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Showing 1 to 20 of 21 for “"Last interglacial"”.
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Dating and Interpretation of Secondary Carbonate Deposits from the Last Interglacial
… Eemian suggest an unstable progression of the Last Interglacial, which terminated at 116 kyr. Thus, the classical Eemian lasted for about 10 kyr, which is the duration the Holocene has already reached. Another speleothem from Spannagel Cave formed during several warm periods of the past 250 …
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Innovative water tracers and water isotopes enhance Antarctic research with climate models
… palaeoclimate modelling on the early last interglacial (127 thousand years ago, ka). While marine sediment and ice core records suggest warmer Southern Ocean and Antarctica at 127 ka than preindustrial, state-of-the-art climate models do not reproduce the magnitude of warming when only …
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Rates of natural climate change : a study of speleothems
… transition from the penultimate glacial to the last interglacial at -140 Ka BP. The database suggests an age of 63 Ka BP for the maximum cold period within isotope stage 4. Isotope stage 3 contains three periods of increased number of growing speleothems, at 40,50 and 56 Ka BP mainly in low …
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The marine geology of False Bay
… sea-level, is dated by the writer as of Great Interglacial age. It is pointed out that the Stellenbosch river terraces, dated by A. Krige (1927) as Last Interglacial, can in no way be related to this period. Evidence is presented which suggests that the 50 to 60 ft., 20 to 25 ft. and 10 to 14 …
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Changes in Antarctic Bottom Water Formation During Interglacial Periods
<p>In the modern Southern Ocean and during the last interglacial period, Marine Isotope Stage 5, there are observations that point to reduced Antarctic Bottom Water (AABW) formation. These reductions are believed to be driven by an increase in the strength of the Southern Ocean density …
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Glaciomarine sedimentation at the continental margin of Prydz Bay, East Antarctica : implications on palaeoenvironmental changes during the Quaternary
… sediment cores cover the time intervals of the last 1.4 Ma (continental slope) and the last 12.8 cal. ka BP (MacRobertson shelf). The sediment deposits were mainly influenced by glacial and oceanographic processes and further by biological activity (continental shelf), meltwater input and …
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The effects of paleoclimate on the distributions of some North West African Lizards.
… are unavailable or unreliable. Therefore, the Last Interglacial (LIG ~120,000 -140,000 years BP) and Last Glacial Maxima (LGM~ 21,000 years BP) datasets were used as a surrogate to earlier interglacial and glacial maximum climates, to analyse species distributions under earlier climatic …
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Environmental granularity, rivers and climate history as shaping factors for species' distribution and diversity patterns
… supported; (3) changes in climate since the last interglacial period had been more drastic in Africa than in South America; therefore (4) more environmentally stable areas were found in South America which could have facilitated the persistence of species during this period of time; (5) …
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Quaternary glaciation in the Pindus Mountains, Northwest Greece
… A second glaciation occurred prior to the last interglacial, before <i>ca</i>. 127,000 years BP, and was characterised by glaciers that reached mid-valley positions. the height of the last glacial stage in Greece (30-20,000 <sup>14</sup>C years BP) is recorded by small cirque glacier …
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Coastal resources and nutrition among Middle Stone Age hunter-gatherers in the Southwestern Cape
… residues at archaeological sites dating to the Last Interglacial (120 000 years ago) at Klasies River Mouth, Blombos Cave, Hoedjiespunt and Sea Harvest, or earlier (164 000 years ago) at Pinnacle Point. The incorporation of marine foods into the diet is one of several forms of innovative …
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Small mammal faunal stasis in Natural Trap Cave (Pleistocene-Holocene), Bighorn Mountains, Wyoming
… faunal record (100 ka-recent) that spans the last glacial cycle, large portions of which are replicated in local rockshelters, which is used here to test for local causes of stasis. The Quaternary fauna of North America is relatively well sampled and dated, so the influence of spatial scale …
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Modeling the Greenland Ice Sheet response to climate change in the past and future
… evolution of the GIS has been simulated over the last glacial cycle using an ensemble of model versions. The model performance has been validated against field observations of the present-day climate and surface mass balance, as well as paleo information from ice cores. The GIS contribution to sea …
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Glacial-Interglacial Variability of Eastern Pacific Hydroclimate
… of reconstructions that extend beyond the Last Glacial Maximum (LGM; 19--23 ka). The work presented in this dissertation sheds new light onto the late Pleistocene climatic history of SWNA based on novel organic geochemical proxy reconstructions of eastern Pacific sea surface temperatures …
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Coral reefs of the Indo-Pacific and changes in global Holocene
… modern day sea level by at least 15 m since the last interglacial (125 ka).<br/>The role of the calcareous green alga Halimeda in the marine carbonate budget is still unknown both spatially and temporally for the Holocene. Here a quantification of the carbonate mass within the ribbon reefs and …
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New ice core records from West Antarctica and their spatial context: from 1000 to 100,000 years
… of the WAIS during warm periods, such as the Last Interglacial (LIG) when the WAIS is proposed to have retreated, and the Holocene prior to anthropogenic warming. Ice core records can be used to reconstruct climatic changes and infer past ice sheet configurations. However, existing long-term …
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Dynamic Topography of Madagascar and its Surroundings
… The intermediate terrace is dated to the last interglacial period using U-series techniques ($130.7\pm13.2$~ka). A tilt in terrace elevations from 9.3--2.8~m cannot be explained by glacial-isostatic adjustment. Instead, growth of a dynamic topographic swell may have tilted the land surface …
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The biostratigraphy, palaeoecology and geochemistry of a long lacustrine sequence from NW Greece
… climate of south-central Europe over the last 600,000 years. The site is known to have been extremely sensitive to past climatic change for three reasons: (i) temperate vegetation persisted throughout glacial stages (albeit at low frequencies), so the vegetational response to climatic …
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POPULATION GENOMICS, DISTRIBUTION AND REPRODUCTIVE ECOLOGY OF AN ITALIAN STENO-ENDEMIC CHASMOPHYTE, CAMPANULA RAINERI
… lineages, probably becoming isolated during the Last Interglacial (~ 120,000 years bp) due to habitat recolonization dynamics and subsequently during the LGM due to the persistence of the Valsassina glacier barrier. Within these two metapopulations, a more recent site-specific differentiation was …
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Reconstructing climate from the Dead Sea sediment record using high-resolution micro-facies analyses
… graded and slumped deposits including coarse clastic detritus. Core 5017-1 encompasses a succession of four main lithological units. Based on first radiocarbon and U-Th ages and correlation of these units to on-shore stratigraphic sections, the record comprises the last ca 220 ka, i.e. the …
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Lithological and climatic controls on fluvial landscape evolution of a post-orogenic dryland mountain belt
… event occurred along this reach during the last interglacial maximum MIS 5e (~124 – 119 ka), linked to more frequent penetration of high magnitude storms of subtropical origin, connecting the trunk river with ephemeral tributaries, hillslopes, and alluvial fans. Strath terrace incision …
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