Издательство SAGE Publications по журналам "The Holocene"
Отображаемые элементы 1-20 из 592
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(Sage Publications, 1991)A 1000-year reconstruction of winter (cool season) November-May precipitation for northern New Mexico is developed for AD 985-1970 based on six millenium-long tree-ring records from moisture-sensitive coniferous sites in ...
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(Sage Publications, 1993)Measurements of Rhizocarpon subgenus Rhizocarpon thalli in fixed-area (100-m 2) sample plots at 295 randomly selected localities above timberline in the Colorado Front Range suggest six episodes of widespread, shallow, ...
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(Sage Publications, 1997)Most research concerned with the relationship between volcanic activity and global climate change has focused on the impacts that volcanoes have on atmospheric temperature. Very little attention, however, has been given ...
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(Sage Publications, 1998-01-01)We present pollen and microscopic charcoal evidence from securely dated lake sediments, located in the Tuxtlas region of Veracruz, Mexico. Two periods of agricultural activity are recognized. ...
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(Sage Publications, 1997)A monolith of peat taken from an upland blanket mire at Talla Moss, southern Scotland, was sub jected to peat humification and pollen analyses to produce both a proxy-climate record and a vegetational history covering the ...
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(Sage Publications, 1995)A 750-year fire history was reconstructed for the Central Plateau of Yellowstone National Park from the deep-water sediments of five lakes. The charcoal record from a large lake provided a chronology of regional fires. ...
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(Sage Publications, 1996)A 930-year tree-ring chronology was constructed from living and subfossil white spruce (Picea glauca Moench) from the Campbell Dolomite Upland, Northwest Territories, Canada. Response function analy sis using climate data ...
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(Sage Publications, 1998-04-01)The Younger Dryas/Holocene transition (YD/H) in the sediments of Krkenes Lake, western Nor way, is well marked both lithologically and palaeobiologically at 756.5 cm in the investigated core. ...
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(Sage Publications, 1996)Stratigraphical analyses based on 1028 dated Holocene peat cores were used to estimate the rate of carbon accumulation in Finnish peatlands. Results were compared with data from other Boreal areas. The basal age of peat ...
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(Sage Publications, 1996)The soil-landscape chronogram summarizes the ways in which five slope-wash erosion cycles followed by two aeolian cycles interrupted postglacial soil formation in an enclosed hillslope system from hummocky moraine terrain. ...
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(Sage Publications, 1998-04-01)Recent publications have suggested that deposition of calcareous tufa and travertine in the British Isles has declined since the mid-Holocene. Several causal mechanisms have been postulated ...
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(SAGE Publications, 1992-07-01)
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(Sage Publications, 1997)A fine-resolution analysis of pollen, charcoal, magnetic susceptibility, sediment fractions and total carotenoids was used to investigate the last 2000 years of environmental history at Lake Keilambete, in western Victoria, ...
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(Sage Publications, 1997)This study employs sedimentological indices and lichenometric dating on the lichen species Plac opsis patagonica to investigate the nature and age of debris cones which have accumulated at the margins of the downwasting ...
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(SAGE Publications, 1992-03-01)Tephra deposits at Whitefish Lake and Cape Espenberg on the northernmost Seward Peninsula of western Alaska were derived from the Aniakchak Caldera on the Alaska Peninsula more than 1500 km to the south. Radiocarbon dates ...
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(Sage Publications, 1993)The response of a lake level to a shift in climate depends on characteristics of surficial and groundwater hydrology that are unique to that lake. Determination of the past levels of several lakes, rather than just one, ...
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(SAGE Publications, 1992-07-01)Palaeoenvironmental investigations have been made of late Quaternary sediments infilling the lower Tyne valley at Scotswood, Newcastle-upon-Tyne, 18 km upstream from the mouth of the river. Attention has focused on the ...
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(Sage Publications, 1994)A 61 cm core through a speleothem column in Drotsky's Cave, Botswana, has yielded a U-series dated pollen record of Holocene vegetation changes in the Kalahari Desert. Between c.10000-7000BP, the site was surrounded by an ...
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(SAGE Publications, 1992-07-01)A pollen record from a dunefield lake on Groote Eylandt, Northern Australia is presented. This is the first substantially complete Holocene terrestrial record from the seasonally humid lowland tropics of Northern Australia. ...
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(Sage Publications, 1996)A 5.45-m core from Lake Peten-Itza, lowland Guatemala, contains a near-complete record of Holo cene sedimentation. The age-depth relationship for the core is based on AMS 14C dating of terrestrial wood fragments and provides ...
Отображаемые элементы 1-20 из 592