搜索结果: 61-75 共查到“国际动态 地质学”相关记录1008条 . 查询时间(1.224 秒)
Cascading events led to 2018 Kilauea volcanic eruption, providing forecast clues（图）
Cascading events 2018 Kilauea volcanic eruption providing forecast
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2020/12/11
The 2018 eruption of Kilauea volcano was one of the largest volcanic events in Hawaii in the last 200 years. The eruption was triggered by a relatively small and rapid change in the volcano after a de...
平行进化论再添证据——牙形刺远隔千里却发育模式相同
平行进化论 牙形刺 发育模式
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2020/11/27
平行进化观点认为，具有共同祖先的有机体即使彼此被分隔在相距千里的不同地域，也会以同样的方式进化。据物理学家组织网11月23日报道，德国爱尔兰根-纽伦堡大学和加拿大卡尔加里大学的古生物学家为平行进化提供了新的证据：他们利用在不同地理位置发现的二叠纪早期脊椎动物牙形刺化石发现，尽管生活在不同的地理区域，这些脊椎动物仍以几乎相同的方式适应各自栖息地。相关论文发表在《英国皇家学会会刊·生物科学》。
Geoscientists discover ancestral Puebloans survived on ice melt in New Mexico lava tubes（图）
Geoscientists ancestral Puebloans survived ice melt New Mexico lava tubes
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2020/12/11
For more than 10,000 years, the people who lived on the arid landscape of modern-day western New Mexico were renowned for their complex societies, unique architecture and early economic and political ...
Earliest example of a rapid-fire tongue found in 'weird and wonderful' extinct amphibians（图）
Earliest example rapid-fire tongue extinct amphibians
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2020/11/20
Fossils of bizarre, armored amphibians known as albanerpetontids provide the oldest evidence of a slingshot-style tongue, a U.S. National Science Foundation-funded study published in Sc...
No social distancing in the Cretaceous:New study finds earliest evidence for mammal social behavior（图）
No social distancing Cretaceous earliest evidence mammal social behavior
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2020/11/6
A new study led by U.S. National Science Foundation-funded paleontologists at the University of Washington and its Burke Museum of Natural History & Culture indicates that the earliest ...
ALMA shows volcanic impact on the atmosphere of Jupiter's moon Io（图）
ALMA volcanic impact atmosphere Jupiter moon Io
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2020/11/6
New radio images from the U.S. National Science Foundation-funded Atacama Large Millimeter/submillimeter Array, ALMA, show for the first time the direct effect of volcanic activity on the at...
白垩纪恐龙化石中发现血液寄生虫（图）
白垩纪 恐龙化石 血液寄生虫
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2020/11/3
巴西研究人员近日在英国《白垩纪研究》杂志上报告说，他们在恐龙化石中发现了一种血液寄生虫的微小化石。此前，科学界仅在琥珀中的昆虫身上或者动物粪便化石中发现过史前寄生虫化石，这是首次在宿主体内发现。巴西北里奥格兰德联邦大学、圣卡洛斯联邦大学和坎皮纳斯大学的研究人员在一只泰坦巨龙（白垩纪的一种草食恐龙）的化石中发现了这种寄生虫化石，它可能与恐龙生前所患骨髓炎有关。
如今生活在地球上的哺乳动物和鸟类都是恒温动物，幸存下来的它们，是如何获得这种自动保持体温稳定的能力的？据物理学家组织网10月16日报道，英国布里斯托尔大学古生物学家迈克·本顿教授在《冈瓦纳大陆研究》发表论文称，哺乳动物和鸟类的祖先从变温动物演变为恒温动物，源于它们大约2.5亿年前最大规模生物灭绝事件后生存下来的经历。这次发生在二叠纪—三叠纪的大灭绝事件，导致多达95%的生命丧生，包括96%的海洋生...
Body size of the extinct megalodon shark is off the charts（图）
Body siz extinct megalodon shark off the charts
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2020/10/16
A new study shows that the body size of the iconic gigantic or megatooth shark, about 15 meters (50 feet) in length, was indeed anomalously large compared to the body sizes of its relatives.Formally c...
丁氏花研究迈进一步——解开花朵演化之谜（图）
丁氏花 花朵演化
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2020/10/14
近日，《古昆虫学》刊发的一个来自中国、西班牙古生物学者的成果文章引发学界关注。研究者在2000万-1500万年前的琥珀化石中发现一种奇特的花。“长久以来，人们一直想搞清楚花是怎么来的。不久的将来，我们也许能彻底解开花的演化之谜。丁氏花的发现给我们提供了一条非常重要的线索，它的形态说明，花很可能就是纵向压缩的枝。” 中国科学院南京地质古生物研究所研究员王鑫告诉《中国科学报》。
Lost and found: Geologists 'resurrect' missing tectonic plate（图）
Lost and found Geologists resurrect missing tectonic plate
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2020/10/30
The existence of a tectonic plate named Resurrection has long been a topic of debate among geologists, with some arguing it was never real. Others say it subducted -- moved sideways and downward -- in...
地震台站观测结果揭示板块构造启动于20亿年前
地震台站 观测结果 板块构造 20亿年前
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2020/9/29
“板块构造”是20世纪地球科学的重大发现之一。板块运动导致地球物质能量交换强烈、火山-地震活跃、矿产油气资源富集、大气温度-氧含量适度，是地球维持宜居性的重要动力，也是地球有别于其他行星的关键标志。然而地球何时启动板块构造，并开启与其他行星不同的演化之路，是当今地球科学最具争议的问题之一，全球科学家利用不同手段进行探索，得出的结果可以从冥古宙（>40亿前）一直到新元古代（<10亿前），跨越近3/4...
How do stone forests get their spikes? New research offers pointed answer（图）
stone forests their spikes offers pointed answer
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2020/9/18
The researchers replicated the formation of these natural structures by creating sugar-based pinnacles, mimicking the soluble rocks that compose karst and similar topographies, then submerging them in...
How do stone forests get their spikes? New research offers pointed answer（图）
stone forests spikes pointed answer
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2020/9/11
Stone forests -- pointed rock formations that resemble trees -- populate regions of China, Madagascar, and many other locations worldwide. They are as majestic as they are mysterious, created by uncer...