Interglacial intensity in the North Atlantic over the last 800 000 years; investigating the complexity of the mid-Brunhes Event

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doi: 10.1002/jqs.2632
Author(s): Candy, Ian; McClymont, Erin L.
Author Affiliation(s): Primary:
Royal Holloway University of London, Department of Geography, Surrey, United Kingdom
Other:
Durham University, United Kingdom
Volume Title: JQS. Journal of Quaternary Science
Source: JQS. Journal of Quaternary Science, 28(4), p.343-348. Publisher: John Wiley and Sons for the Quaternary Research Association, Chichester, United Kingdom. ISSN: 0267-8179
Note: In English. 29 refs.; illus., incl. 1 table, sketch maps
Summary: The mid-Brunhes Event (MBE) represents a step-like increase, between Marine Isotope Stages (MIS) 13/11, in the intensity of interglacial warmth. A transect of palaeoclimatic records in the North Atlantic from 40°N to the Nordic Seas indicates strong differences in the expression of the MBE within this region. Between 40 and 56°N sea surface and air temperature records suggest that all interglacials of the past 800 000 years were characterized by similar levels of warmth, so there is no evidence for an MBE in these latitudes of the North Atlantic. North of 56°N there is increasing evidence for interglacials MIS 19-13 being cold relative to MIS 11-1. As most records of long-term interglacial diversity suggest the MBE is a global event the North Atlantic is clearly anomalous. Furthermore, the strong spatial difference in temperature conditions during interglacials MIS 19-13 in the North Atlantic means that the temperature gradient across this region would have been enhanced, in fact effectively doubled in magnitude, during this interval. Abstract Copyright (2013), John Wiley & Sons, Ltd.
Year of Publication: 2013
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Alkenones; Arctic Ocean; Atlantic Ocean; Brunhes Chron; Calcium carbonate; Cenozoic; DSDP Site 552; DSDP Site 607; Deep Sea Drilling Project; Foraminifera; Globigerinacea; IPOD; Icelandic Plateau; Interglacial environment; Invertebrata; Ketones; Leg 104; Leg 162; Leg 177; Leg 81; Leg 94; Microfossils; Mid-Atlantic Ridge; Neogloboquadrina; Neogloboquadrina pachyderma; North Atlantic; Northeast Atlantic; Norwegian Sea; ODP Site 1090; ODP Site 643; ODP Site 907; ODP Site 982; ODP Site 985; Ocean Drilling Program; Organic compounds; Paleoclimatology; Paleoenvironment; Paleotemperature; Protista; Quaternary; Rockall Bank; Rockall Plateau; Rotaliina; South Atlantic; Upper Quaternary; Voring Plateau
Coordinates: N664042 N674254 E0043436 E0010200
N560233 N560234 W0231323 W0231324
S425449 S425449 E0085359 E0085359
N410004 N410005 W0325726 W0325727
Record ID: 2013072364
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom