Paleointensity of various DSDP sites (Table 3)
The existing database for paleointensity estimates of the ancient geomagnetic field contains more than 1500 data points collected through decades of effort. Despite the huge amount of work put into obtaining these data, there remains a strong bias in the age and global distribution of the data towar...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.723119 2023-05-15T17:37:02+02:00 Paleointensity of various DSDP sites (Table 3) Juarez, M T Tauxe, Lisa MEDIAN LATITUDE: 24.896200 * MEDIAN LONGITUDE: -86.837171 * SOUTH-BOUND LATITUDE: 9.001700 * WEST-BOUND LONGITUDE: -108.978000 * NORTH-BOUND LATITUDE: 36.878700 * EAST-BOUND LONGITUDE: -33.641000 * DATE/TIME START: 1974-06-17T00:00:00 * DATE/TIME END: 1979-02-12T00:00:00 * MINIMUM DEPTH, sediment/rock: 118.0 m * MAXIMUM DEPTH, sediment/rock: 712.0 m 2000-06-29 text/tab-separated-values, 352 data points https://doi.pangaea.de/10.1594/PANGAEA.723119 https://doi.org/10.1594/PANGAEA.723119 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.723119 https://doi.org/10.1594/PANGAEA.723119 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Juarez, M T; Tauxe, Lisa (2000): The intensity of the time-averaged geomagnetic field: the last 5 Myr. Earth and Planetary Science Letters, 175(3-4), 169-180, https://doi.org/10.1016/S0012-821X(99)00306-4 37-332A 37-332B 54-420 64-474A 65-482D 65-483 65-483B Angle Best Fit Temp T0 Deep Sea Drilling Project DEPTH sediment/rock Difference DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Factor Glomar Challenger Latitude of event Leg37 Leg54 Leg64 Leg65 Longitude of event Magnetic field Z-component Maximum angular deviation North Atlantic/VALLEY North Pacific/Gulf of California/BASIN North Pacific/Gulf of California/CONT RISE North Pacific/SEDIMENT POND Number Sample code/label Temperature technical Virtual dipole moment Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.723119 https://doi.org/10.1016/S0012-821X(99)00306-4 2023-01-20T08:48:54Z The existing database for paleointensity estimates of the ancient geomagnetic field contains more than 1500 data points collected through decades of effort. Despite the huge amount of work put into obtaining these data, there remains a strong bias in the age and global distribution of the data toward very young results from a few locations. Also, few of the data meet strict criteria for reliability and most are of unknown quality. In order to improve the age and spatial distribution of the paleointensity database, we have carried out paleointensity experiments on submarine basaltic glasses from a number of DSDP sites. Of particular interest are the sites that provide paleointensity data spanning the time period 0.3-5 Ma, a time of relatively few high quality published data points. Our new data are concordant with contemporaneous data from the published literature that meet minimum acceptance criteria, and the combined data set yields an average dipole moment of 5.49 +/- 2.36*10**22 Am**2. This average value is comparable to the average paleofield for the period 5-160 Ma (4.2 +/- 2.3*10**22 Am**2) (Juarez et al., 1998, doi:10.1038/29746) and is substantially less than the value of approximately 8*10**22 Am**2 often quoted for the last 5 Myr (e.g. McFadden and McElhinny (1982) J. Geomagn. Geoelectr. 34, 163-189; Goguitchaichvili et al., 1999, doi:10.1016/S0012-821X(99)00010-2). Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(-108.978000,-33.641000,36.878700,9.001700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
37-332A 37-332B 54-420 64-474A 65-482D 65-483 65-483B Angle Best Fit Temp T0 Deep Sea Drilling Project DEPTH sediment/rock Difference DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Factor Glomar Challenger Latitude of event Leg37 Leg54 Leg64 Leg65 Longitude of event Magnetic field Z-component Maximum angular deviation North Atlantic/VALLEY North Pacific/Gulf of California/BASIN North Pacific/Gulf of California/CONT RISE North Pacific/SEDIMENT POND Number Sample code/label Temperature technical Virtual dipole moment |
spellingShingle |
