Download or read book Investigating an Apparent Structural High in Seismic Data in North Terre Haute Indiana Through First arrival Traveltime Tomography and Gravity Analysis written by Daniel Grant Koehl and published by . This book was released on 2019 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study focuses on northern Terre Haute, Indiana, where seven 2D seismic reflection time sections were collected by CountryMark and donated to Wright State University. Geologically, the area is on the eastern margin of the Illinois Basin. Two of these seismic lines display significant relief along a continuous, high-amplitude horizon approximately 180 milliseconds in two-way traveltime depth. This horizon was previously interpreted by CountryMark to be a Silurian reef core of the type common in this region of the Illinois Basin; however, other seismic lines within the data set display no relief. Furthermore, borehole logs within the area show no such relief at the equivalent depth of around 1700 feet. Therefore, the apparent structural high is an artifact within the two seismic lines, and can be called velocity pull-up. Various analyses were conducted to examine the causes of this velocity pull-up. The near-surface, within this region, contains many surfaces that may give rise to a velocity pull-up, including (1) the layer of weathered Pennsylvanian bedrock; (2) the Mississippian-Pennsylvanian Unconformity; and (3) an unconformity within Pennsylvanian section. It is possible that each of these surfaces could have enough relief to induce the observed velocity pull-up, and these possibilities were evaluated utilizing a combined analysis of Bouguer gravity, first-arrival traveltime tomography, passive seismic, and well log correlation. These multiple analyses show there is no Silurian reef core but a more complex velocity-inducing feature from a combination of the Mississippian-Pennsylvanian Unconformity and a shallower paleovalley fill.
Download or read book Pre Mt Simon Seismic Sequences Below West Central Indiana written by Andrew Michael Parent and published by . This book was released on 2017 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constraining the composition, structure, and origin of basement provinces, deep assemblages of Precambrian rocks, is largely dependent on deep boreholes and geophysical techniques. This is especially true for the eastern U.S. midcontinent. Here, I employ regional 2-D seismic reflection, Bouguer gravity, and aeromagnetic data to interpret the upper crust below west-central Indiana. Seismic reflection data were donated to Wright State University in 2015. Geopotential data are available through the USGS and affiliates. These geophysical data, together, are analyzed in a regional geologic context.Three distinct seismic stratigraphic sequences are observed on 2-D sections. The first, uppermost sequence, typified by continuous, high-amplitude, stratified reflections is constrained by boreholes and previous seismic investigations as the Paleozoic sedimentary sequence that masks the midcontinent basement. The Cambrian Mt. Simon Sandstone constitutes the base of this unit, which is underlain by the second, poorly reflective, westward-thinning sequence. Weak internal reflections create an apparent angular unconformity with the base of the Mt. Simon and appear concordant with reflections of the basal seismic package. This unit, termed the Wilbur sequence, compares well with the seismic character of the Middle Run Formation of western Ohio and Kentucky. A third, well-reflective sequence is observed at the base of the record. Stratal geometries, such as onlap and stratigraphic terminations, are locally observable on regional east-west profiles. A positive Bouguer anomaly appears associated with the apparent structural closure of this sequence, herein termed the Quincy, below northeast Owen County. Geophysical signatures of the Quincy suggest a depositional origin, composed of low-magnetic igneous rocks (rhyolites) sourced from midcontinent volcanic centers and clastic sediments from collapsed calderas.These data facilitate two alternative hypotheses. The pattern seen in west-central Indiana (Wilbur over Quincy) may correlate with that seen below southwest Ohio (Middle Run over reflective basement). This would suggest that the Middle Run was deposited over a larger regional area than early syn-rift models suggested, fortifying recent interpretations that the Middle Run represents the foreland basin sedimentary package generated by the Grenville Orogeny. It is possible, conversely, that both Wilbur and Quincy sequences are sedimentary and/or volcanic units associated with the Eastern Granite-Rhyolite Province and pre-date the Middle Run entirely. Both models suggest contrasting yet significant tectonic settings of the pre-Mt. Simon U.S. midcontinent.
