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The Lexicon of Oman Subsurface Stratigraphy is a reference and practical, operational guide for all those involved with the subsurface geology of Oman. It will be equally at home surrounded by bags of wet ditch cuttings samples and binocular microscopes in the mudlogging unit of a drilling well or on the leather trimmed desk of a learned university professor. It provides a systematic overview of the current state of knowledge of the stratigraphy of Oman’s hydrocarbon basins. The Lexicon will help the wellsite geologist pick his formation tops, whilst for the production geologist or the explorationist it provides the geological context to review, correlate and understand their reservoir, seal or hydrocarbon system. Academics can use it as the starting point for their investigation of any aspect of the geology of Oman or indeed even the wider Arabian Plate. It provides a top to bottom review of the geology with brief insights into some of the major ongoing academic debates. Not all questions are answered, or even attempted to be answered but the reader will find directions to extensive reference material (there are 18 pages of references). Illustrations include almost 150 well panels together with lithologies, fossils and location maps.

Contents: 5 Foreword by H.E. the Minister of Oil and Gas. 6 Authorship and Acknowledgements. 7 Dedication; CHAPTER 1: Introduction. 12 Introduction. 13 Approach and Conventions. 15 Tectono-stratigraphic Synopsis; CHAPTER 2: Surface Sediments. 19 Surface Sediments; CHAPER 3: Fars Group. 20 Fars Group. 22 Dhulaima Formation. 23 Taqa Formation; CHAPTER 4: Hadhramaut Group. 26 Hadhramaut Group. 28 Dammam Formation. 29 Rus Formation. 31 Umm Er Radhuma Formation; CHAPTER 5: Aruma Group. 37 Aruma Group. 39 Simsima Formation.42 Fiqa Formation; CHAPTER 6: Wasia Group. 47 Wasia Group. 49 Natih Formation. 56 Nahr Umr Formation; CHAPTER 7: Kahmah Group. 63 Kahmah Group. 66 Shu’aiba Formation. 73 Kharaib Formation. 76 Lekhwair Formation. 80 Habshan Formation. 84 Salil Formation. 86 Rayda Formation. 87 Mesozoic Clastics Formation; CHAPTER 8: Sahtan Group. 97 Sahtan Group. 101 Jubaila Formation. 104 Hanifa Formation. 107 Tuwaiq Mountain Formation. 108 Dhruma Formation. 114 Mafraq Formation; CHAPTER 9: Akhdar Group. 122 Akhdar Group. 124 Minjur Formation. 126 Jilh Formation. 130 Sudair Formation. 132 Khuff Formation; CHAPTER 10: Haushi Group. 141 Haushi Group. 143 Gharif Formation. 156 Al Khlata ormation. 164 P1 Rahab; CHAPTER 11: Misfar Group. 166 Misfar Group; CHAPTER 12: Haima Supergroup – Safiq Group. 171 Haima Supergroup. 176 Safiq Group. 179 Sahmah Formation. 183 Hasirah Formation. 189 Saih Nihayda Formation; CHAPTER 13: Andam Group. 193 Andam Group. 196 Ghudun Formation. 203 Barakat Formation. 208 Mabrouk Formation. 213 Barik Formation. 220 Al Bashair Formation; CHAPTER 14: Mahatta Humaid Group. 227 Mahatta Humaid. 229 Miqrat Formation. 233 Mahwis Formation. 241 Amin Formation; CHAPTER 15: Huqf Supergroup – Nimr Group. 252 Huqf Supergroup. 255 Nimr Group. 261 Haradh Formation. 267 Karim Formation; CHAPTER 16: Ara Group. 274 Ara Group. 281 Dhahaban Formation. 284 Al Noor Formation. 289 Athel Formation. 294 Thuleilat Member. 295 Al Shomou Member. 299 Thamoud Member. 300 U Formation. 304 Birba Formation; CHAPTER 17: Nafun Group. 312 Nafun Group. 317 Buah Formation. 322 Shuram Formation. 327 Khufai Formation. 330 Masirah Bay Formation. 337 Hadash Formation; CHAPTER 18: Abu Mahara Group. 339 Abu Mahara Group. 344 Ghadir Manqil Formation; CHAPTER 19: Basement Group. 350 Basement Group. 353 REFERENCES. 371 ABOUT THE AUTHORS ENCLOSURES

1: Oman Subsurface Stratigraphy

2: (a) Oman Location and Structure Map

(b) Legend for Type and Reference Sections

(c) Oman Lithostratigraphy

3: CD