ALBERT

Description / Table of Contents: PREFACE Seismic imaging is the process through which seismograms recorded on the Earth's surface are mapped into representations of its interior properties. Imaging methods are nowadays applied to a broad range of seismic observations: from nearsurface environmental studies, to oil and gas exploration, even to long-period earthquake seismology. The characteristic length scales of the features imaged by these techniques range over many orders of magnitude. Yet there is a common body of physical theory and mathematical techniques which underlies all these methods. The focus of this book is the imaging of reflection seismic data from controlled sources. At the frequencies typical of such experiments, the Earth is, to a first approximation, a vertically stratified medium. These stratifications have resulted from the slow, constant deposition of sediments, sands, ash, and so on. Due to compaction, erosion, change of sea level, and many other factors, the geologic, and hence elastic, character of these layers varies with depth and age. One has only to look at an exposed sedimentary cross section to be impressed by the fact that these changes can occur over such short distances that the properties themselves are effectively discontinuous relative to the seismic wavelength. These layers can vary in thickness from less than a meter to many hundreds of meters. As a result, when the Earth's surface is excited with some source of seismic energy and the response recorded on seismometers, we will see a complicated zoo of elastic wave types: reflections from the discontinuities in material properties, multiple reflections within the layers, guided waves, interface waves which propagate along the boundary between two different layers, surface waves which are exponentially attenuated with depth, waves which are refracted by continuous changes in material properties, and others. The character of these seismic waves allows seismologists to make inferences about the nature of the subsurface geology. Because of tectonic and other dynamic forces at work in the Earth, this first-order view of the subsurface geology as a layer cake must often be modified to take into account bent and fractured strata. Extreme deformations can occur in processes such as mountain building. Under the influence of great heat and stress, some rocks exhibit a taffy-like consistency and can be bent into exotic shapes without breaking, while others become severely fractured. In marine environments, less dense salt can be overlain by more dense sediments; as the salt rises under its own buoyancy, it pushes the overburden out of the way, severely deforming originally flat layers. Further, even on the relatively localized scale of exploration seismology, there may be significant lateral variations in material properties. For example, if we look at the sediments carried downstream by a river, it isclear that lighter particles will be carried further, while bigger ones will be deposited first; flows near the center of the channel will be faster than the flow on the verge. This gives rise to significant variation is the density and porosity of a given sedimentary formation as a function of just how the sediments were deposited. Taking all these effects into account, seismic waves propagating in the Earth will be refracted, reflected and diffracted. In order to be able to image the Earth, to see through the complicated distorting lens that its heterogeneous subsurface presents to us, in other words, to be able to solve the inverse scattering problem, we need to be able to undo all of these wave propagation effects. In a nutshell, that is the goal of imaging: to transform a suite of seismograms recorded at the surface of the Earth into a depth section, i.e., a spatial image of some property of the Earth (usually wave speed or impedance). There are two main types of spatial variations of the Earth's properties. There are the smooth changes (smooth meaning possessing spatial wavelengths which are long compared to seismic wavelengths) associated with processes such as compaction. These gradual variations cause ray paths to be gently turned or refracted. On the other hand, there are the sharp changes (short spatial wavelength), mostly in the vertical direction, which we associate with changes in lithology and, to a lesser extent, fracturing. These short wavelength features give rise to the reflections and diffractions we see on seismic sections. If the Earth were only smoothly varying, with no discontinuities, then we would not see any events at all in exploration seismology because the distances between the sources and receivers are not often large enough for rays to turn upward and be recorded. This means that to first order, reflection seismology is sensitive primarily to the short spatial wavelength features in the velocity model. We usually assume that we know the smoothly varying part of the velocity model (somehow) and use an imaging algorithm to find the discontinuities. The earliest forms of imaging involved moving, literally migrating, events around seismic time sections by manual or mechanical means. Later, these manual migration methods were replaced by computer-oriented methods which took into account, to varying degrees, the physics of wave propagation and scattering. It is now apparent that all accurate imaging methods can be viewed essentially as linearized inversions of the wave equation, whether in terms of Fourier integral operators or direct gradient-based optimization of a waveform misfit function. The implicit caveat hanging on the word "essentially" in the last sentence is this: people in the exploration community who practice migration are usually not able to obtain or preserve the true amplitudes of the data. As a result, attempts to interpret subtle changes in reflector strength, as opposed to reflector position, usually run afoul of one or more approximations made in the sequence of processing steps that makes up a migration (trace equalization, gaining, deconvolution, etc.) On the other hand, if we had true amplitude data, that is, if