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北京大学化学与分子工程学院李扬在Geology和Nature Geoscience发表论文，通过石英解读成矿过程和地球演化历史（图）
李扬 Geology Nature Geoscience 石英解读
2023/2/16
2023年2月7日，Geology在线发表北京大学地球与空间科学学院李扬副教授与合作者完成的题为“Transient tin mineralization from cooling of magmatic fluids in a long-lived system”的研究成果；2月8日，Nature Geoscience刊出李扬副教授与合作者题为“Quartz for all time”的邀请论文...
晚二叠世生物大灭绝事件（EPME）是显生宙最严重的一次生物灭绝事件，导致了超过80%海洋生物种的消失，同时重创了陆地生态系统。浙江长兴县煤山剖面主要为浅海相-斜坡相生物碎屑灰岩，完整记录了晚二叠世海相生物灭绝过程；该剖面包括了二叠纪-三叠纪界线（PTB）和长兴阶-吴家坪阶界线两个“金钉子”（ GSSP），因此在国际晚二叠世生物大灭绝研究中至关重要。
中国东北地区松辽盆地北缘及其东西两翼发育众多的第四纪板内火山，包括长白山火山、龙岗火山、镜泊湖火山、阿巴嘎火山、哈拉哈火山、五大连池火山、诺敏河火山等。这些年轻板内火山的形成机制及其深部动力学过程是涉及西太平洋地球系统多圈层相互作用的核心科学问题，也是推进解决与板块深俯冲相关重大地球科学问题的关键。
华北、华南和塔里木三个克拉通共同构成了中国大陆的基本格架，三个克拉通的形成过程和早期构造演化历史一直是国内地学界研究的重点。华北和华南的研究显示，两个克拉通的最终形成均由两个陆块元古代碰撞拼贴完成，华北克拉通在古元古代由东部和西部两个陆块拼贴形成，华南克拉通在新元古代由扬子和华夏两个陆块拼贴形成。塔里木是否也具有类似华北克拉通和华南克拉通的形成和演化历程，在某一时期由两个陆块拼贴形成？这一问题近些...
THE GEOLOGY OF JOSEPHINITE IN THE JOSEPHINE PERIDOTITE, SOUTHWEST OREGON
Metal alloy mineral oxide and silicate sulphide andradite garnet petrochemical base rock
2014/10/22
Josephinite, a mineral assemblage of native metal alloys, oxides, silicates and sulfides, is found in serpentinized portions of the Josephinie peridotite and as placer nuggets along Josephine Creek. J...
Geology and Geomorphology of the Manipur Valley Using Digitally Enhanced Satellite Image and SRTM DEM in the Eastern Himalaya, India
Imphal Valley Remote Sensing and Geographical Information Systems
2012/10/31
Landsat ETM+ data and SRTM DEM data were used to delineate the geological, structural and geomorphological features in the intermontane Imphal Valley in Manipur, India. This area has simple geology, s...
Geology and Correlation of the Mersin Mélanges, Southern Turkey
description earth sciences palaeotectonic implications
2011/3/21
This paper aims to give a thorough description of the infra-ophiolitic mélanges associated with the Mersin ophiolite. We propose new regional correlations of the Mersin mélanges with other mélange-lik...
New insights into the geology of high-grade Caledonian marbles based on isotope chemostratigraphy
New insights geology high-grade Caledonian marbles isotope chemostratigraphy
2009/12/3
A first attempt to employ carbon and strontium isotope stratigraphy together with 1.20,000 scale mapping for chronstratigraphic subdivision and geological correlation of non-fossiliferous sedimentary ...
Geology of a magma transfer zone:the Hortavær Igneous Complex,north-central Norway
Geology magma transfer zone Hortavæ r Igneous Complex north-central Norway
2009/12/3
The Hortavær intrusive complex consists of a wide range of plutonic rocks, from gabbro (calcic) to alkali feldspar syenite (alkalic). Emplacement at 456 ± 8 Ma (U-Pb, titanite) was primarily as ...
Martian sub-surface ionising radiation:biosignatures and geology
Martian sub-surface ionising radiation biosignatures geology
2007/7/30
The surface of Mars, unshielded by thick atmosphere or global magnetic field, is exposed to high levels of cosmic radiation. This ionising radiation field is deleterious to the survival of dormant cel...