ORCID Profile
0000-0002-8689-5882
Current Organisation
University of Southampton
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Publisher: International Ocean Discovery Program
Date: 28-02-2019
Publisher: Springer Science and Business Media LLC
Date: 28-02-2019
DOI: 10.1038/S41598-019-40022-W
Abstract: Young rifts are shaped by combined tectonic and surface processes and climate, yet few records exist to evaluate the interplay of these processes over an extended period of early rift-basin development. Here, we present the longest and highest resolution record of sediment flux and paleoenvironmental changes when a young rift connects to the global oceans. New results from International Ocean Discovery Program (IODP) Expedition 381 in the Corinth Rift show 10s–100s of kyr cyclic variations in basin paleoenvironment as eustatic sea level fluctuated with respect to sills bounding this semi-isolated basin, and reveal substantial corresponding changes in the volume and character of sediment delivered into the rift. During interglacials, when the basin was marine, sedimentation rates were lower (excepting the Holocene), and bioturbation and organic carbon concentration higher. During glacials, the basin was isolated from the ocean, and sedimentation rates were higher (~2–7 times those in interglacials). We infer that reduced vegetation cover during glacials drove higher sediment flux from the rift flanks. These orbital-timescale changes in rate and type of basin infill will likely influence early rift sedimentary and faulting processes, potentially including syn-rift stratigraphy, sediment burial rates, and organic carbon flux and preservation on deep continental margins worldwide.
Publisher: International Ocean Discovery Program
Date: 28-02-2019
Publisher: Springer Science and Business Media LLC
Date: 19-04-2019
DOI: 10.1038/S41598-019-42749-Y
Abstract: A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
Publisher: Geological Society of America
Date: 08-12-2017
DOI: 10.1130/G39560.1
Publisher: International Ocean Discovery Program
Date: 28-02-2019
Publisher: Copernicus GmbH
Date: 22-10-2018
Abstract: Abstract. An International Ocean Discovery Program (IODP) workshop was held at Sydney University, Australia, from 13 to 16 June 2017 and was attended by 97 scientists from 12 countries. The aim of the workshop was to investigate future drilling opportunities in the eastern Indian Ocean, southwestern Pacific Ocean, and the Indian and Pacific sectors of the Southern Ocean. The overlying regional sedimentary strata are underexplored relative to their Northern Hemisphere counterparts, and thus the role of the Southern Hemisphere in past global environmental change is poorly constrained. A total of 23 proposal ideas were discussed, with ∼ 12 of these deemed mature enough for active proposal development or awaiting scheduled site survey cruises. Of the remaining 11 proposals, key regions were identified where fundamental hypotheses are testable by drilling, but either site surveys are required or hypotheses need further development. Refinements are anticipated based upon regional IODP drilling in 2017/2018, analysis of recently collected site survey data, and the development of site survey proposals. We hope and expect that this workshop will lead to a new phase of scientific ocean drilling in the Australasian region in the early 2020s.
Publisher: International Ocean Discovery Program
Date: 28-02-2019
Publisher: International Ocean Discovery Program
Date: 28-02-2019
Publisher: American Geophysical Union (AGU)
Date: 05-2016
DOI: 10.1002/2015TC004026
Publisher: International Ocean Discovery Program
Date: 28-02-2019
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Lisa McNeill.