Scientific article

Scientific drilling projects in ancient lakes: Integrating geological and biological histories

Published inGlobal and planetary change, vol. 143, p. 118-151
Publication date2016

Sedimentary sequences in ancient or long-lived lakes can reach several thousands of meters in thickness and often provide an unrivalled perspective of the lake's regional climatic, environmental, and biological history. Over the last few years, deep-drilling projects in ancient lakes became increasingly multi- and interdisciplinary, as, among others, seismological, sedimentological, biogeochemical, climatic, environmental, paleontological, and evolutionary information can be obtained from sediment cores. However, these multi- and interdisciplinary projects pose several challenges. The scientists involved typically approach problems from different scientific perspectives and backgrounds, and setting up the program requires clear communication and the alignment of interests. One of the most challenging tasks, besides the actual drilling operation, is to link diverse datasets with varying resolution, data quality, and age uncertainties to answer interdisciplinary questions synthetically and coherently. These problems are especially relevant when secondary data, i.e., datasets obtained independently of the drilling operation, are incorporated in analyses. Nonetheless, the inclusion of secondary information, such as isotopic data from fossils found in outcrops or genetic data from extant species, may help to achieve synthetic answers. Recent technological and methodological advances in paleolimnology are likely to increase the possibilities of integrating secondary information. Some of the new approaches have started to revolutionize scientific drilling in ancient lakes, but at the same time, they also add a new layer of complexity to the generation and analysis of sediment-core data. The enhanced opportunities presented by new scientific approaches to study the paleolimnological history of these lakes, therefore, come at the expense of higher logistic, communication, and analytical efforts. Here we review types of data that can be obtained in ancient lake drilling projects and the analytical approaches that can be applied to empirically and statistically link diverse datasets to create an integrative perspective on geological and biological data. In doing so, we highlight strengths and potential weaknesses of new methods and analyses, and provide recommendations for future interdisciplinary deep-drilling projects.

  • Ancient lake
  • Deep drilling
  • Evolutionary biology
  • Paleolimnology
Citation (ISO format)
WILKE, Thomas et al. Scientific drilling projects in ancient lakes: Integrating geological and biological histories. In: Global and planetary change, 2016, vol. 143, p. 118–151. doi: 10.1016/j.gloplacha.2016.05.005
Main files (1)
Article (Published version)
ISSN of the journal0921-8181

Technical informations

Creation06/21/2016 10:47:00 AM
First validation06/21/2016 10:47:00 AM
Update time03/15/2023 12:28:36 AM
Status update03/15/2023 12:28:35 AM
Last indexation08/30/2023 8:32:45 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack