Atlas Of Benthic Shelf Foraminifera Of The Southwest Atlantic

This book discusses the taxonomy, distribution, and ecology of the bethic foraminifera of the southwesstern Atlantic. It attempts to bring together in one place the descriptions and illustrations to accompany and amplify the zoogeographic and ecologic work done in the past, and to revise and update the taxonomy given in past studies in the area.

This atlas gives a comprehensive account on the benthic foraminiferal fauna in the China Seas, especially on the Bohai and the Yellow Seas. Details of about 183 species, subjected to 5 orders, 52 families and 92 genera are included. For each species there is a brief description of the morphological characteristics, synonymised names, measurements and geographical distribution worldwide, as well as a top-level elegant plate illustrated the fossil and live specimens. It could be used as a reference book for researchers working at marine biology, marine geology, micropaleontology, paleoceanography, paleobiology and related fields.

An up-to-date atlas of an important fossil and living group, with the Natural History Museum. Deep-sea benthic foraminifera have played a central role in biostratigraphic, paleoecological, and paleoceanographical research for over a century. These single–celled marine protists are important because of their geographic ubiquity, distinction morphologies and rapid evolutionary rates, their abundance and diversity deep–sea sediments, and because of their utility as indicators of environmental conditions both at and below the sediment–water interface. In addition, stable isotopic data obtained from deep–sea benthic foraminiferal tests provide paleoceanographers with environmental information that is proving to be of major significance in studies of global climatic change. This work collects together, for the first time, new morphological descriptions, taxonomic placements, stratigraphic occurrence data, geographical distribution summaries, and palaeoecological information, along with state-of-the-art colour photomicrographs (most taken in reflected light, just as you would see them using light microscopy), of 300 common deep-sea benthic foraminifera species spanning the interval from Jurassic - Recent. This volume is intended as a reference and research resource for post-graduate students in micropalaeontology, geological professionals (stratigraphers, paleontologists, paleoecologists, palaeoceanographers), taxonomists, and evolutionary (paleo)biologists.

This book provides effective statistical analyses in benthic foraminiferal communities patterns and show solutions for sea-land processes and alterations caused by climate changes and other local (and global) environmental concerns. Our goal is to provide, through these chapters, the monitoring and forecasting of environmental impacts with accurate data. We identify global regions most subject to industrial pollution, contamination and sewage, identifying potential sites prone to accumulate organic matter, which effects erosion, deposition, ocean temperature and pH changes (warming, cooling, acidification), climate and sea-level changes. Benthic habitats, specifically foraminiferal (single celled microorganisms found in the water column and sediment) contribute to our understanding of local and global climate change that effect at risk communities. Derived through the accuracy of oceanographic climate science, allow us to predict with the intention to alleviate potential loss in coastal areas, which are, the most vulnerable to ocean warming, cooling, acidification, and sea-level rise impacts. We unravel the mystery of the Environmental Impacts and Climate Change, helping communities prepare, adjust, adapt, and minimize effects or remediate loss. We show how to pinpoint the most vulnerable and specific sites for economic and social damage and loss, using foraminifera, an inexpensive and easily handled proxy valuable for monitoring coastal and marine environmental stressors. The implications of those problems and the ability to forecast patterns on land are primary issues we address by studying marine sediment of beaches, estuaries, bays and deep water worldwide. Ecology, biology, life history, and taxonomy of modern Foraminifera allows us to examine the current and historical record of environmental change effects, and predict implications for future sea-level rise, and ocean patterns. The prediction of responses of interacting systems to these problems, and development of strategies is needed to inform leadership with the knowledge and data to effectively implement policy, making this book a very informative and significant contribution for researchers and decision makers.

The evolution of the Argentina Continental Margin during the Quaternary and the stratigraphic and morphosedimentary configuration responded to climatic variability, oceanographic changes, glacioeustatic fluctuations and tectono-isostatic processes, which began to impact on the margin during previous geological periods. The final modeling of the margin was achieved in the late Miocene, when the interaction between the Antarctic and North Atlantic water-masses favored climatic and oceanographic changes with a profound effect on morphosedimentary features. In the Quaternary, the different regions of the margin distinctly responded to such changes. Whereas in the shelf the main modeling factors were the sea-level fluctuations of glacioeustatic origin and consequent marine-continental stratigraphic records, in the slope (particularly in the sector corresponding to the passive margin) the prevailing effect was the interaction between water-masses and the sea floor, giving origin to contouritic depositional systems accompanied of gravity processes responsible of turbiditic and mass-wasting deposits. Different relationships between contouritic and turbiditic facies respond to distinct combinations of oceanic circulation variability and the indirect effect on the sea floor of sea-level fluctuations. As a result of this complexity in the regional processes in the framework of the broad hemispheric oceanographic-climatic conditioning factors, the ACM can be considered as a complete archive for the Southern Ocean.

Foraminiferal cultures now serve as tools for researching biological, environmental, and geological topics. However, the biological backgrounds, in particular the natural histories of foraminifera, largely remain unclear. It is also true that the different techniques used in different subdisciplines are a setback to fully understanding the subject. Taken together, these factors prevent progress in experimental approaches to foraminiferal studies. This book aims to share and exchange knowledge between researchers from different subdisciplines, and the book should interest not only foraminiferal researchers but also scientists who are working with marine organisms to explore questions in relation to biology, geology, and oceanography.

The 13 papers in this collection examine the coastal regions, the Gulf of Maine, and the continental shelf off of Atlantic Canada in context with new radiocarbon age analyses, providing a detailed history of climate changes, marine transgression, emergence, and relative sea- level history. Specific topics include deglaciation of the Gulf of Maine, Late Quaternary morphogenesis of a marine-limit delta plain in southwest Maine, morainal banks and the deglaciation of coastal Maine, and glacial dynamics, deglaciation, and marine invasion in southern Quebec. Material originated at a March 1998 symposium held in Maine at the 33rd Annual Meeting of the Northeastern Section of the Geological Society of America. Weddle is affiliated with the Maine Geological Survey. Retelle teaches geology at Bates College. Annotation copyrighted by Book News Inc., Portland, OR.