References of "Da Silva, Anne-Christine"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailSedimentology of a Mid-Late Ordovician carbonate mud-mound complex from the Katmandu nappe in central Nepal
Pas, Damien ULg; Da Silva, Anne-Christine ULg; Raj Dhital, Megh et al

in Journal of Asian Earth Sciences (2011), 42(3), 451-466

This sedimentological study of the Godavari quarry is the first relating to the Palaeozoic Tethyan sedimentary rocks of the Katmandu nappe (Central Nepal). Sedimentological analyses led to the ... [more ▼]

This sedimentological study of the Godavari quarry is the first relating to the Palaeozoic Tethyan sedimentary rocks of the Katmandu nappe (Central Nepal). Sedimentological analyses led to the identification of six microfacies belonging to a large carbonate mud-mound complex, which can be divided into mound, flank and off-mound main depositional settings. Identification of two dasycladaceans (Dasyporella cf. silurica (Stolley, 1893) and Vermiporella sp.) in the mound facies gives a Mid-Late Ordovician age to this newly discovered Godavari carbonate mud-mound, which makes this mound one of the oldest ever described in the Asian continent. The mound microfacies are characterized by a high micritic content, the presence of stromatactis and the prevalence of red coloured sediments (the red pigmentation probably being related to organic precipitation of iron). The flank microfacies are characterized by a higher crinoid and argillaceous content and the presence of bio- and lithoclasts concentrated in argillaceous lenses. Finally, the off-mound microfacies show very few bioclasts and a high argillaceous content. Palaeoenvionmental interpretation of microfacies, in terms of bathymetry, leads us to infer that the Godavari mud-mound started to grow in a deep environment setting below the photic and wave action zones and that it evolved to occupy a location below the fair weather wave base. Cementation of cavities within the mound facies underlines a typical transition from a marine to a burial diagenetic environment characterized by: (1) a radiaxial non luminescent feroan calcite cement (marine) showing a bright orange luminescent band in its middle part; (2) a bright zoned orange fringe of automorphic feroan calcite (meteoric phreatic); (3) a dull orange xenomorphic feroan calcite cement in the centre of cavities (burial) and (4) a saddle dolomite within the centre of larger cavities. The faunal assemblage (diversity and relative proportion) of the Godavari mound facies is dominated by crinoids and ostracods, which makes this carbonate mud-mound comparable to the Meiklejohn Peak mounds (Nevada). [less ▲]

Detailed reference viewed: 38 (7 ULg)
Full Text
Peer Reviewed
See detailPrecessional and half-precessional climate forcing of Mid-Devonian monsoon-like dynamics
De Vleeschouwer; Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg et al

in Climate of the Past Discussions (2011), 7

Detailed reference viewed: 16 (7 ULg)
Peer Reviewed
See detailMagnetic susceptibility evolution on Paleozoic sedimentary settings, a clue for past paleoenvironments
Da Silva, Anne-Christine ULg; Pas, Damien ULg; Mabille, Cédric et al

in Suttner; Kido; Piller (Eds.) et al Mid Paleozoic climate and biodiversity. IGCP-596 opening meeting. Abstract Volume (2011)

Detailed reference viewed: 14 (3 ULg)
Peer Reviewed
See detailSedimentology of a continuous Givetian-Frasnian carbonate succession in Sauerland (Germany) and MS comparison with the time-equivalent ones of Ardennes (Belgium) and Moravia (Czech Republic).
Pas, Damien ULg; Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg et al

in Suttner, Thomas; Kido, Erika; Piller, W. E. (Eds.) et al IGCP-596 Mid-Paleozoic climate and biodiversity, 19-24 septembre, Graz, Austria, Abstract book (2011)

Detailed reference viewed: 10 (2 ULg)
Peer Reviewed
See detailSedimentology of a mid-late Ordovician carbonate mud-mound complex from the Katmandu Nappe in Central Nepal.
Pas, Damien ULg; Da Silva, Anne-Christine ULg; Raj Dhital, M. et al

in 13ème congrès Français de Sédimentologie, Dijon. Livre des résumés, 2011, Publ. ASF, Paris, n°68, p270-271. (2011)

