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flint

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Journal Article
Journal: Interpretation
Published: 21 April 2023
Interpretation (2023) 11 (2): T339–T347.
..., and the uncertainty of the interpretation and labeling process decreases the model’s ability for making accurate predictions. Using the chalk-flint sequence scenario onshore Denmark as an example, we have developed a novel workflow for predicting subresolution thin layers from seismic sections. It entails generating...
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Journal Article
Published: 30 September 2021
Quarterly Journal of Engineering Geology and Hydrogeology (2022) 55 (2): qjegh2021-074.
... Clay contained a higher sand content 41 47 Paleogene Lower London Tertiaries Mottled clay interbedded with sand and pebbles 23 70 Cretaceous Upper Chalk Soft white limestone with abundant flints >130 >200 The London Clay is, in turn, underlain by c. 23 m of Lower London...
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Journal Article
Published: 09 September 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2021) 54 (2): qjegh2020-024.
...U. Lawrence Abstract The Clay-with-flints Formation crops out on the high chalk plateaux in southern England. Changes in terminology are summarized and distinctions from adjacent similar deposits (e.g. Valley Gravel) are detailed. A threefold division of the transition zone between the two deposits...
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Series: Engineering Geology Special Publications
Published: 09 June 2020
DOI: 10.1144/EGSP29.12
EISBN: 9781786204653
... Table 12.1. Recorded geographical distribution of chalk and flint mines in England Area County Number of chalk mine cavities ( C ) Number of flint mine cavities ( F ) Total number of mine cavities Northern outcrops Yorkshire 0 0 0 F , 0 C Lincolnshire 0 0...
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Series: EMU Notes in Mineralogy series
Published: 01 January 2019
DOI: 10.1180/EMU-notes.20.2
EISBN: 9780903056625
... from Pliny’s books, past and current supply areas and, finally, archaeometric provenance issues are addressed for each type of material. As for chalcedony, a comprehensive note on moganite has been included. The next section focuses on chert, flint and jasper. Given the large amount of materials...
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Journal Article
Published: 23 April 2018
Proceedings of the Yorkshire Geological Society (2019) 62 (3): 178–186.
...P. N. Hildreth Abstract Flints are recognized reliable lithostratigraphic markers in chalk sedimentary rocks and may provide an indication of Late Cretaceous palaeogeographic conditions. Their distribution and often characteristic form allow correlation over a wide area, and they may provide...
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Journal Article
Published: 06 April 2018
Proceedings of the Yorkshire Geological Society (2019) 62 (3): 210–216.
... a benthic origin of these flints. Additional evidence suggests that sponges were the causative organism of paramoudra and the majority of primary flint. Photographic and field observations are presented to organize these curious flint structures into recognizable categories and offer an alternative...
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Journal Article
Published: 01 July 2017
American Mineralogist (2017) 102 (7): 1402–1417.
... largely intact during burial diagenesis. The presence and nature of this nano-quartz have not been identified until recently, despite the fact that this quartz is the type present in the Upper Cretaceous-Danian chalk reservoir for oil and gas in the North Sea, both in the flint and as dispersed particles...
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Journal Article
Published: 24 March 2017
Quarterly Journal of Engineering Geology and Hydrogeology (2017) 50 (2): 133–147.
...Mohammed Musa Aliyu; William Murphy; James Anthony Lawrence; Richard Collier Abstract The petrographic and mechanical properties of flints from the Burnham (North Landing, Yorkshire, UK), Seaford (East Sussex, UK, and Dieppe, France), and Lewes Nodular (Mesnil-Val, France) Chalk formations have...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP411.6
EISBN: 9781862396999
... Abstract Recent underwater archaeological surveys recovered hundreds of flint artefacts between depths of 18 and 21 m at Cala Tramontana, a small bay located in the eastern part of Pantelleria Island. Most of the flint artefacts indicate debitage, and are characterized by cores and flakes...
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Journal Article
Published: 09 June 2014
Quarterly Journal of Engineering Geology and Hydrogeology (2014) 47 (3): 223–236.
