Relevant bibliographies by topics / Geology – England – Lundy Island

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Academic literature on the topic 'Geology – England – Lundy Island'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Geology – England – Lundy Island"

1

Thorpe, Richard S., Andrew G. Tindle, and Olwen Williams-Thorpe. "Radioelement distribution in the Tertiary Lundy granite (Bristol Channel, UK)." Geological Magazine 132, no. 4 (July 1995): 413–25. http://dx.doi.org/10.1017/s0016756800021476.

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AbstractThe radioelement distribution and content of the Lundy granite, a coarse-grained megacrystic granite of Tertiary age, has been measured using a portable gamma-ray spectrometer in order to assess fractionation and alteration processes in the granite. Results indicate a systematic variation of K, Th and U (with a few notable exceptions) that follows a partially concentric distribution to lower concentrations inland. The plateau region of the island (particularly the southern half) is relatively depleted in all radioelements. Over the island, measurements of K vary from 1.3–4.9 wt %, Th varies from 5.0–20.3 ppm and U varies from 2.0–12.5 ppm. A petrographic, electron microprobe and autoradiography examination of the granite indicates that the radioelements mainly reside in discrete major and accessory minerals, of which K-feldspar (K), biotite (K), monazite (Th), xenotime (U), tungsteniferous columbite (U) and uraninite (U) are the most important. Uraninite is rare, being preserved only in fresh samples which come mainly from abandoned quarries. Mass balance modelling indicates that up to 76.6% of uranium could reside in uraninite and where this has been leached by secondary processes such as hydrothermal alteration or weathering then the present radioelement content no longer reflects the original rock composition. Fission track evidence is presented to show the pathways along which uranium has been mobilized from or within the granite. Secondary sites of radioelements include fractures cross-cutting all major minerals (but especially quartz), grain boundaries, altered cores of plagioclase feldspar and occasionally yellowy brown mixed chlorite/smectite replacement product after biotite. Biotite itself may exhibit secondary tracks along cleavage traces. Combined effects of crystal fractionation (primary variation) and secondary alteration best explain the distribution of radioelements, with K controlled by fractionation of the major phases K-feldspar and biotite, Th by fractionation of the accessory mineral monazite (±xenotime and uraninite) and U contents by uraninite and tungsteniferous columbite. Secondary processes have removed much of the uraninite leaving behind indeterminate Fe—U material along fractures and residual U (and Th) enrichment within altered major minerals. There is some evidence to suggest that late radioelement-bearing fluids precipitated monazite and uraniferous zircon along fractures during the waning stages of magmatic activity.
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2

Stratford, James M. C., and Jonathan C. Aitchison. "Geochemical evolution within a Devonian intra-oceanic island arc: The Gamilaroi terrane, southern New England orogen, Australia." Island Arc 6, no. 2 (June 1997): 213–27. http://dx.doi.org/10.1111/j.1440-1738.1997.tb00171.x.

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3

Lovegrove, Jack, Andrew J. Newell, David I. Whiteside, and Michael J. Benton. "Testing the relationship between marine transgression and evolving island palaeogeography using 3D GIS: an example from the Late Triassic of SW England." Journal of the Geological Society 178, no. 3 (January 21, 2021): jgs2020–158. http://dx.doi.org/10.1144/jgs2020-158.

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The Rhaetian transgression marked a major change in landscape. The Permian and Triassic had been a time of terrestrial conditions across Europe, including much of mainland UK, as well as the North Sea and Irish Sea, represented by red bed clastic successions. Seas flooded across Europe at 205.7 Ma and the shift from terrestrial to marine environments is marked in the UK by the switch from the red beds of the Mercia Mudstone Group to the black mudstones and shelly limestones and sandstones of the Penarth Group. The area around Bristol was marked by a complex landscape in which an archipelago of islands of Carboniferous limestone was formed in the new shallow seas. The application of new methods in geographical information systems allows a detailed exploration of a number of conformable surfaces, the unconformity between the underlying Paleozoic rocks and the overlying Mesozoic strata, as well as levels within the latest Triassic sediments, marking the advance of the sea and interactions with the coeval tectonics, which caused some islands to rise and some basins to descend. The new geographical information system models show a sequence of palaeogeographical reconstructions of the archipelago and relate this to the island tetrapod faunas, which show strong evidence of the species–area effect.Supplementary material: Supplementary tables S1-S6 and 2D island map GIS files are available at https://doi.org/10.6084/m9.figshare.c.5273256
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4

Getty, Patrick R. "Megapezia longipes Willard and Cleaves 1930 from the Pennsylvanian Rhode Island Formation of Massachusetts: ichnotaxonomic status." Atlantic Geology 52 (April 10, 2016): 119. http://dx.doi.org/10.4138/atlgeol.2016.006.

