Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile.
Typically, the stratigraphic record of syn-eruptive fluvial successions is a pyroclastic-rich one. It includes an alternation of braided channel deposits and sheet-like floodplain strata, in which the occurrence of paleosols with in situ trees and primary pyroclastic deposits is common. The partici...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Asociación Argentina de Sedimentología
2022-07-01
|
| Series: | Latin American Journal of Sedimentology and Basin Analysis |
| Online Access: | https://www.lajsba.sedimentologia.org.ar/index.php/lajsba/article/view/215 |
| _version_ | 1827578857212870656 |
|---|---|
| author | Aldo Martín Umazano Emilio Bedatou Javier Marcelo Krause Eduardo Sergio Bellosi Pablo Martín Villegas |
| author_facet | Aldo Martín Umazano Emilio Bedatou Javier Marcelo Krause Eduardo Sergio Bellosi Pablo Martín Villegas |
| author_sort | Aldo Martín Umazano |
| collection | DOAJ |
| description |
Typically, the stratigraphic record of syn-eruptive fluvial successions is a pyroclastic-rich one. It includes an alternation of braided channel deposits and sheet-like floodplain strata, in which the occurrence of paleosols with in situ trees and primary pyroclastic deposits is common. The participation of facies formed from sediment-laden flows is also a conspicuous feature in these successions. Nevertheless, the disturbances occurred in the chilean Blanco River in 2008, as a consequence of the large tephra influx from the Chaitén Volcano eruption, result in discrepancies with the mentioned conceptual background including the plan-view form and filling of channels, and lateral compositional changes along the river. These discrepancies would response to local conditions such as precipitation, vegetation, topography, and type and amount of available sediment. Furthermore, the connection between the Blanco River and the Pacific Ocean, adds an additional feature to syn-eruptive fluvial successions, represented by associated delta plain deposits composed of volcaniclastic sands.
|
| first_indexed | 2024-03-08T21:53:24Z |
| format | Article |
| id | doaj.art-c4e5f0c3b3a14cb9b0fd54ecc9c1c316 |
| institution | Directory Open Access Journal |
| issn | 1669-7316 1851-4979 |
| language | English |
| last_indexed | 2024-03-08T21:53:24Z |
| publishDate | 2022-07-01 |
| publisher | Asociación Argentina de Sedimentología |
| record_format | Article |
| series | Latin American Journal of Sedimentology and Basin Analysis |
| spelling | doaj.art-c4e5f0c3b3a14cb9b0fd54ecc9c1c3162023-12-20T06:17:03ZengAsociación Argentina de SedimentologíaLatin American Journal of Sedimentology and Basin Analysis1669-73161851-49792022-07-01291Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile.Aldo Martín UmazanoEmilio BedatouJavier Marcelo KrauseEduardo Sergio BellosiPablo Martín Villegas Typically, the stratigraphic record of syn-eruptive fluvial successions is a pyroclastic-rich one. It includes an alternation of braided channel deposits and sheet-like floodplain strata, in which the occurrence of paleosols with in situ trees and primary pyroclastic deposits is common. The participation of facies formed from sediment-laden flows is also a conspicuous feature in these successions. Nevertheless, the disturbances occurred in the chilean Blanco River in 2008, as a consequence of the large tephra influx from the Chaitén Volcano eruption, result in discrepancies with the mentioned conceptual background including the plan-view form and filling of channels, and lateral compositional changes along the river. These discrepancies would response to local conditions such as precipitation, vegetation, topography, and type and amount of available sediment. Furthermore, the connection between the Blanco River and the Pacific Ocean, adds an additional feature to syn-eruptive fluvial successions, represented by associated delta plain deposits composed of volcaniclastic sands. https://www.lajsba.sedimentologia.org.ar/index.php/lajsba/article/view/215 |
| spellingShingle | Aldo Martín Umazano Emilio Bedatou Javier Marcelo Krause Eduardo Sergio Bellosi Pablo Martín Villegas Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile. Latin American Journal of Sedimentology and Basin Analysis |
| title | Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile. |
| title_full | Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile. |
| title_fullStr | Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile. |
| title_full_unstemmed | Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile. |
| title_short | Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile. |
| title_sort | improving the facies model for syn eruptive fluvial successions lessons from the chaiten volcano and blanco river chile |
| url | https://www.lajsba.sedimentologia.org.ar/index.php/lajsba/article/view/215 |
| work_keys_str_mv | AT aldomartinumazano improvingthefaciesmodelforsyneruptivefluvialsuccessionslessonsfromthechaitenvolcanoandblancoriverchile AT emiliobedatou improvingthefaciesmodelforsyneruptivefluvialsuccessionslessonsfromthechaitenvolcanoandblancoriverchile AT javiermarcelokrause improvingthefaciesmodelforsyneruptivefluvialsuccessionslessonsfromthechaitenvolcanoandblancoriverchile AT eduardosergiobellosi improvingthefaciesmodelforsyneruptivefluvialsuccessionslessonsfromthechaitenvolcanoandblancoriverchile AT pablomartinvillegas improvingthefaciesmodelforsyneruptivefluvialsuccessionslessonsfromthechaitenvolcanoandblancoriverchile |