چکیده :
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The Azolla event occurred in the middle Eocene epoch, around 49 million years ago, when blooms of the freshwater fern Azolla are thought to have happened in the Arctic Ocean. As they sank to the stagnant sea floor, they were incorporated into the sediment; the resulting draw-down of carbon dioxide has been speculated to have helped transform the planet from a "greenhouse Earth" state, hot enough for turtles and palm trees to prosper at the poles, to the icehouse Earth it has been since.
کلید واژگان :Azolla event, middle Eocene, Arctic Ocean, carbon dioxide, greenhouse Earth
ارزش ریالی : 300000 ریال
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جزئیات مقاله
- کد شناسه : 6150610593085904
- سال انتشار : 2017
- نوع مقاله : مقاله کامل پذیرفته شده در کنفرانس ها
- زبان : انگلیسی
- محل پذیرش : 4th Annual International Conference on Geology & Earth Science
- برگزار کنندگان : ATHENS INSTITUTE FOR EDUCATION AND RESEARCH, A World Association of Academics and Researchers
- تاریخ ثبت : 1396/06/31 22:15:30
- ثبت کننده : رضا معزی نسب
- تعداد بازدید : 198
- تعداد فروش : 0