Interactive comment on “Late Pleistocene Glacial–Interglacial related shell size isotope variability in planktonic foraminifera as a function of local hydrology” by B. Metcalfe et al

Interactive comment on “Late Pleistocene Glacial–Interglacial related shell size isotope variability in planktonic foraminifera as a function of local hydrology” by B. Metcalfe et al

Referee 1 raises the issue of the effects/influences of the ‘carbonate ion effect, temperature and dissolution’ of foraminiferal d18O and d13C and asks (Page 148, line 25-26.) ‘..is a progressive enrichment in 13C for increasing size.’ Could this observation be due to changing sea water temperature of carbonate ion concentration during TIII? The authors response is very appropriate and I sugges...

Sensitivity of planktonic foraminifera to Mid-Pleistocene climate change in the SE Atlantic

In this paper we describe a record of planktonic foraminiferal relative abundance changes in Core T89-40 retrieved from the Walvis Ridge, SE Atlantic. The planktonic foraminiferal relative abundance changes reflect past (sub)surface water hydrography during the Mid-Pleistocene Transition. Statistical analysis shows that most variability in the planktonic foraminiferal relative abundance record ...

Interactive comment on “Glacial-interglacial variability in ocean oxygen and phosphorus in a global biogeochemical model” by V. Palastanga et al

Interactive comment on “Glacial-interglacial variability in ocean oxygen and phosphorus in a global biogeochemical model” by V. Palastanga et al

Carbonate dissolution in the deep SE Atlantic during the last 1.1 million years

Here we study the carbonate dissolution history of the deep SE Atlantic as evidenced in proxy records in Core T89-40 from the Walvis Ridge, spanning the last 1.1 million years. All dissolution proxy records (fragmentation index, ratio of planktonic and benthic foraminifera, sand fraction and number of planktonic foraminifera per gram sediment) show similar patterns, unique events, and these pro...