Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/6493
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dc.contributor.authorKermode, SJ-
dc.contributor.authorCohen, TC-
dc.contributor.authorReinfelds, IV-
dc.contributor.authorNanson, GC-
dc.contributor.authorJones, BJ-
dc.date.accessioned2015-12-28T02:07:58Z-
dc.date.available2015-12-28T02:07:58Z-
dc.date.issued2013-08-27-
dc.identifier.citationKermode, S. J., Cohen, T. C., Reinfelds, I. V., Nanson, G. C., & Jones, B. G. (2013). Modern depositional processes in a confined bedrock setting: Benches of the Shoalhaven River. Paper presented at the 8th International conference (AIG) on Geomorphology, Paris - 2013, 27-31 August.en_AU
dc.identifier.govdoc6323-
dc.identifier.urihttp://irangeomorphology.ir/files/site1/pages/Conference%20poster/abstracts_book_iag_paris_2013-1_part1.pdfen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6493-
dc.description.abstractThe lower Shoalhaven River provides an opportunity to examine bench processes in a confined setting. Stratigraphic analysis of trenches and augur holes, ground penetrating radar, Hec-RAS modelling and geochronological techniques combine to identify that benches of multiple levels along Bull Reach are composed of coarse material and have been extensively eroded and reworked by modern events. Kermode et al. (2012) established the long-term polycyclical nature of the higher alluvial surfaces (up to 193 ka in age), and this is contrasted with the youth of the lower inset alluvial surfaces, which are shown to be less than 270 years in age. This study evaluates the relative significance of both flood regime and effects of European settlement on the geomorphic effectiveness of high magnitude events and investigates the characteristics of bench formation in this confined setting. It characterises the nature of depositional events and the relationship between facies at an event scale. Using Hec-RAS modelling, events of different recurrence intervals are compared to explore the relative impact of varying flood magnitudes. The results bring into question the theory that inundation frequencies of these surfaces are constant, or associated with formative processes. © Authorsen_AU
dc.description.abstractThe lower Shoalhaven River provides an opportunity to examine bench processes in a confined setting. Stratigraphic analysis of trenches and augur holes, ground penetrating radar, Hec-RAS modelling and geochronological techniques combine to identify that benches of multiple levels along Bull Reach are composed of coarse material and have been extensively eroded and reworked by modern events. Kermode et al. (2012) established the long-term polycyclical nature of the higher alluvial surfaces (up to 193 ka in age), and this is contrasted with the youth of the lower inset alluvial surfaces, which are shown to be less than 270 years in age. This study evaluates the relative significance of both flood regime and effects of European settlement on the geomorphic effectiveness of high magnitude events and investigates the characteristics of bench formation in this confined setting. It characterises the nature of depositional events and the relationship between facies at an event scale. Using Hec-RAS modelling, events of different recurrence intervals are compared to explore the relative impact of varying flood magnitudes. The results bring into question the theory that inundation frequencies of these surfaces are constant, or associated with formative processes.-
dc.language.isoenen_AU
dc.publisherInternational Association of Geomorphologistsen_AU
dc.subjectMeetingsen_AU
dc.subjectAustraliaen_AU
dc.subjectNew South Walesen_AU
dc.subjectDepositionen_AU
dc.subjectRiversen_AU
dc.subjectFloods-
dc.subjectAlluvial deposits-
dc.titleModern depositional processes in a confined bedrock setting: benches of the Shoalhaven riveren_AU
dc.typeConference Abstracten_AU
dc.date.statistics2015-11-27-
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