Akatore Fault; Reverse Fault; Fault Trenching; Holocene; Paleoseismology; East Otago; New Zealand

Author:

Taylor-Silva, Briar

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Abstract:

My thesis documents the first-ever paleoseismic trench investigation of the Akatore Fault, which has long been considered the most active fault to exist near Dunedin City. Two trenches were excavated across the fault in order to investigate the late Quaternary activity (timing, magnitude and recurrence of large ground rupturing earthquakes).

Trenching investigations at Big Creek and Rocky Valley have concluded that there have been three ground-rupturing earthquakes in the Holocene. An antepenultimate event has been constrained between 10,400

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184 pages A4

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2017Taylor-Silva

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OURArchive access level:

Open Access

Location (WKT, WGS84):

MULTIPOLYGON (((170.01732476684 -46.2522487078296,169.986529340236 -46.2347707468098,170.196091498041 -46.0448322899835,170.233040363231 -46.0582359272952,170.01732476684 -46.2522487078296)))

Abstract PDF File

http://download.otagogeology.org.nz/temp/Abstracts/2017Taylor-Silva.pdf

Collection

Citation

Taylor-Silva, Briar, “Akatore Fault; Reverse Fault; Fault Trenching; Holocene; Paleoseismology; East Otago; New Zealand ,” Otago Geology Theses, accessed September 26, 2017, http://theses.otagogeology.org.nz/items/show/655.