IRELAND

has been used to ‘look inside the cores’ and tests have also been run to
measure their ‘magnetic susceptibility’, a valuable way ‘to identify ice rafted
debris layers or Heinrich Events in marine sediments’. All 12 cores, as it
turned out, revealed evidence of ‘increased magnetic susceptibilities’, while
radio carbon dating will help to identify the Heinrich events.
What is striking about all this is the way that technology is being used to
yield new information and insights. As Renken remarks: ‘What we hope
to see is how the former British-Irish Ice Sheet has impacted on the sea
climate of the region and what this will do is give a greater sense of the
pace at which change takes place.’
‘What we hope to see is how the former
British-Irish Ice Sheet has impacted on the
sea climate of the region and what this will
do is give a greater sense of the pace at
which change takes place’
discovery Ireland 58,59
The reference here to ‘hope’ not only underlines the uncertainty that
accompanies all such Discovery Research; it also illustrates how
improvements in technology and scientific equipment, while making the
processes of research and analysis more efficient, are no guarantors of
successful outcomes. Not that any of this fazes or unsettles Renken. Her
interest in the exploratory nature of research is undiminished and already
she has plans to return to the Porcupine Bank. Indeed, as the official report
on the March 2014 West of Ireland Coring Program Survey made clear, this
is not only desirable, but crucial to the prospect of any future revelation or
insight. Above all else, that report emphasized the importance of practical,
on-location, deep ocean research: ‘it is only through palaeoglaciology that
insight on ice sheet dynamism, timing and environmental interactions, from
advance to collapse, can be revealed. Therefore offshore palaeoglaciological
research must continue to be a priority.’