Nonglacial origin for low-δ18O Neoproterozoic magmas in the South China Block: Evidence from new in-situ oxygen isotope analyses using SIMS
Low-δ18O signatures in supracrustal rocks have been used as geochemical proxies for cold paleoclimates, e.g., glaciations. Unusual low-δ18O values found in Neoproterozoic igneous rocks in parts of the South China Block have thus been genetically linked to Neoproterozoic glaciation events. However, w...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Geological Society of America Inc
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/46319 |