Download or read book Surface Heat Flow and Lithospheric Thermal Structure of the Northwestern Arabian Plate written by Felina Schütz and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surface heat flow (qs) is paramount for modeling the thermal structure of the lithosphere. Changes in the qs over a distinct lithospheric unit are normally directly reflecting changes in the crustal composition and therewith the radiogenic heat budget (e.g., Rudnick et al., 1998; Förster and Förster, 2000; Mareschal and Jaupart, 2004; Perry et al., 2006; Hasterok and Chapman, 2011, and references therein) or, less usual, changes in the mantle heat flow (e.g., Pollack and Chapman, 1977). Knowledge of this physical property is therefore of great interest for both academic research and the energy industry. The present study focuses on the qs of central and southern Israel as part of the Sinai Microplate (SM). Having formed during Oligocene to Miocene rifting and break-up of the African and Arabian plates, the SM is characterized by a young and complex tectonic history. Resulting from the time thermal diffusion needs to pass through the lithosphere, on the order of several tens-of-millions of years (e.g., Fowler, 1990); qs-values of the area reflect conditions of pre-Oligocene times. The thermal structure of the lithosphere beneath the SM in general, and south-central Israel in particular, has remained poorly understood. To address this problem, the two parameters needed for the qs determination were investigated. Temperature measurements were made at ten pre-existing oil and water exploration wells, and the thermal conductivity of 240 drill core and outcrop samples was measured in the lab. The thermal conductivity is the sensitive parameter in this determination. Lab measurements were performed on both, dry and water-saturated samples, which is labor- and time-consuming. Another possibility is the measurement of thermal conductivity in dry state and the conversion to a saturated value by using mean model approaches. The availability of a voluminous and diverse dataset of thermal conductivity values in this study allowed (1) in connection with the temperature gradient to calculate new reliable qs values and to use them to model the thermal pattern of the crust in south-central Israel, prior to young tectonic events, and (2) in connection with comparable datasets, controlling the quality of different mean model approaches for indirect determination of bulk thermal conductivity (BTC) of rocks. The reliability of numerically derived BTC values appears to vary between different mean models, and is also strongly dependent upon sample lithology. Yet, correction algorithms may significantly reduce the mismatch between measured and calculated conductivity values based on the different mean models. Furthermore, the dataset allowed the derivation of lithotype-specific conversion equations to calculate the water-saturated BTC directly from data of dry-measured BTC and porosity (e.g., well log derived porosity) with no use of any mean model and thus provide a suitable tool for fast analysis of large datasets. The results of the study indicate that the qs in the study area is significantly higher than previously assumed. The new presented qs values range between 50 and 62 mW m−2. A weak trend of decreasing heat flow can be identified from the east to the west (55-50 mW m−2), and an increase from the Dead Sea Basin to the south (55-62 mW m−2). The observed range can be explained by variation in the composition (heat production) of the upper crust, accompanied by more systematic spatial changes in its thickness. The new qs data then can be used, in conjunction with petrophysical data and information on the structure and composition of the lithosphere, to adjust a model of the pre-Oligocene thermal state of the crust in south-central Israel. The 2-D steady-state temperature model was calculated along an E-W traverse based on the DESIRE seismic profile (Mechie et al., 2009). The model comprises the entire lithosphere down to the lithosphere-asthenosphere boundary (LAB) involving the most recent knowledge of the lithosphere in pre-Oligocene time, i.e., prior to the onset of rifting and plume-related lithospheric thermal perturbations. The adjustment of modeled and measured qs allows conclusions about the pre-Oligocene LAB-depth. After the best fitting the most likely depth is 150 km which is consistent with estimations made in comparable regions of the Arabian Shield. It therefore comprises the first ever modelled pre-Oligocene LAB depth, and provides important clues on the thermal state of lithosphere before rifting. This, in turn, is vital for a better understanding of the (thermo)-dynamic processes associated with lithosphere extension and continental break-u

Download or read book Terrestrial Heat Flow and the Lithosphere Structure written by Vladimir Cermak and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terrestrial Heat Flow and the Lithosphere Structure summarizes current problems of analyzing related data. The individual chapters are written by leading scientists in geothermics, and are arranged in three sections: - General Lithospheric Geothermics - Regional Lithospheric Geothermics - Worldwide Heat Flow Density Studies. Emphasis is laid on the interrelations between lithospheric structure and local heat flow fields.

Download or read book TERRESTRIAL HEAT FLOW IN EAST AND SOUTHERN AFRICA AND THE THERMAL STRUCTURE OF PRECAMBRIAN LITHOSPHERE TANZANIA ZAMBIA ZIMBABWE written by ANDREW ARNOLD NYBLADE and published by . This book was released on 1992 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: robust because surface heat flow appears to be insensitive to the details of how mantle heat is delivered to the base of the lithosphere.

Download or read book Lithosphere Dynamics and Sedimentary Basins The Arabian Plate and Analogues written by Khalid Al Hosani and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will constitute the proceedings of the ILP Workshop held in Abu Dhabi in December 2009. It will include a reprint of the 11 papers published in the December 2010 issue of the AJGS, together with 11 other original papers.