the samples recorded on the seismogram really were proportional to the velocity of the piece of Earth to which the geophone were attached, then we could make quantitative statements about how spatial variations in reflector strength are related to changes in geological properties. The distinction here is the distinction between imaging reflectors, on the one hand, and doing a true inverse problem for the subsurface properties on the other. Until quite recently the exploration community was exclusively concerned with the former, and today the word "migration" almost always refers to the imaging problem. The more sophisticated view of imaging as an inverse problem is gradually making its way into the production software of oil and gas exploration companies, since careful treatment of amplitudes is often crucial in making decisions on subtle lithologic plays (amplitude versus offset or AVO) and in resolving the chaotic wave propagation effects of complex structures. When studying migration methods, the student is faced with a bewildering assortment of algorithms, based upon diverse physical approximations. What sort of velocity model can be used: constant wave speed v? v(x), v(x, z), v(x, y, z)? Gentle dips? Steep dips? Shall we attempt to use turning or refracted rays? Take into account mode converted arrivals? 2D (two dimensions)? 3D? Prestack? Poststack? If poststack, how does one effect one-way wave propagation, given that stacking attenuates multiple reflections? What domain shall we use? Time-space? Time-wave number? Frequency-space? Frequency-wave number? Do we want to image the entire dataset or just some part of it? Are we just trying to refine a crude velocity model or are we attempting to resolve an important feature with high resolution? It is possible to imagine imaging algorithms that would work under the most demanding of these assumptions, but they would be highly inefficient when one of the simpler physical models pertains. And since all of these situations arise at one time or another, it is necessary to look at a variety of migration algorithms in daily use. Given the hundreds of papers that have been published in the past 15 years, to do a reasonably comprehensive job of presenting all the different imaging algorithms would require a book many times the length of this one. This was not my goal in any case. I have tried to emphasize the fundamental physical and mathematical ideas of imaging rather than the details of particular applications. I hope that rather than appearing as a disparate bag of tricks, seismic imaging will be seen as a coherent body of knowledge, much as optics is...

Description / Table of Contents: DEKORP, the German continental reflection seismic program, was the major focus of deep seismic research in Germany in the 1980s and 1990s. The seismic sections provided fundamental new insight into deep geological structure of the European continent and the dynamics of continental formation. They formed the basis for worldwide comparative studies of orogenic structure. The complicated signature of the reflections from the deep crust indicated that new processing and interpretation techniques must be considered to better image the crystalline crust. Results of these efforts, including pre-stack migration, 3-D imaging, shear waves and seismic anisotropy, are presented in this special volume. In part, the articles open the perspective to new and future research. In part, they document research activity triggered by technical and interpretational questions raised by DEKORP field work and profiling results. Many of the presented methods can find immediate application in industrial seismic prospecting.

Description / Table of Contents: Variations in seismic Q are sensitive to a much greater extent than are seismic velocity variations on factors such as temperature, fluid content, and the movement of solid state defects in the earth. For that reason an understanding of Q and its variation with position in the earth and with time should provide information in earth's tectonic evolution, as well as on aspects of its internal structure. Progress in understanding Q has suffered from difficulty in obtaining reliable amplitude data at global and temporary stations. Moreover, laboratory determinations of Q, until recently, were most often made at frequencies much higher than those measured by seismologists for waves propagating through the earth. Recent advances in seismic station distribution and quality, as well as in methodology at both high and low fequencies, have greatly improved the quality of observational data available to seismologists from global stations. Concurrent advances have been made in measuring Q using laboratory samples at frequencies that pertain to the earth and in theoretical understanding of seismic wave attenuation. Papers of this volume present new information on Q in the earth from several perspectives: methodology, results from global and regional observations of both body and surface waves, laboratory measurements, and theoretical understanding. The editors believe that we have reached a new threshold in Q studies and that advances in data quality and methodology will spur increased interest in this difficult, but interesting field.

Description / Table of Contents: This volume contains twenty-five research papers on seismicity patterns, their interpretation and their possible relevance to learning how to predict earthquakes. The interpretation of seismicity patterns has become somewhat controversial. Some researchers present case histories suggesting that earthquakes may be predicted by increased seismic moment release or seismic quiescence and, in general, by understanding the processes of self-organized criticality. Others deny these hypotheses. Although the problem of recognizing foreshocks in real time remains unsolved, new properties of microearthquakes as a function of time are coming to light. Computer modeling of seismicity also is advancing in sophistication and relevance. Surprisingly, b-values seem to hold substantial information about varying local conditions of earthquake generation.

