SUMMARY Precambrian palaeointensity measurements provide fundamental constraints on the evolution of the deep Earth. Core evolution models predict trends in dipole moment on billion-year timescales that can be tested by palaeomagnetic records. Here, we report new palaeointensity results from the recently identified ∼2.62 Ga Yandinilling dyke swarm of the Yilgarn Craton, Western Australia, and consider them alongside published measurements spanning 500 Myr across the late Archaean to earliest Proterozoic. Rock magnetic and scanning electron microscopy analysis confirm that the magnetic mineralogy is fine-grained magnetite, appearing mostly as exsolved lamellae with ilmenite. Six sites produced acceptable palaeointensity estima...
The paleomagnetic record is central to our understanding of the history of the Earth. The orientatio...
金沢大学理工研究域地球社会基盤学系Paleomagnetic and rock magnetic analyses of ̃3445-million-year-old dacite conglomer...
Long-term variations of the geomagnetic field, observed in the palaeomagnetic record, have the poten...
The Earth’s inner core grows by the freezing of liquid iron at its surface. The point in history at ...
AbstractThe state of the geomagnetic field throughout the Precambrian era is largely unknown. Approx...
The Mesozoic Dipole Low (MDL) is a period, covering at least ∼80 My, of low dipole moment that ended...
Determining the age of the geomagnetic field is of paramount importance for understanding the evolut...
Long-term variations in geomagnetic field behaviour can contain essential information on deep Earth ...
© 2015 Elsevier B.V. Absolute geomagnetic paleointensity measurements were conducted on samples from...
AbstractUnderstanding the evolution of Earth's magnetic field can provide insights into core process...
International audienceAlthough it is known that the geodynamo has been operating for at least 3.2 Ga...
Earth's magnetic environment is dominated by its mainly dipolar internally generated magnetic field....
Paleointensity data can yield insight on the state of the geodynamo, providing constraints on deep E...
Data on the evolution of Earth\u27s magnetic field intensity are important for understanding the geo...
The geomagnetic field is predominantly dipolar today, and high-fidelity paleomagnetic mean direction...
The paleomagnetic record is central to our understanding of the history of the Earth. The orientatio...
金沢大学理工研究域地球社会基盤学系Paleomagnetic and rock magnetic analyses of ̃3445-million-year-old dacite conglomer...
Long-term variations of the geomagnetic field, observed in the palaeomagnetic record, have the poten...
The Earth’s inner core grows by the freezing of liquid iron at its surface. The point in history at ...
AbstractThe state of the geomagnetic field throughout the Precambrian era is largely unknown. Approx...
The Mesozoic Dipole Low (MDL) is a period, covering at least ∼80 My, of low dipole moment that ended...
Determining the age of the geomagnetic field is of paramount importance for understanding the evolut...
Long-term variations in geomagnetic field behaviour can contain essential information on deep Earth ...
© 2015 Elsevier B.V. Absolute geomagnetic paleointensity measurements were conducted on samples from...
AbstractUnderstanding the evolution of Earth's magnetic field can provide insights into core process...
International audienceAlthough it is known that the geodynamo has been operating for at least 3.2 Ga...
Earth's magnetic environment is dominated by its mainly dipolar internally generated magnetic field....
Paleointensity data can yield insight on the state of the geodynamo, providing constraints on deep E...
Data on the evolution of Earth\u27s magnetic field intensity are important for understanding the geo...
The geomagnetic field is predominantly dipolar today, and high-fidelity paleomagnetic mean direction...
The paleomagnetic record is central to our understanding of the history of the Earth. The orientatio...
金沢大学理工研究域地球社会基盤学系Paleomagnetic and rock magnetic analyses of ̃3445-million-year-old dacite conglomer...
Long-term variations of the geomagnetic field, observed in the palaeomagnetic record, have the poten...