Open AccessAn Instrument For Measuring the Axial Remanent Magnetization of Long Sediment Cores
Author(s) -
Noel Mark,
Pickering Morgan,
Molyneux Lindsay
Publication year - 1989
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1989.tb00487.x
Subject(s) - magnetometer , geology , remanence , fluxgate compass , core (optical fiber) , magnetization , geophysics , geodesy , natural remanent magnetization , signal (programming language) , magnetic field , seismology , optics , physics , quantum mechanics , computer science , programming language
Summary This paper describes how DIGICO or MOLSPIN apparatus can form the basis of a new magnetometer for measuring vertical components of remanence along complete sediment cores. the core oscillates as a horizontal pendulum while longitudinal external field gradients are detected using a shielded fluxgate array. A deconvolution procedure recovers the vertical magnetization profile from the signal. These data can then be combined with horizontal component information to obtain records of palaeomagnetic inclination without recourse to subsampling. the instrument has been evaluated using a synthetic core.