Picroilmenite in Kimberlites and Titanomagnetites of the Yakutian Diamond-Bearing Province

This book examines picroilmenites and their ferromagnetic behavior in the kimberlites from the Yakut diamondiferous province. Picroilmenites are minerals used to identify the location of diamonds. The author shows a solid interpretation of the magnetic-mineralogical analysis of ferromagnetic minerals based on a large number of experimental data and modeling of the magnetic state. He also presents the problems of the variability of the composition of picroilmenites from various kimberlite pipes. Furthermore, this book proposes a method to estimate the distribution of the decay structures dimensions, according to the thermomagnetic analysis and coercive spectra of titanomagnetites with the magnetite-ulvospinel decomposition structures.

This book will be useful for students and researchers working in the field of rock magnetism, as well as geologists and geophysicists.

Contenu
Content

Introduction

Chapter 1. Review of previously published works of other authors

Chapter 2. Methods and equipment for magneto-mineralogical analysis

Chapter 3. Picroilmenite from kimberlites

1. Experimental data
2. Heterogeneity of picroilmenites composition theory and methods of interpretation
3. Thermomagnetic investigation results of picroilmenites of different pipes.
4. Magnetite in picroilmenites
5. Pyrite in kimberlites
   

Chapter 4. Titanomagnetites from traps formations

1. Experimental data, typification of titanomagnetite from traps
2. Experimental data of samples containing titanomagnetites with magnetite-ulvospinel exsolution structures. Theory and methods of interpretation of magneto-mineralogical analysis of trap which is containing titanomagnetite with magnetite-ulvospinel exsolution structures
3. Application (prospecting)
   

Conclusions