搜索结果: 1-11 共查到“地球物理学 geoscience”相关记录11条 . 查询时间(0.015 秒)
地幔对流是驱动地球各种动力学行为的引擎,直接或间接导致了几乎所有大尺度的构造和地质活动(Davies,1999)。地幔对流也会对岩石圈施加垂向的应力,使地表产生起伏,这一起伏称为动力地形。地表地形主要受均衡地形——地壳和岩石圈厚度及密度横向不均匀导致的地形——所控制,但动力地形是窥探深部地幔动力学的重要窗口。学者通常用两种方式来约束它的空间分布和振幅。一种是通过从观测地形中去除沉积物、地壳厚度等岩...
地球表面化学环境在地质历史时期发生了重大的变化,其中24-22亿年前的早元古代大氧化事件(Great Oxidation Event,GOE)和8-5亿年前新元古代大氧化事件(Neoproterozoic oxidation Event,NOE),使地球从完全缺氧的状态逐渐过渡到现代的氧化水平(Lyons et al., 2014)。这些氧化事件也深刻地影响着其他元素的地球化学循环过程,比如氧化还...
自2009年以来,美国中部和东部大部分地区中小地震数量显著增加,尤其是以非常规油气高产量著称的俄克拉荷马州的地震活动在大范围内急剧增加,引起广泛关注,这直接影响了正常的油气开发和地区生存环境的安全。针对上述地区的地震问题,2014年康纳尔大学的Keranen等在Science上撰文,建立了地震活动性和水文地质模型,研究了深部注入流体的压力传播范围及其触发地震的阈值压力,建立了深部废水回注与诱发地震...
硅酸盐月球Hf/W比值的确定对月球W同位素数据解读至关重要。新的实验数据显示硅酸盐月球具有高于硅酸盐地球的Hf/W比值。结合月球W同位素组成推算,月球可能形成于太阳系形成后约50 Myr。
后发地震能够让前发地震断层加快“愈合”?Nature Geoscience刊发中国石油大学(北京)钮凤林教授等最新研究成果(图)
后发地震 前发地震 断层 Nature Geoscience 钮凤林 教授
2019/4/29
2019年4月15日,《自然》杂志子刊物、地球科学领域国际顶尖杂志《自然-地球科学》(Nature Geoscience)在线发表了中国科学院裴顺平研究员和中国石油大学(北京)、美国莱斯大学钮凤林教授等共同完成的研究论文Seismic velocity reduction and accelerated recovery due to earthquakes on the Longmenshan ...
SEAM Workshop, Expanding our Understanding of Geoscience
Signal processing Non-seismic modeling
2016/7/27
Join the geoscientists who have been involved in building SEAM models, along with the teams that are using these large-scale Earth models and their simulated geophysical data in the research and devel...
“Scientist as a game”: learning geoscience via competitive activities
Science outreach Education Seismic and volcanic hazard
2015/8/14
Nowadays, science communication is considered as one of the major challenges that research institutions are required to face. The strategies to attract public interest, the choice of the correct langu...
Associate Professor Kristopher Innanen,Department of Geoscience is a vibrant cornerstone of the University of Calgary(图)
Associate Professor Kristopher Innanen Department of Geoscience is a vibrant cornerstone of the University of Calgary Seismic Signal Analysis
2014/4/16
Kristopher Innanen,Associate ProfessorCREWES,+1 (403) 210-6837,Earth Sciences 212 (Classroom),k.innanen@ucalgary.ca,Website:http://www.ucalgary.ca/innanen/,Currently TeachingW2014 - GOPH 355 - Explora...
New Indivisible Geoscience Paradigm
Indivisible Geoscience Paradigm Earth's interior Geophysics
2011/8/4
Abstract: Earth's interior, I posit, is like one of the rare, oxygen-starved "enstatite chondrite" meteorites (and unlike a more-oxidized "ordinary chondrite" as has been believed for seventy years). ...
Solving Problems of Lithosphere:The First Finnish Workshop on the Global Geoscience Transect (GGT) Project
Lithosphere Workshop Geoscience Transect
2009/6/15
Solving Problems of Lithosphere:The First Finnish Workshop on the Global Geoscience Transect (GGT) Project.