The biogeochemistry of ferruginous lakes and past ferruginous oceans

ED Swanner, N Lambrecht, C Wittkop, C Harding… - Earth-Science …, 2020 - Elsevier
Anoxic and iron-rich (ferruginous) conditions prevailed in the ocean under the low-oxygen
atmosphere that occurred through most of the Archean Eon. While euxinic conditions (ie …

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 …

An improved algorithm for unmixing first‐order reversal curve diagrams using principal component analysis

RJ Harrison, J Muraszko, D Heslop… - Geochemistry …, 2018 - Wiley Online Library
First‐order reversal curve (FORC) diagrams of synthetic binary mixtures with single‐domain,
vortex state, and multidomain end‐members (EMs) were analyzed using principal …

[HTML][HTML] Sonocatalytic performance of magnetically separable CuS/CoFe2O4 nanohybrid for efficient degradation of organic dyes

F Siadatnasab, S Farhadi, A Khataee - Ultrasonics sonochemistry, 2018 - Elsevier
The sonocatalytic activity of the magnetic CuS/CoFe 2 O 4 (CuS/CFO) nanohybrid was
studied through the H 2 O 2-assisted system for degradation of water soluble organic …

Domain state diagnosis in rock magnetism: evaluation of potential alternatives to the Day diagram

AP Roberts, P Hu, RJ Harrison… - Journal of …, 2019 - Wiley Online Library
The Day diagram is used extensively in rock magnetism for domain state diagnosis. It has
been shown recently to be fundamentally ambiguous for 10 sets of reasons. This ambiguity …

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 …

Speleothem magnetism

I Lascu, JM Feinberg - Quaternary Science Reviews, 2011 - Elsevier
The magnetic recordings preserved in calcite speleothems and the nature of their
constituent magnetic minerals hold enormous potential for paleomagnetic and …

Classification of a complexly mixed magnetic mineral assemblage in Pacific Ocean surface sediment by electron microscopy and supervised magnetic unmixing

J Li, Y Liu, S Liu, AP Roberts, H Pan, T **ao… - Frontiers in Earth …, 2020 - frontiersin.org
Unambiguous magnetic mineral identification in sediments is a prerequisite for
reconstructing paleomagnetic and paleoenvironmental information from environmental …

Paleoposition of the Intertropical Convergence Zone in the eastern Pacific inferred from glacial-interglacial changes in terrigenous and biogenic magnetic mineral …

T Yamazaki - Geology, 2012 - pubs.geoscienceworld.org
Magnetic properties are increasingly used for paleoclimatic and paleoceanographic studies.
Utilizing recently developed proxies, an environmental magnetic study was conducted on …