Late quaternary sea-ice and sedimentary redox conditions in the eastern Bering Sea – Implications for ventilation of the mid-depth North Pacific and an Atlantic-Pacific seesaw mechanism

Abstract

Cit a tio n fo r fin al p u blis h e d ve r sio n: D e tl ef, H e n ri e k a, S o s di a n, Si n di a M ., B elt, Si m o n T., S mik, Luk a s , Le ar, C a r oli n e H ., Ke n d er, S ev, P e a r c e , C h ri s t of a n d H all, I a n R. 2 0 2 0. L a t e q u a t e r n a r y s e a-ic e a n d s e di m e n t a ry r e d ox c o n di tio n s in t h e e a s t e r n Be ri n g S e a -i m plic a tio n s for ve n til a tio n of t h e m i d-d e p t h N o r t h P a cific a n d a n Atla n tic-P a cific s e e s a w m e c h a ni s m . Q u a t e r n a r y S ci e n c e R evi e w s 2 4 8 , 1 0 6 5 4 9.

Deglacial Land-Ocean Linkages at the Alaskan Continental Margin in the Bering Sea

“…Such direct clues so far were not recognized in the Bering Sea (e.g., Cook et al, 2005;Caissie et al, 2010;Riethdorf et al, 2013) and not investigated in our record. However, changes in regional oceanic conditions are evident at the central Bering Slope, where biomarker records indicate a change towards marginal sea-ice conditions during late HS1 after 16 ka BP (Detlef et al, 2020). At the southern Bering Slope a strong pulse in the appearence of the diatom species Odontella aurita marks the time interval between 16 and 15 ka BP, indicating the onset of deglacial open-water diatom blooms (Caissie et al, 2010).…”