Download or read book Advances in Research in Karst Media written by Francisco Carrasco and published by Springer Science & Business Media. This book was released on 2010-08-16 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Malaga Symposia Series provides an international forum for scientific debate on the progress made in research into karst environments. The 2010 meeting of the 4th International ISKA presents 80 papers in four key areas: karst hydrogeology and investigations, karst landscape and ecosystems, human interaction with karst environments, and engineering geology in karst areas. This book will be a useful edition to the libraries of consultants, scientists, lecturers, and policy makers concerned with the special issues of karst terrains.
Download or read book Riverbank Filtration written by C. Ray and published by Springer Science & Business Media. This book was released on 2006-03-01 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chittaranjan Ray, Ph. D. , P. E. University of Hawaii at Mãnoa Honolulu, Hawaii, United States Jürgen Schubert, M. Sc. Stadtwerke Düsseldorf AG Düsseldorf, Germany Ronald B. Linsky National Water Research Institute Fountain Valley, California, United States Gina Melin National Water Research Institute Fountain Valley, California, United States 1. What is Riverbank Filtration? The purpose ofthis book is to show that riverbank filtration (RBF) isa low-cost and efficient alternative water treatment for drinking-water applications. There are two immediate benefits to the increased use of RBF: Minimized need for adding chemicals like disinfectants and coagulants to surface water to control pathogens. Decreased costs to the community without increased risk to human health. Butwhat,exactly, isRBF? In humid regions, river water naturally percolates through the ground into aquifers (which are layers of sand and gravel that contain water underground) during high-flow conditions. In arid regions, most rivers lose flow, and the percolating water passes through soil and aquifer material until it reaches the water table. During these percolation processes, potential contaminants present in river water are filtered and attenuated. If there are no other contaminants present in the aquifer or ifthe respective contaminants are present at lower concentrations, the quality of water in the aquifer can be ofhigher quality than that found in theriver. In RBF, production wells — which are placed near the banks ofrivers —pump large quantities ofwater.
Download or read book Soft Target Protection written by Ladislav Hofreiter and published by Springer. This book was released on 2021-08-26 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume includes articles presented during the Advanced Research Workshop on Soft Target Protection. The book presents important topics related to the protection of vulnerable objects and spaces, called Soft Targets. The chapters published in this book are thematically assigned to the blocks as follows: Theoretical aspect of soft target protection; Blast resistance of soft targets; Counter terrorism; Technical and technological solutions for soft target protection; Scheme and organizational measures; Blast protection and Forces for soft target protection. In this book, the reader will find a wealth of information about the theoretical background for designing protection of soft targets, as well as the specifics of protecting objects in armed conflict areas. New methods and procedures applicable to the soft target protection are described.
Download or read book Exploring the Earth s Crust written by C. Prodehl and published by Geological Society of America. This book was released on 2012 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume contains a comprehensive, worldwide history of seismological studies of the Earth's crust using controlled sources from 1850 to 2005. Essentially all major seismic projects on land and the most important oceanic projects are covered. The time period 1850 to 1939 is presented as a general synthesis, and from 1940 onward the history and results are presented in separate chapters for each decade, with the material organized by geographical region. Each chapter highlights the major advances achieved during that decade in terms of data acquisition, processing technology, and interpretation methods. For all major seismic projects, the authors provide specific details on field observations, interpreted crustal cross sections, and key references. They conclude with global and continental-scale maps of all field measurements and interpreted Moho contours. An accompanying DVD contains important out-of-print publications and an extensive collection of controlled-source data, location maps, and crustal cross sections."--Publisher's description.
