Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
...rom the ring growth patterns preserved in wood and charcoal samples at 22 sites throughout the eastern Mediter...changes in climate and moisture) from the wood and charcoal remains of ancient tombs, gates and buildings unearthed at these sites. Using dendrochronology techn...Ocean Sediments Contain Record of Past Vegetation Fires in Africa
...era fires on land. Their paper, "Late Pleistocene charcoal in tropical Atlantic deep-sea sediments: Climatic ... land and the regional slope of the sea floor, the charcoal in this core must have been brought there by winds." The charcoal is a mixture of particles from bo...Project Shows Native Bacteria Can Destroy Widespread Pollutant In Groundwater
...ntaminants, which are then adsorbed onto activated charcoal filters. This approach wastes water, because the t...ldom reinjected into the aquifer. The contaminated charcoal also must be disposed. Energy costs can be high for pumping contaminated water from deep aquifers. T...10,000-Year-Old Clues Suggest Future Forest Changes
...ance such as fire. We have found a large amount of charcoal in the lake bottoms dating to that period (7,000-9,000 years ago) indicating forest fires," Mathewes explains. He attributes the fires to a drier, warmer climate with prolonged droughts and possibly to an increase in the number of storms. A chance di...Duke Studies Show U.S. Central Plains Vulnerable To Global Warming
...nd hiscolleagues analyzed pollen and fire-produced charcoal laid down in sediments inlakes in western Montana, the Dakotas, Nebraska, Minnesota and Wisconsin. Theiranalyses revealed the plants that dominated the region at various times duringthe period, as well as the incidence of fires fed by tallgrass prair...USGS studies wildfire ecology in the western United States
...ern Arizona University, he is reviewing pollen and charcoal deposits in soil cores extracted from several nort...receded it are clearly visible. "There is abundant charcoal throughout the core, except for the last couple of centimeters, corresponding to the past 125 years,...Researchers zero in on date of early hominids
...0,000 years, and it depends on the availability of charcoal or other organic material," he pointed out. "Potassium-Argon dating can be used from about 10,000 years to more than a billion years, depending on the rock, but it requires volcanic material, such as lava flows or volcanic ash. Because the Erk-el-Ah...A thermodynamic history traces temperature's effect on Universe, Earth and humans
...they moved ... from the Stone Age's first fires to charcoal and then to the bellows that produced bronze and iron. Going further, I would reach the steam engine, the nineteenth century's great Bessemer furnaces that made steel, and finally the Nuclear Age. ... For the past 200 years, I could use as a marker...July 4 fireworks: Why they're brighter than ever
...hina, someone discovered that a mixture of sulfur, charcoal and saltpeter (potassium nitrate) burned quickly and with a flash, the newsmagazine reports. The mixture, which later became known as gunpowder, was used in China for centuries to scare off evil spirits and, later, to fuel military rockets. Gunpowder...Sediment samples suggest how plants would fare in hotter, drier future
...es were based on an analysis of carbon isotopes in charcoal particles produced by fires and well preserved in the stratified layers of sediment. Because of the presence of aragonite, a carbonate mineral, at West Olaf Lake, climate data were extracted by using X-ray diffraction. Climate conditions at Steel Lak...Paleofire database puts fire-scar and charcoal data online
...ic fire records developed from tree rings and from charcoal in lake sediments are available for free for the f... past fire events from tree-ring evidence and from charcoal layers in lake sediments. The database is on the National Oceanic and Atmospheric Administration (NO...Droughts like 1930s Dust Bowl may have been unexceptional in prehistoric times, new study suggests
...as too little vegetation left to burn. The ages of charcoal deposits suggest instead that prairie fires occurr...e question was: Could we look at the sediments for charcoal evidence of the amount of fire, for pollen evidence of the kinds of grasses that were growing then, ...