NDLI: On the identification of magnetostratigraphic polarity zones

Content Provider	Springer Nature Link
Author	Man, O.
Copyright Year	2008
Abstract	Polarity zones of sedimentary sections reflect a pattern of alternating polarity of the geomagnetic field recorded by the remanent magnetization of rocks. Unfortunately, this pattern can have been modified by the variable sedimentation rate, which complicates the identification of polarity zones against the reference geomagnetic polarity time scale. To avoid this obstacle, the present paper suggests a transform applied to both the sequence of levels of polarity reversal horizons and the sequence of ages of polarity reversals before computing their cross-correlation. This transform usually reduces the impact of the variable sedimentation rate so that a sequence of more than eight polarity reversal horizons may be identified without biostratigraphic constraints. Numerical experiments involving random processes to simulate both the duration of polarity reversals and the sedimentation rate proved, however, that not all the parts of a hypothetical stratigraphic section spanning the past 165 Ma would be equally suitable for dating by magnetic polarity stratigraphy.A program performing both the compilation of polarity zones from the directions of the primary magnetization sampled along a section and subsequent identification of these polarity zones is made available online.
Starting Page	173
Ending Page	186
Page Count	14
File Format	PDF
ISSN	00393169
Journal	Studia Geophysica et Geodaetica
Volume Number	52
Issue Number	2
e-ISSN	15731626
Language	English
Publisher	Springer US
Publisher Date	2008-06-18
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	paleomagnetism geomagnetic polarity reversals magnetic polarity stratigraphy Meteorology/Climatology Structural Geology Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology Geophysics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Geomagnetic activity and the global temperature

Paleomagnetism of the Djebel Reouina Namurian Formation (Tindouf Basin, Algeria)

Ionospheric effetcs of an intense geomagnetic storm

Is the Fisher Distribution Additive?

Contributions to the Ring Current Energy During Geomagnetic Storms

Magnetic Anomalies on the Tree Trunks

The detection of common cycles in magnetic susceptibility observed in distant magnetostratigraphic sections

Geomagnetic Pc3 Pulsations During the Total Solar Eclipse on Aug 11, 1999

Comparison of Solar and Geomagnetic Activity Effects on the Northern Hemisphere Weather Changes

On the identification of magnetostratigraphic polarity zones

Similar Documents

Geomagnetic activity and the global temperature

Paleomagnetism of the Djebel Reouina Namurian Formation (Tindouf Basin, Algeria)

Ionospheric effetcs of an intense geomagnetic storm

Is the Fisher Distribution Additive?

Contributions to the Ring Current Energy During Geomagnetic Storms

Magnetic Anomalies on the Tree Trunks

The detection of common cycles in magnetic susceptibility observed in distant magnetostratigraphic sections

Geomagnetic Pc3 Pulsations During the Total Solar Eclipse on Aug 11, 1999

Comparison of Solar and Geomagnetic Activity Effects on the Northern Hemisphere Weather Changes

On the identification of magnetostratigraphic polarity zones