Description / Table of Contents: Earthquakes in shallow subduction zones account for the greatest part of seismic energy release in the Earth and often cause significant damage; in some cases they are accompanied by devastating tsunamis. Understanding the physics of seismogenic and tsunamigenic processes in such zones continues to be a challenging focus of ongoing research. The seismologic and geodetic work reported in this volume highlights the recent advances made toward quantifying and understandig the role of shallow plate coupling in the earthquake generation process. The relation between regional seismotectonics, features in the downgoing plate, and the slip distribution in earthquakes are examined for recent and great historical events. In addition to papers reporting new results, review articles on tsunami and tsunamigenic earthquakes and depth dependent plate interface properties are presented. These observational results, along with complementary laboratory and theoretical studies, can assist in assessing the seismic potential of a given region.

Description / Table of Contents: Adrian Hartley and Jeremy Prosser: Characterization of deep marine clastic systems / Geological Society, London, Special Publications, 94:1-3, doi:10.1144/GSL.SP.1995.094.01.01 --- R. Anderton: Sequences, cycles and other nonsense: are submarine fan models any use in reservoir geology? / Geological Society, London, Special Publications, 94:5-11, doi:10.1144/GSL.SP.1995.094.01.02 --- Shunji Ouchi, Frank G. Ethridge, Edward W. James, and S. A. Schumm: Experimental study of subaqueous fan development / Geological Society, London, Special Publications, 94:13-29, doi:10.1144/GSL.SP.1995.094.01.03 --- Ben Kneller: Beyond the turbidite paradigm: physical models for deposition of turbidites and their implications for reservoir prediction / Geological Society, London, Special Publications, 94:31-49, doi:10.1144/GSL.SP.1995.094.01.04 --- Simon R. Hughes, Jan Alexander, and Tim H. Druitt: Anisotropic grain fabric: volcanic and laboratory analogues for turbidites / Geological Society, London, Special Publications, 94:51-62, doi:10.1144/GSL.SP.1995.094.01.05 --- Robert J. Nichols: The liquification and remobilization of sandy sediments / Geological Society, London, Special Publications, 94:63-76, doi:10.1144/GSL.SP.1995.094.01.06 --- R. J. Dixon, K. Schofield, R. Anderton, A. D. Reynolds, R. W. S. Alexander, M. C. Williams, and K. G. Davies: Sandstone diapirism and clastic intrusion in the Tertiary submarine fans of the Bruce-Beryl Embayment, Quadrant 9, UKCS / Geological Society, London, Special Publications, 94:77-94, doi:10.1144/GSL.SP.1995.094.01.07 --- Candace M. Brooke, Tim J. Trimble, and Tom A. Mackay: Mounded shallow gas sands from the Quaternary of the North Sea: analogues for the formation of sand mounds in deep water Tertiary sediments? / Geological Society, London, Special Publications, 94:95-101, doi:10.1144/GSL.SP.1995.094.01.08 --- J. C. Pauley: Sandstone megabeds from the Tertiary of the North Sea / Geological Society, London, Special Publications, 94:103-114, doi:10.1144/GSL.SP.1995.094.01.09 --- Bryan T. Cronin: Structurally-controlled deep sea channel courses: examples from the Miocene of southeast Spain and the Alboran Sea, southwest Mediterranean / Geological Society, London, Special Publications, 94:115-135, doi:10.1144/GSL.SP.1995.094.01.10 --- J. R. Browne and D. Pirrie: Sediment dispersal patterns in a deep marine back-arc basin: evidence from heavy mineral provenance studies / Geological Society, London, Special Publications, 94:137-154, doi:10.1144/GSL.SP.1995.094.01.11 --- Ivo Verstralen, Adrian Hartley, and Andrew Hurst: The sedimentological record of a late Jurassic transgression: Rona Member (Kimmeridge Clay Formation equivalent), West Shetland Basin, UKCS / Geological Society, London, Special Publications, 94:155-176, doi:10.1144/GSL.SP.1995.094.01.12 --- Roseleen S. Watson, Nigel H. Trewin, and Anthony E. Fallick: The formation of carbonate cements in the Forth and Balmoral Fields, northern North Sea: a case for biodegradation, carbonate cementation and oil leakage during early burial / Geological Society, London, Special Publications, 94:177-200, doi:10.1144/GSL.SP.1995.094.01.13 --- D. J. Prosser, M. E. McKeever, A. J. C. Hogg, and A. Hurst: Permeability heterogeneity within massive Jurassic submarine fan sandstones from the Miller Field, northern North Sea, UK / Geological Society, London, Special Publications, 94:201-219, doi:10.1144/GSL.SP.1995.094.01.14 --- Melissa Johansson and Dorrik A. V. Stow: A classification scheme for shale clasts in deep water sandstones / Geological Society, London, Special Publications, 94:221-241, doi:10.1144/GSL.SP.1995.094.01.15

