Publications

Porcellanite in Alberta : a pyrometamorphic pre-contact toolstone

Description

Porcellanite is a pyrometamorphic rock that forms when naturally ignited coal seams fuse fine-grained sedimentary rocks. This can produce a uniform material suitable for making stone tools. This paper presents photographs and geochemical analyses of Montana and North Dakota porcellanites in comparison to high quality pyrometamorphic rocks, and Alberta materials of similar origin or appearance. Results of portable X-ray fluorescence, Raman spectroscopy, and thin section analyses are combined with micro/macroscopic traits to aid identification.

Updated

June 21, 2021

Tags
Archaeological Survey of Alberta archaeology northern Plains pXRF porcellanite pyrometamorphic raman spectroscopy

Publisher / Creator Information

Publisher

Culture, Multiculturalism and Status of Women

Contributor

Allan, Timothy E.

Contributor

Yanickic, Gabriel.

Contributor

Moffata, Emily.

Contributor

Ivesd, John W.

Place of Publication

Edmonton

Resource Dates

Date Created

2021-06-21

Date Added

2021-06-23T14:23:45.894275

Date Modified

2021-06-21

Date Issued

2021-06-21

Audience information

Identifiers

ISBN (pdf)

9781460150566

ISSN (online)

2562-7848

Usage / Licence

Usage Considerations

Each article also published separately between April and September 2021.

Licence

No licence

Contact

Contact Name

Archaeological Survey of Alberta