Journal articles: 'Geology England Midlands'

1

Pharaoh, T. C., T. S. Brewer, and P. C. Webb. "Subduction-related magmatism of late Ordovician age in eastern England." Geological Magazine 130, no. 5 (September 1993): 647–56. http://dx.doi.org/10.1017/s0016756800020951.

Full text

Abstract:

AbstractDeep boreholes show that plutonic and volcanic igneous rocks comprise an important component of the Caledonian basement in eastern England. The isotopic compositions of these rocks reveal that many of them are of late Ordovician age (440–460 Ma), and their geochemical compositions suggest calc–alkaline affinities. The intermediate (diorite-tonalite) plutonic rocks are associated with a prominent northwest–southeast trending belt of aeromagnetic anomalies extending from Derby to St Ives, Hunts., which is interpreted to work the plutonic core of a calc-alkaline magmatic arc. It is inferred that this arc was generated by the subduction of oceanic lithosphere, possibly from the Tornquist Sea, in a south or southwest direction beneath the Midlands Microcraton in late Ordovician times. The age and geochemical composition of concealed Ordovician volcanic rocks in eastern England, and hypabyssal intrusions of the Midlands Minor Intrusive Suite in central England, is compatible with such a hypothesis.

APA, Harvard, Vancouver, ISO, and other styles

2

RAY, DAVID C., CARLTON E. BRETT, ALAN T. THOMAS, and ADRIAN V. J. COLLINGS. "Late Wenlock sequence stratigraphy in central England." Geological Magazine 147, no. 1 (July 28, 2009): 123–44. http://dx.doi.org/10.1017/s0016756809990197.

Full text

Abstract:

AbstractThe late Wenlock Series (Homerian Stage) of the northern Midland Platform (central England) comprises silty mudstones and limestones of the upper part of the Coalbrookdale and overlying Much Wenlock Limestone formations. Based on outcrop studies and borehole data, the sequence stratigraphical interpretation developed for the inliers of the West Midlands is slightly revised, and extended to the stratotype sections along Wenlock Edge. A single third-order cycle of sea-level change is identified, punctuated by a regressive–transgressive episode associated with a higher-order glacioeustatic cycle, allowing the upper Wenlock Series of the area to be divided into two subsequences (A and B). Subsequence A and the early transgressive systems tract began with regression associated with the basal sequence boundary in late Cyrtograptus lundgreni Biozone times. This was followed by a period of slow transgression or stillstand, allowing shallower water carbonate environments to prograde. A minor phase of regression followed, resulting in the generation of the shallowest water deposits of both the Lower Quarried Limestone and Farley members (of the Much Wenlock Limestone and Coalbrookdale formations, respectively). The overlying Subsequence B and the late transgressive systems tract are marked by transgression and a period of rapid sea-level fluctuation and are likely contained within the Gothograptus nassa Biozone. A minor highstand is widely recognizable at this time. The rest of Subsequence B consists of an initial phase of weak progradation (highstand systems tract), followed by a marked regression (falling stage systems tract) culminating in an erosive upper sequence boundary at or close to the top of the Monograptus ludensis Biozone, but within the uppermost Much Wenlock Limestone Formation. Above Subsequence B is a marked transgression into the Lower Elton Formation and the Ludlow Series. Both late Wenlock lowstands and the succeeding flooding events have been recognized on other palaeocontinents, reflecting the eustatic nature of sea-level changes reported here.

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

4

GLOVER, B. W., and A. M. O'BEIRNE. "Anatomy, hydrodynamics and depositional setting of a Westphalian C lacustrine delta complex, West Midlands, England." Sedimentology 41, no. 1 (February 1994): 115–32. http://dx.doi.org/10.1111/j.1365-3091.1994.tb01394.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Busby, J. P., G. S. Kimbell, and T. C. Pharaoh. "Integrated geophysical/geological modelling of the Caledonian and Precambrian basement of southern Britian." Geological Magazine 130, no. 5 (September 1993): 593–604. http://dx.doi.org/10.1017/s0016756800020896.

