palagoniticadj.
/pəˌlaɡəˈnɪtɪk/, U.S. /pəˌlæɡəˈnɪdɪk/ Mineralogy and Geology.
Containing, relating to, or of the nature of palagonite.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > trap > basalt > other basaltic
palagonitic1867
tachylitic1888
tephritic1889
nephelinitic1909
spilitic1911
tholeiitic1922
shoshonitic1937
ankaramitic1971
1867 E. Sauter tr. F. von Hochstetter New Zealand xviii. 433 In Iceland palagonite and palagonitic tuffs, with fifty percent of silica are considered as the material acted upon and lixiviated by the hot water.
1886 Encycl. Brit. XXI. 189/2 Lavas and scoriæ of anorthitic character, palagonitic tuffs, and basaltic ashes.
1913 J. Murray Ocean x. 232 Besides these there will be hundreds of other manganese nodules formed around palagonitic and other volcanic fragments.
1965 Amer. Jrnl. Sci. 263 23 The presence of phyllosilicates of the smectite family is shown by X-ray powder diffraction studies of this palagonitic matrix.
1993 Geochim. et Cosmochim. Acta 57 4599/2 Chemical fractionation is usually observed in palagonitic materials.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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adj.1867