Download or read book Lithosphere Dynamics and Sedimentary Basins of the Arabian Plate and Surrounding Areas written by François Roure and published by Springer. This book was released on 2016-11-21 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the links between deep earth (mantle) and shallow processes in areas of active tectonics in the Arabian Plate and Surrounding Areas. It also provides key information for energy resources in these areas. The book is a compilation of selected papers from the Task Force of the International Lithosphere Program (ILP). It comprises a set of research studies from the Middle East, North Africa and the Mediterranean domain focusing on (1) the architecture, geodynamic evolution and modelling of the Red Sea rift system and its surroundings, and tectonics and sedimentation in the Gulf of Corinth, (2) the crustal architecture and georesources of the North Algerian Offshore, (3) Reservoirs, aquifers and fluid transfers in Saudi Basins, Petroleum systems and salt tectonics in Yemen and (4) Cretaceous-Eocene foreland inversions in Saudi Arabia.

Download or read book Terrestrial heat flow and lithosphere structure written by Vladimír Čermák and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Signatures of Heat Transfer Processes in the Earth s Crust written by Christoph Clauser and published by Springer. This book was released on 1999-06-21 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the signatures left by geodynamic proceses in the temperature field of the Earth's crust. First, it introduces briefly the established, indirect methods for interpreting the present termperature field and methods for reconstructing the thermal fields of the geological past. Then the spatial and temporal scales that are relevant for heat transport processes are described. This problem is discussed both theoretically and on the basis of data from the German Continental Deep Drilling Program (KTB). The climate of the last 200 years and the postglacial warming in central Europe are reconstructed on the basis of two sets of temperature data from shallow and deep boreholes. This book is written for an audience at an advanced undergraduate or graduate level with an understanding of basic physical principles. It avoids particular terminology, and special terms are introduced.

Download or read book Heat Flow and Thermal Regimes of Continental Lithosphere written by European Geophysical Society and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lithospheric Structure of the Western United States and the Tibetan Plateau written by Mohammed Noureddine Beghoul and published by . This book was released on 1991 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Flow Data and Thermal State of the Continental Lithosphere written by Uk Han and published by . This book was released on 1991 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Terrestial Heat Flow and Thermal Structure of the Lithosphere in Southern Africa written by Sanford Ballard and published by . This book was released on 1989 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Flow and Thermal Regimes of Continental Lithosphere written by Niels Balling and published by . This book was released on 1995 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acten m ige und wahrhaffte Humillima Informatio Der Bey einer Allerh chst angeordneten Kayserlichen Hof Commission von dem Handels Stand zu N rnberg eingeklagten Gravaminum und zu Untersuchung derselben provisori in Vorschlag gebrachten Admodiation nebst einer gr ndlichen Widerlegung der von Einem Wohl L blichen Magistrat darwider gemachten Einwendungen In Sachen N rnberg Contr N rnberg written by and published by . This book was released on 1733 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Flow and the Structure of the Lithosphere 4 written by Vladimir Cermák and published by . This book was released on 1998 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Treatise on Geophysics Crust and lithosphere dynamics written by Gerald Schubert and published by . This book was released on 2007 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Treatise on geophysics is the only comprehensive, state-of-the-art, and integrated summary of the present state of geophysics. Offering an array of articles from some of the top scientists around the world, this 11-volume work deals with all major parts of solid-Earth geophysics, including a volume on the terrestrial planets and moons in our Solar System. This major reference work will aid researchers, advanced undergrad and graduate students, as well as professionals in cutting-edge research.

Download or read book Structure of the Lithosphere and Upper Mantle Across the Arabian Peninsula written by and published by . This book was released on 2007 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of modern broadband (BB) waveform data allows for the inference of seismic velocity structure of the crust and upper mantle using a variety of techniques. This presentation will report inferences of seismic structure of the Arabian Plate using BB data from various networks. Most data were recorded by the Saudi Arabian National Digital Seismic Network (SANDSN) which consists of 38 (26 BB, 11 SP) stations, mostly located on the Arabian Shield. Additional data were taken from the 1995-7 Saudi Arabian IRIS-PASSCAL Deployment (9 BB stations) and other stations across the Peninsula. Crustal structure, inferred from teleseismic P-wave receiver functions, reveals thicker crust in the Arabian Platform (40-45 km) and the interior of the Arabian Shield (35-40 km) and thinner crust along the Red Sea coast. Lithospheric thickness inferred from teleseismic S-wave receiver functions reveals very thin lithosphere (40-80 km) along the Red Sea coast which thickens rapidly toward the interior of the Arabian Shield (100-120 km). We also observe a step of 20-40 km in lithospheric thickness across the Shield-Platform boundary. Seismic velocity structure of the upper mantle inferred from teleseismic P- and S-wave travel time tomography reveals large differences between the Shield and Platform, with the Shield being underlain by slower velocities, ±3% for P-waves and ±6% for S-waves. Seismic anisotropy was inferred from shear-wave splitting, using teleseismic SKS waveforms. Results reveal a splitting time of approximately 1.4 seconds, with the fast axis slightly east of north. The shear-wave splitting results are consistent across the Peninsula, with a slight clockwise rotation parallel for stations near the Gulf of Aqaba. In summary, these results allow us to make several conclusions about the tectonic evolution and current state of the Arabian Plate. Lithospheric thickness implies that thinning near the Red Sea has accompanied the rupturing of the Arabian-Nubian continental lithosphere. The step in the lithospheric thickness across the Shield-Platform boundary likely reveals a pre-existing difference in the lithospheric structure prior to accretion of the terranes composing the eastern Arabian Shield. Tomographic imaging of upper mantle velocities implies a single large-scale thermal anomaly underlies the Arabian Shield and is associated with Cenozoic uplift and volcanism.