Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines)
Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non...
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| Autor*in: |
Paguican, E. M. R. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2012 |
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| Anmerkung: |
© Springer-Verlag 2012 |
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| Übergeordnetes Werk: |
Enthalten in: Bulletin of volcanology - Springer-Verlag, 1986, 74(2012), 9 vom: 04. Okt., Seite 2067-2081 |
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| Übergeordnetes Werk: |
volume:74 ; year:2012 ; number:9 ; day:04 ; month:10 ; pages:2067-2081 |
| Links: |
|---|
| DOI / URN: |
10.1007/s00445-012-0652-7 |
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OLC2054805459 |
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| 520 | |a Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. | ||
| 650 | 4 | |a Mt Iriga | |
| 650 | 4 | |a Debris avalanche deposit | |
| 650 | 4 | |a Volcano-tectonics | |
| 650 | 4 | |a Transtensional faulting | |
| 650 | 4 | |a Emplacement kinematics | |
| 700 | 1 | |a van Wyk de Vries, B. |4 aut | |
| 700 | 1 | |a Lagmay, A. M. F. |4 aut | |
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10.1007/s00445-012-0652-7 doi (DE-627)OLC2054805459 (DE-He213)s00445-012-0652-7-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Paguican, E. M. R. verfasserin aut Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines) 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2012 Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. Mt Iriga Debris avalanche deposit Volcano-tectonics Transtensional faulting Emplacement kinematics van Wyk de Vries, B. aut Lagmay, A. M. F. aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 74(2012), 9 vom: 04. Okt., Seite 2067-2081 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:74 year:2012 number:9 day:04 month:10 pages:2067-2081 https://doi.org/10.1007/s00445-012-0652-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 74 2012 9 04 10 2067-2081 |
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10.1007/s00445-012-0652-7 doi (DE-627)OLC2054805459 (DE-He213)s00445-012-0652-7-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Paguican, E. M. R. verfasserin aut Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines) 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2012 Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. Mt Iriga Debris avalanche deposit Volcano-tectonics Transtensional faulting Emplacement kinematics van Wyk de Vries, B. aut Lagmay, A. M. F. aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 74(2012), 9 vom: 04. Okt., Seite 2067-2081 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:74 year:2012 number:9 day:04 month:10 pages:2067-2081 https://doi.org/10.1007/s00445-012-0652-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 74 2012 9 04 10 2067-2081 |
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10.1007/s00445-012-0652-7 doi (DE-627)OLC2054805459 (DE-He213)s00445-012-0652-7-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Paguican, E. M. R. verfasserin aut Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines) 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2012 Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. Mt Iriga Debris avalanche deposit Volcano-tectonics Transtensional faulting Emplacement kinematics van Wyk de Vries, B. aut Lagmay, A. M. F. aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 74(2012), 9 vom: 04. Okt., Seite 2067-2081 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:74 year:2012 number:9 day:04 month:10 pages:2067-2081 https://doi.org/10.1007/s00445-012-0652-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 74 2012 9 04 10 2067-2081 |
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10.1007/s00445-012-0652-7 doi (DE-627)OLC2054805459 (DE-He213)s00445-012-0652-7-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Paguican, E. M. R. verfasserin aut Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines) 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2012 Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. Mt Iriga Debris avalanche deposit Volcano-tectonics Transtensional faulting Emplacement kinematics van Wyk de Vries, B. aut Lagmay, A. M. F. aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 74(2012), 9 vom: 04. Okt., Seite 2067-2081 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:74 year:2012 number:9 day:04 month:10 pages:2067-2081 https://doi.org/10.1007/s00445-012-0652-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 74 2012 9 04 10 2067-2081 |
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10.1007/s00445-012-0652-7 doi (DE-627)OLC2054805459 (DE-He213)s00445-012-0652-7-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Paguican, E. M. R. verfasserin aut Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines) 2012 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2012 Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. Mt Iriga Debris avalanche deposit Volcano-tectonics Transtensional faulting Emplacement kinematics van Wyk de Vries, B. aut Lagmay, A. M. F. aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 74(2012), 9 vom: 04. Okt., Seite 2067-2081 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:74 year:2012 number:9 day:04 month:10 pages:2067-2081 https://doi.org/10.1007/s00445-012-0652-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 74 2012 9 04 10 2067-2081 |
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volcano-tectonic controls and emplacement kinematics of the iriga debris avalanches (philippines) |
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Volcano-tectonic controls and emplacement kinematics of the Iriga debris avalanches (Philippines) |
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Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. © Springer-Verlag 2012 |
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Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. © Springer-Verlag 2012 |
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Abstract Mt Iriga in southeastern Luzon is known for its spectacular collapse scar that was possibly created in 1628 ad by a 1.5-$ km^{3} $ debris avalanche. The debris avalanche deposit (DAD) covered 70 $ km^{2} $ and dammed the Barit River to form Lake Buhi. The collapse has been ascribed to a non-volcanic trigger related to a major strike-slip fault under the volcano. Using a combination of fieldwork and remote sensing, we have identified a similar size, older DAD to the southwest of the edifice that originated from a sector oblique to the underlying strike-slip fault. Both deposits cover wide areas of low, waterlogged plains, to a distance of about 16 km for the oldest and 12 km for the youngest. Hundreds of metre-wide and up to 50-m-high hummocks of intact conglomerate, sand and clay units derived from the base of the volcano show that the initial failure planes cut deep into the substrata. In addition, large proportions of both DAD consist of ring-plain sediments that were incorporated by soft-sediment bulking and extensive bulldozing. An ignimbrite unit incorporated into the younger DAD forms small (less than 5 m high) discrete hummocks between the larger ones. Both debris avalanches slid over water-saturated soft sediment or ignimbrite and spread out on a basal shear zone, accommodated by horst and graben formation and strike-slip faults in the main mass. The faults are listric and flatten into a well-developed basal shear zone. This shear zone contains components from the substrate and has a diffuse contact with the intact substrata. Long, transport-normal ridges in the distal parts are evidence of compression related to deceleration and bulldozing. The collapse orientation and structure on both sectors and DAD constituents are consistent with collapse being a response to combined transtensional faulting and gravity spreading. Iriga can serve as a model for other volcanoes, such as Mayon, that stand in sedimentary basins undergoing transtensional strike-slip faulting. © Springer-Verlag 2012 |
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