VI
Preface
This book would not have been written without the encouragement
of Prof. Dr. C. W. CORRENS. Dr. NIELSEN introduced me into the basic
principles of mass spectrometry and isotope geochemistry. His advice
and constructive criticism is gratefully acknowledged. Valuable discussions with Professor K. H. WEDEPOHL have supported the progress
of the manuscript. Drs. H. P. SCHWARCZ, S. M. F. SHEPPARD, W. STAHL,
and D. H. WELTE have kindly reviewed an early draft of the manuscript.
Special thanks go to Dr. P. G. COOMER, who has improved the English
considerably.
Gottingen, April 1973
JOCHEN HOEFS
Preface
This book would not have been written without the encouragement
of Prof. Dr. C. W. CORRENS. Dr. NIELSEN introduced me into the basic
principles of mass spectrometry and isotope geochemistry. His advice
and constructive criticism is gratefully acknowledged. Valuable discussions with Professor K. H. WEDEPOHL have supported the progress
of the manuscript. Drs. H. P. SCHWARCZ, S. M. F. SHEPPARD, W. STAHL,
and D. H. WELTE have kindly reviewed an early draft of the manuscript.
Special thanks go to Dr. P. G. COOMER, who has improved the English
considerably.
Gottingen, April 1973
JOCHEN HOEFS