搜索结果: 1-12 共查到“海洋科学 Ancient”相关记录12条 . 查询时间(0.031 秒)
Shark teeth offer clues to ancient climate change（图）
Shark teeth clues ancient climate change
2021/2/5
A character in a great white shark movie said that all sharks do is "swim and eat and make little sharks."It turns out they do much more than that. Sharks have roamed Earth's oceans for more than 400 ...
Ancient molecules from the sea likely burst into the air from ocean waves（图）
Ancient molecules sea air ocean waves carbon cycle organic matter
2019/11/5
When waves break in the ocean, they inject tiny particles into the air, called aerosols, that carry organic molecules more than 5,000 years old. The discovery, published in Science Advances by Steven ...
Ancient Saharan seaway illustrates how Earth’s climate and creatures can undergo extreme change（图）
Ancient Saharan seaway illustrates Earth climate and creatures extreme change
2019/10/23
Here be ancient giants.A new paper in the Bulletin of the American Museum of Natural History describes the Trans-Saharan Seaway that existed 50 to 100 million years ago in the region of the current Sa...
Ancient lakes: eyes into the past,and the future（图）
Ancient lakes Limnology Oceanography.
2019/11/22
"A lake is a landscape's most beautiful and expressive feature. It is Earth's eye; looking into which the beholder measures the depth of his own nature." ---Henry David Thoreau, Walden.Baikal, Biwa an...
Ocean Waters Prevent Release Of Ancient Methane（图）
Ocean Waters Prevent Release Ancient Methane
2018/2/1
Ocean sediments are a massive storehouse for the potent greenhouse gas methane.Trapped in ocean sediments near continents lie ancient reservoirs of methane called methane hydrates. These ice-like wate...
Ancient Humans Left Africa to Escape Drying Climate（图）
Ancient Humans Left Africa Escape Drying Climate
2017/10/25
Humans migrated out of Africa as the climate shifted from wet to very dry about 60,000 years ago, according to research led by a University of Arizona geoscientist.Genetic research indicates people mi...
FSU Research:Ancient ocean deoxygenation provides an urgent warning（图）
FSU Research Ancient ocean deoxygenation urgent warning
2017/9/4
A 94-million-year-old climate change event that severely imperiled marine organisms may provide some unnerving insights into long-term trends in our modern oceans, according to a Florida State Univers...
Can an ancient ocean shoreline set the stage for a tropical forest of today?
ancient ocean shoreline set the stage tropical forest
2017/7/24
Find related stories on NSF's Critical Zone Observatory Sites. Find related stories on NSF's Long-Term Ecological Research Sites.Could an ancient ocean shoreline determine what a tropical forest looks...
Lab experiments question popular measure of ancient ocean temperatures
Lab question popular ancient ocean temperatures
2015/9/9
Understanding the planet’s history is crucial if we are to predict its future. While some records are preserved in ice cores or tree rings, other records of the climate’s ancient past are buried deep ...
A new study of stable isotopes in ancient rocks suggests that the oceans were much cooler 3.4 billion years ago than previously thought. The discovery that the ocean could have been cooler than 40 °C ...
Ancient Malindi coral reef tells story of soil erosion in Kenya（图）
Coral reefs soil erosion
2007/4/19
April 11, 2007，Coral reefs, like tree rings, are natural archives of climate change. But oceanic corals also provide a faithful account of how people make use of land through history, says Robert B. D...
Eutrophication of ancient Lake Ohrid: Global warming amplifies detrimental effects of increased nutrient inputs
Eutrophication of ancient Lake Ohrid Global warming amplifies detrimental effects increased nutrient inputs
2014/4/22
Lake Ohrid in southeastern Europe is one of the few ancient, long-lived lakes of the world, and contains more than 200 endemic species. On the basis of integrated monitoring of internal and external n...