Search Results - "Jessell, Mark"

Implicit modeling of folds and overprinting deformation by Laurent, Gautier, Ailleres, Laurent, Grose, Lachlan, Caumon, Guillaume, Jessell, Mark, Armit, Robin

“…•A numerical framework for modeling folds and associated foliations is proposed.•A fold coordinate system is constructed from structural element…”
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Automated regolith landform mapping using airborne geophysics and remote sensing data, Burkina Faso, West Africa by Metelka, Václav, Baratoux, Lenka, Jessell, Mark W., Barth, Andreas, Ježek, Josef, Naba, Séta

“…We have studied the regolith landform distribution in the area of Gaoua, western Burkina Faso, using an integration of geophysical and remote sensing data…”
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Thermochronological insights into reactivation of a continental shear zone in response to Equatorial Atlantic rifting (northern Ghana) by Fernie, Nicholas, Glorie, Stijn, Jessell, Mark W., Collins, Alan S.

“…West Africa was subjected to deformation and exhumation in response to Gondwana break-up. The timing and extent of these events are recorded in the thermal…”
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Locating and quantifying geological uncertainty in three-dimensional models: Analysis of the Gippsland Basin, southeastern Australia by Lindsay, Mark D., Aillères, Laurent, Jessell, Mark W., de Kemp, Eric A., Betts, Peter G.

“…Geological three-dimensional (3D) models are constructed to reliably represent a given geological target. The reliability of a model is heavily dependent on…”
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Converging flow and anisotropy cause large-scale folding in Greenland's ice sheet by Bons, Paul D., Jansen, Daniela, Mundel, Felicitas, Bauer, Catherine C., Binder, Tobias, Eisen, Olaf, Jessell, Mark W., Llorens, Maria-Gema, Steinbach, Florian, Steinhage, Daniel, Weikusat, Ilka

“…The increasing catalogue of high-quality ice-penetrating radar data provides a unique insight in the internal layering architecture of the Greenland ice sheet…”
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Lower crust exhumation during Paleoproterozoic (Eburnean) orogeny, NW Ghana, West African Craton: Interplay of coeval contractional deformation and extensional gravitational collapse by Block, Sylvain, Jessell, Mark, Aillères, Laurent, Baratoux, Lenka, Bruguier, Olivier, Zeh, Armin, Bosch, Delphine, Caby, Renaud, Mensah, Emmanuel

“…•New lithological and tectono-metamorphic maps of northern Ghana.•Two major contractional phases separated by an episode of extension.•Gravitational collapse…”
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Structural data constraints for implicit modeling of folds by Grose, Lachlan, Laurent, Gautier, Aillères, Laurent, Armit, Robin, Jessell, Mark, Caumon, Guillaume

“…A recent method for modeling folds uses a fold frame with coordinates based on the structural geology of folds: fold axis direction, fold axial surface and…”
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The geochronological evolution of the Paleoproterozoic Baoulé-Mossi domain of the Southern West African Craton by Parra-Avila, Luis A., Kemp, Anthony I.S., Fiorentini, Marco L., Belousova, Elena, Baratoux, Lenka, Block, Sylvain, Jessell, Mark, Bruguier, Olivier, Begg, Graham C., Miller, John, Davis, James, McCuaig, T. Campbell

“…•84 new U-Pb zircon ages across the Paleoproterozoic Baoulé-Mossi domain.•Newly identified U-Pb age patterns including a westward migration of the magmatic…”
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Towards an integrated inversion of geoscientific data: What price of geology? by Jessell, Mark W., Ailleres, Laurent, de Kemp, Eric A.

