Silicoflagellates of the middle-early Late Eocene of the Kronotskii Bay (Eastern Kamchatka)

被引:4
|
作者
Tsoy, I. B. [1 ]
机构
[1] Russian Acad Sci, Far E Branch, VI Ilichev Pacific Oceanol Inst, Vladivostok 690022, Russia
关键词
Dictyochophyceae; silicoflagellates; diatoms; Middle Eocene; Late Eocene; Kronotskii Bay; Easterm Kamchatka; Northwest Pacific; PALEOGENE; OLIGOCENE; DEPOSITS; DIATOMS;
D O I
10.1134/S0869593811010059
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
The most complete characterization of Dictyochophyceae (silicoflagellate) assemblages from sediments of the Kronotskii Bay, Eastern Kamchatka, which are typical of the Corbisema hexacantha (Middle Eocene) and Naviculopsis foliacea (terminal middle-initial Late Eocene) zones in the tropical/subtropical zonation by Bukry (1981), is considered for the first time. In total, 43 silicoflagellate species of 8 genera are identified. The prevalence of species of the genera Corbisema and Dictyocha in the assemblages suggest warm, close to subtropical conditions in a sea basin that existed in the Eastern Kamchatka region during the Middle-Late Eocene.
引用
收藏
页码:87 / 101
页数:15
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