Campanian-Maastrichtian deposits in the frontal part of the Olyutor zone (Southern Koryak upland)

被引:0
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作者
Soloviev, AV [1 ]
Palechek, TN [1 ]
Ledneva, GV [1 ]
机构
[1] Russian Acad Sci, Inst Lithosphere Marginal & Inland Seas, Moscow, Russia
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中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
New dating of volcanogenic siliceous oceanic (marginal-sea) deposits of the frontal Olyutor zone correlative with rocks of the Vatyna Group indicates that, in addition to Albian-Campanian, they include the younger Campanian-Maastrichtian horizons. The data allow us to contend that the oceanic and/or marginal-sea (Vatyna) and island-are (Achaivayam) deposits, also dating back to the Campanian-Maastrichtian, were in lateral connections at that time. On the other hand, the analysis of new and published data shows that the Campanian-Maastrichtian island-are deposits could probably overlap the pre-Campanian oceanic and/or marginal-sea sediments without any apparent disconformity.
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页码:187 / 194
页数:8
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