ALBERT

Description / Table of Contents: This volume presents summaries of recent research results on the related subjects of source processes and explosion yield estimation, which are important elements of any treaty verification system. The term Source Processes, in the context of nuclear test monitoring, refers to a wide range of research topics. In a narrow definition, it describes the complex physical phenomena that are directly associated with a nuclear explosion, and the catastrophic deformation and transformation of the material surrounding the explosion. In a broader sense, it includes a host of topics related to the inference of explosion phenomena from seismic and other signals. A further widening of the definition includes the study and characterization of source processes of events other than nuclear, such as earthquakes and, in particular, mining explosions. This latter research is especially important relative to the question of identifying and discriminating nuclear explosions from other seismic events. Explosion Yield Estimation deals with the corresponding inverse problem of inferring explosion source characteristics through analyses of the various types of seismic signals produced by the explosion. This is a complex technical task which has been the focus of some of the most contentious treaty monitoring debates. The current compilation of eight articles on Source Processes and six articles on Explosion Yield Estimation gives a good representation of state-of-the-art research currently being conducted in the broad area of seismic source characterization in the context of nuclear test monitoring.

Description / Table of Contents: Preface / Iain Stewart / Geological Society, London, Special Publications, 171, vii-ix, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.01 --- Creation and destruction of travertine monumental stone by earthquake faulting at Hierapolis, Turkey / P. L. Hancock, R. M. L. Chalmers, E. Altunel, Z. Çakir and A. Becher-Hancock / Geological Society, London, Special Publications, 171, 1-14, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.02 --- Uses of volcanic products in antiquity / D. R. Griffiths / Geological Society, London, Special Publications, 171, 15-23, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.03 --- The advent of archaeoseismology in the Mediterranean / R. E. Jones and S. C. Stiros / Geological Society, London, Special Publications, 171, 25-32, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.04 --- A critical reappraisal of the classical texts and archaeological evidence for earthquakes in the Atalanti region, central mainland Greece / Victoria Buck and Iain Stewart / Geological Society, London, Special Publications, 171, 33-44, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.05 --- Aims and methods in territorial archaeology: possible clues to a strong fourth-century AD earthquake in the Straits of Messina (southern Italy) / Emanuela Guidoboni, Anna Muggia and Gianluca Valensise / Geological Society, London, Special Publications, 171, 45-70, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.06 --- Santorini (Greece) before the Minoan eruption: a reconstruction of the ring-island, natural resources and clay deposits from the Akrotiri excavation / Walter L. Friedrich, Marit-Solveig Seidenkrantz and Ole Bjørslev Nielsen / Geological Society, London, Special Publications, 171, 71-80, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.07 --- The eruption of the Santorini volcano and its effects on Minoan Crete / Jan Driessen and Colin F. MacDonald / Geological Society, London, Special Publications, 171, 81-93, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.08 --- Late Minoan IB marine ware, the marine environment of the Aegean, and the Bronze Age eruption of the Thera volcano / Peter Bicknell / Geological Society, London, Special Publications, 171, 95-103, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.09 --- Ground-penetrating radar mapping of Minoan volcanic deposits and the Late Bronze Age palaeotopography, Thera, Greece / James K. Russell and Mark V. Stasiuk / Geological Society, London, Special Publications, 171, 105-121, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.10 --- Precursory phenomena and destructive events related to the Late Bronze Age Minoan (Thera, Greece) and AD 79 (Vesuvius, Italy) Plinian eruptions; inferences from the stratigraphy in the archaeological areas / Raffaello Cioni, Lucia Gurioli, Alessandro Sbrana and Georges Vougioukalakis / Geological Society, London, Special Publications, 171, 123-141, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.11 --- A geographical information system for the archaeological area of Pompeii / M. T. Pareschi, G. Stefani, A. Varone, L. Cavarra, F. Giannini and A. Meriggi / Geological Society, London, Special Publications, 171, 143-158, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.12 --- Apulian Bronze Age pottery as a long-distance indicator of the Avellino Pumice eruption (Vesuvius, Italy) / Raffaello Cioni, Sara Levi and Roberto Sulpizio / Geological Society, London, Special Publications, 171, 159-177, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.13 --- Human response to Etna volcano during the classical period / D. K. Chester, A. M. Duncan, J. E. Guest, P. A. Johnston and J. J. L. Smolenaars / Geological Society, London, Special Publications, 171, 179-188, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.14 --- The Johnston-Lavis collection: a unique record of Italian volcanism / W. L. Kirk, R. Siddall and S. Stead / Geological Society, London, Special Publications, 171, 189-194, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.15 --- The archaeology of a Plinian eruption of the Popocatépetl volcano / Patricia Plunket and Gabriela Uruñuela / Geological Society, London, Special Publications, 171, 195-203, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.16 --- Timing of the prehistoric eruption of Xitle Volcano and the abandonment of Cuicuilco Pyramid, Southern Basin of Mexico / Silvia Gonzalez, Alejandro Pastrana, Claus Siebe and Geoff Duller / Geological Society, London, Special Publications, 171, 205-224, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.17 --- Volcanic disasters and cultural discontinuities in Holocene time, in West New Britain, Papua New Guinea / Robin Torrence, Christina Pavlides, Peter Jackson and John Webb / Geological Society, London, Special Publications, 171, 225-244, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.18 --- Tephrochronology of the Brooks River Archaeological District, Katmai National Park and Preserve, Alaska: what can and cannot be done with tephra deposits / James R. Riehle, Don. E. Dumond, Charles E. Meyer and Jeanne M. Schaaf / Geological Society, London, Special Publications, 171, 245-266, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.19 --- Endemic stress, farming communities and the influence of Icelandic volcanic eruptions in the Scottish Highlands / R. A. Dodgshon, D. D. Gilbertson and J. P. Grattan / Geological Society, London, Special Publications, 171, 267-280, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.20 --- Comparison and cross-checking of historical, archaeological and geological evidence for the location and type of historical and sub-historical eruptions of multiple-vent oceanic island volcanoes / S. J. Day, J. C. Carracedo, H. Guillou, F. J. Pais Pais, E. Rodriguez Badiola, J. F. B. D. Fonseca and S. I. N. Heleno / Geological Society, London, Special Publications, 171, 281-306, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.21 --- ‘A fire spitting volcano in our dear Germany’: documentary evidence for a low-intensity volcanic eruption of the Gleichberg in 1783? / J. P. Grattan, D. D. Gilbertson and A. Dill / Geological Society, London, Special Publications, 171, 307-315, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.22 --- Volcanic soils: their nature and significance for archaeology / Peter James, David Chester and Angus Duncan / Geological Society, London, Special Publications, 171, 317-338, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.23 --- The use of volcaniclastic material in Roman hydraulic concretes: a brief review / Ruth Siddall / Geological Society, London, Special Publications, 171, 339-344, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.24 --- Olmec stone sculpture: selection criteria for basalt / Patrick Hunt / Geological Society, London, Special Publications, 171, 345-353, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.25 --- Seismic and volcanic hazards affecting the vulnerability of the Sana’a area of Yemen / Richard Hughes and Adrian Collings / Geological Society, London, Special Publications, 171, 355-372, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.26 --- Archaeological, geomorphological and geological evidence for a major earthquake at Sagalassos (SW Turkey) around the middle of the seventh century AD / Marc Waelkens, Manuel Sintubin, Philippe Muchez and Etienne Paulissen / Geological Society, London, Special Publications, 171, 373-383, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.27 --- Fault pattern of Nisyros Island volcano (Aegean Sea, Greece): structural, coastal and archaeological evidence / Stathis C. Stiros / Geological Society, London, Special Publications, 171, 385-397, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.28 --- The geological origins of the oracle at Delphi, Greece / J. Z. De Boer and J. R. Hale / Geological Society, London, Special Publications, 171, 399-412, 1 January 2000, https://doi.org/10.1144/GSL.SP.2000.171.01.29

