TY - JOUR T1 - Holocene sea-surface temperature variability in the Chilean fjord region JF - Quaternary Research Y1 - 2014 A1 - Caniupán, Magaly A1 - Lamy, Frank A1 - Lange, Carina B. A1 - Kaiser, Jérôme A1 - Kilian, Rolf A1 - Arz, Helge W. A1 - León, Tania A1 - Mollenhauer, Gesine A1 - Sandoval, Susana A1 - De Pol-Holz, Ricardo A1 - Pantoja, Silvio A1 - Wellner, Julia A1 - Tiedemann, Ralf AB - Here we provide three new Holocene (11–0 cal ka BP) alkenone-derived sea surface temperature (SST) records from the southernmost Chilean fjord region (50–53°S). SST estimates may be biased towards summer temperature in this region, as revealed by a large set of surface sediments. The Holocene records show consistently warmer than present-day SSTs except for the past ~ 0.6 cal ka BP. However, they do not exhibit an early Holocene temperature optimum as registered further north off Chile and in Antarctica. This may have resulted from a combination of factors including decreased inflow of warmer open marine waters due to lower sea-level stands, enhanced advection of colder and fresher inner fjord waters, and stronger westerly winds. During the mid-Holocene, pronounced short-term variations of up to 2.5°C and a cooling centered at ~ 5 cal ka BP, which coincides with the first Neoglacial glacier advance in the Southern Andes, are recorded. The latest Holocene is characterized by two pronounced cold events centered at ~ 0.6 and 0.25 cal ka BP, i.e., during the Little Ice Age. These cold events have lower amplitudes in the offshore records, suggesting an amplification of the SST signal in the inner fjords. VL - 82 UR - http://www.sciencedirect.com/science/article/pii/S0033589414000933 IS - 2 JO - Holocene sea-surface temperature variability in the Chilean fjord region ER -