Download or read book The Geology of Harrat Al Madinah Volcanic Field Harrat Rahat Saudi Arabia written by M. R. H. Moufti and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geoheritage of Volcanic Harrats in Saudi Arabia written by Mohammed Rashad Moufti and published by Springer. This book was released on 2016-06-24 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book records the geoheritage values of globally significant, yet little-known, volcanic geosites in Saudi Arabia. It is the first of its kind to focus on the Middle East, clearly showing the hidden geoheritage value of the volcanic Arabian Peninsula’s harrats and demonstrating why the Saudi Arabian volcanic fields are unique. Along with the systematic geosite description, the book introduces scientifically founded geoeducational programs that can be used to develop our understanding of volcanic geoheritage values of volcanic fields. It offers a detailed and comprehensive research-based description of four of the most accessible volcanic harratts in Saudi Arabia and an additional summary of other more remote fields. Additionally, it discusses geoeducational programs that could be used to link these volcanic areas and use them in volcanic hazard education.
Download or read book Cenozoic Volcanic Rocks of Saudi Arabia written by Robert Griffin Coleman and published by . This book was released on 1983 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geoheritage and Geodiversity of Cenozoic Volcanic Fields in Saudi Arabia written by Károly Németh and published by Springer Nature. This book was released on with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petrogenesis and Exploration of the Earth s Interior written by Domenico M. Doronzo and published by Springer. This book was released on 2019-02-22 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume is based on the best papers accepted for presentation during the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018. The book is of interest to all researchers in the fields of Mineralogy, Geochemistry, Petrology and Volcanology. The Earth's interior is a source of heat, which makes our planet unique. This source regulates the formation and evolution of rocks at larger scales, and of minerals and sediments toward smaller scales. In such context, the exploration of georesources (products) has to be related to petrogenesis (processes). This volume offers an overview of the state-of-the-art petrogenesis and exploration in, but not limited to, the Middle East and Mediterranean regions. It gives new insights into processes and products related to the Earth's interior, and associated georesources by international researchers. Main topics include: 1. Petrogenetic processes: geochemistry, geochronology and geophysical approaches 2. Surficial processes: sedimentation and facies analysis 3. Applied mineralogy and tectonics 4. Geological research applied to mineral deposits
Download or read book Monogenetic Volcanism written by K. Németh and published by Geological Society of London. This book was released on 2017-06-20 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nature and origin of the small-scale volcanic systems, generally referred to as 'monogenetic', have enjoyed an elevated level of interest during the past decade. There has been recognition that their ostensibly simple volcano types are a window into the nature of explosive volcanism, landscape evolution and the processes of magma generation in the Earth’s upper mantle. In the past few years, major conferences have offered specialized technical sessions dealing with monogenetic volcanism and there have been thematic conferences, such as the IAVCEI International Maar Conference series, which have provided a focus for discussion of volcanological and geochemical aspects of small-scale basaltic volcanism. Many new aspects of monogenetic volcanism have emerged and have clearly demonstrated that this volcanism can be very complex on a fine scale. This book is a collection of papers arising from two recent Maar Conferences (the fifth in Queretaro Mexico and the sixth in Changchun, China) and serves as a snapshot of current research on monogenetic volcanism.
Download or read book The Interpretation of Igneous Rocks written by Keith Gordon Cox and published by Springer Science & Business Media. This book was released on 2013-04-09 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our aim in writing this book is to try to show how igneous rocks can be persuaded to reveal some ofthe secrets of their origins. The data of igneous rocks consist of field relations, texture, mineralogy, and geochemistry. Additionally, experimental petrology tells us how igneous systems might be expected to behave. Working on this material we attempt to show how hypotheses concerning the origins and evolution of magmas are proposed and tested, and thus illuminate the interesting and fundamental problems of petrogenesis. The book assumes a modest knowledge of basic petro graphy, mineralogy, classification, and regional igneous geology. It has a role complementary to various established texts, several of which are descriptively good and give wide coverage and evaluation of petrogenetic ideas in various degrees of detail. Existing texts do not on the whole, however, deal with methodology, though this is one of the more important aspects of the subject. At first sight it may appear that the current work is a guidebook for the prospective research worker and thus has little relevance for the non-specialist student of geology. We hope this will prove to be far from the case. The methodological approach has an inherent interest because it can provide the reader with problems he can solve for himself, and as an almost incidental consequence he will acquire a satisfying understanding.
