Β± 0.7 Ma to 46.5 Β± 0.9 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Paleogene
   Eocene
β“˜ Biotite (youngest age)46.5 Β± 0.9 Ma
β“˜ Biotite (oldest age)48.2 Β± 0.7 Ma

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
Korean PeninsulaPeninsula

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Lee, M. J., Lee, J. I., & Lee, M. S. (1995). Mineralogy and major element geochemistry of A-type alkali granite in the Kyeongju area, Korea. μ§€μ§ˆν•™νšŒμ§€, 31(6), 583-607.
Woolley, Alan R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe (excluding the former USSR), Australasia and Oceanic Islands. The Geological Society of London. doi:10.1144/mpar4
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