The Toarcian Oceanic Anoxic Event in the South Iberian Palaeomargin
Title | The Toarcian Oceanic Anoxic Event in the South Iberian Palaeomargin PDF eBook |
Author | Matías Reolid |
Publisher | Springer |
Pages | 127 |
Release | 2017-09-05 |
Genre | Science |
ISBN | 3319672118 |
This book presents the first overview of the Toarcian Oceanic Anoxic Event in the southern Iberian paleomargin, in the western Tethys. The study of catastrophic events that affected the ecosystems in the past is of great interest, because it offers the possibility of establishing models that can be applied to current and future environmental changes. The book provides comprehensive information on the changes in marine ecosystems in connection with a global massive extinction, the Early Toarcian, and with the deposition of black shales, global warming and a disruption of the carbon cycle. In addition, the book describes the incidence of this event in this part of the Tethys close to the connection with the Protoatlantic, the Hispanic Corridor. Special attention is paid to sedimentological and ichnological aspects, fossil content (macroscopic and microscopic), and geochemistry. It also presents the facies changes related to fragmentation of the shelf and the evolution to hemipel agic troughs and swells in this paleomargin. Lastly, it characterizes this anoxic event in under-researched outcrops from southern Spain and compares the findings with those in well-known sections from northern and central Europe. This book offers a unique resource for all researchers interested in the Toarcian Oceanic Anoxic Event, but also in oceanic anoxic events that occurred during the Mesozoic in general, because of their similarity to recent climatic changes.
Carbon Cycle and Ecosystem Response to the Jenkyns Event in the Early Toarcian (Jurassic)
Title | Carbon Cycle and Ecosystem Response to the Jenkyns Event in the Early Toarcian (Jurassic) PDF eBook |
Author | M. Reolid |
Publisher | Geological Society of London |
Pages | 418 |
Release | 2021-11-30 |
Genre | Science |
ISBN | 1786205467 |
The Toarcian Oceanic Anoxic Event, also known as the Jenkyns Event, was a hyperthermal episode which occurred during the early Toarcian (c. 183 Ma; Early Jurassic) and resulted in numerous collateral effects including global warming, enhanced weathering, sea-level change, carbonate crisis, marine anoxia–dysoxia, and a second-order mass extinction. This volume presents the last advances for understanding early Toarcian environmental changes through different disciplines: biostratigraphy, micropalaeontology, palaeontology, ichnology, palaeoecology, sedimentology, integrated stratigraphy, inorganic, organic and isotopic geochemistry, and cyclostratigraphy. The study of this abrupt climate change is critical for predicting future global changes, and for understanding the complex biogeochemical interactions through time between geosphere, atmosphere, hydrosphere and biosphere.
The Geology of Iberia: A Geodynamic Approach
Title | The Geology of Iberia: A Geodynamic Approach PDF eBook |
Author | Cecilio Quesada |
Publisher | Springer |
Pages | 589 |
Release | 2019-06-28 |
Genre | Science |
ISBN | 3030112950 |
Taking a new global approach, this unique book provides an updated review of the geology of Iberia and its continental margins from a geodynamic perspective. Owing to its location close to successive plate margins, Iberia has played a pivotal role in the geodynamic evolution of the Gondwanan, Rheic, Pangea, Tethys s.l. and Eurasian plates over the last 600 Ma of Earth's history. The geological record starts with the amalgamation of Gondwana in the Neoproterozoic succeeded by the rifting and spreading of the Rheic ocean; its demise, which led to the amalgamation of Pangea in the late Paleozoic; the rifting and spreading of several arms of the Neotethys ocean in the Mesozoic Era and their ongoing closure, which was responsible for the Alpine orogeny. The significant advances in the last 20 years have attracted international research interest in the geology of the Iberian Peninsula. This volume presents the most comprehensive, and updated description of the Alpine cycle in Iberia. This volume focuses in the different geological events during the Alpine orogeny as well as the lithological succession . This book is of interest not only for scientists of Portugal and Spain but also for geoscientists searching for analogies for oil and gas as well as tourists visiting the main mountain ridges of Iberia such as the Pyrenees.
Conservation Palaeobiology of Marine Ecosystems
Title | Conservation Palaeobiology of Marine Ecosystems PDF eBook |
Author | R. Nawrot |
Publisher | Geological Society of London Special Publications |
Pages | 406 |
Release | 2023-07-03 |
Genre | Science |
ISBN | 1786205777 |
Conservation palaeobiology tracks the history of ecosystems based on the fossil record to guide conservation decisions and contribute to the theoretical foundations of conservation biology. The accelerating pace of global change requires better understanding of the long-term resilience and adaptive capacities of ecosystems. Fossil assemblages in outcrops and cores, together with surface accumulations of skeletal remains, represent unique archives of past ecosystem dynamics and baseline community states prior to anthropogenic impacts. However, as biological data retrieved from fossil and death assemblages cannot be treated in isolation, conservation palaeobiology integrates palaeontological and geological tools to account for the nature of the stratigraphic record. This volume brings together studies that demonstrate how combining marine palaeoecological records with other types of geohistorical data (taphonomic, sedimentological, geochronological, geochemical) can inform biodiversity conservation and ecosystem management. The papers highlight novel approaches and challenges in applying geohistorical data to conservation problems, discuss the limitations imposed by time averaging, and offer both deep- and near-time perspectives on conservation palaeobiology of marine ecosystems.
From the Guajira Desert to the Apennines, and from Mediterranean Microplates to the Mexican Killer Asteroid
Title | From the Guajira Desert to the Apennines, and from Mediterranean Microplates to the Mexican Killer Asteroid PDF eBook |
Author | Christian Koeberl |
Publisher | Geological Society of America |
Pages | |
Release | 2022-08-01 |
Genre | Science |
ISBN | 0813725577 |
"This volume pays tribute to the career and scientific accomplishments of Walter Alvarez with papers related to the many topics he has covered : tectonics of microplates, structural geology, paleomagnetics, Apennine sedimentary sequences, geoarchaeology and Roman volcanics, Big History, and the discovery of evidence for a large asteroidal impact event at the Cretaceous-Tertiary (now Cretaceous-Paleogene) boundary site in Gubbio, Italy"--
The Llanbedr (Mochras Farm) Borehole
Title | The Llanbedr (Mochras Farm) Borehole PDF eBook |
Author | A. W. Woodland |
Publisher | |
Pages | 115 |
Release | 1971-01-01 |
Genre | Borings |
ISBN | 9780118802130 |
Mesozoic and Cenozoic Sequence Stratigraphy of European Basins
Title | Mesozoic and Cenozoic Sequence Stratigraphy of European Basins PDF eBook |
Author | Pierre Charles de Graciansky |
Publisher | |
Pages | 818 |
Release | 1998 |
Genre | Science |
ISBN |
This project was designed to build a documented chronostratigraphic and outcrop record of depositional sequences calibrated across European basins. Data on standard stages, magnetostratigraphy, and geochronology integrated with high resolution biostratigraphy calibrate the stratigraphic position of depositional sequence boundaries. Higher order eustatic sequences show a significant increase in the number identified. A good portion of the European Mesozoic and Cenozoic succession is set in the sequence stratigraphic context with a stratigraphic record of its bonding surfaces.