基本信息
浏览量:63
![](https://originalfileserver.aminer.cn/sys/aminer/icon/show-trajectory.png)
个人简介
My research applies igneous petrology and geochemistry to problems of lithosphere and magmatic evolution.
Origin and evolution of the Archaean lithospheric mantle: The stabilization of the first large and robust continental land masses, termed cratons, is inexorably linked to the development of thick, strong lithospheric keels that extend 250 km below the surface. The strength and longevity of these cratonic roots stems from their strong geochemical depletion, which is widely considered to be the result of extensive and protracted melting of convecting mantle. Yet there remain significant uncertainties about the melting environment of the depleted cratonic root and its relationship to the early magmatism on Earth. Following initial formation, the cratonic lithosphere cooled to subsolidus temperatures and was subjected to metasomatism by percolating fluids and low degree melts, however the timing and extent of metasomatism and the origin of the metasomatic agent(s) remain uncertain. My work uses both natural samples (peridotite xenoliths and diamond inclusions) and model systems (thermodynamic and experimental) to understand the depth and conditions of mantle melting and to investigate the subsequent evolution of the depleted lithosphere.
Magma chamber processes and tephrostratigraphy: Many volcanic systems exhibit remarkable cyclic behaviour, each cycle starting with emplacement of less evolved magma and transitioning eruptions of evolved magma before culminating in cataclysmic eruption. My research is uses volcanic glass geochemistry to unravel processes taking place in the magma reservoir, both prior to a single eruption and throughout the eruption history of the volcano. In particular, detailed insight into the frequency-composition histories of hazardous volcanoes can be revealed by analysis of volcanic ash (tephra) layers in high resolution chronostratigraphic records. While, accurate identification of tephra from a given eruption in different locations allows eruption magnitude and tephra dispersal to be modelled. Finally, since tephra forms isochronous marker layers, they allow the various sedimentary records to be linked. High-precision correlations are critical for reconstructing the timing, rate and duration of paleoenvironmental changes and hence for testing theories about the causes and impacts of those changes.
研究兴趣
论文共 84 篇作者统计合作学者相似作者
按年份排序按引用量排序主题筛选期刊级别筛选合作者筛选合作机构筛选
时间
引用量
主题
期刊级别
合作者
合作机构
BMC Pregnancy and Childbirthno. 1 (2024): 1-9
JOURNAL OF QUATERNARY SCIENCE (2024)
METEORITICS & PLANETARY SCIENCEno. 4 (2024): 910-920
GEOLOGICAL MAGAZINEno. 5 (2023): 1010-1019
Natureno. 7952 (2023): 450-454
Lucy Blennerhassett,Dr. Emma Tomlinson
crossref(2023)
crossref(2022)
加载更多
作者统计
合作学者
合作机构
D-Core
- 合作者
- 学生
- 导师
数据免责声明
页面数据均来自互联网公开来源、合作出版商和通过AI技术自动分析结果,我们不对页面数据的有效性、准确性、正确性、可靠性、完整性和及时性做出任何承诺和保证。若有疑问,可以通过电子邮件方式联系我们:report@aminer.cn