{{Short description|Type of volcanic rock}} {{Infobox rock |name=Ankaramite |type=Igneous |image= |caption= |composition=Mafic:pyroxene, olivine and plagioclase. }} thumb | right | Ankaramite lava flow '''Ankaramite''' is volcanic rock type of mafic composition. It is a dark porphyritic variety of basanite containing abundant pyroxene and olivine phenocrysts.<ref name=Ortiz>https://dialnet.unirioja.es/descarga/articulo/281059.pdf {{Webarchive|url=https://web.archive.org/web/20120227182337/http://rmcg.unam.mx/17-1/(3)Ortiz.pdf |date=2012-02-27 }} Luis Enrique Ortiz Hernández, ''An Arc Ankaramite Occurrence in Central Mexico,'' Revista Mexicana de Ciencias Geológicas, volumen 17, número 1 2000, p. 34-44</ref> It contains minor amounts of plagioclase and accessory biotite, apatite, and iron oxides.
Its type locality is Ankaramy in Madagascar. It was first described in 1916.<ref name=Ortiz/> It is also found in the Sierra de Guanajuato of Central Mexico,<ref name=Ortiz/> the South Pacific on islands such as Tahiti, Rarotonga, Samoa and in the Zealandia, Alexandra Volcanic Group.<ref name="Pittari2021">{{cite journal|first1=Adrian |last1=Pittari |first2=Marlena L. |last2=Prentice |first3= Oliver E. |last3=McLeod |first4= Elham Yousef|last4=Zadeh |first5= Peter J. J. |last5=Kamp |first6= Martin |last6=Danišík |first7=Kirsty A. |last7=Vincent |year=2021 |title= Inception of the modern North Island (New Zealand) volcanic setting: spatio-temporal patterns of volcanism between 3.0 and 0.9 Ma |journal= New Zealand Journal of Geology and Geophysics |volume=64 |issue=2–3 |pages= 250–272 | doi=10.1080/00288306.2021.1915343 |bibcode=2021NZJGG..64..250P |s2cid=235736318 |url=https://fl-nzgs-media.s3.amazonaws.com/uploads/2021/08/Ref.6C-c_North-Island-NZ-VolcanicSettingBetween3.00.9MaPittari-et-al.-2021_.pdf }}</ref>
==References== {{Reflist}}
Category:Porphyritic rocks Category:Mafic rocks Category:Volcanic rocks
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