Journal article
The enigma of rare Quaternary oolites in the Indian and Pacific Oceans: A result of global oceanographic physicochemical conditions or a sampling bias?
SJ Gallagher, L Reuning, T Himmler, J Henderiks, D De Vleeschouwer, J Groeneveld, A Rastigar Lari, CS Fulthorpe, K Bogus, W Renema, HV McGregor, MA Kominz, G Auer, S Baranwal, S Castañeda, BA Christensen, DR Franco, M Gurnis, C Haller, Y He Show all
Quaternary Science Reviews | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2018
Abstract
Marine ooids are iconic indicators of shallow seawater carbonate saturation state, and their formation has traditionally been ascribed to physicochemical processes. The Indo-Pacific stands out as a region devoid of oolites, particularly during the Quaternary: the “ooid enigma”. Here we present results from recent coring by the International Ocean Discovery Program (IODP Expedition 356) off west Australia that shows that ooid horizons are common in Pleistocene strata up to 730,000 years old. Extensive “ooid factories” were created due to the presence of long-lived tidally influenced flat–topped tropical platforms suitable for intermittent ooid accretion over hundreds to thousands of years dur..
View full abstractGrants
Awarded by Deutsche Forschungsgemeinschaft
Funding Acknowledgements
This research used samples and data provided by the International Ocean Discovery Program. We thank the USIO staff and the SIEM Offshore crew for their invaluable assistance and skill during the Expedition. Funding was provided by the Australian IODP office to S.J.G., C.A.K., A.R. and H.V.M. Further funding was provided by ARC Basins Genesis Hub (IH130200012) to SJ.G., the German Science Foundation (DFG project number 320220579) to L.R. and the Swedish Research Council (VR 2016-04434) to J.H. This work is part of a DAAD project DANA between S.J.G., D.V. and J.G. The wireline log data for the Maitland North-1 well and Angel field were donated by Occam Technology (Mike Wiltshire). We thank the handling editor Ingrid Hendy and the two reviewers John Milliman and Sam Purkis whose comments greatly improved the manuscript.