Detailed reference viewed: 9 (4 ULg)
Peer Reviewed
See detailSedimentary and diagenetic processes related to mid-Paleocene exposure surface, effects on the carbonate reservoir properties: Southeastern Pyrenean carbonate platform, Spain
Loisy, Corinne; Cerepi, Adrian; Da Silva, Anne-Christine ULg et al

in 13ème congrès Français de Sédimentologie, Dijon. Livre des résumés, 2011 (2011)

Detailed reference viewed: 12 (1 ULg)
Full Text
Peer Reviewed
See detailMagnetic susceptibility evolution in the Eifelian-Givetian Baileux section (Baileux section): complex origin of the magnetic susceptibility signal
Da Silva, Anne-Christine ULg; Dekkers, Mark; Mabille, Cédric et al

in Koptikova, Leona; Hladil, Jindrich; Adamovic, Jiri (Eds.) Miroslav Krs conference: time, magnetism, records, systems and solution. The 2011 Annual IGCP-580 Meeting. Abstract volume (2011)

Detailed reference viewed: 8 (1 ULg)
Peer Reviewed
See detailPrecessional and half-precessional climate forcing of Mid-Devonian monsoon-like dynamics
De Vleeschouwer, David; Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg et al

in Suttner; Kido; Piller (Eds.) et al Mid Paleozoic climate and biodiversity. IGCP-596 opening meeting. Abstract Volume (2011)

Detailed reference viewed: 4 (0 ULg)
Peer Reviewed
See detailSedimentology and magnetic susceptibility of Mobarak Formation (Lower Carboniferous in central and eastern Albroz Mountains, North of Iran)
sardar Abadi, Mehrdad; Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg et al

in Koptikova, Leona; Hladil, Jindrich; Adamovic, Jiri (Eds.) Miroslav Krs conference: time, magnetism, records, systems and solution. The 2011 Annual IGCP-580 Meeting. Abstract Volume (2011)

Detailed reference viewed: 33 (1 ULg)
Peer Reviewed
See detailSedimentology and magnetic susceptibility on a continuous Middle Givetian to Lower Famennian fore-reef succession (Sauerland, Germany): a new example of MS study for long-distance correlations (Germany, Belgium, and Moravia)
Pas, Damien ULg; Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg et al

in Koptikova, Leona; Hladil, Jindrich; Adamovic, Jiri (Eds.) Miroslav Krs conference: time, magnetism, records, systems and solution. The 2011 Annual IGCP-580 Meeting. Abstract Volume (2011)

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailPreliminary study of MS-facies relationship in Bajocian-Bathonian carbonates from eastern and north-eastern Paris Basin
Dechamps, Sylvain; Boulvain, Frédéric ULg; Da Silva, Anne-Christine ULg

in Koptikova, Leona; Hladil, Jindrich; Adamovic, Jiri (Eds.) Miroslav Krs conference: time, magnetism, records, systems and solution. The 2011 Annual IGCP-580 Meeting. Abstract Volume (2011)

Detailed reference viewed: 14 (4 ULg)
Full Text
Peer Reviewed
See detailSedimentology and magnetic susceptibility on a continuous Lower Givetian to Lower Famennian fore-reef succession (Sauerland, Germany) : A new example which reinforce the use of MS for long-distance correlations (Germany, Belgium and Moravia).
Pas, Damien ULg; Da Silva, Anne-Christine ULg; Boulvain, Frédéric ULg et al

Poster (2011)

This study focuses on the continuous Givetian-Frasnian section of the abandoned Burgberg quarry (Messinghausen Anticline, northern margin of the Rhenish Mountains). The exposed section (102 m thick ... [more ▼]

