Cambrian of SW Wales PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Cambrian of SW Wales PDF full book. Access full book title Cambrian of SW Wales by A.J. Rees. Download full books in PDF and EPUB format.
Author: A.J. Rees
Publisher: Geological Society of London
ISBN: 1862396906
Category : Science
Languages : en
Pages : 148
Get Book Here
Book Description
This Memoir reviews, revises and interprets the biostratigraphy, lithostratigraphy, process sedimentology, palaeoenvironments and sequence stratigraphy of the classic Cambrian succession of SW Wales. This 1250m thick clastic sedimentary succession, of Terreneuvian to Furongian age, was deposited in environments ranging from alluvial fan to mid–outer shelf. Two lithostratigraphical groups are distinguished, each comprising six formations; where possible and appropriate, original and well-known names are retained in harmony with current usage. High-resolution sequence-stratigraphical techniques, constrained by biostratigraphical data whenever possible, allow the revised lithostratigraphy to be integrated with the western Avalonian chronostratigraphy developed in maritime Canada. A twofold subdivision is recognized. Megasequence 1 (sequences 3-7) spans the Terreneuvian, C2 and much of C3, with deposition occurring in an extensional rift-like regime on an epeirogenically active platform. Sequence 8 lies at the base of Megasequence 2, which extends from late C3 into the early Ordovician, and represents passive margin sedimentation.
Author: A.J. Rees
Publisher: Geological Society of London
ISBN: 1862396906
Category : Science
Languages : en
Pages : 148
Get Book Here
Book Description
This Memoir reviews, revises and interprets the biostratigraphy, lithostratigraphy, process sedimentology, palaeoenvironments and sequence stratigraphy of the classic Cambrian succession of SW Wales. This 1250m thick clastic sedimentary succession, of Terreneuvian to Furongian age, was deposited in environments ranging from alluvial fan to mid–outer shelf. Two lithostratigraphical groups are distinguished, each comprising six formations; where possible and appropriate, original and well-known names are retained in harmony with current usage. High-resolution sequence-stratigraphical techniques, constrained by biostratigraphical data whenever possible, allow the revised lithostratigraphy to be integrated with the western Avalonian chronostratigraphy developed in maritime Canada. A twofold subdivision is recognized. Megasequence 1 (sequences 3-7) spans the Terreneuvian, C2 and much of C3, with deposition occurring in an extensional rift-like regime on an epeirogenically active platform. Sequence 8 lies at the base of Megasequence 2, which extends from late C3 into the early Ordovician, and represents passive margin sedimentation.
Author: George Tod
Publisher: Cicerone Press Limited
ISBN: 1783627689
Category : Travel
Languages : en
Pages : 338
Get Book Here
Book Description
Dubbed 'the mountain connoisseurs' walk', the Cambrian Way stretches 479km between the mighty castles of Cardiff in the south and Conwy on the north coast. Traversing the heartland of Wales, the challenging route crosses the Brecon Beacons, the Cambrian Mountains and Snowdonia, passing through two national parks and visiting many of the country's iconic summits, including Pen y Fan, Pumlumon, Cadair Idris and Snowdon itself. It can be walked in three weeks (or in shorter sections) and is suitable for experienced hillwalkers with sound navigational skills. The guide presents the route in 21 stages, offering comprehensive route description illustrated with OS 1:50,000 mapping and elevation profiles. Details of accommodation and facilities are provided, along with a helpful trek planner showing their distribution along the route: although the trail passes through remote areas, it is possible to stay under a roof every night - though camping is also a possibility, should you prefer. There are background notes on Wales's history and geology and local points of interest, and a glossary of Welsh place-names, useful contacts and accommodation listings can be found in the appendices. From the Black Mountains to the Rhinogau, Glyderau and Carneddau, the route takes in lofty ridges, striking peaks and picturesque lakes. There are also fascinating glimpses into the country's ancient and more recent past: Iron Age hillforts, Norman castles, a Cistercian abbey, the Chartist Cave and relics from the mining industry. Offering superlative scenery, the Cambrian Way is a celebration of some of the best mountain walking Wales has to offer and promises a unique opportunity to immerse yourself in these celebrated landscapes.
Author: P. J. Brenchley
Publisher: Geological Society of London
ISBN: 9781862392007
Category : Science
Languages : en
Pages : 588
Get Book Here
Book Description
This second edition of 'The Geology of England and Wales' is considerably expanded from its predecessor, reflecting the increase in our knowledge of the region, and particularly of the offshore areas. Forty specialists have contributed to 18 chapters, which cover a time range from 700 million years ago to 200 million years into the future. A new format places all the chapters in approximately temporal order. Both offshore and economic geology now form an integral part of appropriate chapters.
Author: A. W. A. Rushton
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 468
Get Book Here
Book Description
The Cambrian and Ordovician systems are recognised worldwide as two of the major divisions of geological time. This volume describes some 130 sites that encapsulate key features of the Cambrian and Ordovician in Britain, and the reference list provides an entry to the literature on the subject.
Author: Adam Sedgwick
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 896
Get Book Here
Book Description
Author: Sir Norman Lockyer
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 780
Get Book Here
Book Description
Author: British Association for the Advancement of Science
Publisher:
ISBN:
Category :
Languages : en
Pages : 518
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Industrial arts
Languages : en
Pages : 336
Get Book Here
Book Description
Author: J. G. C. Anderson
Publisher: Elsevier
ISBN: 1483292975
Category : Science
Languages : en
Pages : 263
Get Book Here
Book Description
After a brief account of the stratigraphy in each case, the author summarises the structure of the main tectonic units of Western Europe, the units being defined within the framework of Precambrian, Caledonian, Hercynian and Alpine structures. The work provides accounts of these structural units both for geological study in general and for field visits for advanced school level and research students. A useful complementary volume to 'The Structure of the British Isles' (Anderson and Owen).
Author: J. William Schopf
Publisher: Cambridge University Press
ISBN: 9780521366151
Category : Science
Languages : en
Pages : 1408
Get Book Here
Book Description
First published in 1992, The Proterozoic Biosphere was the first major study of the paleobiology of the Proterozoic Earth.
