Lapili tuff & volcanic breccia

Virtual Museum ID: 20-S23-34

Specimen Summary

These deposits were formed when airborne debris from nearby volcanic eruptions was deposited over a wide area. The red and maroon colours indicate a subaerial rather than a submarine environment.

These rocks are believed to be mainly early Jurassic in age deposited during the Sinemurian time period. Further east in McKendrick Pass and Saturday Lake areas a thick polymictic basal conglomerate separates these rocks from older late Triassic volcanic rocks of the Takla Group.

Specimen Data


The information listed below relates to the current holding location or collection that the sample is from, and whether the item is viewable at that location or is part of a private collection. Coordinates are given as guides, and we remind you that collecting specimens from these locations is not allowed. Caution is advised visiting such sites and Below BC assumes no responsibility for any injuries or trespassing charges that may occur as a result of the viewer entering these sites.

Collection Details

Original Collection:

Smithers Exploration Group (SEG)

Sub Collection:

Hazelton Road Trip

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Location Information

Sample Origin:

Smithers area, B.C.

Specific Site:

Outcrop on the Granisle connector rd at 2km's

UTM Easting:


UTM Northing:



09 (NAD 83)

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Specimen Details

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Primary Features:

Lapili tuff & volcanic breccia

Primary Mineral Formula:

Primary Category:

Secondary Features:


Advanced Geological Information


The following section provides geological data relating to the specimen or the site it was collected from, when available. Information has been obtained from various sources including private and government datasets but may not be up to date. Any geological time periods or ages listed often relate to the primary geology of the area, and may not be the actual date of an event such as mineral formation.

Geological Formation:

lJHTlt - Hazelton Group - Telkwa Formation - Lower Unit

Geological Period:

Lower Jurassic

Stratigraphic Age:

174.1 to 201.3 Million Years

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Additional Images