This study focuses on the continuous Givetian-Frasnian section of the abandoned Burgberg quarry (Messinghausen Anticline, northern margin of the Rhenish Mountains). The exposed section (102 m thick) covers a well constraint stratigraphic interval starting at the base of the Givetian (Stritzke 1991;Aboussalam et al., 2003) and according to Stritzke (1991) and our new datations ending within the Lower Famennian. The Middle-Upper Devonian shelf-edge within the Rheinisches Schiefergebirge can be traced from the supposed position along the southern rim of the Dinant Syncline and the Eifel Synclines, northwards along a line connecting the southern margin of the Devonian reefal outcrops of Attendorn and Brilon (Krebs 1967, 1974). The depositional setting of the investigated section corresponds to complex slope and basinal environments where reworked material from the proximal Brilon platform (located to the north) and basin deposits coexist. Thus, this section allows to follow the evolution of the Givetian-Frasnian Brilon platform (e.g., Machel 1990; Stritze 1990, 1991) in a deeper setting. Petrographic analysis of more than 330 thin-sections leads to the identification of 7 microfacies which are integrated into a palaeoenvironmental model. Microfacies curve evolution shows two main trends. A shallowing upward trend ending within a typical proximal slope setting (dismantling of the platform) followed by a deepening upward trend which is characterized by several meter of pelagic mudstone within the upper part of the studied section. Magnetic susceptibility variations in sedimentary rocks, have commonly been interpreted as related to variations of detritic inputs through climatic or sea level changes (Crick et al., 1994). The magnetic susceptibility (MS) study of more than 330 samples from this long-time fore-reef carbonated succession is an opportunity to better constraint our sedimentological interpretations. To do so, we propose a comparison between general MS trends and some parameters such as microfacies and relative sea level fluctuations interpreted on the basis of the sedimentological study. The relatively long stratigraphic interval covered by the Burgberg section offers a good opportunity to compare our data with the time equivalent Devonian sections of the Ardennes (Belgium) and Moravian karst area (Czech Republic) (Boulvain et al., 2010). And thus to test the magnetic susceptibility tool for long-distance correlation between stratigraphically well constraint sections. [less ▲]

Detailed reference viewed: 18 (5 ULg)
Full Text
See detailField trip 1: Givetian and Frasnian of Southern Belgium
Boulvain, Frédéric ULg; Coen-Aubert, Marie; Da Silva, Anne-Christine ULg et al

in Kölner Forum für Geologie und Paläontologie (2011), 20

Detailed reference viewed: 68 (9 ULg)
Full Text
Peer Reviewed
See detailStructural and environmental influence on the Causses dolomitized body (south-east France) and reservoir properties
Da Silva, Anne-Christine ULg; Cerepi, Adrian; Loisy, Corinne et al

in 14th Bathurst meeting, Bristol University, Abstract book (2011)

Detailed reference viewed: 12 (2 ULg)
Full Text
Peer Reviewed
See detailFrom shallow water to deep mound - sedimentology and stromatoporoids paleoecology from the Frasnian (Upper Devonian) of Belgium
Da Silva, Anne-Christine ULg; Kershaw, Stephen; Boulvain, Frédéric ULg

in Kölner Forum für Geologie und Paläontologie (2011), 19

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailLong-expected! - First record of demosponge-type spicules in a Devonian stromatoporoid (Frasnian, Belgium).
Da Silva, Anne-Christine ULg; Kershaw, Stephen; Boulvain, Frédéric ULg et al

in Kölner Forum für Geologie und Paläontologie (2011), 19

Detailed reference viewed: 23 (7 ULg)
Full Text
Peer Reviewed
See detailMixed Middle Jurassic sedimentation from North East of Iran: sedimentological model and carbonate production versus detrital inputs influence
Sardar Abadi, Mehrdad; Da Silva, Anne-Christine ULg; Zamanzadeh

in 14th Bathurst meeting, Bristol University, Abstract Book (2011)

Detailed reference viewed: 14 (3 ULg)