... of superficial deposits across the Thames Basin is used to define six lithostratigraphic classes of superficial deposits: pre-Anglian Clay-with-Flint deposits; pre-Anglian River Terrace Deposits associated with the ancestral River Thames and its tributaries; Tills formed during the Anglian glaciations; glacio...
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Journal Article
Published: 01 December 2013
European Journal of Mineralogy (2013) 25 (5): 797–805.
...Patrick Schmidt; Ludovic Bellot-Gurlet; Vanessa Léa; Philippe Sciau Abstract The quantitative determination of moganite in flint and chert plays an important role in the characterisation of these silica rocks and in the study of their genesis and evolution. Both Raman and infrared (IR) spectroscopy...
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Journal Article
Published: 01 May 2013
Proceedings of the Yorkshire Geological Society (2013) 59 (3): 177–186.
...P. N. Hildreth Summary: Many flint bands represent significant correlation markers in the lithostratigraphy of the Chalk Group. In the Chalk Group of the English Northern Province (Yorkshire, Lincolnshire, north Norfolk), such bands can be traced with certainty from Flamborough Head in East...
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Journal Article
Journal: Clay Minerals
Published: 01 December 2011
Clay Minerals (2011) 46 (4): 525–537.
...H. Lindgreen; V. A. Drits; A. L. Salyn; F. Jakobsen; N. Springer Abstract In the Upper Cretaceous-Danian North Sea chalk, silica composed of nano-size quartz spheres is dispersed in the chalk matrix, and quartz is present in bands and nodules of flint. In the present investigation of the North Sea...
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Journal Article
Published: 01 November 2011
Quarterly Journal of Engineering Geology and Hydrogeology (2011) 44 (4): 419–444.
... erosion surface, the evidence for syndepositional tectonics in the Chalk, and the recognition of tectonic fractures and strata-bound fracture systems are emphasized. The contrasting physical properties of chalk and flint are discussed and the depth of weathering in the subcrop and outcrop are compared...
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Journal Article
Published: 01 June 2010
Journal of Sedimentary Research (2010) 80 (6): 578–588.
...Heine Buus Madsen; L. Stemmerik Abstract Flint is common in many successions, but since the nodules can be the result of a series of replacement and void filling processes, their origin and broader paleo-oceanographic significance can remain enigmatic. This study addresses the origin of flint...
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Journal Article
Published: 01 May 2005
Vadose Zone Journal (2005) 4 (2): 271–280.
..., the horizontal fractures are more hydraulically active in areas where they intersect a vertical stained fracture or in association with some flint layers. Stains of Fe 3+ and Mn were observed primarily in fractures with a strike of approximately 25° and 175°, suggesting that the water flows preferentially...
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Journal Article
Published: 01 March 2005
Bulletin de la Société Géologique de France (2005) 176 (2): 199–214.
... in flint flows. The Tertiary deposits are limited to small grabens and made of nodular lacustrine limestones with charophytes ascribed to the Middle Eocene. In this southeastern margin of the basin, palaeoweathering products of the Jurassic and Cretaceous, i.e. Clay-with-Jurassic cherts and Clay...
Journal Article
Published: 01 December 2002
Clays and Clay Minerals (2002) 50 (6): 766–770.
...Don M. Triplehorn; Bruce F. Bohor; William J. Betterton Abstract The coarse, non-clay fraction of many flint-like kaolinitic claystones often contains mineral grains diagnostic of the claystone’s origin and, in the case of tonsteins (altered volcanic ashes), may also provide minerals suitable...
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Journal Article
Published: 01 September 2000
Bulletin de la Société Géologique de France (2000) 171 (5): 569–576.
...Benoit Laignel; Robert Meyer Abstract In NW Europe, chalk areas are generally covered with clay-with-flints (CWF). These formations are made of flints with a clayey or silty-clayey matrix. In the literature devoted to CWF, the flint dissolution during the weathering of chalk was poorly studied...