Full text

Abstract:

AbstractQuantitative modelling of potential field data has been used to test and extend geological sections constructed for the new British Geological Survey Tectonic Map of Britain and Ireland. Three of the profiles cross part of the Anglo-Brabant Massif and provide new information on the nature of the pre-Mesozoic basement. A profile across southern England (passing just to the west of London) suggests that a significant contribution to observed gravity variations in the region results from changes in the thickness of relatively low density Lower Palaeozoic rocks. It also identifies a major deep-seated body with relatively high magnetic susceptibility and low density which is interpreted as a Precambrian cratonic core underlying the southeastern part of the Midlands Microcraton. Profiles across central and eastern England reveal major boundaries within the Precambrian basement, some of which coincide with structures mapped at surface. A number of intrusions of probable Caledonian age have been recognized, including bodies beneath the Widmerpool Gulf and The Wash. Those beneath The Wash appear to lie in a discrete basement region which separates belts of more magnetic basement lying to the northwest and southeast.

APA, Harvard, Vancouver, ISO, and other styles

6

Merriman, R. J., T. C. Pharaoh, N. H. Woodcock, and P. Daly. "The metamorphic history of the concealed Caledonides of eastern England and their foreland." Geological Magazine 130, no. 5 (September 1993): 613–20. http://dx.doi.org/10.1017/s0016756800020914.

Full text

Abstract:

AbstractWhite mica (illite) crystallinity data, derived mostly from borehole samples, have been used to generate a contoured metamorphic map of the concealed Caledonide fold belt of eastern England and the foreland formed by the Midlands Microcraton. The northern subcrop of the fold belt is characterized by epizonal phyllites and quartzites of possible Cambrian age, whereas anchizonal grades characterize Silurian to Lower Devonian strata of the Anglian Basin in the southern subcrop of the fold belt. Regional metamorphism in the Anglian Basin resulted from deep burial and Acadian deformation beneath a possible overburden of 7 km, assuming a metamorphic field gradient of 36 °C km-1. Late Proterozoic volcaniclastic rocks forming the basement of the microcraton show anchizonal to epizonal grades that probably developed during late Avalonian metamorphism. Cambrian to Tremadoc strata, showing late diagenetic alteration, rest on the basement with varying degrees of metamorphic discordance. During early Palaeozoic times, much of the microcraton was a region of slow subsidence with overburden thicknesses of 3.3–5.5 km. However, concealed Tremadoc strata in the northeast of the microcraton reach anchizonal grades and may have been buried to depths of 7 km beneath an overburden of uncertain age.

APA, Harvard, Vancouver, ISO, and other styles

7

Smelror, Morten. "https://2dgf.dk/xpdf/bull39-03-04-83-89.pdf." Bulletin of the Geological Society of Denmark 39 (December 20, 1991): 83–89. http://dx.doi.org/10.37570/bgsd-1991-39-02.

Full text

Abstract:

Palynomorph assemblages recovered from the Cyrtograptus centrifugus graptolite zone on Bornholm contain moderately diverse acritarchs and prasinophycean algae, and minor chitinozoans and miospores. The generally poor preservation is due mainly to a high thermal alteration of the sediments. The indentified Early Wenlock (Sheinwoodian) palynomorph assemblages are closely related to those de-scribed from contemporaneous deposits elsewhere in northwest Europe and U.S.S.R., and they are characterized by common representatives of the genera Leiosphaeridia, Diexallophasis, Oppilatala, Salopidium and Michystridium. The palynomorph assemblages herein described are similar to the marine floras from the open marine deep water deposits of the Wenlock carbonate shelf of the Welsh Borderland and Midlands of England as described by Dorning and Bell (1987) (the Saliopidium granuliferum Assemblage). The presence of Doinasia elongata and Domasia trispinosa, together with ?Deunffia sp. confirm that the Early Wenlock deposits on Bornholm are coeval with the Deunffia - Domasia facies proper as defined by Cramer (1970, 1971, 1971a).

APA, Harvard, Vancouver, ISO, and other styles

8

BUSBY, J. P., and N. J. P. SMITH. "The nature of the Variscan basement in southeast England: evidence from integrated potential field modelling." Geological Magazine 138, no. 6 (November 2001): 669–85. http://dx.doi.org/10.1017/s0016756801005751.

