Article ID Journal Published Year Pages File Type
4731993 Journal of Asian Earth Sciences 2010 10 Pages PDF
Abstract

Calcareous nannofossils occur in Upper Carnian to Middle Norian siliceous micrites of the Sambosan accretionary complex, the origin of which is the Panthalassan Ocean. The siliceous micrite consists of presumably calcareous nannofossil derived lime–mud and locally yields abundant radiolarians and filaments (thin-shelled bivalves). This type of accumulation of siliceous micrite represents a significant change in oceanic sedimentation since Late Triassic times, which appears as a depositional response to the simultaneous Late Triassic rise of calcareous nannoplankton in the world-ocean.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Geology
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