Description / Table of Contents: P. F. Croker and P. M. Shannon: The petroleum geology of Ireland’s offshore basins: introduction / Geological Society, London, Special Publications, 93:1-8, doi:10.1144/GSL.SP.1995.093.01.01 --- P. W. Readman, B. M. O’Reilly, J. W. F. Edwards, and M. J. Sankey: A gravity map of Ireland and surrounding waters / Geological Society, London, Special Publications, 93:9-16, doi:10.1144/GSL.SP.1995.093.01.02 --- Rob Shelton: Mesozoic basin evolution of the North Channel: preliminary results / Geological Society, London, Special Publications, 93:17-20, doi:10.1144/GSL.SP.1995.093.01.03 --- Steven Fitzsimons and John Parnell: Diagenetic history and reservoir potential of Permo-Triassic sandstones in the Rathlin Basin / Geological Society, London, Special Publications, 93:21-35, doi:10.1144/GSL.SP.1995.093.01.04 --- James P. Armstrong, Victor A. A. D’Elia, and Rita Löberg: Holywell Shale: a potential source of hydrocarbons in the East Irish Sea / Geological Society, London, Special Publications, 93:37-38, doi:10.1144/GSL.SP.1995.093.01.05 --- Stephen Trueblood, Chris Bryan, and Steve Pickering: The Douglas oil field and its implications for exploration on the Irish Continental Shelf / Geological Society, London, Special Publications, 93:39-40, doi:10.1144/GSL.SP.1995.093.01.06 --- Peter F. Croker: Shallow gas accumulation and migration in the western Irish Sea / Geological Society, London, Special Publications, 93:41-58, doi:10.1144/GSL.SP.1995.093.01.07 --- Steven J. Maddox, Richard Blow, and Martin Hardman: Hydrocarbon prospectivity of the Central Irish Sea Basin with reference to Block 42/12, offshore Ireland / Geological Society, London, Special Publications, 93:59-77, doi:10.1144/GSL.SP.1995.093.01.08 --- P. S. Griffiths: Predictive model for the development and distribution of Triassic reservoir sands offshore southeast Ireland, based on seismic sequence geometries at the Variscan unconformity / Geological Society, London, Special Publications, 93:79-80, doi:10.1144/GSL.SP.1995.093.01.09 --- F. W. Musgrove, L. M. Murdoch, and T. Lenehan: The Variscan fold-thrust belt of southeast Ireland and its control on early Mesozoic extension and deposition: a method to predict the Sherwood Sandstone / Geological Society, London, Special Publications, 93:81-100, doi:10.1144/GSL.SP.1995.093.01.10 --- Philip Rowell: Tectono-stratigraphy of the North Celtic Sea Basin / Geological Society, London, Special Publications, 93:101-137, doi:10.1144/GSL.SP.1995.093.01.11 --- Nuala P. Ewins and Patrick M. Shannon: Sedimentology and diagenesis of the Jurassic and Cretaceous of the North Celtic Sea and Fastnet Basins / Geological Society, London, Special Publications, 93:139-169, doi:10.1144/GSL.SP.1995.093.01.12 --- L. G. Kessler II and Scott D. Sachs: Depositional setting and sequence stratigraphic implications of the Upper Sinemurian (Lower Jurassic) sandstone interval, North Celtic Sea/St George’s Channel Basins, offshore Ireland / Geological Society, London, Special Publications, 93:171-192, doi:10.1144/GSL.SP.1995.093.01.13 --- N. J. Murphy, M. J. Sauer, and J. P. Armstrong: Toarcian source rock potential in the North Celtic Sea Basin, offshore Ireland / Geological Society, London, Special Publications, 93:193-207, doi:10.1144/GSL.SP.1995.093.01.14 --- V. N. D. Caston: The Helvick oil accumulation, Block 49/9, North Celtic Sea Basin / Geological Society, London, Special Publications, 93:209-225, doi:10.1144/GSL.SP.1995.093.01.15 --- D. R. Taber, M. K. Vickers, and R. D. Winn, Jr: The definition of the Albian ‘A’ Sand reservoir fairway and aspects of associated gas accumulations in the North Celtic Sea Basin / Geological Society, London, Special