37-332A 37-332B 54-420 64-474A 65-482D 65-483 65-483B Angle Best Fit Temp T0 Deep Sea Drilling Project DEPTH sediment/rock Difference DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Factor Glomar Challenger Latitude of event Leg37 Leg54 Leg64 Leg65 Longitude of event Magnetic field Z-component Maximum angular deviation North Atlantic/VALLEY North Pacific/Gulf of California/BASIN North Pacific/Gulf of California/CONT RISE North Pacific/SEDIMENT POND Number Sample code/label Temperature technical Virtual dipole moment Juarez, M T Tauxe, Lisa Paleointensity of various DSDP sites (Table 3) |
topic_facet |
37-332A 37-332B 54-420 64-474A 65-482D 65-483 65-483B Angle Best Fit Temp T0 Deep Sea Drilling Project DEPTH sediment/rock Difference DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Factor Glomar Challenger Latitude of event Leg37 Leg54 Leg64 Leg65 Longitude of event Magnetic field Z-component Maximum angular deviation North Atlantic/VALLEY North Pacific/Gulf of California/BASIN North Pacific/Gulf of California/CONT RISE North Pacific/SEDIMENT POND Number Sample code/label Temperature technical Virtual dipole moment |
description |
The existing database for paleointensity estimates of the ancient geomagnetic field contains more than 1500 data points collected through decades of effort. Despite the huge amount of work put into obtaining these data, there remains a strong bias in the age and global distribution of the data toward very young results from a few locations. Also, few of the data meet strict criteria for reliability and most are of unknown quality. In order to improve the age and spatial distribution of the paleointensity database, we have carried out paleointensity experiments on submarine basaltic glasses from a number of DSDP sites. Of particular interest are the sites that provide paleointensity data spanning the time period 0.3-5 Ma, a time of relatively few high quality published data points. Our new data are concordant with contemporaneous data from the published literature that meet minimum acceptance criteria, and the combined data set yields an average dipole moment of 5.49 +/- 2.36*10**22 Am**2. This average value is comparable to the average paleofield for the period 5-160 Ma (4.2 +/- 2.3*10**22 Am**2) (Juarez et al., 1998, doi:10.1038/29746) and is substantially less than the value of approximately 8*10**22 Am**2 often quoted for the last 5 Myr (e.g. McFadden and McElhinny (1982) J. Geomagn. Geoelectr. 34, 163-189; Goguitchaichvili et al., 1999, doi:10.1016/S0012-821X(99)00010-2). |
format |
Dataset |
author |
Juarez, M T Tauxe, Lisa |
author_facet |
Juarez, M T Tauxe, Lisa |
author_sort |
Juarez, M T |
title |
Paleointensity of various DSDP sites (Table 3) |
title_short |
Paleointensity of various DSDP sites (Table 3) |
title_full |
Paleointensity of various DSDP sites (Table 3) |
title_fullStr |
Paleointensity of various DSDP sites (Table 3) |
title_full_unstemmed |
Paleointensity of various DSDP sites (Table 3) |
title_sort |
paleointensity of various dsdp sites (table 3) |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.723119 https://doi.org/10.1594/PANGAEA.723119 |
op_coverage |
MEDIAN LATITUDE: 24.896200 * MEDIAN LONGITUDE: -86.837171 * SOUTH-BOUND LATITUDE: 9.001700 * WEST-BOUND LONGITUDE: -108.978000 * NORTH-BOUND LATITUDE: 36.878700 * EAST-BOUND LONGITUDE: -33.641000 * DATE/TIME START: 1974-06-17T00:00:00 * DATE/TIME END: 1979-02-12T00:00:00 * MINIMUM DEPTH, sediment/rock: 118.0 m * MAXIMUM DEPTH, sediment/rock: 712.0 m |
long_lat |
ENVELOPE(-108.978000,-33.641000,36.878700,9.001700) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Juarez, M T; Tauxe, Lisa (2000): The intensity of the time-averaged geomagnetic field: the last 5 Myr. Earth and Planetary Science Letters, 175(3-4), 169-180, https://doi.org/10.1016/S0012-821X(99)00306-4 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.723119 https://doi.org/10.1594/PANGAEA.723119 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.723119 https://doi.org/10.1016/S0012-821X(99)00306-4 |
_version_ |
1766136739801333760 |