Download or read book On Significant Applications of Geophysical Methods written by Narasimman Sundararajan and published by Springer. This book was released on 2019-02-13 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume is based on the best papers accepted for presentation during the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018. This special volume is of interest to all researchers practicing geosphysicists/seismologists, students of PG and UG in the fields of multifaceted Geoscience. Major applications with relevant illustrations presented in the volume are from Middle East. And therefore, this book no doubt would serve as a reference guide to all geoscientists and students in the broad field of Earth Science. This volume covers significant applications of gravity and magnetic methods, electrical and electromagnetic methods, refraction and reflection seismic methods besides a large number of study on earthquakes, tectonics and geological settings etc. The salient features of this volume are the interpretation and modeling of geophysical data of different nature. Main topics include: 1. Applications of gravity and magnetic methods.2. Electrical and Electromagnetic methods in mineral and groundwater exploration.3. Case studies on refraction and reflection seismic methods.4. Integrated geoscience applications in the exploration of subsurface resources.5. Hydrocarbon and petrophysical studies6. Earthquakes and seismic hazard assessment.7. Tectonics
Download or read book Geological Setting Palaeoenvironment and Archaeology of the Red Sea written by Najeeb M.A. Rasul and published by Springer. This book was released on 2018-12-05 with total page 803 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers invited contributions from active researchers to provide an up-to-date overview of the geological setting of the Red Sea. It discusses aspects ranging from historical information to modern research in the Red Sea, and presents findings from rapidly advancing, emerging fields. This semi-enclosed young ocean basin provides a unique opportunity to study the development of passive continental margins in order to examine the current status of that region. In addition to studies on the Sea itself, it includes those from related fields on the littoral zone. The book is of interest to geoscientists and non-specialists alike.
Download or read book Monogenetic Volcanism in the Western Arabian Peninsula written by Hugo Murcia and published by . This book was released on 2015 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extreme Natural Hazards Disaster Risks and Societal Implications written by Alik Ismail-Zadeh and published by Cambridge University Press. This book was released on 2014-04-17 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique interdisciplinary approach to disaster risk research, including global hazards and case-studies, for researchers, graduate students and professionals.
Download or read book The Red Sea written by Najeeb M.A. Rasul and published by Springer. This book was released on 2015-04-02 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a broad overview of the current state of knowledge regarding the Red Sea, from its geological formation and oceanographic development to the environmental influences on its ecology and the changes it is experiencing due to the rapid development of its coastlines and role as one of the world’s major transport routes. The book gathers invited contributions from researchers with an interest in the geology, geophysics, oceanography and environment of the Red Sea, while also providing comprehensive new data and a complete review of the literature. It will be of interest not only to researchers actively studying the sea and its surroundings, but will also appeal to all those involved in planning and managing the Red Sea, its environment, its resources and the countries which rely on its existence.
Download or read book Saudi Arabia An Environmental Overview written by Peter Vincent and published by CRC Press. This book was released on 2008-01-17 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of Saudi Arabia‘s environment, this volume is a unique and authoritative text on the geological and environmental aspects of Saudi Arabia, a country about which little is known by the outside world. Saudi Arabia is a fascinating country with a long tradition of environmental awareness and sensitivity, pitted again
Download or read book Geological heritage in the Arab region written by Sattout, Elsa and published by UNESCO Publishing. This book was released on 2020-10-21 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Geology of the Arabian Nubian Shield written by Zakaria Hamimi and published by Springer Nature. This book was released on 2021-07-30 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated book reviews the geology, tectonics and mineralization of the Arabian-Nubian Shield (ANS) in 27 chapters. It starts with an examination of the ANS lithospheric scale features, explores Mesoproterozoic units and deals with the ANS oceanic stage. Arc volcanism and plutonism, post-collision basins and volcanics are discussed, as well as the younger granitoid magmatism and the deformation history of the ANS. The book provides information on ANS glacial stages and late magmatism. Chapters are devoted to review the transition between ANS and the reworked continent to its south. Finally, it discusses how ANS structures influenced the overall East African Rift System.
