نتایج جستجو برای: late holocene
تعداد نتایج: 201114 فیلتر نتایج به سال:
Wood mice of the genus Apodemus are an essential component of small mammal communities throughout Europe. Molecular data suggest the postglacial colonization of current ranges from south European glacial refugia, different in particular species. Yet, details on the course of colonization and Holocene history of particular species are not available, partly because of a lack of reliable criteria ...
Rebecca Turner Late Quaternary fire histories in the Eastern Mediterranean region from lake sedimentary micro-charcoals. The Eastern Mediterranean has a long history of human occupation, which spans the transition from hunter-gatherers to the establishment of early agro-pastoralist communities, coinciding with the Last Glacial: Interglacial transition. Over the same timeframe a delay in postgla...
Despite their great importance, Holocene–Late Pleistocene sediments are poorly studied in the valleys of rivers Krasnoyarsk forest-steppe territory. We present first detailed study geochemical composition floodplain terrace valley Berezovka River, and continuous accumulation that occurred at Late Pleistocene-Holocene (from 20833 ± 519 cal yr BP). This is fundamental importance basis for further...
6.15.8 PALEOTEMPERATURE STUDIES USING THE ALKENONE METHOD 413 6.15.8.1 Holocene High-resolution Studies 414 6.15.8.2 Millennial-scale Events of the Late Pleistocene and Last Glacial Termination 415 6.15.8.3 Marine Temperatures during the LGM 417 6.15.8.4 SST Records of the Late Pleistocene Ice Age Cycles 420 6.15.8.5 SST before the Late Pleistocene 421 6.15.8.6 Comparison with other Proxies: dO...
•A new species of Hawaiian finch is described from two fossil maxillae recovered from Holocene lacustrine sediments in Makauwahi Cave, island of Kaua'i. The new species is assigned to Loxioides on the basis of characters defined in a previous study of drepanidine phylogeny. The maxilla of the new species resembles that of L. bailleui (the only other member of the genus) in its distinctly foresh...
Understanding the timings of interhemispheric climate changes during the Holocene, along with their causes, remains a major problem of climate science. Here, we present a high-resolution 10Be chronology of glacier fluctuations in New Zealand's Southern Alps over the past 7000 years, including at least five events during the last millennium. The extents of glacier advances decreased from the mid...
Multi-proxy analysis was used to produce a high-resolution paleoclimatic record from an exceptionally thick section of the Holocene Bignell Loess near Wauneta, Southwestern Nebraska, in the central Great Plains. The Wauneta section has excellent age control, based on optically stimulated luminescence (OSL) and radiocarbon dating, and records multiple episodes of rapid loess deposition alternati...
The Middle Fork Salmon River watershed spans high-elevation mixed-conifer forests to lowerelevation shrub-steppe. In recent decades, runoff from severely burned hillslopes has generated large debris flows in steep tributary drainages. These flows incised alluvial fans along the mainstem river, where charcoal-rich debris-flow and sheetflood deposits preserve a record of latest Pleistocene to Hol...
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