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Hawaiite

A rock classification type
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Name:
for the Isles of Hawaii, USA.
A term originally defined as a variety of olivine-bearing basalt in which the normative plagioclase is oligoclase or andesine.
A sodium-rich trachybasalt where (Na2O-2)>K2O.

They are dark coloured volcanic rocks usually described as basalt without chemical analysis.




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Unique IdentifiersHide

Mindat ID:
5963
Long-form identifier:
mindat:1:1:5963:9

Similar NamesHide

HaiweeiteA valid IMA mineral speciesCa(UO2)2[Si5O12(OH)2] · 6H2O
HawaiitA synonym of 'Olivine'
HowieiteA valid IMA mineral speciesNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10

Classification of HawaiiteHide

TAS_S1.png

Hawaiite is found in field S1 in the TAS diagram.

Sub-divisions of HawaiiteHide

Pronunciation of HawaiiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Age distributionHide

Recorded ages:
Phanerozoic : 191 Ma to 0 Ma - based on 11 recorded ages.
Sample ages:
Sample IDRecorded ageGeologic TimeDating method
1Up to 0.037 MaPleistoceneK-Ar
20.3 ± 0.1 MaPleistoceneK-Ar whole rock
30.55 ± 0.06 to 0.11 ± 0.07 MaPleistoceneK-Ar
41.0 to 0.5 MaPleistoceneK-Ar from upper slopes
51.0 ± 0.1 to 0.1 MaPleistoceneK-Ar from Mount Waesche
65.14 ± 0.40 to 4.6 MaPliocene
723 to 17 MaMioceneK-Ar
823.7 ± 0.7 to 23.2 ± 0.7 MaOligoceneK-Ar
927 MaOligoceneK-Ar
1070 MaLate/Upper Cretaceous
11191 to 120 ± 10 MaMesozoic
Sample references:
IDLocalityReferenceNotes
1Pico Volcano, Pico, Azores, Portugal
Feraud, G., Kaneoka, I., & Allègre, C. J. (1980). K/Ar ages and stress pattern in the Azores: geodynamic implications. Earth and planetary science letters, 46(2), 275-286. doi.org/10.1016/0012-821X(80)90013-8
2Paulet Island, West Antarctica, Antarctica
Baker, P. E., Buckley, F., & Rex, D. C. (1977). Cenozoic volcanism in the Antarctic. Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 279(963), 131-142.
3São Jorge, Azores, Portugal
Feraud, G., Kaneoka, I., & Allègre, C. J. (1980). K/Ar ages and stress pattern in the Azores: geodynamic implications. Earth and planetary science letters, 46(2), 275-286. doi.org/10.1016/0012-821X(80)90013-8
4Toney Mountain, Marie Byrd Land, West Antarctica, Antarctica
LeMasurier, W.E. (1990) B. Marie Byrd Land. In Volcanoes of the Antarctic Plate and Southern Oceans Vol. 48 - Antarctic Research Series. American Geophysical Union. p.146-255. doi:10.1029/AR048
5Mount Waesche and Chang Peak, Executive Committee Range, Marie Byrd Land, West Antarctica, Antarctica
LeMasurier, W. E., & Rex, D. C. (1989). Evolution of linear volcanic ranges in Marie Byrd Land, west Antarctica. Journal of Geophysical Research: Solid Earth, 94(B6), 7223-7236.
6Santa Maria, Azores, Portugal
Feraud, G., Kaneoka, I., & Allègre, C. J. (1980). K/Ar ages and stress pattern in the Azores: geodynamic implications. Earth and planetary science letters, 46(2), 275-286. doi.org/10.1016/0012-821X(80)90013-8
7Oku Massif, Northwest Region, Cameroon
Fitton, J. G., & Dunlop, H. M. (1985). The Cameroon line, West Africa, and its bearing on the origin of oceanic and continental alkali basalt. Earth and Planetary Science Letters, 72(1), 23-38. doi.org/10.1016/0012-821X(85)90114-1
8Bunya Mountains, Moreton Bay Region, Queensland, Australia
EWART, A. (1982) Petrogenesis of the Tertiary Anorogenic Volcanic Series of Southern Queensland, Australia, in the Light of Trace Element Geochemistry and O, Sr and Pb Isotopes. Journal of Petrology, 23 (3) 344-382 doi:10.1093/petrology/23.3.344
9Buckland Creek, Central Highlands Region, Queensland, Australia
Sutherland, F. L., Hollis, J. D., & Robertson, A. D. (1989). Buckland and Mitchell.
10Monto Outcrop, Monto, North Burnett Region, Queensland, Australia
Sutherland, F. L., Hollis, J. D., & Robertson, A. D. (1989). Monto.
for nepheline hawaiite plug
11Coleraine District, Southern Grampians Shire, Victoria, Australia
McDougall, I., & Wellman, P. (1976). Potassium?argon ages for some Australian Mesozoic igneous rocks. Journal of the Geological Society of Australia, 23(1), 1-9.

Internet Links for HawaiiteHide

References for HawaiiteHide

Reference List:
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