Foreland exhumation controlled by crustal thickening in the Western Alps
In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Schwartz, Stéphane [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Rechteinformationen: |
Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Geology - Boulder, Colo. : Soc., 1973, 45(2017), 2, Seite 139-142 |
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| Übergeordnetes Werk: |
volume:45 ; year:2017 ; number:2 ; pages:139-142 |
| Links: |
|---|
| DOI / URN: |
10.1130/G38561.1 |
|---|
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| 520 | |a In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. | ||
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10.1130/G38561.1 doi PQ20170301 (DE-627)OLC1991115717 (DE-599)GBVOLC1991115717 (PRQ)c841-23c048cc259319a8d8d931f08fd0cac80974b9664d51832e3e913847dcbbfba70 (KEY)0163754120170000045000200139forelandexhumationcontrolledbycrustalthickeningint DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Schwartz, Stéphane verfasserin aut Foreland exhumation controlled by crustal thickening in the Western Alps 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Sedimentary basins Crust Earth Plate tectonics Mountains Sedimentary geology Basins Deformation Gautheron, Cécile oth Audin, Laurence oth Dumont, Thierry oth Nomade, Jérôme oth Barbarand, Jocelyn oth Pinna-Jamme, Rosella oth van der Beek, Peter oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 2, Seite 139-142 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:2 pages:139-142 http://dx.doi.org/10.1130/G38561.1 Volltext http://search.proquest.com/docview/1861329751 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 2 139-142 |
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10.1130/G38561.1 doi PQ20170301 (DE-627)OLC1991115717 (DE-599)GBVOLC1991115717 (PRQ)c841-23c048cc259319a8d8d931f08fd0cac80974b9664d51832e3e913847dcbbfba70 (KEY)0163754120170000045000200139forelandexhumationcontrolledbycrustalthickeningint DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Schwartz, Stéphane verfasserin aut Foreland exhumation controlled by crustal thickening in the Western Alps 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Sedimentary basins Crust Earth Plate tectonics Mountains Sedimentary geology Basins Deformation Gautheron, Cécile oth Audin, Laurence oth Dumont, Thierry oth Nomade, Jérôme oth Barbarand, Jocelyn oth Pinna-Jamme, Rosella oth van der Beek, Peter oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 2, Seite 139-142 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:2 pages:139-142 http://dx.doi.org/10.1130/G38561.1 Volltext http://search.proquest.com/docview/1861329751 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 2 139-142 |
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10.1130/G38561.1 doi PQ20170301 (DE-627)OLC1991115717 (DE-599)GBVOLC1991115717 (PRQ)c841-23c048cc259319a8d8d931f08fd0cac80974b9664d51832e3e913847dcbbfba70 (KEY)0163754120170000045000200139forelandexhumationcontrolledbycrustalthickeningint DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Schwartz, Stéphane verfasserin aut Foreland exhumation controlled by crustal thickening in the Western Alps 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Sedimentary basins Crust Earth Plate tectonics Mountains Sedimentary geology Basins Deformation Gautheron, Cécile oth Audin, Laurence oth Dumont, Thierry oth Nomade, Jérôme oth Barbarand, Jocelyn oth Pinna-Jamme, Rosella oth van der Beek, Peter oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 2, Seite 139-142 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:2 pages:139-142 http://dx.doi.org/10.1130/G38561.1 Volltext http://search.proquest.com/docview/1861329751 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 2 139-142 |
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10.1130/G38561.1 doi PQ20170301 (DE-627)OLC1991115717 (DE-599)GBVOLC1991115717 (PRQ)c841-23c048cc259319a8d8d931f08fd0cac80974b9664d51832e3e913847dcbbfba70 (KEY)0163754120170000045000200139forelandexhumationcontrolledbycrustalthickeningint DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Schwartz, Stéphane verfasserin aut Foreland exhumation controlled by crustal thickening in the Western Alps 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Sedimentary basins Crust Earth Plate tectonics Mountains Sedimentary geology Basins Deformation Gautheron, Cécile oth Audin, Laurence oth Dumont, Thierry oth Nomade, Jérôme oth Barbarand, Jocelyn oth Pinna-Jamme, Rosella oth van der Beek, Peter oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 2, Seite 139-142 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:2 pages:139-142 http://dx.doi.org/10.1130/G38561.1 Volltext http://search.proquest.com/docview/1861329751 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 2 139-142 |
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10.1130/G38561.1 doi PQ20170301 (DE-627)OLC1991115717 (DE-599)GBVOLC1991115717 (PRQ)c841-23c048cc259319a8d8d931f08fd0cac80974b9664d51832e3e913847dcbbfba70 (KEY)0163754120170000045000200139forelandexhumationcontrolledbycrustalthickeningint DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Schwartz, Stéphane verfasserin aut Foreland exhumation controlled by crustal thickening in the Western Alps 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Sedimentary basins Crust Earth Plate tectonics Mountains Sedimentary geology Basins Deformation Gautheron, Cécile oth Audin, Laurence oth Dumont, Thierry oth Nomade, Jérôme oth Barbarand, Jocelyn oth Pinna-Jamme, Rosella oth van der Beek, Peter oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 2, Seite 139-142 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:2 pages:139-142 http://dx.doi.org/10.1130/G38561.1 Volltext http://search.proquest.com/docview/1861329751 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 2 139-142 |
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foreland exhumation controlled by crustal thickening in the western alps |
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Foreland exhumation controlled by crustal thickening in the Western Alps |
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In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. |
| abstractGer |
In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. |
| abstract_unstemmed |
In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we investigate the burial and exhumation history of Tertiary flexural basins located in the Western Alpine foreland, at the front of the Digne thrust sheet (southeast France), using low-temperature apatite fission-track and (U-Th)/He thermochronology. Based on the occurrence of partially to totally reset ages, we document 3.3-4.0 km of burial of these basin remnants between ca. 12 Ma and 6 Ma, related to thin-skinned thrust-sheet emplacement without major relief generation. The onset of exhumation is dated at ca. 6 Ma and is linked to erosion associated with significant relief development. This evolution does not appear to have been controlled by major climate changes (Messinian crisis) or by European slab breakoff. Rather, we propose that the erosional history of the Digne thrust sheet corresponds to basement involvement in foreland deformation, leading to crustal thickening. Our study highlights the control of deep-crustal tectonic processes on foreland relief development and its erosional response at mountain fronts. |
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