Palynostratigraphical and organic maturation study from the Lower Karoo in the ETA 15 and ETA 71 boreholes in the Moatize-Minjova Basin, Tete Province (Mozambique): Palinostratigrafia e maturação orgânica do Karoo Inferior nas sondagens ETA 15 e ETA 71 da Bacia Carbonífera de Moatize-Minjova, província de Tete (Moçambique)

Lígia Nunes de Sousa Pereira de Castro, M. Costa, P. Fernandes, Z. Fernandes

Research output: Contribution to conferencePaper

Abstract

The Karoo Supergroup (KSG) is a geological unit of great importance in Southern Africa, consisting of sedimentary and igneous rocks. The deposits of the Karoo, which are well represented in Tete Province (Central West of Mozambique), have been studied mainly to due its coal deposits. In this work 12 samples were studied from ETA 15 and ETA 71 boreholes (ca. 30 m depth), that crossed the Matinde Formation. The age and maturation of the sections in the two boreholes were determined by means of palynology and vitrinite reflectance (supported by the study of spore fluorescence and colour). Palynological results indicated a latest Permian age and the vitrinite reflectance values measured range from 1.39 to 1.5 %Rr corresponding to bituminous coals with low to medium volatiles in terms of coal rank. The results of this study are compared with existing palynological and maturation data obtained from others boreholes of the same basin.
Original languageEnglish
Pages65-68
Number of pages4
Publication statusPublished - 2015
EventV Congresso Jovens Investigadores em Geociências - Pólo de Estremoz da UÉvora, Estremoz, Portugal
Duration: 20 Nov 201524 Nov 2015
https://laboratoriodoensino.wordpress.com/2015/09/16/v-congresso-jovens-investigadores-em-geociencias/

Conference

ConferenceV Congresso Jovens Investigadores em Geociências
CountryPortugal
CityEstremoz
Period20/11/1524/11/15
Internet address

Keywords

  • Karoo
  • Palynology
  • vitrinite reflectance
  • Moatize-Minjova Basin

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