| | Journal (article/letter/editorial) | Printed in The Netherlands 19 [41 PONTLYFNI: A DIFFERENTIATED METEORITE RELATED TO THE GROUP IAB IRONS ANDREW...abundances of 23 major and trace elements in the Pontlyfni meteorite have been measured by instrumental neutron...relationship between Pontlyfni and the group lAB irons. 1. Introduction The Pontlyfni meteorite fell on Coch-y-Bug...Coch-y-Bug Farm, Pontlyfni, Llanwnda, Caernarvonshire, Wales at 11 : 53; April 14, 1931 [1]. Most o f the...could only state that it was a meteorite o f an unusual type. The meteorite was acquired for the British | | | Journal (article/letter/editorial) | stone meteorites Winona, Mt. Morris (Wisconsin), Pontlyfni, Kakangari and Acapulco, plus a chondritic inclusion...carbon-containing species present. Winona, Mt. Morris (Wis), Pontlyfni and the chondritic inclusion from Cumberland Falls...indigenous carbon component in these specimens is graphite, with a Si3Cvalue of between -9.5 and -2.8460...8460,close to the range reported for graphite in both enstatite chondrites and IAB irons. Thus the links...“winonaites”, and there is no basis for including this meteorite in any group with IAB irons or enstatite chondrites | | | Journal (article/letter/editorial) | ' In spite of numerous historical records of meteorite falls, a century of scientific scepticism about...in meteorites. White inclusions of the Allende meteorite carry the melilite, spinel, diopside, and perovskite...with 27A1/24Mg in anorthite from the Allende meteorite (Lee et al., I977a , b); Hutcheon et al., I977;...carbonaceous chondrites; however, mixtures of several meteorite types are more plausible than just a single type...12; normalized to log H = 12; log atomic, b. CI meteorite; log atomic normalized to log Mg + log Si = 15 |
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