Word: layerings
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...were bohemians growing up in suburbia. And everything was centered on Steven. When he was babysitting for us he'd resort to creative torture. One time he came into the bedroom with his face wrapped in toilet paper like a mummy. He peeled off the paper layer by layer and threw it at us. He was a delight, but a terror. And we kept coming back for more...
...environs can't compare to New York in terms of upbeat culture. This place is probably not even like Los Angeles if a bopping nightlife is what you seek. But don't let first sights hold your glance too long. Despite provincial images fostered by a thin layer of Brahmin aristocracy, Boston has not separated itself from other cultural hotspots...
...pudding to be served before they commit themselves to the idea of periodicity, let alone a particular model. Says Cornell Astronomer Carl Sagan: "None of the explanations is anything like fully satisfying." Yet all but a few diehards acknowledge the brilliance of the Alvarez work. They believe the iridium layer and subsequent discoveries indicate that impacts of extraterrestrial objects may have played a significant role in certain extinctions, either directly or by delivering a final coup de grace to species already debilitated by climatic changes...
...chiseled, Alvarez was struck by a configuration of sediment layers, which resembled a sandwich in stone. The bottom or older layer consisted of Cretaceous limestone, which was full of tiny fossils. On top was a second slice of limestone, from the Tertiary period, almost devoid of these fossils. Like other samples of rock from that era, it showed that the creatures alive during the late Cretaceous period had, by geological time scales, suddenly disappeared. In between the limestone layers was a dull red layer of clay about half an inch thick, first discovered by an Italian paleontologist around...
...Alvarezes' staunchest critics has been William Clemens, a paleontologist at the University of California, Berkeley. After systematically sampling parts of the eastern Montana area, he declared that the layer of iridium and the bones of the last surviving dinosaur were too far apart to share any meaningful connection. Besides, he asked, why should the mammals have survived any Cretaceous catastrophe? Says he: "If you're going to have a nuclear winter killing off the dinosaurs, why didn't it kill off everything else...