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- Geomagnetic_reversal abstract "A geomagnetic reversal is a change in Earth's magnetic field such that the positions of magnetic north and magnetic south are interchanged. The Earth's field has alternated between periods of normal polarity, in which the direction of the field was the same as the present direction, and reverse polarity, in which the field was the opposite. These periods are called chrons. The time spans of chrons are randomly distributed with most being between 0.1 and 1 million years[citation needed] with an average of 450,000 years. Most reversals are estimated to take between 1,000 and 10,000 years. The latest one, the Brunhes–Matuyama reversal, occurred 780,000 years ago. A brief complete reversal, known as the Laschamp event, occurred only 41,000 years ago during the last glacial period. That reversal lasted only about 440 years with the actual change of polarity lasting around 250 years. During this change the strength of the magnetic field dropped to 5% of its present strength. Brief disruptions that do not result in reversal are called geomagnetic excursions.".
- Geomagnetic_reversal thumbnail Geomagnetic_polarity_late_Cenozoic.svg?width=300.
- Geomagnetic_reversal wikiPageExternalLink 1989PEPI...56..133O.
- Geomagnetic_reversal wikiPageExternalLink of2007-1047ea030.pdf.
- Geomagnetic_reversal wikiPageExternalLink hoffman.html.
- Geomagnetic_reversal wikiPageExternalLink 9143913?story_id=9143913.
- Geomagnetic_reversal wikiPageExternalLink dn9148-ships-logs-give-clues-to-earths-magnetic-decline.html.
- Geomagnetic_reversal wikiPageExternalLink frog-magnetic-field.asp.
- Geomagnetic_reversal wikiPageID "2203131".
- Geomagnetic_reversal wikiPageRevisionID "606772223".
- Geomagnetic_reversal hasPhotoCollection Geomagnetic_reversal.
- Geomagnetic_reversal subject Category:Earth.
- Geomagnetic_reversal subject Category:Geomagnetic_reversal.
- Geomagnetic_reversal subject Category:Geophysics.
- Geomagnetic_reversal subject Category:Paleomagnetism.
- Geomagnetic_reversal comment "A geomagnetic reversal is a change in Earth's magnetic field such that the positions of magnetic north and magnetic south are interchanged. The Earth's field has alternated between periods of normal polarity, in which the direction of the field was the same as the present direction, and reverse polarity, in which the field was the opposite. These periods are called chrons.".
- Geomagnetic_reversal label "Geomagnetic reversal".
- Geomagnetic_reversal label "Inversion du champ magnétique terrestre".
- Geomagnetic_reversal label "Inversão geomagnética".
- Geomagnetic_reversal label "Omkering van het aardmagnetisch veld".
- Geomagnetic_reversal label "Przebiegunowanie Ziemi".
- Geomagnetic_reversal label "Reversión geomagnética".
- Geomagnetic_reversal label "Инверсии магнитного поля Земли".
- Geomagnetic_reversal label "地磁気逆転".
- Geomagnetic_reversal label "地磁逆轉".
- Geomagnetic_reversal sameAs Reversión_geomagnética.
- Geomagnetic_reversal sameAs Inversion_du_champ_magnétique_terrestre.
- Geomagnetic_reversal sameAs 地磁気逆転.
- Geomagnetic_reversal sameAs 지구자기역전.
- Geomagnetic_reversal sameAs Omkering_van_het_aardmagnetisch_veld.
- Geomagnetic_reversal sameAs Przebiegunowanie_Ziemi.
- Geomagnetic_reversal sameAs Inversão_geomagnética.
- Geomagnetic_reversal sameAs m.06vn36.
- Geomagnetic_reversal sameAs Q1059740.
- Geomagnetic_reversal sameAs Q1059740.
- Geomagnetic_reversal wasDerivedFrom Geomagnetic_reversal?oldid=606772223.
- Geomagnetic_reversal depiction Geomagnetic_polarity_late_Cenozoic.svg.
- Geomagnetic_reversal isPrimaryTopicOf Geomagnetic_reversal.
