Site U1458

Abstract

Background and objectives 1 Operations 2 Lithostratigraphy 4 Biostratigraphy and micropaleontology 5 Geochemistry 5 Paleomagnetism 5 Physical properties 7 Downhole measurements 7 Stratigraphic correlation 7 References

Expedition 356 summary

“…However, this operations plan was not followed in some cases (see Operations in each site chapter for details) because the nature of the seafloor and the upper sediments precluded piston coring. This was particularly true for the southern sites (U1458 and U1459), where hard layers necessitated the use of the XCB system at the seafloor (see Operations in the Site U1458 chapter and Operations in the Site U1459 chapter [Gallagher et al, 2017b[Gallagher et al, , 2017c). Despite the challenges encountered during operations, excellent material was recovered to address the scientific objectives.…”

“…It was originally intended as an alternate to Site U1458. The ship moved to Site U1459 after having difficulty coring the uppermost sediments at Site U1458 (see Operations in the Site U1458 chapter [Gallagher et al, 2017b] Ocean. Sites U1458 and U1459 comprise the southernmost sites of our latitudinal transect.…”