Word: fossilizing
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Though this scenario for the beginning of the ice age has been well documented by fossil records, scientists have long been uncertain about what caused the cooling. Now, after studying cylindrical-core samples of ocean sediment dug up by the deep-sea drilling ship Glomar Challenger, two University of Rhode Island researchers have found evidence that may help provide the answer. The telltale position of layers of volcanic ash found in the cores by Geologists James Kennett and Robert Thunell suggests that the first great ice age could have been set off by a worldwide series of volcanic eruptions...
When paleontology Student Douglas Lawson set out to explore Texas' Big Bend National Park three years ago, he was confident that his fossil hunt would be productive. After all, remnants of creatures ranging from the ferocious dinosaur Tyrannosaurus rex to the first true bird, Archaeopteryx, had already been unearthed in the fossil-rich wasteland. What Lawson found exceeded his wildest hopes: fragments of huge wing bones imbedded in a sandstone outcropping in a remote part of the park. Now, after comparing the bones with the remains of similar creatures found elsewhere, Lawson has announced that they belong...
...core of Kissinger's argument for a minimum price was that it was necessary to "bring about adequate investment in the development of conventional, nuclear and fossil energy sources." He urged the consuming nations to join the U.S. in a consortium that over the next ten years would invest $500 billion in developing nuclear power, synthetic fuels and other energy alternatives. At the same time, he made a carrot-and-stick offer to the OPEC countries. The oil producers, said the Secretary, can "accept a significant price reduction now in return for stability over a longer period. Or they...
...American leader of the expedition, Anthropologist Carl Johanson of Cleveland's Case Western Reserve University, rushed to Asfaw's find. "I recognized the fossil almost at once as one of the oldest human remains ever discovered." he recalls...
Johanson's fossil, which he thinks may be 4 million years old. could push the history of man even further back. His evidence that the jawbone belonged to Homo rather than a hominid is probably based on subtle differences: slight nuances of size and shape in the fossil teeth. But Johanson is convinced that these teeth belonged to a full-fledged Homo, who probably used them to eat meat, which he obtained by "using tools, possibly bones, to kill animals." Furthermore, since there is recent geological evidence that Ethiopia's Awash Valley may once have been part...