Download or read book Encyclopedia of Planetary Landforms written by Henrik Hargitai and published by Springer. This book was released on 2015-08-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technique of the mapping of planetary surfaces and the methods used for the identification of various planetary landforms improved much in the last 400 years. Until the 20th century, telescopic observers could interpret planetary landforms solely based on their appearance, while today various data sets acquired by space probes can be used for a more detailed analysis on the composition and origin of the surface features. Before the Greeks, the Earth and the Heavens were indisputably of different origin and nature. It was a major philosophical breakthrough - first appeared as an a priori theory, later based on observations - that the Heavens (planetary bodies) and the Earth share common features: gravity, composition and solar distance may be different, but the nature of the physical processes shaping the landforms are essentially the same. It has been a long way since we have arrived from the first telescopic description of lunar craters to the identification of various geological formations on Mars or on minor planets. Relief features of the Moon have first been observed by Galileo Galilee, via his telescope. During the next centuries, a multitude of Lunar landforms have been identified. Theories based on observations have been connected together by a scientific paradigm which explained their origin in a logical and seemingly undisputable manner. Telescopes showed a Lunar surface full of circular landforms, called craters, a landscape with no parallel on Earth. But the individual landforms had a morphological equivalent, volcanoes, which naturally led to the conclusion that craters had been created by volcanic processes. Maria ("seas") served as natural basins for water bodies. Observations clearly showed that water and air are hardly found on the Moon, the lack of clouds indicated the lack of precipitation. But the flat surface of the maria (obviously composed of marine sediments) and the meandering valleys suggested the presence of liquid water and a higher atmospheric pressure in the past - during the age of active volcanism and degassing. There were no observable active volcanic processes but some craters (though to be volcanoes) have been observed as being active: flashes of light - interpreted as eruptions - have been reported by several observers. The presence of pyroclasts thrown out from the volcanic vents of craters provided an independent evidence: meteor showers and individual meteorites falling from the sky - originating from Lunar craters. The logical and interconnected set of explanations based on observations proved to be completely false by the second half of the 20th century. The new paradigm interpreted the very same features in a new context. The case of Mars was different. There were no telescopes capable of observing relief forms (no shadows on Mars are visible from the Earth, because Mars always shows a nearly full Mars phase), so only albedo features could be seen and used for interpretation. The lack of visible relief features were interpreted as a lack of considerable topography: an unnoticed distortion in the observational data. The hue and contrast of dark and bright, orange, grey and white spots have changed seasonally, the polar areas clearly showed a polar cap made of ice and snow, but clouds have not been observed. Since Mars is farther away from the Sun than the Earth, it was evident that temperature values are lower there. Scientists concluded that Mars is an ancient, arid world. Then contemporary geology taught the theory according to which waters on the Earth are going to infiltrate underground in time, making the surface dry - observations showed that this had already happened on Mars. The last surface reservoirs of water were the polar caps. Some observers reported seeing a global network of linear features, but other have only seen very few of such albedo markings. These features were interpreted as "canals," made by a civilization for irrigation, carrying water from the poles to all around the flat plains of Mars. What was observable from the Earth were the broad stripes of irrigated vegetation (like those along the Nile), the canals themselves were too narrow to be visible from here. All theories converged - supposing that the features seen by some, but not seen by others, were real. There was no chance for verification until spacecrafts have been developed which were able to make local observations. Instead of canals, the first pictures returned revealed a surface full of craters - a landform not expected by anyone. A paradigm shift was needed to explain the features of the "new" Mars. On the Moon, features were observable, but the interpretation was wrong. On Mars, only blurred albedo markings could be observed, along with sharp lines of imagination, which again were interpreted falsely. In the case of Venus, there was no data on surface features. Only its bright cloud top could be observed from the Earth. But this fact along with the planet's orbital parameters provided enough