Full text

Abstract:

The Variscides of southeast England are buried beneath post-Carboniferous cover. Interpretations of the basement are based mainly on deep boreholes. Geophysical signatures from the basement are contained within the regional gravity and magnetic data. A gravity stripping exercise has been undertaken to remove the gravitational effect of the post-Variscan cover to generate a residual gravity map. This map is interpreted along with integrated potential field modelling along four long interconnected profiles and compared with a revised pre-Permian subcrop map. The magnetic evidence suggests that Precambrian magnetic basement of the Midlands Microcraton has been buried southwards by north-vergent Variscan thusting over the foreland. North of the Variscan Front, short-wavelength anomalies superimposed upon this deep Precambrian source are due to shallower Silurian and Carboniferous volcanic rocks. Many residual gravity lows within the Rhenohercynian zone may be related to thick, low-density Devonian basins. In the English Channel a change in geophysical signature occurs north of the Portland–Wight Fault, coinciding with phyllites in the basement. Models are presented in which the English Channel magnetic anomalies originate within the pre-Permian basement. Comparisons with anomalies in the Southwestern Approaches suggest that the Portland–Wight Thrust is a terrane boundary, possibly a subduction-related suture, implying southerly directed Variscan subduction.

APA, Harvard, Vancouver, ISO, and other styles

9

Bell, F. G. "A survey of the engineering properties of some anhydrite and gypsum from the north and midlands of England." Engineering Geology 38, no. 1-2 (December 1994): 1–23. http://dx.doi.org/10.1016/0013-7952(94)90021-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Smith, N. J. P., and A. W. A. Rushton. "Cambrian and Ordovician stratigraphy related to structure and seismic profiles in the western part of the English Midlands." Geological Magazine 130, no. 5 (September 1993): 665–71. http://dx.doi.org/10.1017/s0016756800020975.

Full text

Abstract:

AbstractIn England the Cambrian successions include relatively continuous, dominantly argillaceous sequences (Nuneaton area, > 900 m thick) and arenaceous successions punctuated by hiatuses (Malvern, Shropshire). The Tremadoc (lower Ordovician) succeeds paraconformably; it is widespread, dominantly argillaceous and locally very thick (> 2000 m). Deposition of the lower Tremadoc is thought to have been rapid. Uplift of regional extent occurred in early Ordovician (post-Tremadoc) times and inversion of the basins, such as the Tremadoc Worcester Graben, occurred during the Variscan Orogeny. The disposition of the Cambrian–Tremadoc beneath the Upper Llandovery unconformity is thought to reflect the arrangement of basins and highs at that time. Evidence from seismic profiles indicates deposition in half-grabens. In the Welsh Borderland, evidence from outcrops and boreholes suggests that the St David's Series (Middle Cambrian) is locally thickened against syn-depositional faults. The thinning and local absence of the St David's Series across such faults is attributed to the influence of tilt-block highs. Rifting and tilting allowed thick Tremadoc to accumulate (e.g. in a precursor Worcester Graben), but evidence for the direction of thickening is masked by lack of seismic markers and by the effect of pre-landovery erosion.

APA, Harvard, Vancouver, ISO, and other styles

11

JONES, NEIL S., DOUGLAS W. HOLLIDAY, and JOHN A. McKERVEY. "Warwickshire Group (Pennsylvanian) red-beds of the Canonbie Coalfield, England–Scotland border, and their regional palaeogeographical implications." Geological Magazine 148, no. 1 (June 9, 2010): 50–77. http://dx.doi.org/10.1017/s001675681000035x.

Full text

Abstract:

AbstractLate Carboniferous red-beds, < 700 m thick, at outcrop and in the subsurface of the Canonbie Coalfield can be assigned to the Warwickshire Group. They are preserved within the axial part of the Solway Syncline and are divisible into the Eskbank Wood, Canonbie Bridge Sandstone and Becklees Sandstone formations. Sedimentation largely took place on a well-drained alluvial plain, characterized mainly by early, primary oxidation of the strata. Large, northerly-flowing braided river systems were common, with overbank and floodplain fines deposited lateral to the channels; soils formed during intervals of low sediment aggradation. The Canonbie succession includes some of the youngest Carboniferous rocks preserved in the UK. Correlation of the Eskbank Wood Formation is equivocal, but using petrographical, heavy mineral, zircon age dating and palaeocurrent data, the Canonbie Bridge Sandstone Formation can be unambiguously correlated with the Halesowen Formation of Warwickshire, the Pennant Sandstone Formation of South Wales and the offshore Boulton Formation. This suggests that southerly-derived detritus travelled considerable distances from the Variscan highlands of Brittany and/or central Germany across the southern North Sea and UK areas, to a position some hundreds of kilometres north of that previously recognized. The Becklees Sandstone Formation has much in common with the Salop Formation of the English Midlands. It appears to have no preserved equivalent elsewhere in the UK or in the UK sector of the southern North Sea but resembles stratigraphically higher parts of the southern North Sea succession seen in the Dutch sector.