Publications, 93:227-244, doi:10.1144/GSL.SP.1995.093.01.16 --- Adrian Hartley: Sedimentology of the Cretaceous Greensand, Quadrants 48 and 49, North Celtic Sea Basin: a progradational shoreface deposit / Geological Society, London, Special Publications, 93:245-257, doi:10.1144/GSL.SP.1995.093.01.17 --- M. V. Murray: Development of small gas fields in the Kinsale Head area / Geological Society, London, Special Publications, 93:259-260, doi:10.1144/GSL.SP.1995.093.01.18 --- Tim J. Howell and Paul Griffiths: A study of the hydrocarbon distribution and Lower Cretaceous Greensand prospectivity in Blocks 48/15, 48/17, 48/18 and 48/19, North Celtic Sea Basin / Geological Society, London, Special Publications, 93:261-275, doi:10.1144/GSL.SP.1995.093.01.19 --- John E. Craven: The tectonic evolution, stratigraphy and petroleum potential of the Mizen Basin, southwest Celtic Sea / Geological Society, London, Special Publications, 93:277, doi:10.1144/GSL.SP.1995.093.01.20 --- C. Smith: Evolution of the Cockburn Basin: implications for the structural development of the Celtic Sea basins / Geological Society, London, Special Publications, 93:279-295, doi:10.1144/GSL.SP.1995.093.01.21 --- L. M. Murdoch, F. W. Musgrove, and J. S. Perry: Tertiary uplift and inversion history in the North Celtic Sea Basin and its influence on source rock maturity / Geological Society, London, Special Publications, 93:297-319, doi:10.1144/GSL.SP.1995.093.01.22 --- Robert J. Menpes and Richard R. Hillis: Quantification of Tertiary exhumation from sonic velocity data, Celtic Sea/Southwestern Approaches / Geological Society, London, Special Publications, 93:321-322, doi:10.1144/GSL.SP.1995.093.01.23 --- N. A. McMahon and J. R. Underhill: The regional stratigraphy of the southwest United Kingdom and adjacent offshore areas with particular reference to the major intra-Cretaceous unconformity / Geological Society, London, Special Publications, 93:323-325, doi:10.1144/GSL.SP.1995.093.01.24 --- Peter F. Croker: The Clare Basin: a geological and geophysical outline / Geological Society, London, Special Publications, 93:327-339, doi:10.1144/GSL.SP.1995.093.01.25 --- D. O’Driscoll, B. B. Holcombe, P. T. Rose, and D. J. Jones: Cretaceous and Tertiary unconformities in the Atlantic margin basins / Geological Society, London, Special Publications, 93:341, doi:10.1144/GSL.SP.1995.093.01.26 --- T. C. Earls: Potential for development of the Connemara field, Block 26/28 / Geological Society, London, Special Publications, 93:343, doi:10.1144/GSL.SP.1995.093.01.27 --- J. G. Moore and P. M. Shannon: The Cretaceous succession in the Porcupine Basin, offshore Ireland: facies distribution and hydrocarbon potential / Geological Society, London, Special Publications, 93:345-370, doi:10.1144/GSL.SP.1995.093.01.28 --- T. McCann, P. M. Shannon, and J. G. Moore: Fault styles in the Porcupine Basin, offshore Ireland: tectonic and sedimentary controls / Geological Society, London, Special Publications, 93:371-383, doi:10.1144/GSL.SP.1995.093.01.29 --- I. C. Scotchman and J. R. W. Thomas: Maturity and hydrocarbon generation in the Slyne Trough, northwest Ireland / Geological Society, London, Special Publications, 93:385-411, doi:10.1144/GSL.SP.1995.093.01.30 --- Brian M. O’Reilly, Franz Hauser, A. W. Brian Jacob, Pat M. Shannon, Jannis Makris, and Ulrike Vogt: The Erris and eastern Rockall Troughs: structural and sedimentological development / Geological Society, London, Special Publications, 93:413-421, doi:10.1144/GSL.SP.1995.093.01.31 --- Richard W. England: Westline: a deep near-normal incidence reflection profile across the Rockall Trough / Geological Society, London, Special Publications, 93:423-427, doi:10.1144/GSL.SP.1995.093.01.32 --- A. W. B. Jacob, P. M. Shannon, J. Makris, F. Hauser, U. Vogt, and B. M. O’Reilly: An overview of the results of the RAPIDS seismic project, North Atlantic / Geological Society, London, Special Publications, 93:429-431, doi:10.1144/GSL.SP.1995.093.01.33 --- J. S. Daly, L. M. Heaman, R. C. Fitzgerald, J. F. Menuge, T. S. Brewer, and A. C. Morton: Age and crustal evolution of crystalline basement in western Ireland and Rockall / Geological Society, London, Special Publications, 