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Hamada lava flow, Hamada City, Shimane Prefecture, Japani
Regional Level Types
Hamada lava flowLava Flow
Hamada CityCity
Shimane PrefecturePrefecture
JapanCountry

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Latitude & Longitude (WGS84):
34° 50' North , 132° 0' East
Latitude & Longitude (decimal):
34.83333,132.00000
GeoHash:
G#: wyjy5tpqy
GRN:
N24E77
Type:
Lava Flow
Age:
6.10 ± 0.19 to 5.75 ± 0.20 Ma
Geologic Time:
Miocene
Dating method:
K-Ar
Reference for age:
Uto, K. (1984). K-Ar age of several alkaline rocks from western San-in. Bulletin of the Volcanological Society of Japan, 29, 328-329.
Köppen climate type:
Cfa : Humid subtropical climate
Mindat Locality ID:
339447
Long-form identifier:
mindat:1:2:339447:5
GUID (UUID V4):
0


A nephelinite lava flow with a volume of c. 0.05 km³ extends over c. 2km².

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


4 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:

ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Calcite
Formula: CaCO3
ⓘ 'Clinopyroxene Subgroup'
ⓘ 'Fayalite-Forsterite Series'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
ⓘ 'Melilite Group'
Formula: Ca2M(XSiO7)
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ 'Zeolite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘ'Zeolite Group'9.G0.
Unclassified
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Melilite Group'-Ca2M(XSiO7)

List of minerals for each chemical element

HHydrogen
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ CalciteCaCO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ Fayalite-Forsterite Series
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Melilite GroupCa2M(XSiO7)
FFluorine
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ NephelineNa3K(Al4Si4O16)
MgMagnesium
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ NephelineNa3K(Al4Si4O16)
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ Fayalite-Forsterite Series
Siⓘ Melilite GroupCa2M(XSiO7)
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ CalciteCaCO3
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Caⓘ Melilite GroupCa2M(XSiO7)
TiTitanium
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
FeIron
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feⓘ Fayalite-Forsterite Series

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
Eurasian Plate
Japan

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

HARUMoto, A. (1952). Melilite-nepheline basalt, its olivine-nodules, and other inclusions from Nagahama, Japan. Mem. College of Sci., Univ. of Kyoto, Ser. B, 20, 69-88.
Tatsumi, Y., Arai, R., & Ishizaka, K. (1999). The petrology of a melilite–olivine nephelinite from Hamada, SW Japan. Journal of Petrology, 40(4), 497-509.
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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