Planet Formation –
Formation of the Earth –
The biogenic origin of the
early continents of the earth
“Evolution and Geological Planet Formation”
S. Eva Nessenius
2012
A new understanding of earth-formation on the basis of
hydrous accretion, a very early chemical evolution and
biomineralisation as fundamental processes is the key
to understand the early formation of planets from slowly
rotating gas-giants in protoplanetary discs.
CONTENTS
Abstract
1. Introduction
2. Hypothesis:
2.1. Stage 1: Hydrous accretion and chemical evolution
2.2. Stage 2: Biomineralisation as fundamental process
during the formation of the early earth
2.3. Stage 3: Great rise in oxygen enhancing mineralisation
2.4. Stage 4: Reef-building organisms and Cambrian radiation
2.5. Stage 5: Embryonic stages until the cool watery Carboniferous
2.6. Stage 6: A hot phase in Permian and the emerging of the moon
2.7. Stage 7: See transgressions and expansion of ocean-floors
2.8. Discussion: Stage 6 and 7.
3. Milankovic cycles and reversals of the earth’s magnetic field
4. Findings from the planet-embryo – morphological and genetic traces
5. Discussions:
5. 1. Morphological correspondences
5. 2. Growing Earth
5. 3. Emerging of the moon in Permian
5. 4. Hydrous accretion and biogenic formation of primordial continents
6. Conclusions
7. References
8. Picture credits
Entstehung der Erde, des Mondes und der Ozeane
Zitieren
Entstehung der Erde
