Forskning vid Uppsala universitet

Forskningsprojekt från 2019-01-01 till 2022-12-31

Large Igneous Provinces (LIPs) are of enduring interest to scientists and the general public because of their link to paleoclimate change, mass extinctions, evolution of life, and economic ore deposits ...

Forskningsprojekt från 2014-01-01 till 2016-12-31

The sources of volcanic geothermal energy are a poorly understood phenomenon. This is especially true in Indonesia, one of Earth?s most populous countries and most volcanically active areas. Despite ~130 ...

Forskningsprojekt från 2014-12-01 till 2018-06-30

Syfte och mål: StartGeoDelineation´s innovative exploration solutions were tested at two geologically different environments: Siilinjärvi alkaline-carbonatite deposit in Finland and Blötberget iron-oxide ...

Forskningsprojekt från 2021-01-01 till 2023-12-31

Oxygen is essential for the health of lake ecosystems, but global climate warming may severely deplete oxygen concentrations by increasing microbial respiration rates and stifling atmospheric exchange. ...

Forskningsprojekt från 2014-01-01 till 2017-12-31

This proposal concerns the origin of low d11B magmas. These peculiar magmas are usually inferred to reflect recycling of dehydrated subducted slab components with highly fractionated, low d11B values to ...

Forskningsprojekt från 2013-01-01 till 2016-12-31

The rapid accumulation of anthropogenic CO2 in the atmosphere has raised the fear of global warming, which can have serious consequences to mankind, such as rise in sea level and catastrophic floods in ...

Forskningsprojekt från 2011-01-01 till 2013-12-31

Large quantities of DOC (dissolved organic carbon) are washed from the terrestrial environment into inland waters, where it is degraded and evaded as CO2 and CH4 to the atmosphere, buried in the sediment ...

Forskningsprojekt från 2018-06-01 till 2018-12-31

According to the NASA Astrobiology Roadmap (Des Marais et al., 2008), a biosignature is, "an object, substance and pattern whose origin specifically requires a biological agent". When preserved in rocks ...

Forskningsprojekt från 2013-01-01 till 2015-12-31

The project objective is to reveal the biological affinities of organic-walled microfossils, which presumably represented phytoplankton from the Proterozoic and Cambrian times, through phenotypic studies ...

Forskningsprojekt från 2013-01-01 till 2015-12-31

In efforts to define how much carbon is being sequestered in the soil and vegetation, the importance of greenhouse gas (GHG) evasion from inland water that returns terrestrial C & N to the atmosphere via ...

Forskningsprojekt från 2016-01-01 till 2019-12-31

The Paleocene-Eocene Thermal Maximum (PETM), a period of global warming some 55 Ma, was triggered by multiple injections of isotopically light carbon into the atmosphere. Methane venting due to magma intrusion ...

Forskningsprojekt från 2020-12-01 till 2024-11-30

Kiruna-type iron-oxide-apatite ores are key sources of iron for modern industry, yet their origin is highly controversial and existing formation models range from low-temperature hydrothermal processes ...

Forskningsprojekt från 2013-01-01 till 2015-12-31

The goal of the proposed research is to investigate pressure-temperature paths of eclogites and peridotites occurring within the Seve Nappe Complex of the central Swedish Caledonides in northern Jämtland ...

Forskningsprojekt från 2013-01-01 till 2016-12-31

Andesite volcanoes are relatively common and extremely hazardous but the processes responsible for their magma generation are only partly understood. Andesite genesis is equivocal with proposed models ...

Forskningsprojekt från 2019-01-01 till 2022-12-31

Seismological observations indicate that large regions within Earth show directionally dependent seismic wave speeds. Such seismic anisotropy is a unique and invaluable indicator for material transport ...

Forskningsprojekt från 2021-01-01 till 2024-12-31

The purpose of this project is to understand the evolution of the Moon’s mantle through time by deciphering the origin of the chemical characteristics of lunar basaltic rocks. To achieve this goal, this ...

Forskningsprojekt från 2021-01-01 till 2024-12-31

The recent realisation that large, molten magma chambers are extremely rare and that magma chambers instead form by the amalgamation of small magma pulses over long time obviously changes our view of the ...

Forskningsprojekt från 2018-01-01 till 2020-12-31

Kvicksilver (Hg) är en giftig tungmetall som ackumuleras i akvatiska ekosystem, och utgör ett hot mot djur och människor i Arktis. Detta projekt syftar till att identifiera källor av Hg som kommer in i ...

Forskningsprojekt från 2018-05-01 till 2019-06-29

Syfte och mål: Målet med projektet var att utveckla/utvärdera en metod att bekämpa ogräs från drönare. Det visade sig att den ursprungliga idéen att använda laser var problematisk. Däremot visade sig ...

Forskningsprojekt från 2017-01-01 till 2020-12-31

Large Igneous Provinces (LIPs) have seen renewed interest due to their rapid assembly, their ore potential, and their ability to affect global climate. The High Arctic Large Igneous Province (HALIP) exposed ...

Forskningsprojekt från 2018-01-01 till 2018-01-09

Kvicksilver (Hg) ackumuleras i som monometylkvicksilver (MMeHg) i marina födovävar till koncentrationer som utgör en risk för människors och djurs hälsa. Det är idag okänt om framtida förändringar i de ...

Forskningsprojekt från 2018-01-01 till 2021-12-31

Precise in situ measurements of nickel isotopes in fossilized microorganisms holds great potential for differentiation between non-biologic and biologic microstructures in rocks. Living organisms scavenge ...

Forskningsprojekt från 2015-01-01 till 2018-12-31

This project aims to study oxygen isotopic composition of living and fossil shark teeth, to determine their reliability as a geochemical tool to explore ecology, environment and climatic changes of the ...

Forskningsprojekt från 2021-01-01 till 2024-12-31

Organic matter (OM) degradation is key to mobilizing the greenhouse gas CO2 from soils and freshwater ecosystems which can influence climate change. The reactivity of OM is highly variable. In fact, OM ...