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Expedition 353 summary

“…One hole was logged. This is substantially less than the initially planned campaign targeting 6256 m of section, including downhole logging at three sites (Clemens et al, 2014 difference amounts to approximately 15 days of lost operational time. Weather accounted for 1.6 days of lost operations.…”

Site U1446

“…Alternatively, iron oxides could be reduced in situ in these deeper sediments, but detailed rock magnetic measurements are needed to test these hypotheses. We also note that this depth could correspond to the boundary toward a more transparent horizon in the seismic profiles (Clemens et al, 2014), although the lithology does not appear to change (see Lithostratigraphy). Figure F19.…”

“…Map was generated using GeoMapApp (http://www.geomapapp.org). Clemens, S.C., Kuhnt, W., LeVay, L.J., and regional bottom-simulating reflector ( Figure F3) (Clemens et al, 2014;Collett et al, 2008). The objective at Site U1446 is to recover Pleistocene to Holocene sediments from three or more holes in order to construct a composite section and splice from which to make continuous timeseries reconstructions of changing monsoon precipitation and runoff at suborbital to orbital timescales.…”

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“…One hole was logged. This is substantially less than the initially planned campaign targeting 6256 m of section, including downhole logging at three sites (Clemens et al, 2014). This difference amounts to approximately 15 days of lost operational time.…”

“…One hole was logged. As initially planned, the expedition targeted 6256 m of recovery and three logged holes (Clemens et al, 2014). The lost logging holes and nearly 2000 m of unrecovered sediment section are accounted for by close to 15 days of lost operational time.…”