The Triassic Bivalves Daonella and Halobia in New Zealand, New Caledonia, and Svalbard

The Triassic Bivalves Daonella and Halobia in New Zealand, New Caledonia, and Svalbard PDF Author: Hamish J. Campbell
Publisher:
ISBN:
Category : Bivalves, Fossil
Languages : en
Pages : 184

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The Triassic Bivalves Daonella and Halobia in New Zealand, New Caledonia, and Svalbard

The Triassic Bivalves Daonella and Halobia in New Zealand, New Caledonia, and Svalbard PDF Author: Hamish J. Campbell
Publisher:
ISBN:
Category : Bivalves, Fossil
Languages : en
Pages : 184

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Stratigraphic Significance of the Triassic Bivalves Daonella and Halobia in New Zealand and New Caledonia

Stratigraphic Significance of the Triassic Bivalves Daonella and Halobia in New Zealand and New Caledonia PDF Author: H. J. Campbell
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Southern Hemisphere Palaeobiogeography of Triassic-Jurassic Marine Bivalves

Southern Hemisphere Palaeobiogeography of Triassic-Jurassic Marine Bivalves PDF Author: Susana E. Damborenea
Publisher: Springer Science & Business Media
ISBN: 9400750978
Category : Science
Languages : en
Pages : 142

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Book Description
Palaeobiogeography is a complex subject which processes information provided by both Biology and Earth Sciences. It is conceptually and philosophically equivalent to neobiogeography. Nevertheless, its methods are somewhat different, since it is limited by the incompleteness of the fossil record. On the other hand, it has direct access to the time dimension, a key ingredient of organic evolution. Mesozoic benthonic mollusks, and especially bivalves, have a great potential for palaeobiogeographical analysis due to their commonly good preservation, abundance, diversity and high dispersion potential at the larval stage. From a merely descriptive point of view, the analysis of their distribution shows latitudinal gradients and distributional patterns, both at regional and global scales, which are the basis for the recognition of biochoremas or palaeobiogeographical units of different ranks. Moving forward towards a causal palaeobiogeography, these organisms also provide interesting insight into particular biogeographical questions, such as bipolarity and its origin. The evolution in time of the recognized biochoremas can be discussed in relation to palaeoclimas and extinction events. Finally, some of the results obtained from the analysis of the distribution of past bivalve biotas were even used to propose and discuss the development of marine corridors and argue about the distribution of continents in the past.

The Triassic Timescale

The Triassic Timescale PDF Author: Spencer G. Lucas
Publisher: Geological Society of London
ISBN: 9781862392960
Category : Cyclostratigraphy
Languages : en
Pages : 528

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The Mesozoic Era begins with the approximately 50-million-year-long Triassic Period, a major juncture in Earth history when the vast Pangaean supercontinent completed its assembly and began its fragmentation, and the global biota diversified and modern-ized after the end-Permian mass extinction, the most extensive biotic decimation of the Phanerozoic. The temporal ordering of geological and biotic events during Triassic time thus is critical to the interpretation of some unique and pivotal events in Earth his-tory. This temporal ordering is mostly based on the Triassic time-scale, which has been developed and refined for nearly two centu-ries. This book reviews the state of the art of the Triassic timescale and includes comprehensive analyses of Triassic radio-isotopic ages, magnetostratigraphy, isotope-based and cyclostratigraphic correlations and timescale -relevant marine and non-marine bio-stratigraphy.

Permian-Triassic Evolution of Tethys and Western Circum-Pacific

Permian-Triassic Evolution of Tethys and Western Circum-Pacific PDF Author: Yin Yin Hongfu
Publisher: Elsevier
ISBN: 0080538657
Category : Science
Languages : en
Pages : 413

