ESTUDO DE PALINOFÁCIES NA SUCESSÃO RICA EM MATÉRIA ORGÂNICA DA FORMAÇÃO TREMEMBÉ NO POÇO TMB-3-SP (OLIGOCENO DA BACIA DE TAUBATÉ)
In order to show how the upper part of the Tremembé Formation evolved in terms of organic matter and
paleoenvironment types, palynofacies of 20 samples from the TMB-3-SP well were analyzed and
sedimentological and geochemical data from the same samples were revisited. The association of the
palynofacies data with the total organic carbon, hydrogen index and sedimentological data made it
possible to group the studied samples in nine sets, named from 1 to 9, from the bottom to the top of the
Tremembé Formation. Sets 1, 3, 5, 7, and 9 represent low water depth phases in the lake, while sets 2, 4,
6, and 8 represent high water depth phases in the lake, with Set 6 witnessing the period with thickest and
most expanding water depth of the lake. The phases of low water depth in the lake have lower
concentrations of fluorescent amorphous organic matter and predominance of Pediastrum algae over
Botryococcus algae. In contrast to the phases of high water depth in the lake, with higher concentrations
of fluorescent amorphous organic matter and predominance of Botryococcus algae over Pediastrum algae.
Parallel to the knowledge of the stratigraphic distribution of the microscopic characteristics of organic
matter along the upper part of the Tremembé Formation in the central region of the Taubaté Basin, the
new data constitute important paleoenvironmental indicators.
The copyright to this article is transferred to Sociedade Brasileira de Geoquímica effective if and when the article is accepted for publication. The author(s) warrant(s) that his/her/their contribution is original and that he/she/they has/have full power to make this grant. The author(s) sign(s) for and accept(s) responsibility for releasing this material The copyright transfer covers the exclusive right and license to reproduce, publish, distribute and archive the article in all forms and media of expression now known or developed in the future, including reprints, translations, photographic reproductions, electronic form (offline, online) or any other reproductions of similar nature.
Author(s) may self-archive an author-created version of his/her/their article on his/her/their own website and or in his/her/their institutional repository. He/she/they may also deposit this version on his/her/their funder’s or funder’s designated repository at the funder’s request or as a result of a legal obligation, provided it is not made publicly available until 12 months after official publication. Author(s) may not use the publisher’s PDF version, which is posted on www.geobrasiliensis.com.br, in repositories. Furthermore, the author(s) may only post his/her/their version provided acknowledgement is given to the original source of publication, assigning the link where it can be found. This link must be accompanied by the following text: “The final publication is available at www.geobrasiliensis.com.br”.
The author(s) retain(s) the right to use his/her/their article for his/her/their further scientific career by including the final article published by Geochimica Brasiliensis in other publications such as dissertations, theses and postdoctoral qualifications provided acknowledgement is given to the original source of publication.
After submission of the agreement signed by the corresponding author(s), changes of authorship or in the order of the authors listed will not be accepted by Sociedade Brasileira de Geoquímica.
Title of article:
Place and Date: