Journal
ISLAND ARC
Volume 28, Issue 4, Pages -Publisher
WILEY
DOI: 10.1111/iar.12302
Keywords
biostratigraphy; Neotethys; radiolaria; Tibet; Triassic; Yarlung-Tsangpo Suture Zone
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Funding
- Strategic Priority Research Program (B) of the Chinese Academy of Sciences [XDB03010102, XDB26000000]
- National Natural Science Foundation of China [41772020]
- Japan Society for the Promotion of Science KAKENHI [15K05329, 15H02142E]
- Grants-in-Aid for Scientific Research [15K05329] Funding Source: KAKEN
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Abundant Triassic radiolarian fossils were obtained from varicolored bedded cherts exposed in the Buruocang section near Jinlu village, Zedong, southern Tibet. The radiolarian-bearing rocks represent fragmented remnants of the Neotethys oceanic sediments belonging to the melange complex of the east part of the Yarlung-Tsangpo Suture Zone. Two new middle Late Anisian radiolarian assemblages recognized from this section named Oertlispongus inaequispinosus and Triassocampe deweveri, respectively, are compared with those known from Europe, Far East Russia, Japan, and Turkey. These Anisian radiolarian fossils are the first reported in southern Tibet and the oldest radiolarian record within the Yarlung-Tsangpo Suture Zone. They improve time constraints for the evolution of Neotethys in southern Tibet.
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