Magnetostratigraphy of ODP Site 177-1092 (Table 1)
Ocean Drilling Program (ODP) Site 1092 from the sub-Antarctic South Atlantic produced a clear magnetic stratigraphy for the Late Miocene [Evans et al., 2003, doi:10.1046/j.1365-246X.2003.01916.x]. Three short intervals of reverse polarity were identified within the long (~1 Myr) normal polarity subc...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2007
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.707209 https://doi.org/10.1594/PANGAEA.707209 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.707209 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.707209 2024-09-15T17:40:23+00:00 Magnetostratigraphy of ODP Site 177-1092 (Table 1) Evans, Helen F Westerhold, Thomas Paulsen, Harald Channell, James E T LATITUDE: -46.411000 * LONGITUDE: 7.079000 * DATE/TIME START: 1998-01-07T23:59:00 * DATE/TIME END: 1998-01-07T23:59:00 * MINIMUM DEPTH, sediment/rock: 105.13 m * MAXIMUM DEPTH, sediment/rock: 159.03 m 2007 text/tab-separated-values, 58 data points https://doi.pangaea.de/10.1594/PANGAEA.707209 https://doi.org/10.1594/PANGAEA.707209 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.707209 https://doi.org/10.1594/PANGAEA.707209 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Evans, Helen F; Westerhold, Thomas; Paulsen, Harald; Channell, James E T (2007): Astronomical ages for Miocene polarity chrons C4Ar-C5r (9.3-11.2 Ma), and for three excursion chrons within C5n.2n. Earth and Planetary Science Letters, 256(3-4), 455-465, https://doi.org/10.1016/j.epsl.2007.02.001 177-1092 Age error Age model Chronozone COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Standard deviation dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.70720910.1016/j.epsl.2007.02.001 2024-07-24T02:31:30Z Ocean Drilling Program (ODP) Site 1092 from the sub-Antarctic South Atlantic produced a clear magnetic stratigraphy for the Late Miocene [Evans et al., 2003, doi:10.1046/j.1365-246X.2003.01916.x]. Three short intervals of reverse polarity were identified within the long (~1 Myr) normal polarity subchron C5n.2n. These excursion chrons were tentatively correlated to the three "cryptochrons" identified within subchron C5n.2n from NE Pacific marine magnetic anomaly data. New oxygen isotope data from ODP Site 1092 have allowed astronomical calibration of eight polarity chron boundaries in the interval between C4Ar.1n and C5r.1n (9.3-11.2 Ma) as well as calibration of the three excursion chrons identified within C5n.2n. The new polarity chron ages in the C4Ar.1n-C5r.1n interval differ from a current (2004) timescale by up to 48 kyr. The astrochronology yields durations in the 3-4 kyr range for the three excursion chrons in C5n.2n. The relative paleointensity record from Site 1092, and hence the three excursion chrons, can be correlated to the deep-tow magnetic anomaly record from 19°S on the East Pacific Rise (EPR). Based on published correlation of the EPR deep-tow record with the sea-surface magnetic anomaly stack from the NE Pacific, the three excursion chrons do not correspond to the "cryptochrons" recognized in the NE Pacific stack. Dataset Antarc* Antarctic South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(7.079000,7.079000,-46.411000,-46.411000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
177-1092 Age error Age model Chronozone COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Standard deviation |
spellingShingle |
177-1092 Age error Age model Chronozone COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Standard deviation Evans, Helen F Westerhold, Thomas Paulsen, Harald Channell, James E T Magnetostratigraphy of ODP Site 177-1092 (Table 1) |
topic_facet |
177-1092 Age error Age model Chronozone COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Standard deviation |
description |
Ocean Drilling Program (ODP) Site 1092 from the sub-Antarctic South Atlantic produced a clear magnetic stratigraphy for the Late Miocene [Evans et al., 2003, doi:10.1046/j.1365-246X.2003.01916.x]. Three short intervals of reverse polarity were identified within the long (~1 Myr) normal polarity subchron C5n.2n. These excursion chrons were tentatively correlated to the three "cryptochrons" identified within subchron C5n.2n from NE Pacific marine magnetic anomaly data. New oxygen isotope data from ODP Site 1092 have allowed astronomical calibration of eight polarity chron boundaries in the interval between C4Ar.1n and C5r.1n (9.3-11.2 Ma) as well as calibration of the three excursion chrons identified within C5n.2n. The new polarity chron ages in the C4Ar.1n-C5r.1n interval differ from a current (2004) timescale by up to 48 kyr. The astrochronology yields durations in the 3-4 kyr range for the three excursion chrons in C5n.2n. The relative paleointensity record from Site 1092, and hence the three excursion chrons, can be correlated to the deep-tow magnetic anomaly record from 19°S on the East Pacific Rise (EPR). Based on published correlation of the EPR deep-tow record with the sea-surface magnetic anomaly stack from the NE Pacific, the three excursion chrons do not correspond to the "cryptochrons" recognized in the NE Pacific stack. |
format |
Dataset |
author |
Evans, Helen F Westerhold, Thomas Paulsen, Harald Channell, James E T |
author_facet |
Evans, Helen F Westerhold, Thomas Paulsen, Harald Channell, James E T |
author_sort |
Evans, Helen F |
title |
Magnetostratigraphy of ODP Site 177-1092 (Table 1) |
title_short |
Magnetostratigraphy of ODP Site 177-1092 (Table 1) |
title_full |
Magnetostratigraphy of ODP Site 177-1092 (Table 1) |
title_fullStr |
Magnetostratigraphy of ODP Site 177-1092 (Table 1) |
title_full_unstemmed |
Magnetostratigraphy of ODP Site 177-1092 (Table 1) |
title_sort |
magnetostratigraphy of odp site 177-1092 (table 1) |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.707209 https://doi.org/10.1594/PANGAEA.707209 |
op_coverage |
LATITUDE: -46.411000 * LONGITUDE: 7.079000 * DATE/TIME START: 1998-01-07T23:59:00 * DATE/TIME END: 1998-01-07T23:59:00 * MINIMUM DEPTH, sediment/rock: 105.13 m * MAXIMUM DEPTH, sediment/rock: 159.03 m |
long_lat |
ENVELOPE(7.079000,7.079000,-46.411000,-46.411000) |
genre |
Antarc* Antarctic South Atlantic Ocean |
genre_facet |
Antarc* Antarctic South Atlantic Ocean |
op_source |
Supplement to: Evans, Helen F; Westerhold, Thomas; Paulsen, Harald; Channell, James E T (2007): Astronomical ages for Miocene polarity chrons C4Ar-C5r (9.3-11.2 Ma), and for three excursion chrons within C5n.2n. Earth and Planetary Science Letters, 256(3-4), 455-465, https://doi.org/10.1016/j.epsl.2007.02.001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.707209 https://doi.org/10.1594/PANGAEA.707209 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.70720910.1016/j.epsl.2007.02.001 |
_version_ |
1810486408262975488 |