GD3.1 | Early Earth: Structure, Evolution, Chemistry and Life
EDI
Early Earth: Structure, Evolution, Chemistry and Life
Co-organized by BG7/CL1.1/GMPV10/TS8
Convener: Ria Fischer | Co-conveners: Peter Cawood, Jeroen van Hunen, Bing XiaECSECS, Desiree Roerdink
Orals
| Wed, 17 Apr, 08:30–12:30 (CEST), 14:00–15:45 (CEST)
 
Room -2.21
Posters on site
| Attendance Thu, 18 Apr, 16:15–18:00 (CEST) | Display Thu, 18 Apr, 14:00–18:00
 
Hall X2
Orals |
Wed, 08:30
Posters on site
Thu, 16:15
The first half of Earth’s history (Hadean to Paleoproterozoic) laid the foundations for the planet we know today. But how and why it differed and how and why it evolved remain enduring questions.
In this session, we encourage the presentation of new approaches that improve our understanding on the formation, structure, and evolution of the early Earth ranging from the mantle and lithosphere to the atmosphere, oceans and biosphere, and interactions between these reservoirs.
This session aims to bring together scientists from a large range of disciplines to provide an interdisciplinary and comprehensive overview of the field. This includes, but is not limited to, fields such as early mantle dynamics, the formation, evolution and destruction of the early crust and lithosphere, early surface environments and the evolution of the early biosphere, mineral deposits, and how possible tectonic regimes impacted across the early Earth system.

Orals: Wed, 17 Apr | Room -2.21

Chairpersons: Jeroen van Hunen, Ria Fischer
08:30–08:31
Part I - Hadean Earth and crust-mantle differentiation
EGU24-1479
|
solicited
|
Highlight
|
On-site presentation
Recipes for a Hadean Earth
Stephen J. Mojzsis and Anna Medvegy
EGU24-2870
|
On-site presentation
Water-induced mantle overturns and the origins of Archean cratons
Zhongqing Wu1
09:31–09:32
Part II - Chemical evolution of Archean crust and mantle
EGU24-18408
|
On-site presentation
Archean continental crust formed by melting mafic cumulates
Matthijs Smit et al.
10:02–10:15
Discussion
Coffee break
Chairpersons: Ria Fischer, Bing Xia
10:45–10:46
Part III - Archean athmosphere and biosphere
EGU24-3563
|
ECS
|
On-site presentation
The geological record of H2 production in the Archean
Renée Tamblyn and Jörg Hermann
11:36–11:37
Part IV - Habitability and climate
EGU24-19385
|
Highlight
|
On-site presentation
The conceptual model of the formation of Earth’s habitability
Yun Liu
EGU24-7106
|
ECS
|
Highlight
|
On-site presentation
Fresh water on Earth four billion years ago
Hamed Gamaleldien et al.
12:17–12:30
Discussion
Lunch break
Chairpersons: Jeroen van Hunen, Peter Cawood
14:00–14:01
Part V - Evolution of cratons
EGU24-4724
|
On-site presentation
The main stages of the Ukrainian Shield evolution and plate tectonics
Leonid Shumlyanskyy
15:31–15:45
2-minute poster introduction

Posters on site: Thu, 18 Apr, 16:15–18:00 | Hall X2

Display time: Thu, 18 Apr 14:00–Thu, 18 Apr 18:00
Chairpersons: Ria Fischer, Bing Xia
EGU24-12921
|
Highlight
|
On-site presentation
Earth’s early tectonic modes and implications for habitability
Peter Cawood and Priyadarshi Chowdhury