Contents

Stratigraphy and Geological Correlation

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Vol. 29, No. 2, 2021

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Sr and C Isotope Chemostratigraphy of the Paleoproterozoic Metacarbonate Rocks of the Sortavala Group: Fennoscandian Shield, Northern Ladoga Area

I. M. Gorokhov, A. B. Kuznetsov, P. Ya. Azimov, E. O. Dubinina, I. M. Vasilieva and N. G. Rizvanova p. 121  abstract

Formation of the Crystalline Rock Complexes of the Tatsaingol Block of the Late Neoproterozoic Southern Khangay Metamorphic Belt, Central Asian Foldbelt

I. K. Kozakov, M. O. Anosova, T. I. Kirnozova and Yu. V. Plotkina p. 140  abstract

The Assemblage of Late Devonian Primitive Parathuramminids (Foraminifera) from Carbonate Deposits of the Mendeleev Rise, Eastern Arctic

T. N. Isakova p. 153  abstract

Conodont Biostratigraphy of the Lower Carboniferous Deep-Water Facies in the Kokshaal and Djangdjir Ranges, South Tianshan, Kyrgyzstan

A. V. Neyevin and D. V. Alexeiev p. 169  abstract

Variations in Nitrogen Isotope Composition in Clay Deposits of the Permian–Triassic Boundary Beds in the Verkhoyansk Region (Northeast Asia) and Their Implication for Reconstruction of Marine Environments

Y. D. Zakharov, M. Horacek and A. S. Biakov p. 192  abstract

Palynostratigraphy of the Cretaceous and Paleogene Sediments of Chelyabinsk Oblast, South Transurals

O. B. Kuzmina, N. K. Lebedeva and N. E. Shchulkina p. 215  abstract

Burdigalian to Early Serravallian Diatom Biostratigraphy from Havelock Island, Northern Indian Ocean

S. Saxena, A. Chakraborty, A. K. Ghosh, R. Dey, L. Roy and J. P. Keshri p. 241  abstract

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