BG
Biogeosciences

biogeosciences

Dating mineral phases in geological remnants of early life

Dating mineral phases in geological remnants of early life

This is a solicited blogpost written by Sebastian Viehmann. The Mesoarchean Strelley Pool Formation in the Pilbara Craton (Western Australia) hosts one of the oldest geological remnants of life on Earth. These silicified stromatolitic carbonates show diverse morphologies and formed on a shallow marine carbonate platform 3.35 billion years ago (Ga; Figures 1 and 2). After a long-standing debate abo ...[Read More]

Phosphorus-cycle perturbations and environmental disturbances 380–360 million years ago

Phosphorus-cycle perturbations and environmental disturbances 380–360 million years ago

This is a solicited blogpost written by Lawrence Percival, who will also present his work on the Oceanic Anoxic Event 2 as part of session SSP2.1 of the upcoming EGU GA.   The increasing concern regarding 21st climate change and environmental disturbance has led to a renewed focus on similar episodes of global crisis through Earth’s history. During the Late Devonian Period, 380–360 million ye ...[Read More]

EGU2020 BG Sessions in the spotlight: Stable isotopes

EGU2020 BG Sessions in the spotlight: Stable isotopes

The deadline for EGU 2020 abstract submissions is coming closer – today we highlight sessions focused on the application of (stable) isotope tracers to questions in biogeoscience.   First, for those of you who use light stable isotopes, there is session BG2.8 Application of Stable Isotopes in Biogeosciences, co-organized by HS13, co-sponsored by EAG and convened by Michael E. Böttcher, ...[Read More]

EGU2020 BG Sessions in the spotlight: Global P and N cycles

EGU2020 BG Sessions in the spotlight: Global P and N cycles

The EGU 2020 abstract submissions are open until January 15. Here, we’ll highlight the planned Biogeoscience (BG) sessions. Stay tuned and find the session for your abstract!   Today’s focus is on the more general BG-sessions for those of you dealing with the important nutrient cycles. First, BG1.2: Nitrogen cycling in terrestrial and aquatic ecosystems: microbiological processes, gas fluxes, ...[Read More]

EGU2020 BG Sessions in the spotlight: Extreme environments

EGU2020 BG Sessions in the spotlight: Extreme environments

Less than one month left for the EGU 2020 abstract deadline on January 15. Today we highlight two sessions of BG 5 – Geomicrobiology, extreme environments on Earth and planetary analogues.   First, BG5.1: Biology and Geology of extreme environments on Earth and planetary analogs. This session is convened by Monica Pondrelli, Jessica Flahaut, Frances Westall, Helge Niemann and Barbara Cavalazz ...[Read More]

EGU2020 BG Sessions in the spotlight: Methane

EGU2020 BG Sessions in the spotlight: Methane

The EGU 2020 abstract submissions are open until January 15. Here, we’ll highlight the planned biogeosciences sessions. Stay tuned and find the session for your abstract! Today’s focus is on Methane. Methane, a potent greenhouse gas, is steadily increasing in concentration in the atmosphere, prompting fears that it could scupper our chances to meet the global climate targets. But given its relativ ...[Read More]

EGU2020 BG Sessions in the spotlight: Biogeosciences’ past achievements and current challenges

EGU2020 BG Sessions in the spotlight: Biogeosciences’ past achievements and current challenges

The EGU 2020 abstract submissions are open until January 15. Today we highlight two of the more general BG-sessions for those of you working with big questions linking biology and geology, current and past.   First, BG1.13: Past achievement and future challenges of Biogeosciences. This session is convened by Giuliana Panieri, Ariel D. Anbar, Hiroshi Kitazato and Kurt Konhauser. The convenors ...[Read More]

Welcome back to EGU’s Biogeosciences Division Blog!

Welcome back to EGU’s Biogeosciences Division Blog!

After a brief hiatus, the blog will be restarting under the joint editorship of Hana Jurikova, Alexandra Rodler, and Joshua Dean.   Hana is a is a postdoctoral researcher at the GFZ German Research Centre for Geosciences – Helmholtz Centre Potsdam in Germany. Her research primarily involves the application and development of novel isotopic techniques to gain insights into climatic and environ ...[Read More]

Investigation of methane emissions in marine systems

Investigation of methane emissions in marine systems

Ever wondered how we can measure methane emssions from the seafloor ? And ever wanted to steer a mini submarine remotely operating vehicle (ROV)? Well here´s your chance! Have look at this blog post on analyzing methane emissions using ROVs and you´re ready to embark!    The goal is to determine when the gas leak started and how the fluid flow systems work. With our research, we can contribut ...[Read More]

The Panamanian Isthmus is not entirely guilty after all!

The Panamanian Isthmus is not entirely guilty after all!

  “According to new research, the land bridge connecting Central and South America rose more than 10 million years earlier than originally thought”   Traditionally, closure of the Panama Isthmus has been deemed responsible for the co-occurrence of two major events: The large Pleistocene glaciations and the Great American Biotic Interchange (GABI). Existing evidence indicating a ca ...[Read More]