This book focuses on Romania’s more than 12,000 caves, which developed in limestone (including thermal water caves), salt, gypsum, and occasionally in sandstone. It examines these caves and related topics in a format suitable for cavers, while also addressing a broad range of aspects useful for students and researchers. Since the Institute of Speleology was first established by Emil Racovita in 1920, a great deal of research has been conducted on all cave and karst types. As such, the book examines a variety of scientific fields, including karst geology, hydrogeology, biospeleology, paleoclimatology, mineralogy and archaeology.

This book describes Hungarian karst areas and Hungarian karst research results. The chapters present the general characteristics of karst areas, their geology, their paleokarst, their hydrology, their surface and subsurface morphology (more significant caves are classified according to karst areas and their morphology and development is described), ecology and flora and fauna. This book also includes a separate chapter which deals with the history of Hungarian karst and cave research. Another chapter deals with theories that were made during Hungarian karst researches.

This book discusses the karst and pseudokarst of the Upper Midwest, USA, consisting of the states of Minnesota, Wisconsin, Iowa, and Illinois—the first regional synthesis in 40 years. Starting with an overview of the regional geology of what is largely glaciated fluviokarst and paleokarst developed on Paleozoic carbonates, but including other lithologies such as the St. Peter Sandstone and the Ft. Dodge Gypsum, the caves, springs, sinkholes, and karst hydrogeology of each state are described. Special attention is devoted to the region’s longest caves: Coldwater Cave, Mystery Cave, and the Minnesota Cave Preserve caves. Application of tools such as data loggers and LiDAR, with new conceptual models such as hypogenic speleogenesis, has been transformative here. Special topics include lead and zinc mining in the Driftless Area, vertebrate and invertebrate cave fauna near the Laurentide ice limit, the impact and policies of nutrient and herbicide intensive modern agriculture on karst, and paleoclimate studies. The discovery, exploration, institutional history of caving organizations, and show caves of the Upper Midwest, from the year 1700 onwards, are brought up to date. The top 10 historical paradigms of cave and karst science in the Midwest are reviewed. Perspectives on paleontology, archeology, and Native American rock art are included.

This book illustrates the diversity of hypogene speleogenetic processes and void-conduit patterns depending on variations of the geological environments by presenting regional and cave-specific case studies. The cases include both well-known and newly recognized hypogene karst regions and caves of the world. They all focus on geological, hydrogeological, geodynamical and evolutionary contexts of hypogene speleogenesis. The last decade has witnessed the boost in recognition of the possibility, global occurrence, and practical importance of hypogene karstification (speleogenesis), i.e. the development of solutional porosity and permeability by upwelling flow, independent of recharge from the overlying or immediately adjacent surface. Hypogene karst has been identified and documented in many regions where it was previously overlooked or misinterpreted. The book enriches the basis for generalization and categorization of hypogene karst and thus improves our ability to adequately model hypogene karstification and predict related porosity and permeability. It is a book which benefits every researcher, student, and practitioner dealing with karst.

This book offers readers a thorough introduction to the Dinaric Karst System in Croatia. As the first comprehensive book on the country’s caves and karst, it presents a wealth of fascinating photographs from its karst underground. To date, ca. 12,000 caves and pits have been confirmed in Croatia, approximately 35% of which contain constant groundwater. Knowing the amount, direction and quality of groundwater that has been discovered in caves of the Croatian karst allows us to predict with greater certainty the hydrogeological situation of some karst areas where no special drilling or borehole measurements were performed. In the process of building highways in the country’s karst regions over the last thirty years, thousands of caverns (speleological features without natural entrances) were discovered and thoroughly explored. All of them were geologically mapped, surveyed, and photographed in detail. Extensive research was systematically carried out in Croatian karst regions on sections of roads, highways, cuttings, slides, tunnels, bridge foundations, viaducts, etc., while creating ca. 800 kilometers of highways (such as the Zagreb-Rijeka highway, Zagreb-Split-Dubrovnik highway, Y-Ipsilon of Istria semi-highway, Rijeka-Rupa highway, Zagreb-Zadar semi-highway, and the Rijeka bypass). Some of these caverns contain major chambers like in the “Sveti Rok” tunnel and in some of them, like in the “Vrata” tunnel, it was even necessary to build a bridge. This bridge is the longest one in the world built in a tunnel over a cavern. The book describes this and many more features of the cave exploration of the Dinaric Karst System of Croatia, making it a valuable resource for researchers, engineers, cavers, and all other readers interested in karst.

Cave organisms are the ‘monsters’ of the underground world and studying them invariably raises interesting questions about the ways evolution has equipped them to survive in permanent darkness and low-energy environments. Undertaking ecological studies in caves and other subterranean habitats is not only challenging because they are difficult to access, but also because the domain is so different from what we know from the surface, with no plants at the base of food chains and with a nearly constant microclimate year-round. The research presented here answers key questions such as how a constant environment can produce the enormous biodiversity seen below ground, what adaptations and peculiarities allow subterranean organisms to thrive, and how they are affected by the constraints of their environment. This book is divided into six main parts, which address: the habitats of cave animals; their complex diversity; the environmental factors that support that diversity; individual case studies of cave ecosystems; and of the conservation challenges they face; all of which culminate in proposals for future research directions. Given its breadth of coverage, it offers an essential reference guide for graduate students and established researchers alike.

The focus of this book is on the more than 2000 caves of the Greenbrier Valley of West Virginia of which the 14 with lengths greater than 10 km have an aggregate length of 639 km. The major caves form the core part of sub-basins which drain to big springs and ultimately to the Greenbrier River. Individual chapters of this book describe each of the major caves and its associated drainage basin. The caves are formed in the Mississippian Greenbrier Limestone in a setting of undulating gentle folds. Fractures, lineaments and confining layers within the limestone are the main controlling factors. The caves underlie an extensive sinkhole plain which may relate to a major erosion surface. The caves are habitat for both aquatic and terrestrial organisms which are cataloged and described as are the paleontological remains found in some of the caves. The sinkhole plain of the Greenbrier karst and the underlying complex of cave systems are the end result of at least a ten million year history of landscape evolution which can be traced through the evolving sequence of cave passages and which is described in this book.