Lewisian, Torridonian and Moine rocks of Scotland

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Joint Nature Conservation Committee , Peterborough
Geology -- Scotland, Geology, Stratigraphic -- Precam
Statement[edited by] J.R. Mendum ... [et al.].
SeriesGeological conservation review series, Geological conservation review series -- 34.
ContributionsMendum, J. R., Joint Nature Conservation Committee (Great Britain), British Geological Survey.
Classifications
LC ClassificationsQE264 .L49 2009
The Physical Object
Paginationxviii, 721 p. :
ID Numbers
Open LibraryOL23718561M
ISBN 101861074832
ISBN 139781861074836
LC Control Number2009483389

The Lewisian complex or Lewisian gneiss is a suite of Precambrian metamorphic rocks that outcrop in the northwestern part of Scotland, forming part of the Hebridean Terrane and the North Atlantic rocks are of Archaean and Paleoproterozoic age, ranging from – billion years ().They form the basement on which the Torridonian and Moine Supergroup sediments were deposited.

Buy Lewisian, Torridonian and Moine Rocks of Scotland (): NHBS - Edited By: JR Mendum, RG Park, RWH Butler, AD Stewart, AJ Barber and D Flinn, Joint Nature Conservation Committee (Geological Conservation Review).

Lewisian, Torridonian and Moine rocks of Scotland: an introduction --Lewisian Gneiss complex of the Outer Hebrides --Lewisian of the Scottish mainland --Torridonian rocks of Great Britain --Moine thrust belt --Moine (North) --Moine (Central) --Moine (South) --Lewisian and Moine of Shetland.

Details Lewisian, Torridonian and Moine rocks of Scotland EPUB

Series Title: Geological conservation review series,   The geological provenance of Highland Scotland is bound up with that of Greenland and North America to which it was attached until some 55 million years ago.

M3 - Book. SN - SN - VL - T3 - Geological Conservation Review Series. BT - Lewisian, Torridonian and Moine Rocks of Scotland. PB - Joint Nature Conservation Cited by: Request PDF | On Jun 1,J.R.

Mendum and others published Lewisian, Torridonian and Moine Rocks of Scotland | Find, read and cite all the research you need on ResearchGate. The Precambrian foreland rocks, lying west of the Moine Thrust Zone of northwest Scotland, consist of a crystalline, mainly gneissose, basement (the Lewisian complex) overlain by an undeformed or gently tilted sedimentary cover (the Torridonian).

The Moine Thrust Belt or Moine Thrust Zone is a linear tectonic feature in the Scottish Highlands which runs from Loch Eriboll on the north coast kilometres ( mi) south-west to the Sleat peninsula on the Isle of thrust belt consists of a series of thrust faults that branch off the Moine Thrust itself.

Topographically, the belt marks a change from rugged, terraced mountains with. The Lewisian, Torridonian and Moine of Scotland are basement (Lewisian) and cover rocks formed on the eastern margin of Laurentia between about Ma and Ma (i.e. Archaean into the early Neoproterozoic).

The Moine thrust separates relatively undeformed rocks to the west from those more severely deformed to the east. The Torridonian and Moine sequences represent at least two main. ‘The Assynt region, NW Scotland, is a world-famous site to view the Moine Thrust Zone and its foreland geology of metamorphic Lewisian basement overlain by red-bed deposits of the Torridonian and the Cambro-Ordovician shelf sequence.’.

Park's 4 research works with 93 citations and reads, including: The Laxford Shear Zone: an end-Archaean terrane boundary. Stanford Libraries' official online Lewisian tool for books, media, journals, databases, government documents and more.

Lewisian, Torridonian and Moine rocks of Scotland in SearchWorks catalog Skip to search Skip to main content. For this reason the rocks are usually collectively termed ‘the Torridonian and Moine rocks of Scotland book, a term coined by Geikie (in Peach and Horne, ).

The name is derived from the Torridon area of the North-West Highlands, where mountains carved from the rocks of the sequence form some of the most spectacular scenery in the British Isles (Plate 7).

Lewisian, Torridonian and Moine Rocks of Scotland describes the outcrops of Precambrian rocks that lie north-west of the Great Glen in the North-west Highlands of Scotland and in the Outer Hebrides and parts of Shetland.

The rocks and their convoluted tectonic and metamorphic histories chart the first million years of the geological development of Great Britain. Torridonian is an informal stratigraphic name for the Proterozoic reddish-brown sandstones overlying the Lewisian gneiss complex of the NW Scottish mainland.

These sandstones form one of the principal elements of British stratigraphy, comparable in volume (over km 3) to the Lower Old Red Sandstone of eastern Scotland, or the Triassic of.

The Torridonian is a sedimentary sandstone which sits on top of the earliest rocks in map shows the sandstone as orange: it is on the western edge of the mainland, and on part of phically, this is part of the district of Wester Ross. The sandstone is the earliest sedimentary rock in this part of the world.

Well-exposed outcrops of the Lewisian Gneiss Complex occur in the mainland of NW Scotland and in the Outer Hebrides, the latter being an elongate uplifted crustal block with similar dimensions to the Rona Ridge offshore, where significant hydrocarbon discoveries have been made ().Although rare, producing basement reservoirs in a range of fractured igneous and metamorphic host rocks.