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Permian and Triassic are the interval known for the integration and separation of Pangea, the closure of the Palaeotethys and the opening of Mesotethys. They were associated with a series of worldwide events including the Late Palaeozoic glaciation and succeeding extensive evaporatic and reef formations, the end-Palaeozoic regression, strong orogenies and widespread volcanism and magmatism, and finally, the Permo-Triassic biotic macro-extinction. These events resulted in the formation of enormous reserves of coal, petroleum, evaporites, phosphorites and metal resources. The Permian and Triassic thus constitutes a time interval particularly important both for understanding the Earth's history and for exploration of mineral resources.The book aims to reconstruct the Permian-Triassic history of Pangea, Palaeo-Tethys and Palaeo-Pacific through stratigraphic, palaeogeographic and other interdisciplinary approaches. It consists of two parts. Part 1 deals with regional stratigraphy of Tethyan and western Circum-Pacific countries which is the basis for interregional correlation, and palaeogeography. Part 2 deals with the biotic evolution at the Permian-Triassic transition, focusing on the major invertebrate groups: foraminifers, radiolarians, brachiopods, ammonoids and conodonts.

Paleozoic–Mesozoic Geology of South Island, New Zealand Subduction-related Processes Adjacent to SE Gondwana

Paleozoic–Mesozoic Geology of South Island, New Zealand Subduction-related Processes Adjacent to SE Gondwana PDF Author: A.H.F. Robertson
Publisher: Geological Society of London
ISBN: 1786204304
Category : Science
Languages : en
Pages : 380

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Book Description
This volume presents a set of research papers that provide new data and interpretations of the Permian–Triassic terranes of SE Gondwana, now exposed in South Island, New Zealand. Following an introduction for general readers, a historical summary and a review of biostratigraphy, the individual papers primarily focus on the Permian magmatic arc of the Brook Street Terrane, the classic Permian Dun Mountain ophiolite and the Permian–Triassic Maitai Group sedimentary succession. The new results emphasize the role of subduction and terrane displacement adjacent to the Permo-Triassic Gondwana margin, and present fundamental insights into three crustal processes: subduction initiation, supra-subduction zone oceanic crust genesis and forearc basin evolution. The volume concludes with a wide-ranging summary and synthesis of the regional Cambrian to Early Cretaceous tectonostratigraphy of New Zealand’s South Island in relation to the wider areas of Zealandia, East Australia and West Antarctica. The volume will interest geoscientists, including stratigraphers, sedimentologists, palaeontologists, igneous petrologists, geochemists, geochronologists and economic geologists, and is aimed at professional geologists and advanced students of geology.

New Caledonia

New Caledonia PDF Author: P. Maurizot
Publisher: Geological Society of London
ISBN: 1786204665
Category : Science
Languages : en
Pages : 291

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Book Description
This memoir summarizes the current knowledge of New Caledonia’s geology, geodynamic evolution, and mineral resources, based on published and unpublished information. It comprises 10 research papers, each addressing a particular geological assemblage or topic. After an introductory chapter, and a review of the published geodynamic models of evolution of the SW Pacific, chapters 3 to 5 focus on the main geological assemblages of Grande Terre: the Pre-Late Cretaceous basement terranes, the Late Cretaceous to Eocene cover, and the Eocene subduction-obduction complex, one of the largest and best-preserved in the world. Chapter 6 is devoted to the Loyalty Islands and Ridge. Chapter 7 deals with the mostly terrestrial post-obduction units including regolith. Chapter 8 deals with palaeobiogeography and discuss plausible scenarios of biotic evolution. Chapters 9 and 10 provide an comprehensive review of New Caledonia’s mineral resources. The volume will interest stratigraphers, sedimentologists, marine geologists, palaeontologists, palaeogeographers, igneous and metamorphic petrologists, geochemists, geochronologists, and specialists in tectonics, geodynamic evolution, regolith, ophiolites, and economic geology.

New Zealand Geological Survey Paleontological Bulletin

New Zealand Geological Survey Paleontological Bulletin PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 396

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InterRad 11 & Triassic Stratigraphy Symposium

InterRad 11 & Triassic Stratigraphy Symposium PDF Author: C. J. Hollis
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 218

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FOSSIL RECORD 7

FOSSIL RECORD 7 PDF Author: Spencer G. Lucas
Publisher: New Mexico Museum of Natural History and Science
ISBN:
Category : Science
Languages : en
Pages : 578

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