Global Geology 2010, 13(1) 1- DOI:     ISSN: 1673-9736 CN: 22-1371/P

Current Issue | Archive | Search                                                            [Print]   [Close]
论文
Information and Service
This Article
Supporting info
PDF(2675KB)
[HTML]
Reference
Service and feedback
Email this article to a colleague
Add to Bookshelf
Add to Citation Manager
Cite This Article
Email Alert
Keywords
Jurassic /Cretaceous boundary
sedimentary basin
coastal-marine and non-marine deposit
biota
Far East Russia
Authors
PubMed

Sedimentological features and biostratigraphy of Jurassic/Cretaceous deposits in continental basins in Priamurie, Far East Russia

G. L. Kirillova1 , G. V. Roganov2 and V. V. Kiriyanova2

1. Institute of Tectonics and Geophysics, Far Eastern Branch, Russian Academy of Sciences, Khabarovsk 680000, Russia; 2. FGUGGP“Khabarovskgeologiya”, Khabarovsk 680000, Russia

Abstract

The paper describes the sedimentary features and biostratigraphy of the transitional Jurassic to Cretaceous deposits in the continental basins of Priamurie formed after the collision between the Siberian and North China blocks. In Upper Priamurie, the collision occurred in the late Early Jurassic as dated by the emplacement of the post-collisional granites (191Ma) . While in Lower Priamurie and West Priokhotie it could take place in the late Middle Jurassic on the basis of fossil evidence from an accretionary turbidite complex. This event reflected the environmental change from coastal-marine to alluvial plains, often boggy, where coals accumulated. The environmental change is in harmony with that of biota. Systematic study of floral and spores/pollen assemblages, particularly in the sections of interbedded marine and non-marine deposits, makes clear the chronostratigraphic succession of floral associations and shows the possibility of their application for subdivision and correlation of the continental deposits of Priamurie. The coastal-marine environment of the residual post-collisional sublatitudinal basins in the western part of Priamurie (Upper Amur and Dep basins) was replaced by the continental in the late Middle Jurassic and in the eastern part in the Berriasian-Valanginian ( Torom Basin) . Similar environmental change commenced in the submeridional rift basins: the Bureya Basin in the Callovian and the Partizansk Basin in the Hauterivian. Changes in ecosystems occurred frequently during theMiddle Jurassic-Neocomian, but the most substantial changes took place in the late Middle Jurassic and in the end of Late Jurassic.

Keywords Jurassic /Cretaceous boundary   sedimentary basin   coastal-marine and non-marine deposit   biota   Far East Russia  
Received  Revised  Online:  
DOI:
Fund:
Corresponding Authors:
Email:
About author:

References:
Similar articles
1.HUANG Yulong1 , WANG Pujun1 and CHEN Shuming2.Distribution and characteristics of volcanic reservoirs in China[J]. Global Geology, 2009,12(2): 64-79
2.SUN Haitao1 , ZHONG Dakang1 , ZHANG Simeng1 and WANG Xingming2.Formation and evolution of petroliferous basins in African continent and their hydrocarbon distribution[J]. Global Geology, 2010,13(1): 41-49

Copyright by Global Geology