The rocks of Loch Monar were once sedimentary and form part of what is known as the ‘Morar Group’ of the Moine metamorphic rocks. They were deposited in shallow seas over a billion years ago and became deeply buried to form part of the continental crust. Loch Monar.

In: Lewisian, Torridonian and Moine rocks of Scotland. (edited by. The northwestern margin of the Caledonian Orogen (– Ma) in Scotland is defined by the Moine Thrust Belt, a major, gently SE-dipping décollement.

The foreland (footwall) of the thrust belt consists of to Ga Lewisian gneisses, unconformably overlain by Torridonian sandstone, in turn covered unconformably by the Cambro-Ordovician.

Some people consider that the Moine rocks represent the marine equivalent of the Torridonian but this is yet to be proved. The oldest rocks in Scotland are also some of the oldest rocks in the world and were formed up to almost million years ago.

Collectively they are called the ‘Lewisian Gneiss’ and the Outer Hebrides forms the. This page lists all the individual rocks in the NW Scotland collection. They are arranged by rock type. [ Igneous] [ Metamorphic] Sedimentary Rocks Conglomerate Sample AST6. Conglomerate, Torridonian (Stoer Group) with large angular clasts of gneiss Mylonite formed from Lewisian Gneiss, Moine Thrust Zone Loch Eriboll Hand specimen.

Summary of the Lewisian geology of the NW Scottish mainland Historical background to Lewisian chronology Subdivision of the mainland Lewisian outcrop The Scourian gneisses Origin of the gneisses Scourian deformation and metamorphism The Inverian event The Scourie dyke swarm.

The Lewisian complex or Lewisian gneiss is a suite of Precambrian metamorphic rocks that outcrop in the northwestern part of Scotland, forming part of the Hebridean Terrane and the North Atlantic Craton.

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These rocks are of Archaean and Paleoproterozoic age, ranging from – Ga. They form the basement on which the Torridonian and Moine Supergroup sediments were deposited. The first geological map of Scotland (one of the first geological maps in the world), by Louis Albert Necker de Saussure indid not differentiate the Dalradian rocks from the Moine of the Northern Highlands or the Lewisian of the Hebridean Terrane, all of which were described as ‘primitive rocks stratified as gneiss, mica slate and clay.

The Moine Succession, which takes its name from the peninsula of a’Mhoine (the Peat Bog) in northern Sutherland, is a group of metasedimentary strata, the oldest of which may have been deposited on the Lewisian basement between and Ma ago (Brook and others, ) and whose youngest members, on current definition (Johnstone, ), pass upwards in the Grampian Highlands into.

Lewisian Gneiss - The Oldest Rocks in Britain - and some of the Oldest in the World. The oldest rocks in Great Britain are to be found here, in the Outer Hebrides.

As well as being spectacularly pretty, these rocks are 3 billion years old, yes they are actually two thirds the age of the Earth (what a thought). Lewisian Gneiss Complex: Building the continental crust ( to million years ago) The crust of NW Scotland, together with parts of Greenland and North America that make up the ancient continent of Laurentia, was built up mainly from igneous rocks that crystallized around.

The Moine Thrust Belt or Moine Thrust Zone is a linear tectonic feature in the Scottish Highlands which runs from Loch Eriboll on the north coast kilometres ( mi) south-west to the Sleat peninsula on the Isle of Skye.

The thrust belt consists of a series of thrust faults that branch off the Moine Thrust itself. Topographically, the belt marks a change from rugged, terraced mountains.

The K/Rb ratios of the Drumbeg rocks are high compared with those of high grade metamorphic rocks from Langoy, Northern Norwayfrom other parts of the Lewisian of Scotland and from East Greenland (r, unpublished data) (figs.

2, 3), as well as granulite facies gneisses frorn Australia [ and Finland The Lewisian gneisses. Geology of the North Atlantic Borderlands — Memoir 7, Pages Precambrian to Modern Framework Late Precambrian Geology of Scotland, England and Wales.

M.A.J. Piasecki, O. van Breemen, A.E.

Description Lewisian, Torridonian and Moine rocks of Scotland PDF

Wright. Abstract. The Late Precambrian rocks of Scotland and those of England and Wales lie on opposite sides of the Iapetus suture, and they represent the contrasting products of Late. THE Precambrian crystalline basement of northwest Scotland, the Lewisian, has been described by various authors1,2.

Sutton and Watson3 defined two distinct metamorphic episodes in the Lewisian. A fault known as the Moine Thrust separates these foundations from those of the neighbouring Northern Highlands. Lewisian rocks.

At up to 3, million years old, the Lewisian rocks are the oldest rocks in the North-west Seaboard and in Scotland as a whole.

They’re also among the world’s oldest rocks.Pub. Id: A () First Page: Last Page: Book Title: M North Atlantic: Geology and Continental Drift Article/Chapter: Torridonian Rocks of Scotland Reviewed: Chapter Northwestern Border of the Orogenic Belt Subject Group: Geologic History and Areal Geology Spec.

Pub. Type: Memoir Pub. Year: Author(s): A. D. Stewart (2) Abstract: In western Scotland, late Precambrian.Start studying Major Structural and Stratigraphic Divisions of the British Isles/02/ Learn vocabulary, terms, and more with flashcards, games, and other study tools.