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Data Publication

Downcore variations of rock magnetic parameters for the sedimentary sequence of VER98-1-14

Demory, Francois | Oberhänsli, Hedi | Nowaczyk, Norbert | Gottschalk, Matthias | Wirth, Richard | Naumann, Rudolf

Deutsches GeoForschungsZentrum GFZ

(2006)

Descriptions

Downcore variations of rock magnetic parameters and simplified lithological description for the sedimentary sequence VER 98-1-14. Here, MIS are denoted by numbers in the lithological column. The black squares filled intervals mark occurrences of greigite characterised by a high magnetic susceptibility (κLF) in parts, with a low coercive mineral dominating the magnetic signal (S-ratio close to 1), a high SIRM/κLF, a strong loss of ARM intensity between the demagnetisations steps 50 and 65 mT and finally a deviation of the inclination of ARM. The dark grey intervals mark occurrences of magnetite dissolution, with a low S-ratio resulting from relative higher hematite content in the ferromagnetic components. The assignment of greigite and dissolved magnetite is based on subsequent interpretation. Magnetic susceptibility (κLF) vs. S-ratio for the sedimentary sequence VER 98-1-14 showing S-ratio gathered around 0.95 in glacial sediments and scattered from 0.7 to 1 in interglac

Keywords


Originally assigned keywords
Vereshchagin 98 Expedition
R/V Vereshchagin
(ARM50-ARM65)/ARM
calculation
inclination (ARM)
Magnetic susceptibility
magnetic susceptibility (other)
s-ratio
SIRM/kLF
stepwise measurement
Kappabridge KLY-3S

Corresponding MSL vocabulary keywords
magnetic susceptibility

MSL enriched keywords
Measured property
magnetic susceptibility
minerals
sulfide minerals
greigite
oxide mineral
hematite
magnetite

MSL enriched sub domains i

paleomagnetism


Source publisher

Deutsches GeoForschungsZentrum GFZ


DOI

10.1594/gfz.sddb.1023


Creators

Demory, Francois

Oberhänsli, Hedi

Nowaczyk, Norbert

Gottschalk, Matthias

Wirth, Richard

Naumann, Rudolf


References

10.1016/j.gloplacha.2004.11.010


Citation

Demory, F., Oberhänsli, H., Nowaczyk, N., Gottschalk, M., Wirth, R., & Naumann, R. (2006). Downcore variations of rock magnetic parameters for the sedimentary sequence of VER98-1-14 [Data set]. Deutsches GeoForschungsZentrum GFZ. https://doi.org/10.1594/GFZ.SDDB.1023


Dates

Issued:

2006-09-15


Language

en