Isotopic evidence for a link between the Lyra Basin and Ontong Java Plateau
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Published:May 01, 2015
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CiteCitation
Maria Luisa G. Tejada, Kenji Shimizu, Katsuhiko Suzuki, Takeshi Hanyu, Takashi Sano, Masao Nakanishi, Shun'ichi Nakai, Akira Ishikawa, Qing Chang, Takashi Miyazaki, Yuka Hirahara, Toshiro Takahashi, Ryoko Senda, 2015. "Isotopic evidence for a link between the Lyra Basin and Ontong Java Plateau", The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Clive R. Neal, William W. Sager, Takashi Sano, Elisabetta Erba
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The few geological and geophysical studies of the Lyra Basin at the western margin of the Ontong Java Plateau (OJP; Pacific Ocean) revealed that it is underlain by thicker than normal oceanic crust. The unusually thick oceanic crust is attributed to the emplacement of massive lava flows from the OJP. Dredging was conducted to sample the inferred OJP crust on the Lyra Basin but instead recovered younger extrusives that may have covered the older plateau lavas in the area. The Lyra Basin extrusives are alkalic basalts with (87Sr/86Sr)t = 0.704513–0.705105, (143Nd/144Nd)...
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The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces

GeoRef
- alkaline earth metals
- alnoite
- basalts
- crust
- East Pacific
- emplacement
- hafnium
- Hf-177/Hf-176
- hot spots
- igneous rocks
- isotope ratios
- isotopes
- lava flows
- lead
- lithosphere
- Malaita
- Manihiki Plateau
- Melanesia
- metals
- models
- Nd-144/Nd-143
- neodymium
- Oceania
- oceanic crust
- Ontong Java Plateau
- Pacific Ocean
- Pb-206/Pb-204
- Pb-207/Pb-204
- Pb-208/Pb-204
- plate tectonics
- plutonic rocks
- radioactive isotopes
- rare earths
- Solomon Islands
- South Pacific
- Southeast Pacific
- Sr-87/Sr-86
- stable isotopes
- strontium
- thickness
- volcanic rocks
- West Pacific
- Lyra Basin
- Hikurangi Plateau