X-ray fluorescence spectroscopy and microanalysis

Bain, D. C.; McHardy, W. J.; Lachowski, Eric E.

doi:10.1007/978-94-011-0727-3_7

Cited by 5 publications

(1 citation statement)

References 54 publications

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“…Iron followed a similar trend but with lower standard deviations in the 698 high range of 20-27%. The standard deviation for K was also higher in the 699 Torrelaguna samples and T3 and T8 (different from the two samples mentioned 700 above, T9a and T1) in Tortuero, at 20-27% of the average values, and remained 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 32 of clay minerals at individual particle level (Bain et al, 1994) …”

Section: Sequence 558mentioning

confidence: 99%

Low temperature, authigenic illite and carbonates in a mixed dolomite-clastic lagoonal and pedogenic setting, Spanish Central System, Spain

Huggett

Cuadros

Gale

et al. 2016

Applied Clay Science

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Publisher's version available at:__________________________________________________________________________________________ Please note that where the full text version provided on GALA is not the final published version, the version made available will be the most up-to-date full-text (post-print) version as provided by the author(s). Where possible, or if citing, it is recommended that the publisher's (definitive) version be consulted to ensure any subsequent changes to the text are noted. Citation for this version held on GALA:Huggett, J, Cuadros, J, Gale, Andrew S, Wray, David S and Adetunji, Jacob (2016) Low temperature, authigenic illite and carbonates in a mixed dolomite-clastic lagoonal and pedogenic setting, Spanish Central System, Spain. London: Greenwich Academic Literature Archive. Available at: http://gala.gre.ac.uk/15611/ __________________________________________________________________________________________ Contact: gala@gre.ac.uk 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 ABSTRACT 19 20The aim of this study was to further our understanding of the pedogenic and 21 lacustrine modification of clay minerals. Some of these modifications are of 22 special interest because they constitute reverse weathering reactions, rare in 23 surface environments, and because there is not yet an accurate assessment of 24 their global relevance in mineralogical and geochemical cycles. For this study, 25 two sections from the Central System in Spain were selected. Both are sections 26 through the Uppper Cenomanian-Turonian mixed clastic and carbonate 27 succession, containing both calcite and dolomite, in the Sierra de Guadarrama. 28Mid-Turonian sea level fall resulted in the formation of a coastal plain 29 environment in which extensive pedogenesis occurred around saline lagoons. 30The mineralogical changes that have occurred as a result of sedimentation in 31 saline lagoons and as a consequence of pedogenesis are described. Textural 32 relationships indicate that the dolomite cement pre-dates the calcite. Silicate 33 minerals are represented by quartz, kaolinite, illite-smectite, illite, minor 34 plagioclase and alkali feldspar, and trace chlorite and palygorskite. There is a 35 positive correlation between the intensity of pedogenesis and the proportion of 36 illite in the clay assemblage in one of the sections, indicating pedogenic 37 illitisation. In this section, the intensity of the illitisation process increases up, 38 reaching a maximum where pedogenesis is most intense in the middle part, and 39 then decreases as marine influence increases towards the top of the Alc...

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Section: Sequence 558mentioning

confidence: 99%