Description
From a broad sediment shelf at a depth of 56 meters in the main basin of Loch Sunart -- a fjord on the northwest coast of Scotland (56°40.20'N, 05°52.22'W) -- the authors extracted several sediment cores from which they developed a continuous thousand-year δ¹⁸O record of the shells of the benthic foraminifer Ammonia beccarii that extended all the way up to AD 2006; and when operating upon these data with a well-established palaeotemperature equation, the two scientists created a concomitant history of bottom-water temperatures that revealed the occurrence of a distinctive warm period between about AD 940 and 1050, during which time the peak warmth attained was approximately 0.3°C less than the peak warmth of the Current Warm Period.