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The type and only specimen of the ichnospecies Megapezia longipes, from the Pennsylvanian Rhode Island Forma-tion of Plainville, Massachusetts, consists of two poorly defined tracks, one made by a manus and the other by a pes, rather than a single pedal imprint. Whereas the type species of Megapezia, Megapezia pineoi, has tetradactyl pedal imprints, the pes imprint of Megapezia longipes is pentadactyl, a feature that precludes assignment to this ichnogenus. Rather, the tracks share two characteristics with the ichnogenus Matthewichnus, namely elongate digits II and III on the manus, and a pes imprint oriented anterolaterally to the manus imprint, and are thus tentatively reassigned to that ichnogenus. Cf. Matthewichnus longipes is retained as a separate ichnospecies pending the collection of additional ma-terial that can be compared with other species within the ichnogenus. With the tentative reassignment of the Plainville tracks to Matthewichnus, Megapezia becomes monospecific and is no longer recorded in New England. The tracks are the first known occurrence of Matthewichnus from this region.
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5

WILLIAMS, MARK, PHILIP STONE, DAVID J. SIVETER, and PAULINE TAYLOR. "Upper Ordovician ostracods from the Cautley district, northern England: Baltic and Laurentian affinities." Geological Magazine 138, no. 5 (September 2001): 589–607. http://dx.doi.org/10.1017/s0016756801005726.

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The Cautley Mudstone Formation and Cystoid Limestone Member of the Ashgill Formation (Windermere Supergroup; Ashgill Series), from the Cautley district of northern England, has yielded an ostracod fauna of more than 30 species. Many of these have short ranges, permitting recognition of stratigraphically successive Pusgillian–lower Cautleyan, middle–upper Cautleyan, and Rawtheyan ostracod faunas. Several species are also known from the upper Ordovician of North America (Anticosti Island), Scotland (Girvan district) and the Baltic region (Estonia, glacial erratic boulders of northern Germany), providing evidence to correlate upper Ordovician successions in these areas. The ostracods include abundant podocopes, at some horizons accounting for more than 80% of the fauna. Binodicopes are also common, but palaeocopes are rare. Assemblages are typical of a clastic dominated open marine shelf setting. Diversity at most horizons is low (c. 3–5 species), but reaches a peak of between 13–14 species in middle Cautleyan horizons. Lower diversity at Pusgillian and Rawtheyan horizons coincides with the encroachment of deeper marine-shelf facies which were probably hostile to Ordovician benthonic ostracods. Some of the ostracods (particularly Aechmina) have distributions suggesting tolerance of a range of mid- to deep shelf benthonic palaeoenvironments, but none were pelagic. During Ashgill times the Cautley district (part of palaeocontinental Avalonia) was replete with ostracod genera and species which also occur in the Baltic region (palaeocontinental Baltica; more than 90% generic similarity) and to a lesser, but nonetheless significant extent in North America and Scotland (parts of palaeocontinental Laurentia). Such trans-Tornquist Sea and Iapetus Ocean distributional patterns add to previous ostracod data that support models which show palaeogeographical proximity of Avalonia and Baltica, and Avalonia and Laurentia, by Ashgill times. The widely cited observation, that trans-Iapetus ostracod faunas remained strictly provincial until the mid-or late Silurian, cannot be sustained.
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6

DALLMEYER, R. D., O. D. HERMES, and J. I. GIL-IBARGUCHI. "40Ar/39mineral ages from the Scituate Granite, Rhode Island: implications for Late Palaeozoic tectonothermal activity in New England." Journal of Metamorphic Geology 8, no. 2 (March 1990): 145–57. http://dx.doi.org/10.1111/j.1525-1314.1990.tb00462.x.

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7

RAY, DAVID C., ADRIAN V. J. COLLINGS, GRAHAM J. WORTON, and GAVIN JONES. "Upper Wenlock bentonites from Wren's Nest Hill, Dudley: comparisons with prominent bentonites along Wenlock Edge, Shropshire, England." Geological Magazine 148, no. 4 (April 19, 2011): 670–81. http://dx.doi.org/10.1017/s0016756811000288.

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AbstractThe upper Wenlock Series (Homerian Stage) of the northern Midland Platform, England, contains numerous volcanic bentonite clay layers. At Wren's Nest Hill, Dudley, 15 bentonites have been investigated and comparisons with the type-Wenlock have been made by means of two key sections along Wenlock Edge, Shropshire. In total 22 bentonites have been investigated and their clay and sand-grade mineralogies determined. Rare earth element (REE) and yttrium concentrations of apatite grains contained within ten of the bentonites have been established allowing geochemical fingerprinting as an indication of provenance of source magmas and identification of geochemical marker beds. Based on the analysis of REE and yttrium concentrations it seems likely that the majority of these bentonites originated from a granodiorite magmatic source. Comparisons with published Llandovery and lower Wenlock age bentonites indicate generally more enrichment in light REEs relative to heavy REEs. In addition, close geochemical similarities between bentonites along Wenlock Edge and at Wren's Nest Hill strongly argue for their presence as precise stratigraphic equivalents within the upper Much Wenlock Limestone Formation. These correlations are further supported by geophysical data from borehole wire-line logs across the West Midlands. Finally, a chemically distinct mid-Homerian episode of volcanism is identified and represents a potentially important marker interval between the study area and other similarly aged bentonites reported from the Island of Gotland, Sweden.
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8

STONE, B. "Pleistocene glacial and interglacial stratigraphy of New England, Long Island, and adjacent Georges Bank and Gulf of Maine1." Quaternary Science Reviews 5 (1986): 39–52. http://dx.doi.org/10.1016/s0277-3791(86)80007-5.