Description / Table of Contents: In September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data centre (IDC), and on-site inspections, to verify compliance. A global hydroacoustic monitoring system is being planned and implemented for verification of the CTBT. Much of the research conducted over the past several decades on acoustic surveillance of the oceans, formerly driven by the need to detect and track submarines, is now being applied to the development of effective monitoring methods to verify compliance with the CTBT. The aim of this volume on Hydroacoustic Monitoring of the CTBT is to summarize the research being conducted in this field and to provide basic references for future research. Much of the new research emphasizes major advances in understanding the coupling of ocean acoustic waves with elastic waves in the solid Earth. Topics covered include source excitation, detection and classification of events generating hydroacoustic signals, discrimination between underwater explosions and naturally occurring events, as well as topics in coupling of acoustic to seismic wavefields.

Description / Table of Contents: On September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections to verify compliance. Seismic methods play the lead role in monitoring the CTBT. This volume concentrates on the measurement and use of surface waves in monitoring the CTBT. Surface waves have three principal applications in CTBT monitoring: to help discriminate nuclear explosions from other sources of seismic energy, to provide mathematical characterizations of the seismic energy that emanates from seismic sources, and to be used as data in inversion for the seismic velocity structure of the crust and uppermost mantle for locating small seismic events regionally. The papers in this volume fall into two general categories: the development and/or application of methods to summarize information in surface waves, and the use of these summaries to advance the art of surface-wave identification, measurement, and source characterization. These papers cut across essentially all of the major applications of surface waves to monitoring the CTBT. This volume therefore provides a general introduction to the state of research in this area and should be useful as a guide for further exploration.

Description / Table of Contents: On September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections to verify compliance. Successful monitoring of a CTBT requires that we detect and identify all nuclear explosions. Since many events of concern will be too small to be detected teleseismically, this capability requires the use of regional-distance seismograms. The complexity of regional seismograms presents many technical challenges for a monitoring program. This issue focuses on problems associated with regional wave propagation through complex media. It includes papers that investigate regional variations of elastic and anelastic properties of Eurasia, the blockage of regional phases by sedimentary basins, methods for modeling regional wave propagation and for calibrating seismic wave paths in order to extract amplitude variations and source parameters. These papers illustrate the research and development necessary for acquiring an understanding of regional wave propagation which in turn provides the foundation for operational tools used to monitor a CTBT.

Description / Table of Contents: In September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data centre (IDC), and on-site inspections, to verify compliance. This volume contains research papers focusing on seismic ecent location in the CTBT context. The on-site inspection protocol of the treaty specifies a search area not to exceed 1000 square km. Much of the current research effort is therefore directed towards refining the accuracy of event location by including allowances for three-dimensional structure within the Earth. The aim is that the true location of each event will lie within the specified source zone regarding postulated location. The papers in this volume cover many aspects of seismic event location, including the development of algorithms suitable for use with three-dimensional models, allowances for regional structure, use of calibration events and source-specific station corrections. They provide a broad overview of the current international effort to improve seismic event location accuracy, and the editors hope that it will stimulate increased interest and further advances in this important field.