Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques

P Ludwig, R Egli, S Bishop, V Chernenko… - Global and Planetary …, 2013 - Elsevier
We present a novel technique for quantitative unmixing of primary and secondary
ferrimagnetic minerals in sediments. Hysteresis and high-resolution first-order reversal curve …

Quantifying the concentration of ferrimagnetic particles in sediments using rock magnetic methods

I Lascu, SK Banerjee, TS Berquó - Geochemistry, Geophysics …, 2010 - Wiley Online Library
We have developed a quantification method that uses mainly room temperature rock
magnetic measurements to calculate concentrations of ferrimagnetic particles in sediments …

A new tool for separating the magnetic mineralogy of complex mineral assemblages from low temperature magnetic behavior

F Lagroix, Y Guyodo - Frontiers in Earth Science, 2017 - frontiersin.org
One timeless challenge in rock magnetic studies, inclusive of paleomagnetism and
environmental magnetism, is decomposing a sample's bulk magnetic behavior into its …

Signatures of reductive magnetic mineral diagenesis from unmixing of first‐order reversal curves

AP Roberts, X Zhao, RJ Harrison… - Journal of …, 2018 - Wiley Online Library
Diagenetic alteration of magnetic minerals occurs in all sedimentary environments and
tends to be severe in reducing environments. Magnetic minerals provide useful information …

Magnetic unmixing of first‐order reversal curve diagrams using principal component analysis

I Lascu, RJ Harrison, Y Li, JR Muraszko… - Geochemistry …, 2015 - Wiley Online Library
We describe a quantitative magnetic unmixing method based on principal component
analysis (PCA) of first‐order reversal curve (FORC) diagrams. For PCA, we resample FORC …

Simple and efficient separation of magnetic minerals from speleothems and other carbonates

JH Strehlau, LA Hegner, BE Strauss… - Journal of …, 2014 - pubs.geoscienceworld.org
Trace concentrations of iron oxide minerals in carbonate sediments can preserve fine details
about Earth processes, from high-resolution recordings of the Earth's ancient magnetic field …

Quantitative extraction and analysis of carriers of magnetization in sediments

MW Hounslow, BA Maher - Geophysical Journal International, 1996 - academic.oup.com
We have applied an integrated procedure for quantitative magnetic mineral extraction,
based on the separation method of Petersen, von Dobeneck & Vali (1986), to a range of …

Efficiency of heavy liquid separation to concentrate magnetic particles

C Franke, T Frederichs… - Geophysical Journal …, 2007 - academic.oup.com
Low-temperature rock magnetic measurements have distinct diagnostic value. However, in
most bulk marine sediments the concentration of ferrimagnetic and antiferromagnetic …

Numerical unmixing of weakly and strongly magnetic minerals: examples with synthetic mixtures of magnetite and hematite

P Liu, AM Hirt, D Schüler, R Uebe, P Zhu… - Geophysical Journal …, 2019 - academic.oup.com
The characterization of magnetic minerals in rocks often uses methods that measure
induced magnetization. When rocks, sediments or soils contain two magnetic phases, in …

Numerical strategies for magnetic mineral unmixing

D Heslop - Earth-Science Reviews, 2015 - Elsevier
Iron-bearing minerals are sensitive to a wide spectrum of natural processes and thus carry
important environmental information. In environmental magnetism, various techniques are …