Universal Model of the Density of Deep Silicate Melts
Glass2Melt aims to measure the density of silicate melts using advanced laser spectroscopy to develop a universal density model, enhancing our understanding of Earth's evolution and magma dynamics.
Projectdetails
Introduction
The starting conditions for the Earth’s evolution were set by gravitational differentiation in the solidifying magma ocean. Yet, a thorough understanding of the magma ocean dynamics and thus of the primordial Earth is lacking. One key unknown is the density of silicate melts at high pressure, which determines whether the crystallizing phases rise or sink.
Importance of Magma Density
Magma density also governs the storage, spatial distribution, and migration of melts in the present-day Earth. Densities of silicate liquids at mantle pressures and temperatures are extremely difficult to measure because of the tiny sample size, melt chemical reactivity, and its lack of crystalline structure.
Challenges in Measurement
The use of glasses as proxies of melts lifts some but not all of these challenges. Albeit needed for a holistic picture of planet Earth, no density systematics exists for glasses or melts across the pressure range of the entire mantle.
Project Overview
Glass2Melt will employ and further a novel class of fast white laser spectroscopy methods to measure the density of multicomponent synthetic silicate glasses and melts at mantle pressure-temperature conditions. Our approach is ground-breaking because it allows us to thoroughly explore a large compositional space and determine the density of any deep silicate melt.
Expected Outcomes
Our results will:
- Parametrize a universal silicate melt density model applicable to the entire mantle.
- Quantify solid-liquid buoyancy throughout the whole crystallizing magma ocean.
Broader Impact
Glass2Melt will have a broad, lasting impact on our understanding of the Earth’s interior and its evolution over geologic time. The new density model will provide critical input for future numerical simulations assessing fundamental questions about:
- The solidification of the primordial magma ocean.
- The initiation and development of physical and chemical heterogeneity in the mantle.
It will also be crucial for deciphering deep low seismic velocity structures and modeling magma dynamics in the present-day Earth.
Financiële details & Tijdlijn
Financiële details
Subsidiebedrag | € 1.998.856 |
Totale projectbegroting | € 1.998.856 |
Tijdlijn
Startdatum | 1-6-2024 |
Einddatum | 31-5-2029 |
Subsidiejaar | 2024 |
Partners & Locaties
Projectpartners
- HELMHOLTZ ZENTRUM POTSDAM DEUTSCHES GEOFORSCHUNGSZENTRUM GFZpenvoerder
Land(en)
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Quantifying the formation and evolution of the Archaean lithospheric mantle
LITHO3 aims to uncover the depth of Archean mantle melting and the origins of silica enrichment in cratonic lithosphere through advanced analysis of orthopyroxenes and experimental modeling.
New Horizons in Glass Structure Prediction and Mechanics
NewGLASS aims to revolutionize glass design by integrating computational methods and machine learning to create novel glass compositions with enhanced fracture resistance for diverse applications.
Understanding the melting dynamics in turbulent flows
This project aims to enhance predictions of melting and dissolution rates in turbulent flows through combined lab experiments and numerical simulations, addressing critical climate change impacts.
Formation and Evolution of the Earth with Volatile Elements
This project aims to quantify volatile elements in Earth's core and bulk silicate Earth through experiments, enhancing models of planetary evolution and atmospheric development.
Quantifying and controlling the mechanisms responsible for mineral behaviour: Dissolution, adsorption and crystal growth
The project aims to develop new instruments to understand and control organic molecule interactions with silicate minerals, enhancing CO2 mineralization and addressing climate change challenges.
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