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Geology of Afar (East Africa)
This book summarizes the geological knowledge accumulated on Afar in the last 60 years, demonstrating that it is, and will remain, a real “hot spot” for geological and geophysical research. It provides insights into the Earth processes along diverging plate boundaries, the study of both the continental and oceanic lithosphere and underlying asthenosphere, and margins and transitions including magmatic, volcanic, tectonic, sedimentary, hydrothermal and geodynamic processes. The Afar triangle is a geological depression that developed where the Gulf of Aden, Red Sea and East African Rift Valley meet. It is considered to be one of the Earth system’s most important mantle plumes. In 1967, w...
A Grammar of Huallaga (Huánuco) Quechua
This is a comprehensive, nonformal description of a Quechua language of central Peru, incorporating both structural and functional insights. Topics include: the demographic situation, an introduction to the syntax, word and suffix classes, morphology, case relations, passives, substantive phrases, relative clauses, complements, adverbial clauses, reduplication, question formation, negation, conjunction, evidential suffixes, the topic marker, idioms and formulaic expressions, phonology, and loan processes.
Magmatic Rifting and Active Volcanism
A major rifting episode began in the Afar region of northern Ethiopia in September 2005. Over a ten-day period, c. 2.5 km3 of magma were intruded along a 60 km-long dyke separating the Arabian and Nubian plates. Over the next five years, a further 13 dyke intrusions caused continued extension, eruptions and seismicity. This activity led to a renewed international focus on the role of magmatism in rifting, with major international collaborative projects working in Afar and Ethiopia to study the ongoing activity and to place it in a broader context. This book brings together articles that explore the role of magmatism in rifting, from the initiation of continental break-up through to full seafloor spreading. We also explore the hazards related to rifting and the associated volcanism. This work has implications for our understanding of how continents break-up and the associated distribution of resources in rift basins and continental margins.
Methodology and African Prehistory
The result of years of work by scholars from all over the world, The UNESCO General History of Africa reflects how the different peoples of Africa view their civilizations and shows the historical relationships between the various parts of the continent. Historical connections with other continents demonstrate Africa's contribution to the development of human civilization. Each volume is lavishly illustrated and contains a comprehensive bibliography.
Landscapes and Landforms of the Horn of Africa
This book focuses on regions for which until now the geomorphology was very poorly studied and relatively unknown. Nevertheless, the landforms and landscapes of the Horn of Africa are highly attractive, diverse and in a few cases unique, since they span very different environments, from highland plateaus and mountains to lowlands (even below sea level) and coastlines with a high degree of diversity and from monsoon to arid climate conditions. The main topics addressed in the book include the links between the geological evolution and the current large scale geomorphology of the Horn of Africa; the large differences between the highlands and lowlands climate, river hydrology and their variati...
Africa
Includes Proceedings of the Executive council and List of members, also section "Review of books".
Le texte légitime
La question nait d'une situation paradoxale : Pourquoi les societes musulmanes d'Afrique du nord-est, pourtant situees au plus pres de l' Arabie, ne sont-elles pas devenues monolingues arabophones, comme par exemple celles du Nord-Soudan ? Comment peut- on expliquer chez les Bedjas, les Sahos, les Afars et les Somalis cette resistance a une assimilation complete ? Les reponses que ce livre propose montrent que l'histoire des pratiques litteraires dans cette partie du Continent est celle d'un partage en complementarite des roles assignes a l'ecriture et a l' oralite; d'une copresence offrant a l'arabe une superiorite incontestee dans tous les domaines extra-communautaires (dont celui de la re...
