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Chemical distinction between lithogenic and pedogenic iron oxides in environmental magnetism : a search for the perfect solution

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• Code	CallNo	Lokasi	Ketersediaan
  FTG000124		Perpustakaan FTG	Tersedia

• Perpustakaan	Fakultas Teknik Geologi
  Judul Seri	-
  No. Panggil	-
  Penerbit	Utrecht University : Utrecht., 2001
  Deskripsi Fisik	199 hlm; ilus; 24 cm
  Bahasa	English
  ISBN/ISSN	90-5744-065-2
  Klasifikasi	NONE
  Tipe Isi	-
  Tipe Media	-
  Tipe Pembawa	-
  Edisi	1
  Subyek	maghemite Czech republic magnetite extraction techniques soil science magnetism
  Info Detil Spesifik	-
  Pernyataan Tanggungjawab	-

• This thesis aims to enhance the identification of magnetic minerals that serve as climate proxies in soils and sediments. Standard rock-magnetic methods often yield non-unique results, so this work evaluates complementary techniques from chemistry and soil science. Chemical extraction methods (CBD and AAO-Fe²⁺) were tested on natural and synthetic samples but showed limited effectiveness in isolating pedogenic particles without affecting the lithogenic fraction. When combined with advanced magnetic techniques (e.g., FORC diagrams and IRM component analysis), however, they provided new insights. A novel electrochemical method, voltammetry of microparticles, was also successfully applied to loess and paleosol samples, enabling the detection and quantification of weak magnetic minerals like hematite. These advances contribute to a better understanding of the magnetic record of past climate changes

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