“…The inversion of multiple geoscientific datasets to define structures in hard rock terrains has for the most part been limited to geophysical methods supported…”
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An updated map of West African mafic dykes by Jessell, Mark, Santoul, Julien, Baratoux, Lenka, Youbi, Nasrrddine, Ernst, Richard E., Metelka, Vaclav, Miller, John, Perrouty, Stephane

“…Studies of mafic dyke swarms may simultaneously provide information on the mechanical, geochemical, geochronological and magnetic environments at the time of…”
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Numerical modelling of porphyroclast and porphyroblast rotation in anisotropic rocks by Griera, Albert, Llorens, Maria-Gema, Gomez-Rivas, Enrique, Bons, Paul D., Jessell, Mark W., Evans, Lynn A., Lebensohn, Ricardo

“…The rotational behaviour of rigid objects in a weaker rock matrix during deformation has been the subject of many field, experimental and numerical modelling…”
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The origin of the potassium‐rich annular zones at the Bosumtwi impact structure, Ghana, investigated by field study, radiometric analysis, and first cosmogenic nuclide data by Niang, Cheikh Ahmadou Bamba, Baratoux, David, Rochette, Pierre, Braucher, Regis, Reimold, Wolf Uwe, Lambert, Philippe, Diallo, Dinna Pathe, Regard, Vincent, Carretier, Sebastien, Jessell, Mark W., Faye, Gayane, Koeberl, Christian

“…The 10.5‐km‐diameter, 1 Ma Bosumtwi impact structure in Ghana is one of the youngest, large impact structures known on Earth. The preservation of the…”
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Utilisation of probabilistic magnetotelluric modelling to constrain magnetic data inversion: proof-of-concept and field application by Giraud, Jérémie, Seillé, Hoël, Lindsay, Mark D, Visser, Gerhard, Ogarko, Vitaliy, Jessell, Mark W

“…We propose, test and apply a methodology integrating 1D magnetotelluric (MT) and magnetic data inversion, with a focus on the characterisation of the…”
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Effect of pre-existing faults on the distribution of lower crust exhumation under extension: numerical modelling and implications for NW Ghana by Feng, Xiaojun, Wang, Enyuan, Amponsah, Prince O., Ganne, Jérôme, Martin, Roland, Jessell, Mark W.

“…3D thermo-mechanical models have been constructed to explore the influence of pre-existing faults on the temporal-spatial distribution of high-grade…”
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Geophysical evidence for a major palaeochannel within the Obosum Group of the Volta Basin, Northern Region, Ghana by Jessell, Mark, Boamah, Kwame, Duodu, John Agyei, Ley-Cooper, Yusen

“…We have identified a 230km long palaeochannel cutting through the sediments of the Obosum Group within the Volta Basin, Ghana. The channel is visible in…”
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The exhumation along the Kenyase and Ketesso shear zones in the Sefwi terrane, West African Craton: a numerical study by Feng, Xiaojun, Wang, Enyuan, Ganne, Jérôme, Martin, Roland, Jessell, Mark

“…High-grade (amphibolite–granulite facies) tectono-metamorphic domains in the Sefwi terrane of Ghana are separated from adjacent lower-grade (greenschist…”
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An open-source, QGIS-based solution for digital geological mapping: GEOL-QMAPS by Perret, Julien, Jessell, Mark W., Bétend, Eliott

“…Digital geological mapping has experienced significant growth over the past three decades due to the advent of commercial geographical information systems,…”
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pynoddy 1.0: an experimental platform for automated 3-D kinematic and potential field modelling by Wellmann, J. Florian, Thiele, Sam T., Lindsay, Mark D., Jessell, Mark W.

“…We present a novel methodology for performing experiments with subsurface structural models using a set of flexible and extensible Python modules. We utilize…”
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Mapping the Dyke Swarms of the Eglab-Yetti Region, Southwestern Algeria by AMARA, Massinissa, BENMAMMAR, Anissa, OUADAHI, Sonia, ERNST, Richard E., BENDAOUD, Abderahmane, JESSELL, Mark, DJEMAÏ, Safouane, HAMOUDI, Mohamed

“…<正>The Eglab-Yetti region of southwestern Algeria is a main part of the Reguibat shield of the West African craton(WAC)which consists of Archean to…”
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A new type of numerical experiment on the spatial and temporal patterns of localization of deformation in a material with a coupling of grain size and rheology by Jessell, Mark W., Siebert, Esteban, Bons, Paul D., Evans, Lynn, Piazolo, Sandra

“…The patterns of localization of deformation in recrystallising materials are investigated via a series of two-dimensional grain-scale numerical simulations…”
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