Some rockmagnetic parameters for natural goethite, pyrrhotite and fine-grained hematite

M.J. Dekkers

Some rockmagnetic parameters for natural goethite, pyrrhotite and fine-grained hematite

Research output: Thesis › Doctoral thesis 1 (Research UU / Graduation UU)

Abstract

The increasing importance of sediments for paleomagnetic research prompted a study of rockmagnetic parameters of natural goethite, pyrrhotite and hematite. Grain-size dependent behaviour of such parameters is poorly known for goethite and pyrrhotite as well as for fine-grained hematite. Data of hematite indicate a complex rockmagnetic behaviour. Existing data seem to be contradictory in many aspects. The rockmagnetic parameters reported in the present thesis for the natural goethite and pyrrhotite samples comprise twelve grain-size fractions from 250 micrometer down to <5 micrometer. For the natural hematite sample, which has a low-temperature origin, the <5 micrometer fraction was divided into six grain-size fractions down to <0.25 micrometer.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	Utrecht University
Supervisors/Advisors	Zijderveld, J.D.A., Primary supervisor, External person Schuiling, R.D., Primary supervisor, External person
Award date	27 Jan 1988
Place of Publication	Utrecht
Publisher	Faculteit Aardwetenschappen
Publication status	Published - 27 Jan 1988

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@phdthesis{ce566cb585d549af9134729e6d5fc4f4,

title = "Some rockmagnetic parameters for natural goethite, pyrrhotite and fine-grained hematite",

abstract = "The increasing importance of sediments for paleomagnetic research prompted a study of rockmagnetic parameters of natural goethite, pyrrhotite and hematite. Grain-size dependent behaviour of such parameters is poorly known for goethite and pyrrhotite as well as for fine-grained hematite. Data of hematite indicate a complex rockmagnetic behaviour. Existing data seem to be contradictory in many aspects. The rockmagnetic parameters reported in the present thesis for the natural goethite and pyrrhotite samples comprise twelve grain-size fractions from 250 micrometer down to <5 micrometer. For the natural hematite sample, which has a low-temperature origin, the <5 micrometer fraction was divided into six grain-size fractions down to <0.25 micrometer.",

author = "M.J. Dekkers",

note = "Geologica Ultraiectina ; 51",

year = "1988",

month = jan,

day = "27",

language = "English",

publisher = "Faculteit Aardwetenschappen",

type = "Doctoral thesis 1 (Research UU / Graduation UU)",

school = "Universiteit Utrecht",

}

TY - THES

T1 - Some rockmagnetic parameters for natural goethite, pyrrhotite and fine-grained hematite

AU - Dekkers, M.J.

N1 - Geologica Ultraiectina ; 51

PY - 1988/1/27

Y1 - 1988/1/27

N2 - The increasing importance of sediments for paleomagnetic research prompted a study of rockmagnetic parameters of natural goethite, pyrrhotite and hematite. Grain-size dependent behaviour of such parameters is poorly known for goethite and pyrrhotite as well as for fine-grained hematite. Data of hematite indicate a complex rockmagnetic behaviour. Existing data seem to be contradictory in many aspects. The rockmagnetic parameters reported in the present thesis for the natural goethite and pyrrhotite samples comprise twelve grain-size fractions from 250 micrometer down to <5 micrometer. For the natural hematite sample, which has a low-temperature origin, the <5 micrometer fraction was divided into six grain-size fractions down to <0.25 micrometer.

AB - The increasing importance of sediments for paleomagnetic research prompted a study of rockmagnetic parameters of natural goethite, pyrrhotite and hematite. Grain-size dependent behaviour of such parameters is poorly known for goethite and pyrrhotite as well as for fine-grained hematite. Data of hematite indicate a complex rockmagnetic behaviour. Existing data seem to be contradictory in many aspects. The rockmagnetic parameters reported in the present thesis for the natural goethite and pyrrhotite samples comprise twelve grain-size fractions from 250 micrometer down to <5 micrometer. For the natural hematite sample, which has a low-temperature origin, the <5 micrometer fraction was divided into six grain-size fractions down to <0.25 micrometer.

M3 - Doctoral thesis 1 (Research UU / Graduation UU)

PB - Faculteit Aardwetenschappen

CY - Utrecht

ER -

Some rockmagnetic parameters for natural goethite, pyrrhotite and fine-grained hematite

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