References of "Streel, Maurice"
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See detailFamennian
Thorez, J; Dreesen, R; Streel, Maurice ULg

in Geologica Belgica (2006), 9(1/2), 27-45

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See detailStrunian
Streel, Maurice ULg; Brice, D; Mistiaen, B

in Geologica Belgica (2006), 9(1/2), 105-109

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See detailGlaciaçoes neodevonianas E Eocarboniferas na America do sul.
Caputo, M.V.; Streel, Maurice ULg; Melo, H.G. et al

in Simposio da Amazonias (2006)

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See detailGlaciaçoes Eocarboniferas nas bacias do Norte do Brazil.
Caputo, M.V.; Streel, Maurice ULg; Melo, H.G. et al

in Simposio da Amazonias (2006)

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See detailSubdivision of the Famennian Stage into four substages and correlation with the neritic and continental Miospore Zonation
Streel, Maurice ULg

in Subcommission on Devonian Stratigraphy Newsletter (2005), 21

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See detailRaymond Bouillenne
Gaspar, T; Streel, Maurice ULg; Bernier, G et al

in Annuaire de l’Académie Royale de Belgique (2005)

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See detailLate Famennian correlation by miospores between the Refrath 1 Borehole (Bergisch Gladbach-Paffrath Syncline, Germany) and the reference section of Chanxhe (Dinant Syncline, Belgium).
Streel, Maurice ULg; Hartkopf-Fröder, C

in Carnets de Géologie = Notebooks on Geology (2005), Memoir 2005/02(10),

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See detailThe Middle-Devonian proto-ovule Runcaria heinzelinii Stockmans 1968
Gerrienne, Philippe ULg; Meyer-Berthaud, B.; Fairon-Demaret, Muriel ULg et al

Conference (2005)

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See detailPremier bilan des analyses récentes du « Pavé de Charlemagne » dans les Hautes-Fagnes à Waimes (Lg.)
Hoffsummer, Patrick ULg; Damblon, Freddy; Eeckhout, Jérôme ULg et al

in Archaeologia mediaevalis (2005), 28

This is a presention of different methods of archaeology and archaeometry (palynology, dendrochronology, geomorphology) to date and understand the function of this wooden and stone route infrastructure in ... [more ▼]

This is a presention of different methods of archaeology and archaeometry (palynology, dendrochronology, geomorphology) to date and understand the function of this wooden and stone route infrastructure in a wet deep soil environment. This route is probably from the High Middle Age time with a modification dendrodated at the beginning of the 9th century. the descovery of a old wooden car is also described. [less ▲]

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See detailLa Via Mansuerisca, première cause de pollution dans les Hautes Fagnes ?
Renson, V.; Fagel, Nathalie ULg; Streel, Maurice ULg et al

in Miscellanea Faniae (2005), 8

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See detailRuncaria, a middle Devonian seed plant precursor
Gerrienne, Philippe ULg; Meyer-Berthaud, B.; Fairon-Demaret, Muriel ULg et al

in Science (2004), 306(5697), 856-858

The emergence of the seed habit in the Middle Pateozoic was a decisive evolutionary breakthrough. Today, seed plants are the most successful plant lineage, with more than 250,000 living species. We have ... [more ▼]

The emergence of the seed habit in the Middle Pateozoic was a decisive evolutionary breakthrough. Today, seed plants are the most successful plant lineage, with more than 250,000 living species. We have identified a middle Givetian (385 million years ago) seed precursor from Belgium predating the earliest seeds by about 20 million years. Runcaria is a small, radially symmetrical, integumented megasporangium surrounded by a cupule. The megasporangium bears an unopened distal extension protruding above the multilobed integument. This extension is assumed to be involved in anemophilous pollination. Runcaria sheds new light on the sequence of character acquisition leading to the seed. [less ▲]

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See detailBiochemostratigraphy of the Devonian-Carboniferous boundary Global Stratotype Section and Point, Griotte Formation, La Serre, Montagne Noire, France
Brand, U.; Legrand-Blain, M.; Streel, Maurice ULg

in Palaeogeography Palaeoclimatology Palaeoecology (2004), 205(3-4), 337-357

The Griotte Formation and the base of Bed 89 exposed at La Serre, Montagne Noire, France represent the Global Stratotype Section and Point (GSSP) for the Devonian-Carboniferous (D-C) boundary. This study ... [more ▼]

The Griotte Formation and the base of Bed 89 exposed at La Serre, Montagne Noire, France represent the Global Stratotype Section and Point (GSSP) for the Devonian-Carboniferous (D-C) boundary. This study represents the geochemical work on brachiopods and matrix covering the Siphonodella praesulcata to Siphonodella sulcata Zones at the GSSP. Values of Sr-87/Sr-86 of unaltered brachiopods provide the most powerful biochemostratigraphic tool in recognizing and correlating the Devonian-Carboniferous boundary on a global scale. The frequency and variations of the latest Devonian Sr-87/Sr-86 trend (0.708167 +/- 0.000042) are invariant but the population means are similar (p = 1.000) to the essentially pronounced trend for the post-boundary Carboniferous (0.708165 +/- 0.000054) brachiopods from the GSSP and supplementary sections. The Devonian-Carboniferous boundary Sr-87/Sr-86 value based on unaltered brachiopod samples from within 0.2 m of either side of the boundary is 0.708231 +/- 0.000021 (NBS 987 = 0.710240). Oxygen isotope values of unaltered brachiopods from the Devonian side of the boundary are -1.99 +/- 2.29% (PDB) and those from the Carboniferous side are -3.08 +/- 0.51% (PDB, p = 0.229), which are from within to outside the range recorded in Recent low-latitude counterparts. Carbon isotope values for the Devonian brachiopods with +4.37 +/- 1.69% (PDB) are dissimilar to those from the Carboniferous side of the boundary with +1.93 +/- 0.49% (PDB; p = 0.0001), but both mostly overlap with the range observed in Recent low-latitude brachiopods. The large positive excursions in delta(13)C (Delta5.5%) and 8180 (Delta6.9%) of the unaltered brachiopods reflect changing oceanographic conditions of the La Serre Sea and possibly of the global oceans during the uppermost Middle and Upper S. praesulcata Subzones. Oxygen isotope trend may reflect, in part, a climatic response of a rapid, short and distinct glacial event during the upper Middle S. praesulcata Subzone. This cryogenic event of a larger oceanographic/climatic shift correlates, in part, to the Hangenberg Event sensu lato. Excursions in the seawater-Sr-87 bracket the onset and offset of the glacial event, reflecting changes in continental weathering patterns and processes and with it changes in riverine fluxes. In contrast, the carbon isotope shift although related to the cooling trend is probably associated with a drawdown of atmospheric CO2 and/or burial of organic matter. The biochemostratigraphic values/contents and trends presented in this study, in conjunction with biostratigraphic observations, facilitate the correlation of sequences at Hasselbachtal and Wocklum (Germany), Nanbiancun (China) and Starks Road and Hannibal (Missouri, USA). (C) 2004 Elsevier B.V All rights reserved. [less ▲]

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