Hazelton Arc Geotour

 

Location ID: 20-NBC-GT2

 

 

Bulkley Valley Geology

The mountain ranges surrounding the valley are mainly volcanic rocks of Jurassic & late Cretaceous age while the valley floor is mainly early Cretaceous & Eocene sedimentary rocks. The mountain ranges surrounding the valley are mainly volcanic rocks of Jurassic & late Cretaceous age while the valley floor is mainly early Cretaceous & Eocene sedimentary rocks. The Bulkley Valley is a graben that started to formed around 50 m.y. ago during a time of crustal extension. Many of the current features of the valley are a result of the last glacial period of the current ice age.

 

Gigapan Images

(Stop 1)

Asitka Group limestone cut by feldspar porphyry dikes (Stop 3)

Well-bedded chert that is tightly folded and cut by post kinematic feldspar porphyry dikes (Stop 4A)

Well-bedded chert that is tightly folded and cut by post kinematic feldspar porphyry dikes (Stop 4B)

(Stop 6)

 (Stop 6b)

Lapilli tuff that is typical of the lower Telkwa Formation of the Hazelton Group (Stop 10A)

 (Stop 16)

 (Stop 17)

(Stop 18)

 (Stop 21b)

 (Stop 21c)

 (Stop 21d)

(Stop 21e)

 (Stop 23)

 (Stop 24a)

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(Stop 25-2)

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 Virtual Field School

 

This guide is based off of work by geologist Don MacIntyre and the Smithers Exploration Group, and covers the geology of the Smithers-Babine Lake-Hazelton area of west central British Columbia. This geotour examines the older component of Stikine Terrane in the region including the Upper Permian limestone to Upper Triassic island arc volcanic assemblages near Granisle on Babine Lake. In the Smithers and Hazelton areas the focus is on Jurassic, Cretaceous and Eocene overlap assemblages and post accretion structures related to crustal thickening and thinning events.

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Note: Some layers are only visible when zoomed to a particular level. If a layer does not show, try zooming in or out. For example, localized mineral showings require the map to be zoomed in, whilst regional terranes require a wider view.

 

Resources

 

Use the links below to access more information for class exercises, data and other useful information.

Sample Images

Rock Chips

Images of rock chips from locations mentioned on interactive map, with magnifying function

Document Library

GeoTour Guide

Road trip guide authored by Don MacIntyre PGeo. PEng.

Geological History

Presentation about Bulkley Valley geology by Don MacIntyre PGeo. PEng.

Road Trip!

Page dedicated to the original roadtrip designed by geologist Don MacIntyre

First Nation Resources

Pre-Historic Mining

A look at prehistory of First Nations peoples and the uses of natural products in everyday life.

Colonialism

The process and impacts of colonialism on First Nations peoples

Intro to UNDRIP

Slides providing a simple explanation of the United Nations Directive on the Rights of Indigenous Peoples

Mining Evolution

Taking a look at the evolution of mining in BC and the role of Indigenous Peoples as it changed over time.

Laws & Regulations

BC Regulations

Regulations pertaining to the collection of materials within British Columbia

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