information for a popular view on its surface conditions: a hot world (inferred from its proximity to the Sun) and also a rainy one (from its complete cloud cover). The conclusion: Venus is a global jungle possibly with dinosaurs, like the hot and wet world of the then-discovered Mesozoic era. Our current knowledge originated from these early attempts of interpreting surface conditions and geological origin of landforms from a very little set of available data. Today we have a huge set of images and other physical data which makes it possible to create models on the inner structure and thermal history of planetary bodies. Combined data sets lead to better supported models on the formation of surface features. Today we believe that most models give reliable explanation for the origin of planetary landforms. New, higher resolution images reveal new sets of meso- and microscale landforms, while images from previously not imaged dwarf planets, satellites, asteroids and cometary nuclei show landforms never seen before. In the future exoplanets are expected to provide brand new types of relief features no predictable by our Earth-and Solar System bound imagination. There are so many different landforms on planetary surfaces that it is nearly impossible for anybody to overview all of them who does not work exactly with that certain feature type. The Encyclopedia helps with presenting the landforms in searchable, alphabetical order. The book contains more than a simple list of various features: it provides context and connections between them and point to their origin. For example sand dunes were found on Venus, Mars and Titan, fluvial valleys and shorelines are present on Mars and Titan, impact craters have many different types - all are presented and explained here. Beyond the texts, references, schematic figures, images and planetary maps accompany the description of landforms, providing a wide background for detailed analyses even for geomorphologists working in planetary science. This book is to help the reader to discover the great variety of planetary landforms.
Download or read book Improving Probabilistic Hazard Forecasts in Volcanic Fields written by Melody Gwyneth Runge and published by . This book was released on 2015 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forecasts of future volcanic activity are frequently required for volcanic fields as their relatively low eruption rates and fertile soils draw human populations to live in close proximity to these potentially hazardous regions. Harrat Rahat in the Kingdom of Saudi Arabia is one of these volcanic fields, situated immediately south east of the city of Al-Madinah (population 1.5 million). Recent eruptions (641 AD, 1256 AD) and a seismic swarm (1999 AD) motivated this research to model past and potential volcanic activity within Harrat Rahat. The complexity of volcanic systems, the difficulty of establishing precise event records, and ignorance of the specific subsurface processes driving volcanic eruptions render deterministic approaches currently, and potentially never, unattainable. Thus, the majority of existing approaches to hazard forecasting are probabilistic, in which patterns are fitted to previous activity and then extrapolated into the future. To forecast activity in volcanic systems, some simplification is required to attempt to model their behaviour. These include the assumptions of independent spatial and temporal behaviour, and that each eruption centre is a separate eruption in both time and space. However, the choice of simplification approach has the potential to render incorrect, rather than just uncertain, results. Novel quantitative methods were developed to address three major complexities noted within volcanic fields: (1) multiple-vent eruptions, (2) hidden eruptive centres, and (3) the relationship of volcanism to geological, geophysical, and geographical ancillary data. Sensitivity analyses were then completed for two major subjective decisions common during volcanic field hazard forecasting: (1) the definition of a volcanic field boundary, and (2) selection of a pattern approximation method. Application of these new techniques to Harrat Rahat resulted in a conservative forecast for future eruption activity. This forecast incorporates the complex, multi-dimensional eruptions noted within Harrat Rahat by collapsing the 968 identified vents into 752 events and is based on an anisotropic kernel spatial smoothing method with an expanding volcanic field boundary. However, substantial uncertainties are attached to this forecast due predominantly to insufficient age data for the field. Ancillary data analysis also revealed structural controls on the volcanism across the Arabian Shield suggesting that future work should be focussed both on age data collection and geophysical methods to reveal crustal structure. This work also raises questions concerning a large number of existing practices in volcanic hazard forecasting, especially with regards to objective decision-making and assumption validation. An open, defensible procedure is suggested as a first step towards a consolidated process for the development of hazard forecasts.
