搜索结果: 1-15 共查到“知识要闻 理学 Earth”相关记录58条 . 查询时间(0.114 秒)
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中国科学院广州地球化学研究所刘亮等-Communications Earth & Environment:板块间横向挤压在伊豆-小笠原-马里亚纳俯冲起始中的关键作用(图)
刘亮 岩浆 演化 数值
2024/5/21
大洋板块俯冲是地球浅表最具代表性的地质过程之一。理论上来讲,大洋板块在形成之后的20-40 Myr内,就已经具备了发生俯冲的密度等自身属性条件。然而,50%以上的大西洋板块形成于40 Ma之前,至今却几乎没有发生俯冲;位于地中海东部的部分大洋块体甚至已在地表存在了3亿年之久。因此,除了大洋板块自身的属性外,新俯冲的开启往往还伴随某种外部因素的存在、以打破大洋板块与上盘之间的平衡状态,如:横向或纵向...
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中国科学院地理科学与资源研究所生态水文课题组在《ACS earth and space chemistry》揭示吞吐型湖泊水—气界面碳交换驱动机制(图)
生态水文课题组 《ACS earth and space chemistry》吞吐型湖泊 水—气界面碳交换
2023/1/11
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中国科学院大气物理研究所One Earth:全球2℃增温可能造成小麦价格峰值增加,提升主粮自给是全球粮食生产安全的关键(图)
气候变化 全球2℃增温 小麦价格峰值增加 全球粮食生产安
2022/3/21
小麦是一种起源于温带的喜凉作物,是全球三大谷物之一,每年提供了全球人口20%的蛋白质和卡路里。目前气候变化的小麦影响评估研究主要集中于研究气候平均态的变化对小麦产量的影响和模型不确定性上。但产量仅是粮食安全问题的一个方面,国际农业贸易也是全球众多国家保持粮食供给的重要手段。因此粮食安全的其它维度(如,农产品价格、农业相关的社会经济与民生问题)同等重要,但相关研究非常有限。
中国地质大学科学技术发展院叶青(博士研究生),梅廉夫*等 资源学院 构造与油气资源教育部重点实验室 Earth-Science Reviews, Dec 2018, The Late Cretaceous tectonic evolution of the South China Sea area: An overview, and new perspectives from 3D seismic reflection data
南海;北部;陆缘盆地;结构;演化方面
2021/10/20
日前,地球科学Earth-Science Reviews刊发了中国地质大学资源学院和构造与油气资源教育部重点实验室梅廉夫教授团队关于南海北部陆缘盆地结构和演化方面的成果。论文第一单位为构造与油气资源教育部重点实验室,第一作者为博士研究生叶青,通讯作者为梅廉夫教授。
中国地质大学科学技术发展院王向东(博士研究生),赵来时*等 GPMR国家重点实验室 Earth and Planetary Science Letters(2019), Global mercury cycle during the end-Permian mass extinction and subsequent Early Triassic recovery
晚二叠;纪末;生物;大绝灭;早三叠;生物;复苏;时期;全球;汞循环
2021/10/20
近日,中国地质大学地质过程与矿产资源国家重点实验室赵来时教授团队在Nature Index 杂志——《Earth and Planetary Science Letters》发表题为《晚二叠纪末生物大绝灭及早三叠生物复苏时期全球的汞循环》(Global mercury cycle during the end-Permian mass extinction and subsequent Early...
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中国地质大学科学技术发展院许磊,陈能成 等, 国家地理信息系统工程技术研究中心. Earth-Science Reviews (2021),Spatiotemporal forecasting in earth system science: Methods, uncertainties, predictability and future directions(图)
时空;预测;问题;信息;系统;工程
2021/10/14
近日,国家地理信息系统工程技术研究中心陈能成教授团队在地球科学领域顶级期刊《Earth-Science Reviews》(IF=12.413)上刊发研究成果—Spatiotemporal forecasting in earth system science: Methods, uncertainties, predictability and future directions。该文针对地球系统...
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随着经济增长和社会发展,气候变化越来越重要,成为全球面临的巨大问题和挑战。2015年《巴黎协定》在第21届联合国气候变化大会上通过,成为全球气候治理进程中新的里程碑。然而气候协定中的国家自主贡献、资金机制和全球盘点在没有强制的情况下是否有效仍存在争议(图1)。近日国际期刊Cell子刊One Earth发表了北师大系统科学学院与数学科学学院、Universidade do Minho合作的最新研究成...
Scientists detect characteristics of the birth of a major challenge to harvesting fusion energy on Earth
out of control electronics fusion energy damage of electronic
2021/8/11
Novel camera detects the birth of high-energy runaway electrons, which may lead to determining how to prevent damage caused by the highly energetic particles.
Highest-resolution measurements of asteroid surface temperatures ever obtained from Earth
asteroid belt solar system surface temperature
2021/8/9
A close examination of the millimeter-wavelength emissions from the asteroid Psyche, which NASA intends to visit in 2026, has produced the first temperature map of the object, providing new insight in...
Solving solar puzzle could help save Earth from planet-wide blackouts
space weather prediction convection sunspots
2021/8/6
Understanding the Sun's magnetic dynamo could help predict solar weather, such as potentially dangerous geothermal storms, solar flares and sunspots. Mathematicians have proposed a new model of the Su...
Lava lamp tectonics: Research suggests giant blobs of subducted sediment float up through deep Earth
lava lamp structure subduction sediment earthcrust
2021/8/6
Sand and mud subducted off the coast of California around 75 million years ago returned to the Earth's crust by rising up through the mantle as enormous diapirs, like blobs in a lava lamp, new researc...
Decline in CO2 cooled Earth’s climate over 30 million years ago
earth's climate CO2 greenhouse
2021/8/5
New research demonstrates that a decline in the concentration of atmospheric CO2 played a major role in driving Earth's climate from a warm greenhouse into a cold icehouse world around 34 million year...
Earth's vital signs worsen amid business-as-usual mindset on climate change
climate risk earth system global warming carbon dioxide emissions
2021/8/4
Twenty months after declaring a climate emergency and establishing a set of vital signs for the Earth, a coalition headed by two Oregon State University researchers says the updated vital signs "large...
Selenium may support deep microbial life in Earth's continental crust
microbial earthcrust Se ecological system
2021/8/5
International drilling efforts over the last decades into the seafloor have provided increasing evidence for the existence of an extensive deep biosphere below the seafloor. There, circulating fluids ...