High-Latitude Bioerosion: The Kosterfjord Experiment


Book Description

Traces of the action of mechanical and chemical boring, scraping or crushing organisms on hard substrates appear in fossil carbonates as old as the Precambrian, providing valuable palaeoenvironmental indicators. Bioerosion has been extensively studied in tropical seas, but data from cold-temperate to polar settings remain sparse. This book presents an experimental study into the pace of carbonate degradation and the chronology of boring community development along a bathymetric gradient in high-latitude settings.




Current Developments in Bioerosion


Book Description

It has become apparent from the literature that bioerosional processes affect a wide range of biological and geological systems that cross many disciplines among the sciences. This book is dedicated to crossing those traditional disciplinary boundaries to present a united and current perspective on the pattern and process of bioerosion. The book opens with papers on the evolutionary significance of bioerosion. It concludes with a primer on the bioerosion bibliography website.




Benthic foraminifers as tools to reconstruct high-latitude Holocene climate variability and processes during cold-water coral mound growth and development


Book Description

Cold-water corals occur worldwide from high latitudes to tropical areas, in various settings from the deep-sea to shallow marine environments near the coast. The topic of this thesis is the establishment and extension of knowledge about environmental conditions controlling cold-water coral (CWC) mound development. From literature it is known that glacial-interglacial cycles drive development and geographic distribution of CWC mounds on a large scale. On the other hand, knowledge about the influence of small scale climatic and oceanographic changes during the Holocene is scarce. Thus, this thesis focuses on the investigation of the limited Holocene climatic and oceanographic changes and their effect on the process of mound genesis. For this purpose, a Holocene CWC mound setting in a sound in the Altafjord in northern Norway (70°N) -- the Stjernsund -- was chosen and the local benthic ecosystem was extensively analysed. Von den sub-arktischen hohen Breiten bis in warme tropische Zonen besiedeln Kaltwasserkorallen unseren Planeten. Sie haben sich verschiedenste Lebensräume erschlossen --- Von der Tiefsee bis zu marinen Flachwassergebieten an der Küste kann ihr Vorkommen beobachtet werden. Sie bilden faszinierende Ökosysteme die erst in den letzten Jahrzehnten intensiver erforscht wurden. Diese Arbeit widmet sich der tieferen Erforschung dieser Lebensräume. Im Fokus stehen dabei Umweltbedingungen, die die Entwicklung der Kaltwasserkorallenvorkommen kontrollieren. Umfangreiche frühere Untersuchungen haben bereits gezeigt, dass ihr Wachstum, als auch ihre geographische Verbreitung im Wesentlichen von Glazial-Interglazial-Zyklen gesteuert werden. Die kurzzeitlichen klimatischen und ozeanographischen Steuerungsfaktoren sind im Vergleich dazu jedoch nahezu unbekannt. Daher konzentriert sich diese Arbeit auf die Erforschung von kurzeitigen klimatischen und ozeanographischen Veränderungen, die insbesondere im Holozän zu beobachten sind, sowie deren mögliche Auswirkungen auf die Entwicklung von Kaltwasserkorallen Mounds. Hierzu wurde der holozäne Kaltwasserkorallen Mound im Stjernsund, ein Sund im Altafjord in Nordnorwegen (70°N) ausgewählt und dessen benthisches Ökosystem umfassend analysiert.




Fossil Fungi


Book Description

Fungi are ubiquitous in the world and responsible for driving the evolution and governing the sustainability of ecosystems now and in the past. Fossil Fungi is the first encyclopedic book devoted exclusively to fossil fungi and their activities through geologic time. The book begins with the historical context of research on fossil fungi (paleomycology), followed by how fungi are formed and studied as fossils, and their age. The next six chapters focus on the major lineages of fungi, arranging them in phylogenetic order and placing the fossils within a systematic framework. For each fossil the age and provenance are provided. Each chapter provides a detailed introduction to the living members of the group and a discussion of the fossils that are believed to belong in this group. The extensive bibliography (~ 2700 entries) includes papers on both extant and fossil fungi. Additional chapters include lichens, fungal spores, and the interactions of fungi with plants, animals, and the geosphere. The final chapter includes a discussion of fossil bacteria and other organisms that are fungal-like in appearance, and known from the fossil record. The book includes more than 475 illustrations, almost all in color, of fossil fungi, line drawings, and portraits of people, as well as a glossary of more than 700 mycological and paleontological terms that will be useful to both biologists and geoscientists. - First book devoted to the whole spectrum of the fossil record of fungi, ranging from Proterozoic fossils to the role of fungi in rock weathering - Detailed discussion of how fossil fungi are preserved and studied - Extensive bibliography with more than 2000 entries - Where possible, fungal fossils are placed in a modern systematic context - Each chapter within the systematic treatment of fungal lineages introduced with an easy-to-understand presentation of the main characters that define extant members - Extensive glossary of more than 700 entries that define both biological, geological, and mycological terminology




