Complex internal architecture of a debris‐flow deposit revealed using ground‐penetrating radar, Cass, New Zealand. (9th April 2013)

• Record Type: Journal Article
• Authors: Starheim, Colette C.A.; Gomez, Christopher; Harrison, Justin; Kain, Claire; Brewer, Nicholas J.; Owen, Kirsty; Hadmoko, Danang Sri; Purdie, Heather; Zawar‐Reza, Peyman; Owens, Ian; Wassmer, Patrick; Lavigne, Franck
• Is Part Of: New Zealand geographer. Volume 69:Number 1(2013:Apr.)
• Page Start: 26
• Page End: 38
• Publication Date: 2013-04-09
• Subjects: Geography -- Periodicals; New Zealand -- Description and travel -- Periodicals; 910
• DOI: 10.1111/nzg.12002
• Languages: English
• ISSNs: 0028-8144

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <p>Previous research on debris‐flow deposit structure typically reports little to no visually discernible stratigraphy. The preliminary findings presented here provide evidence for more complex internal deposit architecture with inverse grading and subunits thought to reflect individual flow surges. Ground‐penetrating radar surveys, geospatial data and field observations are used to describe 10 subunits traceable over the 14 lateral radargrams imaging the lower 38 m of the deposit. Additional subunits are depicted further upslope in a longitudinal transect. As well as demonstrating the need for continued investigation of deposit architecture using non‐traditional techniques, these results may help improve future interpretations of post‐event deposits.</p> </abstract>