Deep bore holes reveal new insights into sediment deposition in the Wellington Basin (CBD) during the Late Pleistocene. A seminar by Matt Ryan *IN PERSON or ONLINE*

Date/Time
Date(s) - Thu 7 July
19:00 - 20:30

Location
Lecture Theatre One (GBLT1), Old Government Buildings, VUW


Matt Ryan
PDP Ltd

The 7.8 Mw Kaikōura earthquake in 2006 lead to the demolition of 15 buildings
along the Wellington waterfront, with insurance claims totalling to 1.84 billion
NZD. The engineering of seismically resilient buildings constructed thereafter
requires extensive ground investigations to build a more complete picture of
the subsurface conditions. These deep cores, used primarily for geotechnical
assessments, can be incredibly valuable, offering insights into prehistoric
landscapes and major past environmental shifts.

I will present some early data from deep cores retrieved from the Thorndon
Basin, Te Aro Basin, and the Hutt Valley, and outline their geological histories.
Several 100 +m cores showed distinct changes in sediment ranging from gravel,
sand, silt, shell rich mud, peat, to volcanic ash. This data can provide further
insights into the tectonic, sea level and vegetation histories on the landscape
over the Late Pleistocene in the Wellington Region.

Zoom link : https://vuw.zoom.us/j/92070598619