Unravelling fault structures of the Hamilton Basin.

Francesca Spinardi; Ben Campbell; Vicki Moon; Adrian Pittari; Bethany Fox; Willem de Lange

Unravelling fault structures of the Hamilton Basin.

Francesca Spinardi, Ben Campbell, Vicki Moon, Adrian Pittari, Bethany Fox, Willem de Lange

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Geological and geomorphological mapping provide evidence for three complex fault zones in the Hamilton Basin, an area with no previously mapped surface fault traces. Rectangular drainage patterns, stream knickpoints, and linear ridge and drainage systems all point to structural control on the path of the Waikato River and its tributary gullies. Exposed fault traces indicate significant
splintering of fault planes on encountering the soft sediments and tephras infilling the basin; hence fault zones are wide and characterised by multiple traces forming a complex ridge geomorphology. Steeply dipping normal faults are observed, with relative uplift to the north, indicating a north-south extensional environment. So far, no definitive evidence for movement more recent than 350 ka has been identified

Original language	English
Title of host publication	Proceedings of the 20th New Zealand Geotechnical Society Symposium
Editors	G. J. Alexander, C. Y. Chin
Pages	121-128
Number of pages	8
Publication status	Published - 2017
Externally published	Yes
Event	New Zealand Geotechnical Society Symposium: What in Earth is Going On? Balancing Risk, Reward and Reality - Napier, New Zealand Duration: 23 Nov 2017 → 26 Nov 2017 Conference number: 20 http://www.nzgs.org/event/nzgs-20th-symposium/ (Link to Conference Information)

Conference

Conference	New Zealand Geotechnical Society Symposium
Abbreviated title	NZGS
Country/Territory	New Zealand
City	Napier
Period	23/11/17 → 26/11/17
Internet address	http://www.nzgs.org/event/nzgs-20th-symposium/ (Link to Conference Information)

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NZGS_Symposium_20_Spinardi1Final published version, 0.98 MBLicence: Unspecified

Cite this

@inproceedings{be1dcb97ba944a76834ca48d5e4b54f3,

title = "Unravelling fault structures of the Hamilton Basin.",

abstract = "Geological and geomorphological mapping provide evidence for three complex fault zones in the Hamilton Basin, an area with no previously mapped surface fault traces. Rectangular drainage patterns, stream knickpoints, and linear ridge and drainage systems all point to structural control on the path of the Waikato River and its tributary gullies. Exposed fault traces indicate significantsplintering of fault planes on encountering the soft sediments and tephras infilling the basin; hence fault zones are wide and characterised by multiple traces forming a complex ridge geomorphology. Steeply dipping normal faults are observed, with relative uplift to the north, indicating a north-south extensional environment. So far, no definitive evidence for movement more recent than 350 ka has been identified",

author = "Francesca Spinardi and Ben Campbell and Vicki Moon and Adrian Pittari and Bethany Fox and {de Lange}, Willem",

year = "2017",

language = "English",

pages = "121--128",

editor = "Alexander, {G. J.} and Chin, {C. Y.}",

booktitle = "Proceedings of the 20th New Zealand Geotechnical Society Symposium",

note = "New Zealand Geotechnical Society Symposium : What in Earth is Going On? Balancing Risk, Reward and Reality, NZGS ; Conference date: 23-11-2017 Through 26-11-2017",

url = "http://www.nzgs.org/event/nzgs-20th-symposium/",

}

TY - GEN

T1 - Unravelling fault structures of the Hamilton Basin.

AU - Spinardi, Francesca

AU - Campbell, Ben

AU - Moon, Vicki

AU - Pittari, Adrian

AU - Fox, Bethany

AU - de Lange, Willem

N1 - Conference code: 20

PY - 2017

Y1 - 2017

N2 - Geological and geomorphological mapping provide evidence for three complex fault zones in the Hamilton Basin, an area with no previously mapped surface fault traces. Rectangular drainage patterns, stream knickpoints, and linear ridge and drainage systems all point to structural control on the path of the Waikato River and its tributary gullies. Exposed fault traces indicate significantsplintering of fault planes on encountering the soft sediments and tephras infilling the basin; hence fault zones are wide and characterised by multiple traces forming a complex ridge geomorphology. Steeply dipping normal faults are observed, with relative uplift to the north, indicating a north-south extensional environment. So far, no definitive evidence for movement more recent than 350 ka has been identified

AB - Geological and geomorphological mapping provide evidence for three complex fault zones in the Hamilton Basin, an area with no previously mapped surface fault traces. Rectangular drainage patterns, stream knickpoints, and linear ridge and drainage systems all point to structural control on the path of the Waikato River and its tributary gullies. Exposed fault traces indicate significantsplintering of fault planes on encountering the soft sediments and tephras infilling the basin; hence fault zones are wide and characterised by multiple traces forming a complex ridge geomorphology. Steeply dipping normal faults are observed, with relative uplift to the north, indicating a north-south extensional environment. So far, no definitive evidence for movement more recent than 350 ka has been identified

UR - http://www.nzgs.org/book-compilations/20th-nzgs-symposium/

M3 - Conference contribution

SP - 121

EP - 128

BT - Proceedings of the 20th New Zealand Geotechnical Society Symposium

A2 - Alexander, G. J.

A2 - Chin, C. Y.

T2 - New Zealand Geotechnical Society Symposium

Y2 - 23 November 2017 through 26 November 2017

ER -

Unravelling fault structures of the Hamilton Basin.

Abstract

Conference

UN SDGs

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