Vf. Belyi et al., THE LATE-STAGE OF EVOLUTION OF THE NORTHERN PART OF THE OKHOTSK-CHUKCHI VOLCANOGENIC BELT, Stratigraphy and geological correlation, 5(5), 1997, pp. 490-500
As a result of field studies conducted in the Enmyvaam River basin in
1991 and 1993, it has been found chat stratigraphic units of volcanic
rocks of the late stage of the Okhotsk-Chukchi volcanogenic belt (OCVB
) evolution make up a succession (from the base upward) of the Ergyvaa
m, Emuneret, and Enmyvaam formations, The work also resulted in obtain
ing new palynologic and magnetostratigraphic data. Racks with reversed
magnetization (the middle part: of the Emuneret Formation) were revea
led and observed for the first time among volcanic complexes of the OC
VB, The rocks occur stratigraphically above layers with the Ust'-Emune
ret floral assemblage referred by palynological data to the late Turon
ian, The reversed polarity zone (R-zone) revealed correlates with the
Klyuev I;R-zone (the middle Coniacian) of the general paleomagnetic sc
ale for the Phanerozoic of continents, The lower pari: of the Enmyvaam
Formation comprises the late Turonian-early Senonian palynological as
semblage. Taking into account the stratigraphic position of the Enmyva
am Formation and the normal magnetization of its rocks, the formation
is dated back to the Santonian. This was the first attempt to apply th
e combined paleophytological, palynological, and magnetostratigraphic
data for correlation the Cretaceous volcanogenic deposits in northeast
ern Russia.