93:433-434, doi:10.1144/GSL.SP.1995.093.01.34 --- P. M. Shannon, A. W. B. Jacob, J. Makris, B. O’Reilly, F. Hauser, and U. Vogt: Basin development and petroleum prospectivity of the Rockall and Hatton region / Geological Society, London, Special Publications, 93:435-457, doi:10.1144/GSL.SP.1995.093.01.35 --- Jannis Makris, Knuth Lange, Leo Savostin, and Vladimir Sedov: A wide-angle reflection profile across the Iceland-Faeroe Ridge / Geological Society, London, Special Publications, 93:459-466, doi:10.1144/GSL.SP.1995.093.01.36 --- P. M. Shannon, B. P. J. Williams, and I. K. Sinclair: Tectonic controls on Upper Jurassic to Lower Cretaceous reservoir architecture in the Jeanne d’Arc Basin, with some comparisons from the Porcupine and Moray Firth Basins / Geological Society, London, Special Publications, 93:467-490, doi:10.1144/GSL.SP.1995.093.01.37 --- Appendix: A list of common abbreviations / Geological Society, London, Special Publications, 93:491, doi:10.1144/GSL.SP.1995.093.01.38

Description / Table of Contents: James G. Buchanan and Peter G. Buchanan: Introduction / Geological Society, London, Special Publications, 88:vii-ix, doi:10.1144/GSL.SP.1995.088.01.01 --- Mechanics, Dynamics and Geometry of Basin Inversion --- Richard H. Sibson: Selective fault reactivation during basin inversion: potential for fluid redistribution through fault-valve action / Geological Society, London, Special Publications, 88:3-19, doi:10.1144/GSL.SP.1995.088.01.02 --- James Brodie and Nicky White: The link between sedimentary basin inversion and igneous underplating / Geological Society, London, Special Publications, 88:21-38, doi:10.1144/GSL.SP.1995.088.01.03 --- James D. Lowell: Mechanics of basin inversion from worldwide examples / Geological Society, London, Special Publications, 88:39-57, doi:10.1144/GSL.SP.1995.088.01.04 --- S. D. Knott, A. Beach, A. I. Welbon, and P. J. Brockbank: Basin inversion in the Gulf of Suez: implications for exploration and development in failed rifts / Geological Society, London, Special Publications, 88:59-81, doi:10.1144/GSL.SP.1995.088.01.05 --- Duncan S. Macgregor: Hydrocarbon habitat and classification of inverted rift basins / Geological Society, London, Special Publications, 88:83-93, doi:10.1144/GSL.SP.1995.088.01.06 --- Modelling of Basin Inversion --- K. R. McClay: The geometries and kinematics of inverted fault systems: a review of analogue model studies / Geological Society, London, Special Publications, 88:97-118, doi:10.1144/GSL.SP.1995.088.01.07 --- Gloria Eisenstadt and Martha Oliver Withjack: Estimating inversion: results from clay models / Geological Society, London, Special Publications, 88:119-136, doi:10.1144/GSL.SP.1995.088.01.08 --- J. V. A. Keller and K. R. McClay: 3D sandbox models of positive inversion / Geological Society, London, Special Publications, 88:137-146, doi:10.1144/GSL.SP.1995.088.01.09 --- Recognition and Measurement of Basin Inversion --- Paul F. Green, Ian R. Duddy, and Richard J. Bray: Applications of Thermal History Reconstruction in inverted basins / Geological Society, London, Special Publications, 88:149-165, doi:10.1144/GSL.SP.1995.088.01.10 --- Richard R. Hillis: Regional Tertiary Exhumation in and around the United Kingdom / Geological Society, London, Special Publications, 88:167-190, doi:10.1144/GSL.SP.1995.088.01.11 --- Robert J. Menpes and Richard R. Hillis: Quantification of Tertiary exhumation from sonic velocity data, Celtic Sea/South-Western Approaches / Geological Society, London, Special Publications, 88:191-207, doi:10.1144/GSL.SP.1995.088.01.12 --- Case Studies: Americas --- Miguel A. Uliana, Marcelo E. Arteaga, Leonardo Legarreta, Jorge J. Cerdán, and Gustavo O. Peroni: Inversion structures and hydrocarbon occurrence in Argentina / Geological Society, London, Special Publications, 88:211-233, doi:10.1144/GSL.SP.1995.088.01.13 --- J. F. Homovc, G. A. Conforto, P. A. Lafourcade, and L. A. Chelotti: Fold belt in the San Jorge Basin, Argentina: an example of tectonic inversion / Geological Society, London, Special Publications, 88:235-248, doi:10.1144/GSL.SP.1995.088.01.14 --- Iain K. Sinclair: Transpressional inversion due to episodic rotation of extensional stresses in Jeanne d’Arc Basin, offshore