A Spatiotemporal Analysis of Paleobiogeographic Data to Constrain the Timing of Oceanic Connections between the Atlantic, Tethyan, and Pacific domains (part of the PAGEO research program)

This project is based on a large-scale collection of previously generated Jurassic and Early Cretaceous nannofossil biostratigraphic data and aims to apply both traditional micropaleontological methods and modern data science methodologies to the in-depth analysis of that large dataset.

The project objective is to determine the paleobiogeographical and chronostratigraphical detail of original and progressive water mixing between the Atlantic, the Tethyan and the Pacific geographic domains, in order to better circumscribe the conditions that presided during Nova Scotia basin formation.


A web interface for inserting new data and requesting statistical analysis through the data model developed during the project (i.e., an SQL database and website to access it).

A detailed, illustrated report presenting the results from Stratabugs, well data and paleobiogeography, ocean circulation and paleoclimatology analysis. In general, the report will contain:

  • Approach, Model and Data used.
  • Methods Employed – QC, DM, ML/AI, etc.
  • Description and interpretation of key wells, outputs of each parallel approach, assessment of each water mass node/interface, etc.
  • Key wells and interfaces interpreted.
  • Comparison with other East and West Atlantic margins.
  • Appendixes – all re-interpreted wells, maps, graphs.
  • Brief tutorials for web tool future use.
  • Raw data (collected in the context of the project) in table format and in electronic format (through the project cloud data service).
  • Revised stratigraphy of each well.
  • Correlation panels.

Principal Investigators: Sara Delgado, Gil Machado, Chronosurveys lda, Almada, Portugal; Maria de Lurdes Fonseca, Mario Cachao, University of Lisbon, Portugal

November 2020 – May 2022