This book is written by 16 experienced geologists with first hand knowledge of the geology of Iraq and deals with all aspects of the country's geology. The aims of the book are to present a synthesis of the geological history of Iraq and a description of its economic geology, and to provide a key reference for both students and professional geologists. It updates the text books of Buday (1980) and Buday and Jassim (1987). The book includes previously unpublished information collected during the regional geological surveys of Iraq carried out from 1970 to 1990. Each chapter has been extensively edited to create a concise text. The stratigraphy of Iraq is placed within a consistent tectonostratigraphic framework.

This is an open access book. Rocscience is delighted to announce the Rocscience International Conference 2023 (RIC2023), an in-person gathering to be held from April 24–26, 2023, in Toronto, Canada. RIC2023's primary objective is to bring geotechnical professionals together to meet and exchange ideas on important issues and developments in geotechnical engineering, particularly combinations of emerging and mature technologies. The geotechnical industry is rapidly evolving. Engineers are more connected through technology, technology is becoming more integrated than ever, and methods combining these technologies are becoming more prevalent. This movement towards combining technologies led us to the conference theme, “Synergy in Geotechnical Engineering – Success Beyond Individual Technologies.” We believe the time is right to highlight how far the industry has come with various technologies and continues to develop. The conference aims to create an environment that fosters new perspectives and helps attendees delve deeper into innovative approaches. During RIC2023, Rocscience will award the 2023 Lifetime Achievement Medal to Dr. Norbert Morgenstern, an internationally recognized authority in the engineering community. As both a practitioner and educator, Dr. Morgenstern’s contributions to the geotechnical community continue to benefit engineers worldwide, and he will give an address on his career. In addition to keynotes by Dr. Morgernstern and four other distinguished speakers, there will be several technical and networking sessions.

This Proceedings volume contains papers from three symposia which were held during the 29th International Geological Congress, Kyoto, Japan, 24 August--3 September 1992. From the first symposium --- ''Metamorphic Reactions: kinetics and mass transfer'' --- 5 papers were selected for publication. One of the objectives of the symposium was to clarify the nature of reactions and mass transfer from the viewpoint of kinetics. From the ''Sandstone Petrology in Relation to Tectonics''-symposium, 10 papers were selected and revised for inclusion in this book. The articles reflect the different approaches on the relationship between sandstone composition and tectonic setting. The third symposium in this volume --- ''Evaporite and Desert Environment'' consists of 8 selected papers. The papers summarize the relationship between various desertification factors and the dynamics of different regions, and the classification of these regions according to their geological and mineralogical factors.

TABLE DES MATIERES 1. M. B. Illytuuh: Investigations Concerning Corrosion of Amorphous Titanium Alloy in o. 2N 1-1 2 SO, 1 2. 3. MaxcuAtoeuh and Gy. Panto: The Occurrence and Genesis of the Hydroxyl-Bastnaesites from Montenegro, Yugoslavia 15 3. B. M. HezTtpoeuh and Bepa Jaitith- IIIu6afzuh: Effect of Paraquat on Phenylethanolamine- N-Methyl Transferase and Monoamine Oxidase in the Rat Tissues 21 4. C. Kapamactia, C. Jatticoeuh, H. 73optjeeuh, A. JThepuh, I. H. Quraishi, A. Bhutta and Firdous Khan: Petrology and Evolution of the Koh-i-Dalil Volcano (Chagal Hills, Pakistan) 31 5. PajKa Paaounuh: On some Western Iraqi Desert Subsurface Formations, Block 49 6. H. M. Cmeeauoeutt H .71ttauja A. Heeeecicait: floHTHueci