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9

Stone, Byron D., and Harold W. Borns. "Pleistocene glacial and interglacial stratigraphy of New England, Long Island, and adjacent Georges Bank and Gulf of Maine." Quaternary Science Reviews 5 (January 1986): 39–52. http://dx.doi.org/10.1016/0277-3791(86)90172-1.

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10

Richter, Martha, and M. R. A. Thomson. "First Aspidorhynchidae (Pisces: Teleostei) from Antarctica." Antarctic Science 1, no. 1 (March 1989): 57–64. http://dx.doi.org/10.1017/s0954102089000106.

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A new fossil teleost, belonging to the family Aspidorhynchidae Nicholson & Lydekker, Aspidorhynchus antarcticus sp. nov., was obtained from a block of reworked Upper Jurassic tuffaceous mudstone in the lower (Albian) part of the mid-Cretaceous Whisky Bay Formation of James Ross Island, Antarctic Peninsula. Additional material, assignable to Aspidorhynchus sp., was collected from in situ Upper Jurassic marine rocks (Nordenskjöld Formation) at Longing Gap, northern Antarctic Peninsula. Not only is this the first reported occurrence of the family from Antarctica, it is also the first unequivocal record of Aspidorhynchus outside Europe; prior to this discovery, the genus had only been reported with certainty in marine deposits from the Middle Jurassic to Lower Cretaceous of England, France and Germany. This is the earliest neopterygian fish so far recovered from marine rocks in the Antarctic.
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Books on the topic "Geology – England – Lundy Island"

1

J, Tracy Robert, and New England Intercollegiate Geological Conference. Meeting, eds. New England Intercollegiate Geological Conference: 77th Annual Meeting, Yale University, New Haven, Connecticut, October 4, 5 and 6, 1985 : Guidebook for fieldtrips in Connecticut and adjacent areas of New York and Rhode Island. Hartford, CT: Connecticut Geological and Natural History Survey, 1985.

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2

Lee, Simon. Lundy Island Through Time. Amberley Publishing, 2011.

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3

Lundy: A Landmark 50 Years. Amberley Publishing, 2019.

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4

Clayton, Mathew. Lundy, Rockall, Dogger, Fair Isle: A celebration of the Islands around Britain. 2015.

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5

Society, British Geological. Geology of the Country Around Aberdaron, Including Bardsey Island (Memoir for 1:50,000 Geological Sheet 133 (England and Wales)). Stationery Office Books (TSO), 1994.

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6

M, Flanagan Sarah, and Geological Survey (U.S.), eds. Water-quality assessment of the New England Coastal Basins in Maine, Massachusetts, New Hampshire, and Rhode Island: Environmental settings and implications for water quality and aquatic biota. Pembroke, N.H: U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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M, Flanagan Sarah, and Geological Survey (U.S.), eds. Water-quality assessment of the New England Coastal Basins in Maine, Massachusetts, New Hampshire, and Rhode Island: Environmental settings and implications for water quality and aquatic biota. Pembroke, N.H: U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Book chapters on the topic "Geology – England – Lundy Island"

1

FitzGerald, Duncan M., Peter S. Rosen, and Sytze van Heteren. "New England Barriers." In Geology of Holocene Barrier Island Systems, 305–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78360-9_8.

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Cressy, David. "God’s Islands." In England's Islands in a Sea of Troubles, 99–129. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198856603.003.0007.

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This chapter examines the religious culture and ecclesiastical arrangements of various island communities, showing how devotional activities and godly discipline were affected by politics and custom. The Isle of Wight was part of the Diocese of Winchester, with patterns of conformity and dissent similar to those of the mainland. Lundy was extra-parochial, and forgotten by the bishops of Exeter. The Scillies, too, belonged to the diocese of Exeter, but episcopal influence was almost invisible. The Isle of Man had its own bishop, but godly conformity was rarely attained. Religious radicals reached most islands in the decades of revolution, and lingered or revived in the later seventeenth century. The Channel Islands, as ever, were anomalous, having adopted a Presbyterian discipline under Elizabeth I. Jersey was brought into conformity with England’s prayer book and canons, at least officially, in the reign of James I, but Presbyterianism continued in Guernsey until the Restoration. Each island experienced conflicts in the later seventeenth century over worship, discipline, conformity, and dissent. The disputes of laity and clergy, deans and bailiffs, and governors and the godly formed an offshore drama against the continuing development of the national Church of England.
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