Newfoundland / Geological Society, London, Special Publications, 88:249-271, doi:10.1144/GSL.SP.1995.088.01.15 --- Case Studies: Europe --- D. W. Thomas and M. P. Coward: Late Jurassic-Early Cretaceous inversion of the northern East Shetland Basin, northern North Sea / Geological Society, London, Special Publications, 88:275-306, doi:10.1144/GSL.SP.1995.088.01.16 --- Robert J. Hooper, Leng Siang Goh, and Fiona Dewey: The inversion history of the northeastern margin of the Broad Fourteens Basin / Geological Society, London, Special Publications, 88:307-317, doi:10.1144/GSL.SP.1995.088.01.17 --- Nigel R. Deeks and Stefan A. Thomas: Basin inversion in a strike-slip regime: the Tornquist Zone, Southern Baltic Sea / Geological Society, London, Special Publications, 88:319-338, doi:10.1144/GSL.SP.1995.088.01.18 --- Pascale Huyghe and Jean-Louis Mugnier: A comparison of inverted basins of the Southern North Sea and inverted structures of the external Alps / Geological Society, London, Special Publications, 88:339-353, doi:10.1144/GSL.SP.1995.088.01.19 --- Michal Nemčok, Rod Gayer, and Marios Miliorizos: Structural analysis of the inverted Bristol Channel Basin: implications for the geometry and timing of fracture porosity / Geological Society, London, Special Publications, 88:355-392, doi:10.1144/GSL.SP.1995.088.01.20 --- Chris J. Dart, Ken McClay, and Peter N. Hollings: 3D analysis of inverted extensional fault systems, southern Bristol Channel basin, UK / Geological Society, London, Special Publications, 88:393-413, doi:10.1144/GSL.SP.1995.088.01.21 --- R. M. G. Bond and K. R. McClay: Inversion of a Lower Cretaceous extensional basin, south central Pyrenees, Spain / Geological Society, London, Special Publications, 88:415-431, doi:10.1144/GSL.SP.1995.088.01.22 --- Joan Guimerà, Ángela Alonso, and José Ramón Mas: Inversion of an extensional-ramp basin by a newly formed thrust: the Cameros basin (N. Spain) / Geological Society, London, Special Publications, 88:433-453, doi:10.1144/GSL.SP.1995.088.01.23 --- Case Studies: Asia --- Joseph. J. Lambiase and William P. Bosworth: Structural development and stratigraphy of the Kyokpo Pull-Apart Basin, South Korea and tectonic implications for inverted extensional basins / Geological Society, London, Special Publications, 88:457-471, doi:10.1144/GSL.SP.1995.088.01.24 --- M. A. Samuel, N. A. Harbury, M. E. Jones, and S. J. Matthews: Inversion-controlled uplift of an outer-arc ridge: Nias Island, offshore Sumatra / Geological Society, London, Special Publications, 88:473-492, doi:10.1144/GSL.SP.1995.088.01.25 --- Guang Ming Wang, Mike P. Coward, Wenguang Yuan, Shenshu Liu, and Wenqiang Wang: Fold growth during basin inversion — example from the East China Sea Basin / Geological Society, London, Special Publications, 88:493-522, doi:10.1144/GSL.SP.1995.088.01.26 --- Case Studies: Australasia --- Kevin C. Hill, Kathy A. Hill, Gareth T. Cooper, Andrea J. O’Sullivan, Paul B. O’Sullivan, and M. Jane Richardson: Inversion around the Bass Basin, SE Australia / Geological Society, London, Special Publications, 88:525-547, doi:10.1144/GSL.SP.1995.088.01.27 --- Daniel J. Bishop and Peter G. Buchanan: Development of structurally inverted basins: a case study from the West Coast, South Island, New Zealand / Geological Society, London, Special Publications, 88:549-585, doi:10.1144/GSL.SP.1995.088.01.28 --- Jonathan P. Turner and Steve G. Corbin: Tertiary uplift of a deep rift-sag basin, Cardigan Bay, offshore Wales, UK / Geological Society, London, Special Publications, 88:587, doi:10.1144/GSL.SP.1995.088.01.29

Description / Table of Contents: Neal W. Driscoll, John R. Hogg, Nicholas Christie-Blick, and Garry D. Karner: Extensional tectonics in the Jeanne d’Arc Basin, offshore Newfoundland: implications for the timing of break-up between Grand Banks and Iberia / Geological Society, London, Special Publications, 90:1-28, doi:10.1144/GSL.SP.1995.090.01.01 --- Iain K. Sinclair: Sequence stratigraphic response to Aptian-Albian rifting in conjugate margin basins: a comparison of the Jeanne d’Arc Basin, offshore Newfoundland, and the Porcupine Basin, offshore Ireland / Geological Society, London, Special Publications, 90:29-49, doi:10.1144/GSL.SP.1995.090.01.02 --- C. C. Ebdon, P. J. Granger, H. D. Johnson, and A. M. Evans: Early Tertiary evolution and sequence stratigraphy of the Faeroe-Shetland Basin: implications for hydrocarbon prospectivity / Geological Society, London, Special Publications, 90:51-69, doi:10.1144/GSL.SP.1995.090.01.03 --- G. Boillot, M. O. Beslier, C. M. Krawczyk, D. Rappin, and T. J. Reston: The formation of passive margins: constraints from the crustal structure and segmentation of the deep Galicia margin, Spain / Geological Society, London, Special Publications, 90:71-91, doi:10.1144/GSL.SP.1995.090.01.04 --- T. J. Reston, C. M. Krawczyk, and H.