When the Land Turned Green

当土地变成绿色时:缅因州发现*批陆地植物

发育生物学,古生物学

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240.00
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作      者
出  版 社
出版时间
2022年10月15日
装      帧
精装
ISBN
9781684750320
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页      码
178
开      本
9.00 x 6.00 x 0.50
语      种
英文
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库存 30 本
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图书简介
Deep in the wilderness of northern Maine in the mid-1950s, a Harvard PhD student is wading down a mountain stream into a remote valley. He is taking his first steps to map the geology of 300 square miles of Baxter State Park. He soon discovers a series of unusually shaped rock outcrops—part of an unknown geologic formation, hundreds of millions of years old, still mystifying today because of its relative lack of change despite nearby volcanic activity and massive land movement. Wading on, he has another surprise. In a thin layer of black shale beside the stream, he finds a small fossil of a plant.Little does he know, but his discovery of Pertica quadrifaria will help scientists unlock the details of a major event in the history of our planet—the transition of plants to land, an occurrence that continues to have a critical influence on the Earth’s life-supporting processes, including climate. The 400-million-year-old, Devonian Era Pertica fossils have been found nowhere else on Earth but that enigmatic
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