EGU Blogs

5022 search results for "6"

HS
Hydrological Sciences

Talking hydrology: an interview with Hjalmar Laudon on hydrological research at the Krycklan catchment

July 17, 2019
Talking hydrology: an interview with Hjalmar Laudon on hydrological research at the Krycklan catchment

For our second post of “Talking hydrology”, we interviewed Hjalmar Laudon, professor and chair of forest landscape biogeochemistry at SLU Umeå (Sweden). We talked about past and current research in the Krycklan catchment and the usefulness of long-term datasets.   1) You have been conducting hydrological research at the Krycklan catchment (North of Sweden) since 2002. How did you keep yoursel ...[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

#mineralmonday : lithiophilite

July 15, 2019
#mineralmonday : lithiophilite

What is it? Lithiophilite, LiMnPO4 What’s it made of? Lithium (Li), manganese (Mn), phosphorus (P) and oxygen (O). The PO4 at the end of the formula makes this a phosphate mineral (phosphorus + oxygen = phosphate). What’s it’s structure? The way the different atoms are arranged in lithiophilite is described as orthorhombic, which means the crystal is built of lots of tiny cuboid- ...[Read More]

GeoLog

Geosciences Column: How erupting African volcanoes impact the Amazon’s atmosphere

July 12, 2019
Geosciences Column: How erupting African volcanoes impact the Amazon’s atmosphere

When volcanoes erupt, they can release into the atmosphere a number of different gases initially stored in their magma, such as carbon dioxide, hydrogen sulfide, and sulfur dioxide. These kinds of gases can have a big influence on Earth’s atmosphere, even at distances hundreds to thousands of kilometres away. A team of researchers have found evidence that sulfur emissions from volcanic eruptions i ...[Read More]

Geology for Global Development

Careers in Geoscience-for-Development: Some Tips and Resources

July 12, 2019
Careers in Geoscience-for-Development: Some Tips and Resources

One of the most frequently asked questions put to me is ‘how does a geoscientist develop a career linked to international aid or sustainable development?’. Here are some thoughts, recently curated for the 2018 GfGD Annual Conference report, together with examples of how GfGD’s work helps to mobilise geoscientists to engage in sustainable development. Geoscience matters, is critical to progre ...[Read More]

TS
Tectonics and Structural Geology

Beyond tectonics: The present-day tides are the biggest they have been since the formation of Pangea

July 12, 2019
Beyond tectonics: The present-day tides are the biggest they have been since the formation of Pangea

“Beyond tectonics” is a blog series which aims to highlight the connections between tectonics and other aspects of the Earth system. In this iteration of the “Beyond tectonics” series we talk about how plate tectonics have affected the tides on Earth over geological timescales. We will talk about tectonics on the Earth since the formation of Pangea to the present day, and i ...[Read More]

CR
Cryospheric Sciences

An interview with… Marie Dumont

July 12, 2019
An interview with… Marie Dumont

This week, we are interviewing Dr Marie Dumont. At the European Geosciences Union (EGU) general assembly in 2019, Marie was awarded the Arne Richter Award for Outstanding Early Career Scientist. Marie is currently a research team leader and deputy scientific director for the Snow Research Centre (part of Centre National de Recherches Meteorologiques, Météo-France & Le Centre national de la Rec ...[Read More]

GD
Geodynamics

The Sassy Scientist – Hyde: Lithosphere Dynamics

July 12, 2019
The Sassy Scientist – Hyde: Lithosphere Dynamics

Every week, The Sassy Scientist answers a question on geodynamics, related topics, academic life, the universe or anything in between with a healthy dose of sarcasm. Do you have a question for The Sassy Scientist? Submit your question here. Senna asks: I’m torn between mantle dynamics and lithosphere dynamics as a research topic. Which shall I choose? Dear Senna, I don’t know what came over me whe ...[Read More]

SSP
Stratigraphy, Sedimentology and Palaeontology

Slimy Landscapes 2: This time it’s Precambrian

July 11, 2019
Slimy Landscapes 2: This time it’s Precambrian

Slime is important to the developments of Earth’s landscapes – I have already explored this in a previous post where I learnt how Extracellular Polymeric Substances (EPS), a fancy phrase for a slime produced by organisms, can bind sediments together and making them resistant to erosion. This has impacts on the development of landscapes, from the types of bedforms forming below flows, the rate at w ...[Read More]

GD
Geodynamics

Iron volcanism on metallic asteroids?

July 10, 2019
Metallic asteroid

This week, Francis Nimmo, professor in the Department of Earth and Planetary Sciences (University of California Santa Cruz), tells us about volcanism on metallic asteroids! Around and after the formation of the solar system (4.5 billion years ago onwards), volcanoes on some of the gigantic bodies of the asteroid belt might have erupted … iron. Explanations. One way in which we can learn abou ...[Read More]

CL
Climate: Past, Present & Future

Magnetic minerals: storytellers of environmental and climatic conditions

July 9, 2019
Magnetic minerals: storytellers of environmental and climatic conditions

Name of proxy Environmental Magnetism (also known as enviromagnetics) Type of record Environment and climate proxy Paleoenvironment Sedimentary environments (for the most part) Period of time investigated Present times to millions of years (depending on the preservation conditions) How does it work? Magnetism is a physical property that results from the behaviour of elementary particles in any sub ...[Read More]