- Natural remanent magnetization preserved in rock sequences. During rock deposition magnetic minerals are aligned according to the direction and polarity of the earth’s contemporary magnetic field. After movement of the magnetic poles, or periodic reversals of polarity, the remanent magnetization is preserved in the rocks and may be measured to aid identification of stratigraphical units and to assess their relative ages .
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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Paleomagnetism — is the study of the record of the Earth s magnetic field preserved in various magnetic minerals through time. The study of paleomagnetism has demonstrated that the Earth s magnetic field varies substantially in both orientation and intensity… … Wikipedia
paleomagnetism — paleomagnetísm s. n. Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic PALEOMAGNETÍSM s.n. Caracteristicile câmpului magnetic terestru din trecutul geologic. [< fr. paléomagnétisme]. Trimis de LauraGellner, 05.07.2005. Sursa: DN … … Dicționar Român
paleomagnetism — [pā΄lē ō mag′nə tiz΄əm] n. 1. the alignment of iron and nickel grains in rock with the earth s magnetic poles, fixed at the time of that rock s formation 2. the study of this alignment, specif. as it relates to the shifting of the earth s… … English World dictionary
paleomagnetism — noun Date: 1854 1. the intensity and direction of residual magnetization in ancient rocks 2. a science that deals with paleomagnetism • paleomagnetic adjective • paleomagnetically adverb • paleomagnetist noun … New Collegiate Dictionary
paleomagnetism — paleomagnetic /pay lee oh mag net ik/ or, esp. Brit., /pal ee /, adj. /pay lee oh mag ni tiz euhm/ or, esp. Brit., /pal ee /, n. Geol. magnetic polarization acquired by the minerals in a rock at the time the rock was deposited or solidified. Cf.… … Universalium
paleomagnetism — noun The study of the strength and direction of the Earths magnetic field as it has changed over geologic time See Also: paleomagnetic, paleomagnetics … Wiktionary
paleomagnetism — pa·leo·magnetism … English syllables
paleomagnetism — pa•le•o•mag•net•ism [[t]ˌpeɪ li oʊˈmæg nɪˌtɪz əm[/t]] esp. brit. [[t]ˌpæl i [/t]] n. gel magnetic polarization acquired by the minerals in a rock at the time the rock was deposited or solidified • Etymology: 1850–55 … From formal English to slang
paleomagnetism — … Useful english dictionary
Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals. The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… … Wikipedia