APA, Harvard, Vancouver, ISO, and other styles

12

Spears, D. A. "An investigation of metal enrichment in Triassic Sandstones and porewaters below an effluent spreading site, West Midlands, England." Quarterly Journal of Engineering Geology and Hydrogeology 20, no. 2 (May 1987): 117–29. http://dx.doi.org/10.1144/gsl.qjeg.1987.020.02.02.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Shepley, M. G., A. D. Pearson, G. D. Smith, and C. J. Banton. "The impacts of coal mining subsidence on groundwater resources management of the East Midlands Permo-Triassic Sandstone aquifer, England." Quarterly Journal of Engineering Geology and Hydrogeology 41, no. 3 (August 2008): 425–38. http://dx.doi.org/10.1144/1470-9236/07-210.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Warren, E. A. "The application of a solution-mineral equilibrium model to the diagenesis of Carboniferous sandstones, Bothamsall oilfield, East Midlands, England." Geological Society, London, Special Publications 36, no. 1 (1987): 55–69. http://dx.doi.org/10.1144/gsl.sp.1987.036.01.06.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Gallois, Ramues. "The stratigraphy of the Kimmeridge Clay Formation (Jurassic) of the Vale of Pickering, Yorkshire, UK." Proceedings of the Yorkshire Geological Society 63, no. 4 (May 25, 2021): pygs2021–004. http://dx.doi.org/10.1144/pygs2021-004.

Full text

Abstract:

The Upper Jurassic Kimmeridge Clay Formation (KCF) underlies much of the Vale of Pickering where it is almost wholly concealed by the Cretaceous Speeton Clay Formation and Quaternary deposits. There are few KCF inland or coastal exposures in Yorkshire with the result that the succession was stratigraphically poorly known until the 1970s oil crisis when the British Geological Survey drilled continuously cored boreholes at Marton and Reighton to examine the formation as a possible source of hydrocarbons. These were supplemented in 1987 by continuously cored boreholes drilled at Marton, Reighton, Ebberston and Flixborough by the Institut Français du Pétrole for hydrocarbons research. Taken together, the boreholes have enabled the lithological, palaeontological, geochemical and geophysical characters of the full thickness of the formation to be examined. Comparison of the KCF successions proved in Yorkshire with those in the adjacent North Sea, the East Midlands and the Dorset coast type area, shows marked variations in thickness related to penecontemporaneous faulting. However, there are only minor variations in the lithologies and faunas at any particular stratigraphical level. This appears to be due to a combination of Milankovitch-driven climatic fluctuations and pulsed variations in sea level which combined to produce similar depositional conditions throughout the English KCF at any one time. The chronostratigraphical classification of the KCF developed in southern England has therefore been shown to be applicable to the Yorkshire outcrop and the southern North Sea. The changes in sea level may be eustatic rather than regional events, but there is insufficient palaeontological evidence to enable them to be correlated with confidence with those of the standard Jurassic sea-level curve.

APA, Harvard, Vancouver, ISO, and other styles

16

WILLIAMS, MARK, ADRIAN W. A. RUSHTON, ALAN F. COOK, JAN ZALASIEWICZ, ADAM P. MARTIN, DANIEL J. CONDON, and PAUL WINROW. "Dating the Cambrian Purley Shale Formation, Midland Microcraton, England." Geological Magazine 150, no. 5 (May 3, 2013): 937–44. http://dx.doi.org/10.1017/s0016756813000010.

Full text

Abstract:

AbstractZircons from a bentonite near the base of the Purley Shale Formation in the Nuneaton area, Warwickshire, yield a 206Pb/238U age of 517.22 ± 0.31 Ma. Based on the fauna of small shelly fossils and the brachiopod Micromitra phillipsii in the underlying Home Farm Member of the Hartshill Sandstone Formation, trilobite fragments that are questionably referred to Callavia from the basal Purley Shale Formation, and the presence of trilobites diagnostic of the sabulosa Biozone 66 m above the base of the Purley Shale Formation, the bentonite likely dates an horizon within Cambrian Stage 3, at about the level of the Fallotaspis or basal Callavia Biozone. This is consistent with bentonite ages from other localities in southern Britain, which constrain the age of the lower and uppermost parts of Cambrian Stage 3. The new date provides additional chronological control on the earliest occurrence of trilobites in the Midland Microcraton, a date for the marine transgression at the base of the Purley Shale Formation, and is the first radiometric age from the Cambrian succession of Warwickshire.