-J. Hoffmann: Detachment tectonics during Atlantic rifting: analysis and interpretation of the S reflection, the west Galicia margin / Geological Society, London, Special Publications, 90:93-109, doi:10.1144/GSL.SP.1995.090.01.05 --- Liselotte Kiørboe and Steen Agerlin Petersen: Seismic investigation of the Faeroe basalts and their substratum / Geological Society, London, Special Publications, 90:111-123, doi:10.1144/GSL.SP.1995.090.01.06 --- K. Vanneste, J.-P. Henriet, J. Posewang, and F. Theilen: Seismic stratigraphy of the Bill Bailey and Lousy Bank area: implications for subsidence history / Geological Society, London, Special Publications, 90:125-139, doi:10.1144/GSL.SP.1995.090.01.07 --- Morten Sparre Andersen and Lars Ole Boldreel: Effect of Eocene-Miocene Compression Structures on Bottom-Water Currents in the Faeroe-Rockall Area / Geological Society, London, Special Publications, 90:141-143, doi:10.1144/GSL.SP.1995.090.01.08 --- Lars Ole Boldreel and Morten Sparre Andersen: The relationship between the distribution of Tertiary sediments, tectonic processes and deep-water circulation around the Faeroe Islands / Geological Society, London, Special Publications, 90:145-158, doi:10.1144/GSL.SP.1995.090.01.09 --- M. S. Stoker: The influence of glacigenic sedimentation on slope-apron development on the continental margin off Northwest Britain / Geological Society, London, Special Publications, 90:159-177, doi:10.1144/GSL.SP.1995.090.01.10 --- Regin Waagstein and Claus Heilmann-Clausen: Petrography and biostratigraphy of Palaeogene volcaniclastic sediments dredged from the Faeroes shelf / Geological Society, London, Special Publications, 90:179-197, doi:10.1144/GSL.SP.1995.090.01.11 --- E. J. W. Jones, S. C. Cande, and F. Spathopoulos: Evolution of a major oceanographic pathway: the equatorial atlantic / Geological Society, London, Special Publications, 90:199-213, doi:10.1144/GSL.SP.1995.090.01.12 --- Morten Sparre Andersen and Lars Ole Boldreel: Tertiary compression structures in the Faeroe-Rockall area / Geological Society, London, Special Publications, 90:215-216, doi:10.1144/GSL.SP.1995.090.01.13 --- Simon K. Haslett: Pliocene-Pleistocene radiolarian biostratigraphy and palaeoceanography of the North Atlantic / Geological Society, London, Special Publications, 90:217-225, doi:10.1144/GSL.SP.1995.090.01.14 --- John B. Hunt, Nigel G. T. Fannin, Peter G. Hill, and J. Douglas Peacock: The tephrochronology and radiocarbon dating of North Atlantic, Late-Quaternary sediments: an example from the St. Kilda Basin / Geological Society, London, Special Publications, 90:227-248, doi:10.1144/GSL.SP.1995.090.01.15 --- K. Thomson and R. R. Hillis: Tertiary structuration and erosion of the Inner Moray Firth / Geological Society, London, Special Publications, 90:249-269, doi:10.1144/GSL.SP.1995.090.01.16 --- C. N. Wold: Palaeobathymetric reconstruction on a gridded database: the northern North Atlantic and southern Greenland-Iceland-Norwegian sea / Geological Society, London, Special Publications, 90:271-302, doi:10.1144/GSL.SP.1995.090.01.17

Description / Table of Contents: A guide to field personnel in practical aspects and commonly encountered problems of ground-water investigations, development, and management. Information is presented covering such aspects as ground-water investigations, aquifer test analysis, estimating aquifer yield, data collection, and geophysical investigations. In addition, the manual includes permeability tests, well design, dewatering systems, well specifications and drilling, well sterilization, pumps, and other aspects.