Life Sculpted


Book Description

"As the co-discoverer of the first known burrowing dinosaur and a popular science author, Anthony J. Martin is an expert at explaining his fossil-finding work to broad audiences. In this engaging book, Martin uses modern and fossil traces to introduce readers to a menagerie of animals and other lifeforms that dig, crunch, bore, and otherwise reshape our planet. We meet elephants that dig ballroom-sized caves alongside volcanoes, parrotfishes that chew coral reefs and poop out sandy beaches, dinosaur-eating crocodiles, and moon snails that drill into clams, or even other moon snails. In a detective story that spans millions of years, ranging from microbes to whales, Martin shows how when life got hard, life got boring, using bodies and behavior to hide, eat, attack, and defend, affecting both our world and our understanding of evolution, climate, and life itself"--




Advances in Stromatolite Geobiology


Book Description

Stromatolites are the most intriguing geobiological structures of the entire earth history since the beginning of the fossil record in the Archaean. Stromatolites and microbialites are interpreted as biosedimentological remains of biofilms and microbial mats. These structures are important environmental and evolutionary archives which give us information about ancient habitats, biodiversity, and evolution of complex benthic ecosystems. However, many geobiological aspects of these structures are still unknown or only poorly understood. The present proceedings highlight the new ideas and information on the formation and environmental setting of stromatolites presented at the occasion of the Kalkowsky Symposium 2008, held in Göttingen, Germany.




Coastal Karst Landforms


Book Description

Carbonate rock coasts are found world-wide, from continental shorelines of the Adriatic Sea of Europe to the Yucatan Peninsula of North America, and on tropical islands from Rodrigues Island in the Indian Ocean, to the Mariana Islands in the Pacific Ocean, to the Bahama Islands in the Atlantic Ocean. Such coasts are well known for their unusual and distinctive karst landforms. Karst processes, particularly those associated with coastal landforms, are proving to be surprisingly unique and complex. This volume presents a comprehensive overview of the processes associated with coastal karst development comparing examples from a broad geographical and geomorphological range of island and continental shoreline/paleoshoreline settings, including a review of pseudokarst processes that can compete with and overprint dynamic coastal karst landscapes. As effective management of hydrologic resources grows more complex, coastal caves and karst represent fundamental components in associated coastal aquifers, which in the rock record can also form significant petroleum reservoirs. Audience By providing a clearer understanding of the geological, biological, archaeological and cultural value of coastal caves and karst resources, this volume offers a critical tool to coastal researchers and geoscientists in related fields and to coastal land managers as it illustrates the diversity of coastal karst landforms, the unique processes which formed them, the diversity of resources they harbor and their relationship to coastal zone preservation strategies and the development of sustainable management approaches.




Trace Fossils as Indicators of Sedimentary Environments


Book Description

Integration of ichnological information into sedimentological models, and vice versa, is one of the main means by which we can improve our understanding of ancient depositional environments. Mainly intended for sedimentologists, this book aims to make ichnological methods as part of facies interpretation more popular, providing an analytical review of the ichnology of all major depositional environments and the use of ichnology in biostratigraphic and sequence stratigraphic analysis. It starts with an introduction to the historical aspect of ichnology, introducing common concepts and methods, and then continues with parts treating the main depositional systems from continental, shallow-marine and deep-marine siliciclastics, and marine carbonates. The last part is dedicated to the ichnology in hydrocarbon reservoir and aquifer characterization. - First overview in 25 years of the status of ichnological studies in facies reconstructions of all major depositional environments - Written by a selected, well-experienced and specialized international authorship - Provides easy access to the comprehensive and widespread literature




Ichnology


Book Description

Ichnology is the study of traces created in the substrate by living organisms. This is the first book to systematically cover basic concepts and applications in both paleobiology and sedimentology, bridging the gap between the two main facets of the field. It emphasizes the importance of understanding ecologic controls on benthic fauna distribution and the role of burrowing organisms in changing their environments. A detailed analysis of the ichnology of a range of depositional environments is presented using examples from the Precambrian to the recent, and the use of trace fossils in facies analysis and sequence stratigraphy is discussed. The potential for biogenic structures to provide valuable information and solve problems in a wide range of fields is also highlighted. An invaluable resource for researchers and graduate students in paleontology, sedimentology and sequence stratigraphy, this book will also be of interest to industry professionals working in petroleum geoscience.




High-Latitude Bioerosion: The Kosterfjord Experiment


Book Description

Traces of the action of mechanical and chemical boring, scraping or crushing organisms on hard substrates appear in fossil carbonates as old as the Precambrian, providing valuable palaeoenvironmental indicators. Bioerosion has been extensively studied in tropical seas, but data from cold-temperate to polar settings remain sparse. This book presents an experimental study into the pace of carbonate degradation and the chronology of boring community development along a bathymetric gradient in high-latitude settings.