APA, Harvard, Vancouver, ISO, and other styles

17

MCINTYRE, ROY W. "A COMPARISON BETWEEN ‘PART OF SCOTLAND’ ON WILLIAM SMITH'S MAPS AND CONTEMPORARY MAPS OF SCOTLAND BY LOUIS-ALBERT NECKER AND JEAN-FRANÇOIS BERGER." Earth Sciences History 39, no. 1 (January 1, 2020): 88–98. http://dx.doi.org/10.17704/1944-6187-39.1.88.

Full text

Abstract:

William Smith's 1815 geologic map A Delineation of the Strata of England and Wales with Part of Scotland did not initially portray the stratum ‘Trap Rocks’. He did, however, include ‘Trap Rocks’ on the much simplified, reduced-scale 1820 map entitled A New Geological Map of England and Wales, a revision of his 1815 map. On the 1820 map, outcrop patterns in the Midland Valley resemble patterns seen on two earlier maps of Scotland; those by Louis-Albert Necker de Saussure in 1808 and Jean-François Berger in 1816. The present comparison examines all the changes Smith made in Scotland between his 1815 map and his 1820 map, and relates them to what is on the two earlier maps by Necker and Berger. What might not be known is how Smith learned of the maps by Necker and Berger and what they showed.

APA, Harvard, Vancouver, ISO, and other styles

18

WALKDEN, GORDON M., and DAVID O. WILLIAMS. "The diagenesis of the late Dinantian Derbyshire-East Midland carbonate shelf, central England." Sedimentology 38, no. 4 (August 1991): 643–70. http://dx.doi.org/10.1111/j.1365-3091.1991.tb01013.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Gehring, A. U. "Diagenesis of ferriferous phases in the Northampton ironstone in the Cowthick quarry near Corby (England)." Geological Magazine 127, no. 2 (March 1990): 169–76. http://dx.doi.org/10.1017/s0016756800013856.

Full text

Abstract:

AbstractBerthierine, siderite and pyrite are the major ferriferous phases in the Northampton ironstone (NIS). Mineralogical and chemical data suggest a formation of these phases in a diagenetic marine environment changing from post-oxic to sulphidic conditions. Berthierine was formed first when the Fe2+ activity in the diagenetic system increased. Later, this phase was partially replaced by siderite and/or pyrite. A second stage of the diagenetic development in the NIS with increasing CO2 partial pressure (PCO2 ) is documented by siderite. The isotopic composition (δ18O mean value: –1.7‰PDB; δ13C mean value: –8.6‰PDB) points to siderite precipitation from a marine porewater environment with a microbial CO2 source. The shift from post-oxic to sulphidic conditions is indicated by the occurrence of pyrite and can be considered as a final stage. The diagenetic processes in the marine environment and the formation of the ferriferous phases were stopped by the influx of brackish or fresh water when the Midland Shelf turned estuarine.

APA, Harvard, Vancouver, ISO, and other styles

20

SOPER, N. J., and N. H. WOODCOCK. "The lost Lower Old Red Sandstone of England and Wales: a record of post-Iapetan flexure or Early Devonian transtension?" Geological Magazine 140, no. 6 (November 2003): 627–47. http://dx.doi.org/10.1017/s0016756803008380.

Full text

Abstract:

