5 results match your criteria: "School of Ocean and Earth Science University of Southampton Southampton UK.[Affiliation]"

Carbon Mineralization in Fractured Mafic and Ultramafic Rocks: A Review.

Rev Geophys

December 2024

Earth and Environmental Sciences Division Los Alamos National Laboratory Los Alamos NM USA.

Mineral carbon storage in mafic and ultramafic rock masses has the potential to be an effective and permanent mechanism to reduce anthropogenic CO. Several successful pilot-scale projects have been carried out in basaltic rock (e.g.

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The microfossil record contains abundant, diverse, and well-preserved fossils spanning multiple trophic levels from primary producers to apex predators. In addition, microfossils often constitute and are preserved in high abundances alongside continuous high-resolution geochemical proxy records. These characteristics mean that microfossils can provide valuable context for understanding the modern climate and biodiversity crises by allowing for the interrogation of spatiotemporal scales well beyond what is available in neo-ecological research.

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Serpentinization and carbonation of mantle rocks (peridotite alteration) are fundamentally important processes for a spectrum of geoscience topics, including arc volcanism, earthquake processes, chemosynthetic biological communities, and carbon sequestration. Data from a hydrophone array deployed in the Multi-Borehole Observatory (MBO) of the Oman Drilling Project demonstrates that free gas generated by peridotite alteration and/or microbial activity migrates through the formation in discrete bursts of activity. We detected several, minutes-long, swarms of gas discharge into Hole BA1B of the MBO over the course of a 9 month observation interval.

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Article Synopsis
  • The early Eocene featured high CO2 levels (1,200-2,500 ppmv) and significantly warmer global temperatures (10°C-16°C above modern), but the impact on Africa's hydrological cycle is not well understood.
  • A study using advanced climate models highlights that while model biases exist when comparing pre-industrial simulations to modern data, these biases are reduced in the average of multiple models.
  • Results indicate that while precipitation increases in equatorial and West Africa with rising CO2, there is no distinct trend of wetting or drying for the continent as a whole, alongside notable changes in regional wind patterns.
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We document an exceptional large-spatial scale case of changes in tidal range in the North Sea, featuring pronounced trends between -2.3 mm/yr at tide gauges in the United Kingdom and up to 7 mm/yr in the German Bight between 1958 and 2014. These changes are spatially heterogeneous and driven by a superposition of local and large-scale processes within the basin.

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