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 Einstein s Jury written by Jeffrey Crelinsten and published by Princeton University Press. This book was released on 2016-05-31 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Einstein's Jury is the dramatic story of how astronomers in Germany, England, and America competed to test Einstein's developing theory of relativity. Weaving a rich narrative based on extensive archival research, Jeffrey Crelinsten shows how these early scientific debates shaped cultural attitudes we hold today. The book examines Einstein's theory of general relativity through the eyes of astronomers, many of whom were not convinced of the legitimacy of Einstein's startling breakthrough. These were individuals with international reputations to uphold and benefactors and shareholders to please, yet few of them understood the new theory coming from the pen of Germany's up-and-coming theoretical physicist, Albert Einstein. Some tried to test his theory early in its development but got no results. Others--through toil and hardship, great expense, and perseverance--concluded that it was wrong. A tale of international competition and intrigue, Einstein's Jury brims with detail gleaned from Crelinsten's far-reaching inquiry into the history and development of relativity. Crelinsten concludes that the well-known British eclipse expedition of 1919 that made Einstein famous had less to do with the scientific acceptance of his theory than with his burgeoning public fame. It was not until the 1920s, when the center of gravity of astronomy and physics shifted from Europe to America, that the work of prestigious American observatories legitimized Einstein's work. As Crelinsten so expertly shows, the glow that now surrounds the famous scientist had its beginnings in these early debates among professional scientists working in the glare of the public spotlight.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer. This book was released on 1976 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis· seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac· tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 20 (thesis year 1975) a total of 10,374 theses titles from 28 Canadian and 239 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 20 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Download or read book Guidebook of Applied Fluvial Geomorphology written by David A Sear and published by Thomas Telford Limited. This book was released on 2009-11-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors use their extensive experience gained through fieldwork, analysis, and input to the design process to provide a thorough understanding of geomorphology in the river environment and describe effective ways to incorporate geomorphological science into river engineering and management.
Download or read book Fractals in Geophysics written by SCHOLZ and published by Birkhäuser. This book was released on 2013-11-22 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 131 (1989), No. 1
Download or read book The Mojave Sonora Megashear Hypothesis written by Thomas Howard Anderson and published by Geological Society of America. This book was released on 2005-01-01 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Black Box of Schooling written by Sjaak Braster and published by P.I.E-Peter Lang S.A., Editions Scientifiques Internationales. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about the classroom, the most important meeting place for teachers and pupils in an education building. Our knowledge, however, about what happens inside this space is limited. In many respects the classroom is still the black box of the educational system. To open up this box, this volume brings together scholars from the disciplines of Art, Architecture, History, Pedagogy and Sociology. They present a wide variety of new perspectives, methodologies and sources for studying classrooms. The book examines images and representations of classrooms (photographs, paintings and pictures on school walls), writings and documents inside the classroom (school exercise books, teachers' log books and observer reports), memories and personal experiences of classrooms (egodocuments from teachers and pupils, and oral history interviews), the space and design of classrooms (architecture, school murals and the transformation of space), and material objects in the classroom (school furniture, primers for reading and school wall charts). The essays are illustrated with a unique collection of more than fifty photographs of classrooms in Europe.
Download or read book Handbook of Signal Processing in Acoustics written by and published by Springer Science & Business Media. This book was released on 2008 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Appalachian Ouachita Orogen in the United States written by Robert D. Hatcher, Jr. and published by Geological Society of America. This book was released on 1989 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Big Data in Astronomy written by Linghe Kong and published by Elsevier. This book was released on 2020-06-13 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Big Data in Radio Astronomy: Scientific Data Processing for Advanced Radio Telescopes provides the latest research developments in big data methods and techniques for radio astronomy. Providing examples from such projects as the Square Kilometer Array (SKA), the world's largest radio telescope that generates over an Exabyte of data every day, the book offers solutions for coping with the challenges and opportunities presented by the exponential growth of astronomical data. Presenting state-of-the-art results and research, this book is a timely reference for both practitioners and researchers working in radio astronomy, as well as students looking for a basic understanding of big data in astronomy. - Bridges the gap between radio astronomy and computer science - Includes coverage of the observation lifecycle as well as data collection, processing and analysis - Presents state-of-the-art research and techniques in big data related to radio astronomy - Utilizes real-world examples, such as Square Kilometer Array (SKA) and Five-hundred-meter Aperture Spherical radio Telescope (FAST)
Download or read book Geologic Evolution of the Continental Margin of the Gulf of Tehuantepec in Southwestern Mexico written by Luis Antonio Sanchez-Barreda and published by . This book was released on 1981 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The area evaluated in this study consists of that part of the southwestern continental margin of Mexico situated within the Gulf of Tehuantepec. Through the use of surface geology, paleomagnetic data, gravity surveys, and continuous seismic reflection profiles, the evolution of the Gulf of Tehuantepec has been detailed as a progression from an open ocean basin to a more restrictef basinal setting.
