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Sr-Nd isotopic composition of Miocene felsic volcanic rocks <br />in the Kamo area, Niigata Prefecture

Miocene felsic volcanic rocks in the Kamo area, Niigata Prefecture, can be divided into two groups, E-group (17-14Ma) and D-group (11-8Ma), based on the age and the geochemical features. Sr-Nd isotopic compositions of the E-group rhyolite indicate that it may have been formed by partial melting of lower crust. On the other hand, the geochemical features of D-group rhyolite suggest that they were formed by differentiation from mafic magma and assimilation of crustal materials.<br><br><div class="is-print-hide" style="height:0; overflow:hidden; max-width:100%; padding-bottom:84%; position:relative;"><iframe allow="fullscreen" allowfullscreen="true" frameborder="0" src="https://confit2.atlas.jp/articles/event/jams2022/slide/R6P-07", style="height:100%; left:0; position:absolute; top:0; width:100%;"></iframe></div>

Onsite Poster Core time<br />12:15 - 14:15

2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

Presentation Information

[R6P-07]Sr-Nd isotopic composition of Miocene felsic volcanic rocks
in the Kamo area, Niigata Prefecture

Keywords:

Presentation Information

[R6P-07]Sr-Nd isotopic composition of Miocene felsic volcanic rocks in the Kamo area, Niigata Prefecture

Keywords:

[R6P-07]Sr-Nd isotopic composition of Miocene felsic volcanic rocks
in the Kamo area, Niigata Prefecture