Characteristic of petrology and distribution of larger benthic foraminifera of permian carbonate in the southern part of Block 106, Song Hong basin

  • Mai Hoang Dam
  • Vu Thi Tuyen
DOI: https://doi.org/10.25073/petrovietnam%20journal.v3i0.264
Keywords: Foraminifera fossils, carbonate basement, stratigraphy, packstone, wackestone, mudstone

Abstract

The paper presents a detailed stratigraphic study of some wells which drilled through carbonate basement formations by analising larger benthic foraminifera assemblages and lithological characteristics of carbonate rock. The results show that the limestone formations are mainly packstone, wackestone and mudstone which contain abundant fossilised coincidence characteristic for the Permian period (Wuchiapingian - Changhsingian). The petrographic composition of the rock has been less altered so most of the fossil traces are quite well preserved, in which the fossil frames were replaced by calcite and dolimite cement. The pores are formed mainly by the compression of the blocky carbonate basements and they are filled by calcite, dolomite and silicon due to the influence of magma and hydrothermal activities.

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Published
2020-03-31
How to Cite
Mai Hoang Dam, & Vu Thi Tuyen. (2020). Characteristic of petrology and distribution of larger benthic foraminifera of permian carbonate in the southern part of Block 106, Song Hong basin . Petrovietnam Journal, 3, 22 - 31. https://doi.org/10.25073/petrovietnam journal.v3i0.264
Issue
Vol 3 (2020)
Section
Articles

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