搜索结果: 1-15 共查到“国际动态 岩石学”相关记录43条 . 查询时间(1.647 秒)
国际大洋发现计划成功获取地幔岩石样本
国际大洋发现计划 成功获取 地幔岩石样本
2024/1/16
近期，国际大洋发现计划（IODP）的JOIDES Resolution海洋钻探船在大西洋中部的海床下成功采集到地幔岩石样本，并且许多样品结构完整。该发现有望为地球地质构造、岩浆及火山活动、远古生命起源以及地球物理等研究领域开启新篇章。
How do stone forests get their spikes? New research offers pointed answer（图）
stone forests their spikes offers pointed answer
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
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...
Subduction zones -- places where one tectonic plate dives beneath another -- are where the world’s largest and most damaging earthquakes occur. A new study has found that when underwater mountains, al...
澳大利亚神秘岩画揭开面纱
澳大利亚 神秘岩画 揭开面纱 舞蹈人像
2020/2/10
1891年，在澳大利亚西北部金伯利地区的一处岩石上，迷路的牧场主Joseph Bradshaw偶然发现了一些桑葚色的舞蹈人像。Joseph被迷住了，这些岩画与他从前见过的完全不同。从那时起，这些如今被称为Gwion的纤细、精致的岩画人像，一直困扰着考古学家。他们既不知道这些画作的年代，也不清楚岩画的作者。让人没想到的是，黄蜂窝揭开了这些秘密。近日，科学家利用岩画附近黄蜂窝化石中微小的木炭，为这些画...
Study explores how rock expands near soil surface in Sierra Nevada（图）
rock expands soil surface Sierra Nevada
2019/10/18
A University of Wyoming researcher and his team have discovered that weathering of subsurface rock in the southern Sierra Nevada Mountains of California is due more to rocks expanding than to chemical...
Clues found on how soils may respond to climate change（图）
how soils respond climate change
2019/10/22
Rock core samples from a period of warming millions of years ago indicate that soils contributed to a rapid rise in atmospheric greenhouse gases and suggest that modern climate models may overestimate...
新研究发现岩石也能释放氮
新研究 岩石 释放氮
2018/4/12
科学界普遍认为地球上植物所吸收的氮都来自大气。但一项美国最新研究指出，自然生态系统中高达26％的氮来源于岩石，其余的则来自大气。研究人员分析了在加州北部采集的古岩石样本，发现那里的岩石和周围的树木含有大量的氮。他们在这一发现基础上，用全新的数学模型分析了地球的氮平衡，认为岩石风化释放氮是全球生态系统中氮的一种重要来源，自然生态系统中高达26％的氮来源于岩石。
Song of the red rock arches（图）
Song red rock arches
2017/12/19
It starts out as a rumble, like something heard underwater. It rises and falls in waves that pass one after another. But it couldn't be farther from the sea.
This is what the red rock arches of the C...
ASU geoscientists explain puzzling pockets of rock deep in Earth's mantle（图）
ASU geoscientists puzzling pockets rock deep Earth's mantle
2017/9/1
A team led by geoscientists from Arizona State University and Michigan State University has used computer modeling to explain how pockets of mushy rock accumulate at the boundary between Earth's core ...
Rock Samples Indicate Water is Key Ingredient for Crust Formation
Rock Samples Indicate Water Crust Formation
2017/7/19
By examining the cooling rate of rocks that formed more than 10 miles beneath the Earth’s surface, scientists led by The University of Texas at Austin Jackson School of Geosciences have found that wat...
Old Rocks,Biased Data:Overcoming Challenges Studying the Geodynamo
Old Rocks Biased Data Overcoming Challenges Studying Geodynamo
2017/3/13
Gleaning data from old rocks may result in bias. Now, geophysicists have a way to improve their methods to overcome challenges in studying the history of the Earth's core and magnetic field that make ...
UW Study:Ancient Rocks of Tetons Formed by Continental Collisions
UW Study Ancient Rocks Tetons Formed Continental Collisions
2016/2/22
University of Wyoming scientists have found evidence of continental collisions in Wyoming’s Teton Range, similar to those in the Himalayas, dating to as early as 2.68 billion years ago.
Yellowstone magma discovery
Yellowstone magma
2015/4/30
A team of University of Utah seismologists has discovered a reservoir of hot, partly molten rock hidden 12 to 28 miles beneath Yellowstone's supervolcano--enough to fill the 1000 cubic-mile-Grand Cany...
Tales from a Martian Rock（图）
Tales Martian Rock
2014/12/30
A new analysis of a Martian rock that meteorite hunters plucked from an Antarctic ice field 30 years ago this month reveals a record of the planet's climate billions of years ago, back when water like...