Illite crystallinity data from the Silurian slate belts of England and Wales indicate anchizone to low epizone metamorphism during the Acadian deformation in late Early Devonian time. This metamorphic grade implies a substantial overburden, now eroded, of Lower Devonian non-marine sediments of the Old Red Sandstone (ORS) magnafacies. A minimum 3.5 km pre-tectonic thickness of ‘lost’ ORS is estimated in the southern Lake District and comparable thicknesses in North Wales and East Anglia. Tectonically driven subsidence of the underlying Avalonian crust is required to accommodate such thicknesses of non-marine sediment. One proposed mechanism is flexure of the Avalonian footwall during convergence that continued from Iapetus closure in the Silurian until Acadian cleavage formation in the Emsian. The evidence for this model in the critical area of northwest England is reviewed and found to be unconvincing. An alternative model is developed following a recent suggestion that the Early Devonian was a period not of continued convergence but of orogen-wide sinistral transtension. Transtensional accommodation of the lost ORS is evidenced by Early Devonian extensional faults, by synchronous lamprophyric magmatism, and by compatibility with previously diagnosed sediment provenance patterns. A summary of Siluro-Devonian tectonostratigraphy for Britain south of the Highland Border emphasizes that, unlike the Scottish Highlands, this area was not affected by the Scandian Orogeny, but was by the Acadian. An important period of sinistral transtension in the Early Devonian (c.420–400 Ma) was common to both regions. This was a time of high heat flow, lamprophyric and more evolved magmatism, and major southward sediment transport, involving mainly recycled metamorphic detritus from the Highlands and from contemporaneous volcanicity. Old Red Sandstone, deposited in coalescing transtensional basins over much of Britain from the Midland Valley to the Welsh Borders, was largely removed and recycled southward during Acadian inversion.

APA, Harvard, Vancouver, ISO, and other styles

21

Bateman, Richard M., and James Rose. "Fine sand mineralogy of the early and middle Pleistocene Bytham Sands and Gravels of Midland England and East Anglia." Proceedings of the Geologists' Association 105, no. 1 (January 1994): 33–39. http://dx.doi.org/10.1016/s0016-7878(08)80136-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Ray, D. C. "The correlation of Lower Wenlock Series (Silurian) bentonites from the Lower Hill Farm and Eastnor Park boreholes, Midland Platform, England." Proceedings of the Geologists' Association 118, no. 2 (January 2007): 175–85. http://dx.doi.org/10.1016/s0016-7878(07)80034-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Donovan, Stephen K. "Where are all the crinoids? An enigma of the Lower Carboniferous (Mississippian) White Peak of midland England." Geology Today 29, no. 3 (May 2013): 108–12. http://dx.doi.org/10.1111/gto.12010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

RAYMOND, A. C., and D. G. MURCHISON. "The relationship between organic maturation, the widths of thermal aureoles and the thicknesses of sills in the Midland Valley of Scotland and Northern England." Journal of the Geological Society 148, no. 2 (March 1991): 215–18. http://dx.doi.org/10.1144/gsjgs.148.2.0215.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

"A review of: “Lime Stabilisation (1996)”: East Midlands Group The Institution of Civil Engineers England: Thomas Telford Publishing, Thomas Telford Services Ltd, Thomas Telford House, 1 Heron Quay, London E14 4JD England tel: 44-0171-987-6999; fax: 44-0171-538-4101." International Journal of Surface Mining, Reclamation and Environment 11, no. 3 (January 1997): IV. http://dx.doi.org/10.1080/09208119708944073.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Cózar, P., and I. D. Somerville. "Serpukhovian in Britain: use of foraminiferal assemblages for dating and correlating." Journal of the Geological Society, December 17, 2020, jgs2020–170. http://dx.doi.org/10.1144/jgs2020-170.

Full text

Abstract:

Analysis of foraminiferal assemblages from the Viséan-Serpukhovian boundary interval in Britain has led to the recognition that levels correlated with the first occurrence of Lochriea ziegleri at the base of the Serpukhovian Stage can be established by the foraminifer Neoarchaediscus gregorii in England and Scotland, which first occurs from the Single Post and Cockleshell limestones in northern England and laterally equivalent levels, as well as Asteroarchaediscus bashkiricus, and A. rugosus (except for South Wales). Contrary to some previous studies, the base of the Serpukhovian does not equate with the base of the Namurian (Pendleian Substage), but lies approximately at the early-late Brigantian boundary, based on the first occurrence of Neoarchaediscus postrugosus. Four foraminiferal assemblages are distinguished in the early Serpukhovian (7-10) and four assemblages in the late Serpukhovian (11-14). Despite the contrast in facies, it is now recognised for the first time that throughout the Midland Valley of Scotland, northern England and South Wales. the foraminiferal assemblages from shallow-water platform facies are completely compatible with the ammonoid subzones from deep-water basinal facies, with no apparent mismatches. There appears to be close comparability of foraminiferal assemblages and first appearance datums of marker species with most of the international foraminiferal zonal schemes in Russia.Supplementary material:https://doi.org/10.6084/m9.figshare.c.5240408

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Geology England Midlands'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles