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Partly melted rocks under Earth’s surface offer insights into what makes plate tectonics possible（图）
地球表面 板块构造 构造地质学
2023/6/26
Using seismic waves, scientists detect widespread partially molten rock hidden under the Earth’s tectonic plates in a new way, a step in settling a long-held geological debate that has big implication...
新生代以来的板块汇聚对欧亚古地理格局以及全球气候产生了深远的影响。这一过程主要受控于印度、阿拉伯、非洲板块与欧亚大陆的汇聚，板块的汇聚不仅导致了新特提斯海的向西关闭，也导致了特提斯构造域的造山带隆升、东亚季风的加强以及亚洲内陆中纬度的干旱化。对印度与欧亚板块碰撞的时间、过程、气候效应等方面已经有很多的研究，但是对西亚地区阿拉伯板块与亚洲板块的碰撞时间的争议较大，存在晚白垩、晚始新世-早渐新世、早中...
已知造山带的垮塌多发生在造山期后，王二七及其合作者开展的构造和沉积研究揭示，位于青藏高原东南缘的红河-哀牢山断裂带的伸展垮塌发生在造山主幕。
造山带是板块构造中最为活跃的单元。通常，一条造山带新生于刚性板块间的汇聚和挤压作用之下，在板块碰撞拼合之后，由于其身处板块内部，会因为风化剥蚀作用逐渐地销声匿迹。几千万或几亿年之后，在外部新的板缘构造体系的驱动下，这条古老的造山带会再次活动，形成高耸的山脉，称为重生。造山带的“新生与重生”是地球演化历史中的普遍现象，然而驱使造山带“旋回式”演化的动力如何持续与继承是当前地球动力学研究的争议性问题。...
了解俯冲板片与上覆岩石圈的耦合关系是认识增生造山机制这一前沿科学问题的关键。前人曾提出3种可能的增生造山机制模型，包括大洋岩石圈平板俯冲、地体增生/碰撞和板块重组，但对于地体增生/碰撞的增生造山效应尚未得到很好的例证。新疆北部是中亚增生造山带及其成矿域的重要组成部分，近年来已在该地区厘定出一系列古生代岛弧带及若干弧-弧碰撞拼贴事件，然而关于碰撞拼贴的时限和过程普遍存在争议。解决该问题不仅对重建新疆...
新生代印度板块持续北向挤压，不仅造成青藏高原隆升，还在高原及其周边产生了巨大构造变形。青藏高原东北部地区，作为印度-欧亚碰撞的远程响应地区，是高原生长的最年轻地区。理解高原东北部新生代以来挤压应力演化，对认识高原东北部地区构造活动过程、解决当前高原隆升变形模式争议等具有重要科学意义。该地区现今的应力研究主要采用GPS观测等，而对于地质时期的古应力研究极少。磁组构作为一种灵敏的应力变化指示计，能够有...
张朋、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（2019）, Palaeodrainage evolution of the large rivers of East Asia, and Himalayan-Tibet tectonics
河流体系；区域构造；盆地发育；时效快；精度高；易追踪
2021/10/20
近日，地球科学国际权威期刊《Earth-Science Reviews》刊发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，联合英国兰卡斯特大学Yani Najman教授等的研究成果。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张朋，梅廉夫教授与Yani Najman教授为共同通讯作者。
Earth has some special features that set it apart from its close cousins in the solar system, including large oceans of liquid water and a rich atmosphere with just the right ingredients to support li...
South Scandinavian joints and Alpine/Atlantic-ridge tectonics
joints neotectonics alps mid-atlantic ridge Sweden bohus granite Norway Scandinavia
2015/9/30
Field observations and studies of the joints and dykes in an area shed light on its younger tectonic development; thus, joint orientations measured in Southern Sweden and in Norway have been statistic...
The 8th ICGG International Conference on Gas Geochemistry Preface: Fluids and tectonics
fluids Geochemistry tectonics
2015/9/2
The 8th International Conference on Gas Geochemistry provided the opportunity
for scientists from different countries to meet each other, exchange ideas on the
state of the art in gas geochemistry, ...
Active tectonics around the Mediterranean region: site studies and application of new methodologies
Mediterranean region site studies
2015/8/26
More than 25 years have passed since the definition of Active Tectonics as "tectonic movements that are expected to occur within a future time span of concern to society", formulated in a milestone bo...
Active faulting and transpression tectonics along the plate boundary in North Africa
Tell Atlas North Africa Plate boundary Transpression
2015/8/26
We present a synthesis of the active tectonics of the northern Atlas Mountains, and suggest a kinematic model of transpression and block rotation that illustrates the mechanics of this section of the ...
Active compressional tectonics, Quaternary capable faults, and the seismic landscape of the Po Plain (northern Italy)
Active compressional tectonics paleoseismology seismic hazard Po Plain foredeep seismic landscape
2015/8/26
It is commonly believed that the Po Plain is an area of low seismic hazard. This conclusion is essentially a combination of two factors: (1) the historical record of earthquakes, which shows a relativ...
Characterising the origin, nature and fate of sediment exported from catchments perturbed by active tectonics
Characterising the origin, nature fate of sediment exported from catchments perturbed active tectonics
2014/5/20
Changes to the tectonic boundary conditions governing erosional dynamics in upland catchments have a significant effect on the nature and magnitude of sediment supply to neighbouring basins. While the...
Extensional Tectonics and the Geometry of Related Macroscopic Structures: Field Evidence from the Gediz Detachment, Western Turkey
Geometry Extensional Structure Gediz Detachment Fault Western Turkey
2009/7/8
The large-scale, low-angle Gediz detachment fault that constitutes the southern margin of the Gediz graben (also known as the Alaşehir graben) has macroscopic structures of extensional origin, su...